ML20112B964
| ML20112B964 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 05/01/1996 |
| From: | Doroshuk B, Hatch T, Tilden B BALTIMORE GAS & ELECTRIC CO. |
| To: | |
| Shared Package | |
| ML20112B955 | List: |
| References | |
| NUDOCS 9605240108 | |
| Download: ML20112B964 (104) | |
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O Calvert Cliffs NuclearPower Plant License RenewalProject 1
Aging Management Review Report for the Diesel Fuel Oil System (023) ,
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- l Revision 1 April,1996 Prepared by: T l. llztht. Date: 4l3oj 90 T. R. Hatch Reviewed by: Date: fo/f(
B. M. Tilden Approved by: W b Date: T///96 IB. W. Doroshuk O
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Calvert Cliffs Nuclear Power Plant O ticen c acac aiProicct Aging Management Review Report for the Diesel Fuel Oil System (023)
Revision 1 April,1996 O
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, Diesel Fuel OilSystem Aging Management Review Report Diesel Fuel Oil System Evaluation Report Table of Contents ,
List of Tables ii List of Effective Sections lii Summary of Revisions iv
1.0 INTRODUCTION
1 1.1 Diesel Fuel Oil System Description 1-1 1.1.1 Diesel Fuel Oil System Description 1-1 1.1.2 Diesel Fuel Oil System Boundary 1-1 1.1.3 Diesel Fuel Oil Intended System Functions 1-2 1.2 Evaluation Methods 1-2 1.3 System-Specific Definitions 1-3 1.4 System-Specific References 1-3 2.0 STRUCTURES AND COMPONENTS WITHIN TIIE SCOPE OF LICENSE RENEWAL 2-1 p)
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2.1 Component Level Scoping Methodology Overview 2.2 Component Level Scoping Results 2-1 2-1 3.0 COMPONENT PRE-EVALUATION 3-1 3.1 Pre-Evaluation Method 3-1 3.2 Pre-Evaluation Results 3-1 4.0 COMPONENT AGING MANAGEMENT REVIEW 4-1 4.1 Aging Management Review Methodology Overview 4-1 4.2 Age-Related Degradation Mechanisms 4-2 4.2.1 Potential ARDMs 4-2 4.2.2 Component Grouping 4-3 4.2.3 Plausible ARDMs 4-3 4.3 Methods to Manage the Effects of Aging 4-3 Appendix A Diesel Fuel Oil System Aging Management Review, LCM-16 Attachments l
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List of Tables Eage Table 1-1 System-Specific References 1-4 Table 2-1 DFO Device Types Within the Scope of 2-2 License Renewal Table 3-1 Diesel Fuel Oil Intended System Function Disposition 3-2 Table 3-2 Summary of Diesel Fuel Oil System Device Types 3-3 Requiring Aging Management Review Table 4-1 POTENTIAL Age-Related Degradation 4-5 Mechanisms (ARDMs)
Table 4-2 PLAUSIBLE Age-Related Degradation Mechanisms 4-6 l
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Sgtion Description Revision l Table of Contents 1 List of Effective Sections 1 Summary of Revisions 1 1.0 Introduction 1 2.0 Structures and Components Within the Scope of License 1 Renewal 3.0 Component Pre-Evaluation 1 l
4.0 Component Aging Management Review 1 l Appendix A Table of Contents 1 Attachment 1 Component Aging Mangement Review Summary 1 Attaclunent 2 Description of Programs Which Manage the Effects of 1 Aging l
(N Attachment 8 Development of Aging Management Alternatives 1 l
'n Attachment 10 Program / Activity (PA) Modifications 1
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Attach 7 Pipe, Potential ARDM List I l Attach 3,4,5,6 AMR of Group 023-HB-01 1
- Attach 3,4,5,6 AMR of Group 023-HB-02 1 l l Attach 7 Valve, Potential ARDM List 1 l l Attach 3,4,5,6 AMR of Group 023-CKV-01 1 Attach 3,4,5,6 AMR of Group 023-HV-01 1 l Attach 7 Accumu, Potential ARDM List 1 Attach 3,4,5,6 AMR of Group 023-TK-01 1 i l
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Diesel Fuel OilSystem Aging Management Review Report d;D Summary of Revisions Revision Change Description 00 Initial Issue !
01 General update for CCNPP IPA Methodology, Revision 1, and i revision to component pre-evaluation and aging management review a
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1.0 INTRODUCTION
1.1 Diesel Fuel Oil System Description This section describes the scope and boundaries of the Diesel Fuel Oil System as it was evaluated. Section 1.1.1 provides a brief synopsis of the system as described in existing plant documentation. System boundaries (as described in ES-032, Revision 0) are provided in Section 1.1.2 to clarify the extent of the Diesel Fuel Oil System considered in this evaluation. Section 1.1.3 is a detailed breakdown of the intended system functions within the scope oflicense renewal and is provided as the basis for the identification of components required to ,
support those intended functions.
1.1.1 Diesel Fuel Oil System Description The purpose of the Diesel Fuel Oil System is to provide a reliable supply of fuel oil to the emergency diesel generators, the auxiliary boilers, the SBO diesel generator, and the diesel-driven fire pump. The components of the Diesel Fuel Oil System that maintain pressure boundary of the (n) system liquid are the focus of the aging evaluation for LCM.
The major component groups that support the pressure boundary of the system liquid function are the fuel oil tanks, valves and pipes which l transport the oil.
The Diesel Fuel Oil System was determined to be within the scope of License Renewal during the System Level Scoping Process.
1.1.2 Diesel Fuel Oil System Boundary The Diesel Fuel Oil System is composed of the following components:
Two Diesel Fuel Oil 125,000 Gallon capacity (each).
Storage Tanks Valves Check and Hand Valves.
Piping All - Carbon Steel, Pickled Exposed - Painted Buried - Coated & Wrapped.
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The Diesel Fuel Oil System interfaces with the following systems and components:
Emergency Diesel Generators (Suction of Fuel transfer pumps)
Auxiliary Boiler Diesel Driven Fire Pump SBO Diesel Generator The boundary between the Diesel Fuel Oil System (023) and the Emergency Diesel Generator (024) is just upstream of the Y strainers installed in the suction pipe to the fuel transfer pumps.
1.1.3 Diesel Fuel Oil Intended System Functions e Provide VA function to the power distribution system by supplying fuel oil to the EDGs during a DBE.
n e To maintain the pressure boundary of the system liquid.
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. To provide essential fuel oil to EDGs and FP pump diesel to ensure safe shutdown in the event of a postulated severe fire (includes isolation of I nonessential aux boiler and SBO diesel fuel oil).
1.2 Evaluation Methods i i
Diesel Fuel Oil System components within the scope oflicense renewal were l identified through the use of the BGE procedure for Component Level Scoping of l Systems. The results of the scoping process are presented in Section 2.0 of this report. ;
, 1 Diesel Fuel Oil System components within the scope oflicense renewal were then evaluated using the BGE procedure for Component Pre-Evaluation to identify i passive, long-lived, non-commodity components that must be evaluated for 1 management of the effects of age-related degradation. The results of the Pre-evaluation process are presented in Section 3.0 of this report.
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All components subject to aging management review are evaluated in accordance with the BGE procedure for Component Aging Management Review. This l procedure is performed to determine plausible aging effects and the appropriate l
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(. Diesel Fuel OilSystem Aging Management Review Report 1 methods to manage these effects. The results of the Aging Management Review l process are discussed in Section 4.0 of this report. j l
l 1.3 System-Specific Definitions This section provides the definitions for any specific terms unique to the Diesel Fuel Oil System component aging evaluation. 1 Term Description None 1.4 System-Specific References
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l Several sources were used to determine Potential and Plausible ARDMs for the i
Diesel Fuel Oil evaluation. These sources include NRC Draft Regulatory Guide I l
,- DG-1009," Standard Format and Content ofTecimicalInformation for l ('"j Applications to Renew Nuclear Power Plant Operating Licenses". Detailed drawings and other controlled documents of the Diesel Fuel Oil System were utilized to verify materials, design configurations and location of components.
Table 1-1 lists the references utilized in the completion of the Diesel Fuel Oil System component aging evaluation.
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Table 1-1 System-Specific Rcferences Document ID Document Title Rex Daic ASME Wear Control Handbook, Peterson -
1980 and Winer Component Evaluation and Program 00 3/22/95 Evaluation Results for Fuel Oil Storage Tank No.21 Enclosure, Appendix E,(Part of the Component Evaluation and Program Evaluation of Four Structures)
Corrosion and Corrosion Control, An -
1985
! Introduction to Corrosion Science and Engineering, Uhlig, Third Edition Corrosion Engineering, Fontana and -
1978
, Gp' Greene Metals Handbook,9th Edition, Vol 13, -
1987 Corrosion Pre-evaluation Results for the Diesel Fuel 01 3/11/96
- Oil System (023) 12329-0001 Elevation,2 - 30'-0" Dia x 24'-0" Ht, Fuel 0 1970 Oil Storage Tanks 12329-0003 Roof Plan, Bottom Plan and Orientation, 7 7/6/71 Fuel Oil Storage Tanks l
l 12329-0005 Accessories for 2 - 30' x 24' Ht, Fuel Oil 5 6/4/92 l Storage Tanks )
l 12329-0010 General Notes for 2 Fuel Oil Storage Tanks 2 7/30/70 12503A-0015 Piping Isometric, Fuel Oil 7 12/5/90 12639A-0001 Piping Isometric, Fuel Oil 4F 11/25/74 12639A-0002 Piping Isometric, Fuel Oil 1F 12/3/73
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Document ID Document Title Rer Date 12639A-0003 Piping Isometric, Fuel Oil 6F 11/27/74 12639A-0004 Piping Isometric, Fuel Oil 5F 11/27/74 12639A-0005 Piping Isometric, Fuel Oil 6F 11/25/74 12639A-0006 Piping Isometric, Fuel Oil 4F ' 11/25/74 12639A-0007 Piping Isometric, Fuel Oil 5F 11/26/74 12639A-0008 Piping Isometric, Fuel Oil 3F 7/17/72 i
12639A-0009 Piping Isometric, Fuel Oil 5F 11/26/74
/G 60262 Piping and Instrument Diagram - Fuel Oil 28 6/22/94 k) Storage System (Refs60-736) 60484 S110001 Fuel Oil Storage Piping Plan and Sections 10 8/2/95 60484 SH0002 Fuel Oil Storage Piping Plan and Sections 0 2/20/95 60736 Operations Drawing, Fuel Oil Storage 32 8/9/95 System, Unit 1 & 2 61200 Cathodic Protection - Containment, Unit 1 10 4/4/75
- 2, Reference Electrodes 61201 Cathodic Protection - Shallow Anode Beds 23 12/12/95 and Reference Electrodes 61202 Cathodic Protection - Water & Fuel 10 12/12/95 Storage Tanks 61203 Cathodic Protection - Containment 13 7/11/95 Structures 1 & 2, Miscellaneous Details l
61406-A,101.0 Cathodic Protection, Installation Standard 00 4/10/91 rmemvi 1-5 Revision 1 i
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Table 1-1 System-Specific References (Continued)
Document ID Document Title Rey Date 61813 Yard Tank Foundations 05 3/22/88 63548 SH0007 lard Foundations and Structures 04 10/5/73 91423 Piping Isometric, Fuel Oil 2 1/27/88 91424 Piping Isometric, Fuel Oil 4 10/10/91 92767SH HB-1 M-600 Piping Class Sheet for HB 54 12/15/95 92769HBSH HB-1 M-601 Piping Class Sununary Sheet with 22 12/28/95 HB-5 (Fuel Oil) 92771 M-602 Master Valve List Sheets:
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/ Sht. Check-2 34 5/3/94 C}
Sht. Gate-2 32 5/17/93 l Sht. Globe-2 33 5/3/94 ASTM A 105 Forged or Rolled Steel Pipe Flanges, -
1968 Forged Fittings, and Valves and Parts for High-Temperature Service, From 1970 Annual Book of ASTM Standards ASTM A 105 Forgings, Carbon Steel, for Piping -
1971 Components, From 1973 Annual Book of ASTM Standards l
ASTM A 105 Standard Specification for Carbon Steel -
1995b Forgings for Piping Applications, From 1996 World Wide STDS Service ASTM A 106 Scamless Carbon Steel Pipe for High-Temperature Service, From following Annual Books of ASTM Standards 1970 -
1968 1973 -
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Table 1-1 i System-Specific References (Continued) 1 Document ID Document Title Rer Date i ASTM A 106 Standard Specification for Seamless Carbon Steel Pipe for High-Temperature Service, From 1996 World Wide STDS -
1994a i Service l
ASTM A 181 Forged or Rolled Steel Pipe Flanges, )
Forged Fittings, and Valves and Parts for General Service, From following Annual Books of ASTM Standards 1970 -
1968 1973 -
1968 ASTM A 181 Standard Specification for Carbon Steel Forgings, for General Service, From 1996 q) World Wide STDS Service -
1995a ASTM A 193 Alloy-Steel Bolting Materials for High- 1969 Temnerature Service, From 1970 Annual Book of ASTM Standards ASTM A 193 Alloy-Steel and Stainless Steel Bolting -
1971 Materials for High-Temperature Service, From 1973 Annual Book of ASTM Standards ASTM A 193 Standard Specification for Alloy-Steel and -
1995 Stainless Steel Bolting Materials fa; High-Temperature Service, From 1996 \ 'orld Wide STDS Service ASTM A 216 Carbon-Steel Castings Suitable for Fusion Welding for High-Temperature Service, From following Annual Books of ASTM Standards 1970 -
1969 n 1973 -
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V Table 1-1 System-Specific References (Continued)
Document IQ Document Title Ecr Dats ASTM A 216 Standard Specification for Steel Castings ,
Carbon, Suitable for Fusion Welding, for High-Temperature Service, From 1996 World Wide STDS Service -
1993 ASTM A 283 Low and Intermediate Tensile Strength Carbon Steel Plates of Structural Quality, From following Annual Books of ASTM Standards i 1970 -
1967 l 1973 -
1970a l ASTM A 283 Standard Specification for Low and -
1993a
'q Intermediate Tensile Strength Carbon Steel V Plates, From 1996 World Wide STDS Service BGM-96-031 Letter, J.Poehler to NCR Group, -
8/28/90 Molybdenum Disulfide Thread Lubricants for the RV Head and other Applications, NCR #10295 C-96-003 Cummins Service Infom1ation Bulletin, -
1978 t
Microbial Contamination of Diesel Fuel, 1
78 SIB 5-7 CH-1-100 Controlled Material Management 01 2/1/95 l
l CLSR CCNPP Component Lesel Screening 01 1992 l Results - System 023 i
CP-226 Oil Receipt Inspection and Fuel Oil 03 3/30/95 Storage Tank Surveillance (PCR 94-082)
CP-503 Sampling of Oil (PCR 94-025) 04 12/27/95 on=1mvi 1-8 Revision 1
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Document ID Document Title Rex Date CP-927 Determination of Water and Sediment in 02 9/30/93 Oils by Centrifuge (PCR 93-087)
CP-955 Determination of Water in Oils by 03 9/26/95 Coulometry (PCR 93-069)
CP-973 Determination of Particulate 03 2/6/96 Contamination in Diesel Fuel Oil (PCR 93-095)
CP-996 Determination of Microbial Growth (PCR 01 3/8/94 94-006)
DG-1009 Standard Format and Content of Technical -
1990 (O
Information for Applications to Renew Nuclear Power Plant Operating Licenses, Draft NRC Regulatory Guide ES-014 Summary of Ambient Environmental 0 11/8/95 Service Conditions Used at CCNPP ES-032 Control of the Equipment Technical 0 1995 Databases (Nucleis - Master Equipment l List and CCETS)
FSK-MP-207 Piping Isometric, Fuel Oil 1 2/20/95 FSK-MP-212 Piping Isometric, Fuel Oil 2 11/14/74 FSK-MP-227 Piping Isometric, Fuel Oil 2 11/14/74 FSK-MP-232 Piping Isometric, Fuel Oil 2 12/5/74 FSK-MP-488 Fuel Oil Storage Tank Trim #11 & #21, 1 8/3/72 HB-5 g] FSK-MP-899 Piping Isometric, Fuel Oil 4 8/17/76 v
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Table 1-1 System-Specific References (Continued)
Document ID Document Title Rex Date FSK-MP-903 Piping Isometric, Fuel Oil 4 8/17/76 FSK-MP-2667 Piping Isometric, Fuel Oil 0 11/14/74 G:\ PES \95GiO3- Letter, V.Spunar to Distribution,11 Fuel -
1/3/96 200 Oil Storage Tank Inspection (11/1/95)
LCM 95-112 Letter, J.Rycyna to file, Boric Acid -
3/29/95 Corrosion LCM 96-044 Letter, B.Tilden to file, Age Related -
2/15/96 Degradation Inspections LCM-16 Component Aging Management Review, 4 1995 O
i LCMU Procedure Q'
LER 89-26 Potential Emergency Diesel Generator 00 1989 Failure due to High Particulate Level in Fuel M-0080 Fuel Oil Unloading Pump, Specification 01 10/6/70 M-216 Specification for Field Erected Storage 10 1974 Tanks M-289 Guidelines for Field Fabrication and 00 4/22/77 Installation of Non-Nuclear Piping and Instrumentation MN-3-100 Painting and other Protective Coatings 01 6/25/95 NACE-5 Stress Corrosion Cracking and Hydrogen -
1977 Embrittlement ofIron Base Alloys, Meeting held June 12-16,1973 NP-2129 EPRI Report, Radiation Effects on Organic -
1981 l (~' Materials in Nuclear Plants m.,,o ni 1-10 Revision I
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Document ID Document Title Ret Date NP-3137 EPRI Report, Computer - Calculated -
1983 Potential pH Diagrams to 300 C, Vol i NP-3784 EPRI Report, A Survey of the Literature on -
1984 Low-Alloy Steel Fastener Corrosion in PWR Power Plants NP-3944 EPRI Report, Erosion / Corrosion in Nuclear -
1985 Plant Steam Piping NP-5461 EPRI Report, Component Life Estimation: -
1987 LWR Structural Materials Degradation Mechanisms
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C NP-5769 EPRI Report, Degradation and Failure of -
1988 I
Bolting in Nuclear Power Plants NP-5775 EPRI Report, Environmental Effects on -
1988 Components: Commentary for ASME Section III NP-5985 Boric Acid Corrosion of Carbon and Low -
1988 Alloy Steel Pressure Boundary Materials NUREG/CR-5379 Nuclear Plant Service Water System Aging Degradation Assessment
. Volume 1 -
1989 ,
. Volume 2 -
1992 NUREG/CR-5419 Aging Assessment ofInstrument Air -
1990 Systems NUIEG/CR-5643 Insights Gained from Aging Research -
1992
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1 Table 1-1 System-Specific References (Continued)
I Document ID Document Title Rex Date 01-21 Operating Instruction, Emergency Diesel 26 7/6/95 Generators OI-21D Operating Instruction, Fuel Oil Storage and 0 8/25/95 Supply PEG-7 Plant Engineering Section, System 4 11/30/95 l Walkdowns l
PEO-0-23-2-0-M FOST Drain Water 02 8/21/95
! QL-2-100 Issue Reporting and Assessment 04 1/2/96 TR-102204 EPRI Report, Service (Salt) Water System -
1993 Life Cycle Management Evaluation l
l TS CCNPP Technic'al Specification, Section Amend -
4.8.1.1.2
- Unit 1 211
! e Unit 2 188 l I
U-96-001 BIOBOR JF Fuel Fungicide Service -
1981 i Bulletin No. 279 l
i UFSAR CCNPP Updated Final Safety Analysis 18 -
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\s) l l 2.0 STRUCTURES AND COMPONENTS WITIIIN TIIE SCOPE OF
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2.1 Component Level Scoping Methodology Overview The Diesel Fuel Oil System components were scoped in accordance with the process described in the BGE Life Cycle Management Program Methodology for Integrated Plant Assessment. The purpose of component level scoping is to identify all system components that support the intended system functions identified in Section 1.1.3 for the Diesel Fuel Oil System. These components are within the scope oflicense renewal.
2.2 Component Level Scoping Results A total of 94 components (unique equipment ioentifiers), representing 13 device types in the Diesel Fuel Oil System, were designated as within the scope oflicense renewal. These device types are listed in Table 2-1.
rS The portion of the Diesel Fuel Oil System within the scope oflicense renewal Q consists of piping, components, component supports, instrumentation, and cables for the section of the system supporting fuel oil unloading, the storage of fuel, and transport of fuel to the Emergency Diesel Generators.
Refer to the results of the Diesel Fuel Oil System Component Level Scoping for the list ofintended functions, the list of components within the scope oflicense l
renewal, and other scoping-related details.
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Table 2-1 DFO Device Types Within Scope of License Renewal j I
Device Code Device Description
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-HB Piping, HB '
CKV Check Valve r HV Hand Valve l
TK Tank BS Basket Strainer FU Fuse HS Hand Switch
- LS Level Switch l
MO Motor PUMP Pump i
RY Relay l X Transformer XL Indicating Lamp l
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3.0 COMPONENT PRE-EVALUATION 3.1 Pre-Evaluation Method The component pre-evaluation procedure is used to determine which components are subject to an aging management review (AMR). This procedure is used to categorize intended system functions as active or passive, determine if the components supporting passive system functions are long-lived, and identify the set of components subject to aging management review.
The pre-evaluation also determines whether the components should be included in a commodity group AMR or the system AMR.
3.2 Pre-Evaluation Results Table 3-1 summarizes the disposition ofintended system functions for the Diesel Fuel Oil System. These function are derived from the system functions identified and documented during the Component Level Scoping process, which are listed in n subsection 1.1.3.
V Components supporting only active intended system functions (i.e., not passive components) and those that are subject to replacement based on qualified life (i.e.,
not long-lived components) do not require an aging management review.
Components that are evaluated as part of commodity evaluations are addressed in separate AMRs. The Diesel Fuel Oil system components dispositioned as part of conunodity evaluations include all component supports', all cables' , and all instrument devices that support passive functions (that are not subject to a replacement program).
Table 3-2 summarizes the disposition of the device types identified in Table 2-1 as within the scope oflicense renewal for the Diesel Fuel Oil System.
Refer to the results of the Diesel Fuel Oil System Component Pre-evaluation for the list of components subject to AMR and other details.
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Function l Function Description Passive Provide VA function to the power No distribution systems by supplying fuel oil to the EDGs during a DBE To maintain the pressure boundary of the Yes system liquid.
, To provide essential fuel oil to EDGs and No FP INmp Diesel to ensure safe shutdown in the event of a postulated severe fire (includes isolation of nonessential aux l boiler and SBO diesel fuel oil)
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! Summary of Diesel Fuel Oil System Device Types l
Requiring Aging Management Review l l
I Components Components Components ,
Support Subject to Evaluated in Components !
i Device Passive Replacement Commodity included in !
l Code Device Description Function ? Program ? Evaluation ? DFO AMR?
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-HD DFO Piping Yes No No Yes CKV Check Valve Yes No No Yes l HV Hand Valve Yes No No Yes TK Tut'; Yes No No Yes BS Basket Strainer No No No No FU Fuse No No No No HS Hand Switch No No No No
! r'] LS Level Switch Yes No Yes No MO Motor No No No No PUMP Pump No No No No RY Relay No No No No X Transformer No No No No XL Indicating Lamp No No No No l
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4.0 COMPONENT AGING MANAGEMENT REVIEW 4.1 Aging Management Review Methodology Overview The aging management review of Diesel Fuel Oil System components was !
performed in accordance with the process described in the Calvert Cliffs Nuclear l
Power Plant Integrated Plant Assessment Methodology as specified in the ;
l procedure for the component aging management review. This procedure requires the identification of plausible age related degradation mechanisms (ARDMs) for each component subject to aging management review, unless it can be demonstrated that the effects of aging can be managed without specifying ARDMs. The effects of the ARDMs on the ability of the components to support intended functions are identified and the ability of existing plant programs to adequately manage the effects of these ARDMs is evaluated.
The review accomplished the following;
- Identify Components subject to Plausible ARDMs:
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'(Oi (1) Identified potential ARDMs for Diesel Fuel Oil System components.
(2) Grouped Diesel Fuel Oil System components based on device type and design / operating environment attributes. Sub-component groups were also determined when necessary based on design / operating l environment attributes and supported component functions.
(3) Identified plausible ARDMs for each component or sub-component based on:
. Industry and plant information
. Material of construction
. Environmental service factors
. Intended functions
- Identified methods to manage aging effects for plausible ARDMs and assessed current plant programs to determine whether these aging effects are adequately managed. If current programs were not adequate to manage aging ;
effects, program modifications or new program requirements were identified.
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Diesel Fuel Oil System Aging Management Review Report o,q 4.2 Age-Related Degradation Mechanisms Diesel Fuel Oil System components were evaluated to identify ARDMs for which activities are required to ensure that age related degradation does not affect the component intended function (s). The identification of plausible ARDMs was completed in accordance with the process discussed below.
4.2.1 Potential ARDMs This step of the aging evaluation identifies ARDMs that are potentially detrimental to Diesel Fuel Oil system components. These potential ARDMs are determined on an equipment type (e.g., pipe, valve, instrument, element) basis. An ARDM is considered potential if the
- evaluation concludes that the ARDM could occur in generic applications of the equipment throughout the plant. The equipment types for which ARDMs were evaluated are listed below.
Pipe Valve
!A Accumulator (Tank)
'd A list of potential component ARDMs was developed for each of the equipment types. The list was developed through rechw ofindustry documents. The following are examples of source .ARDM information:
Draft NRC Regulatory Guide DG-1009 NUMARC Industry Reports NRC NPAR Reports EPRI Reports DOE Reports Site OER Database For each ARDM on the list, a determination was made whether it was applicable (i.e., potential) to the equipment type. The applicability of the ARDM was determined on the basis of a generic component of the equipment type in service in any system in the plant.
A summary of the potential ARDMs for each of the Diesel Fuel Oil system equipment types is provided in Table 4-1. The specific description of each potential ARDM is included on the Attachment 7s in Appendix A.
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p Diesel Fuel OilSystem Aging Management Review Report 4.2.2 Co:nponent Grouping Similar components are grouped together for evaluation efficiency. The age-related degradation evaluation results completed for a group are applicable to each of the individual components within the group.
Selection of grouping attributes was accomplished through consideration of the component characteristics that would most influence the age-related degradation that could occur. The scope of components within the aging management review for the Diesel Fuel Oil System is relatively small, and materials and environments were fairly consistent. This lead to grouping by device type and environment (buried and exposed). Within a given device type, sub-groups were developed to identify various component parts made of different materials and exposed to difi'erent environments.
Component grouping is shown on Attachment 3s in Appendix A. Sub-component breakdowns are shown on Attachment 4s in Appendix A.
4.2.3 Plausible ARDMs The list of potential ARDMs is utilized for a Diesel Fuel Oil System
(*y component-specific identification of plausible ARDMs. The plausibility determination is made through consideration of factors that influence component susceptibility to the ARDM. The ARDMs are assessed for plausibility on the basis of:
Material ofconstmetion Internal (process) environment External environment Operational conditions / effects Affect on the passive intended function The results of the component-specific ARDM plausibility evaluation are included in Attachment 5s and 6s in Appendix A. These results are summarized by component Device Type, in matrix form, in Table 4-2.
4.3 Methods to Manage the Effects of Aging The methods of managing the effects of plausible age related degradation mechanisms are determined in the final step of the aging management review
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process. These methods are compared to current plant programs and practices to j determine whether aging effects are adequately managed for the period of
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extended operation, or whether program revisions or new programs are required.
Additionally, plant modifications may be considered as a method to manage aging effects.
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, Diesel Fuel OilSystem Aging Management Review Report l lm <
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f l Applicable aging effects management methods are determined through l consideration of the specific plausible ARDM, component configuration (material l of construction, geometry, service conditions, etc.), and relative significance of ;
the aging effects for the period of extended operation.
Site programs and processes associated with the Diesel Fuel Oil system were reviewed to identify those that implemented the aging effects management
! methods determined to be necessary for the period of extended operation. These activities were reviewed with appropriate site program managers, system l engineers, and others to gain concurrence on the site programs and processes that will become commitments for plant license renewal. New programs were also identified.
i Site programs and new programs are discussed for Diesel Fuel Oil system components and plausible ARDMs on Attachment 2s,8s and 10s in Appendix A.
l Attachment 1 in Appendix A provides a summary of Diesel Fuel Oil System components (by device type) subject to aging management review, applicable passive intended function (s), plausible ARDMs, and aging effects management
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I (J programs.
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Diesel Fuel OilSystem Aging Management Review Report
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Table 4-1 j POTENTIAL Age-Related Degradation Mechanisms (ARDMs) l l
DFO Equipment Types Potential ARDMs Pipe Valve Accumu l Cavitation Corrosion x x Corrosion Fatigue x x Creep / Shrinkage Crevice Corrosion x x x Erosion Corrosion x x Fatigue x x x Fouling x x x Galvanic Corrosion x x x General Corrosion x x x liydrogen Damage x x x Intergranular Attack x x x frradiation Embrittlement MIC x x x Oxidation Particulate Wear Erosion x x ;
Pitting x x x
.] Radiation Damage x x x Rubber Degradation x x x l Saline Water Attack x Selective Leaching x x x
$ tress Corrosion x x x Cracking l Stress Relaxation x x x Thermal Damage x x x Thermal Embrittlement x x x Wear x x ,
l x - indicates that the ARDM is potentially detrimental to the equipment type
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,- Diesel Fuel Oil System Aging Management Review Report U i l
Table 4-2 PLAUSIBLE Age-Related Degradation Mechanisms DFO Device Types PLAUSIBLE ARDMs -HB CKV HV TK Cavitation Corrosion Corrosion Fatigue Crevice Corrosion x x x x Erosion Corrosion Fatigue Fouling x Galvanic Corrosion General Corrosion x x x x Hydrogen Damage Intergranular Attack MIC x x Particulate Wear Erosion Pitting x x x x Radiation Damage Rubber Degradation
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Saline Water Attack Selective Leaching Stress Corrosion Cracking Stress Relaxation Thermal Damage Thermal Embrittlement Wear ;
l x - indicates that the ARDM is plausible for component (s) within the Device Type O,,.
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l APPENDIX A l
l Diesel Fuel Oil System
! Aging Management Review LCM-16 Attachments Table of Contents Equipment Device Iype Type / Group Descriplian Attachment All All Component Aging Management 1 Review Summary All All Description of Programs Which Manage 2 the Effects of Aging All All Development of Aging 8 Management Alternatives
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All All Program / Activity (PA) Modifications 10 Pipe Potential ARDM List 7 .
l 023-11B-01 Component Grouping Summary 3 Sub-Comp /Sub-Group Identification 4 ARDM Matrix 5 Matrix Codes 6 l 023-HB-02 See 023-HB-01 3,4,5,6 Valve Potential ARDM List 7 023-CKV-01 See 023-HB-01 3,4,5,6 023-HV-01 See 023-HB-01 3,4,5,6 Accumu Potential ARDM List 7 023-TK-01 See 023-HB-01 3,4,5,6
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e-('- '1 Component Aging Manag .Jnt Review s > ,
M)M-16 Revision 4 Aging Management Review Summary (Revision 1) System Name & No.: Diesel Fuel Oil,023 Date: April 26,1996 Subcomponents/
Device Group Passive intended Grouping Subgroups Not Plausible Managed byExisting Modifications New Program Type ID Functions Attributes . Subject to Aging ARDMs Programs ID Needed. Needed Mgmt Review HB 023-HB-01 Maintain Press HB Pipe None Crevice Corrosion - MN-3-100 Bndry integrity. (above ground) Extemal surfaces QL-2-100 PEG-7 General Corrosion -
Extema! surfaces Pitting -
Extemal surfaces HB 023-HB-02 Maintain Press HB Pipe None Crevice Corrosion - Yes Bndry Integrity. (buried) Extemal surfaces DFO Buried Pipe General Corrosion - Inspection Program Extemal surfaces -Inspect buried Pitting - pipes to assure the Extemal surfaces pipe coating /
MIC - wrapping and Extemal surfaces cathodic protection system are adequately protecting the pipe from ertemal ARDMs.
CKV 023-CKV-01 Maintain Press Check Valves Disk and Seat Crevice Corrosion - MN-3-100 Bndry Integrity 023-CKV-01D ' Extemal surfaces QL-2-100 General Corrosion - PEG-7 Extemal surfaces Pitting -
Extemal surfaces I
onooc Attachment 1 Page 1 of 2
Component Aging Man nt Review MCM-16 Revision 4 Aging Management Review Summary (Revision 1) System Name & No.: Diesel Fuel Oil,023 Date: April 30,1996 Subcomponents/
Group Passive Intended . Grouping Subgroups Not Plausible Managed byExisting Modifications New Program Avice Type ID Functions - Attributes . Subject to Aging ARDMs- Programs ID Needed Needed Mgmt Review HV 023-HV-01 Maintain Press Hand Valves Disk and Seat Crevice Corroston - MN-3-100 Bndry Integrity. 023-HV-01D Extemal surfaces QL-2-100 ,
GeneralCorrosion - PEG-7 Extemal surfaces P tting - ,
Extemal surfaces i TK 023-TK-01 Maintain Press Tank Stairs and Crevice Corrosion - MN-3-100 Bndry Integrity. Platforms Extemat exposed surfaces QL-2-100 023-TK-01E GeneralCorrosion - PEG-7 i Extemal exposed surfaces Pitting -
Extemal exposed surfaces Crevice Corrosion - PEO-0-023-2-O-M, Yes CS intemal, particularfy CP-226 Tank intemal bottom surfaces CP-973 Inspection Program.
GeneralCorrosion -
CS intemal, particularly -Visually inspect the bottom surfaces tank intemal '
Pitting - surfaces and CS intemal, particularly measure tank l bottom surfaces bottom thickness to Fouling - determine presence CS intemal, particularly of and/or rate of bottom surfaces significant corrosion MIC -
CS intemal, particularfy bottom surfaces onooc Attachment 1 Page 2 of 2
V Component (.2g Managem:nt Review QCM-16 Revision 4 Description of Programs Which Manage the Effects of Aging (Revision 1) Date: April 30,1996 System Name and Number-Diesel Fuel Oil,023 Portions of System Program ID Managed By This Program ARDMs Managed by Description of Program
& Passive Intended This Program Function -
MN-3-100 Piping, Valves, and Tanks - Crevice Corrosion This program provides for assessment, prioritization and corrective action for Painting and Other extemal surfaces. General Corrosion degraded paint discovered under PEG-7 and/or OL-2-100.
Protective Coatings Passive Intended Function: Pitting Pressure Boundary Integrity QL-2-100 Piping, Valves, and Tanks - Crevice Corrosion This procedure provides requirements for initiating, reviewing and processing of issue Reporting and extemal surfaces. General Corrosion issue Reports (irs), and for resolution of issues. irs are generated to Assessment Passive Intended Function: Pitting document and resolve hardware and equipment deficiencies and Pressure Boundary integrity nonconformances. Corrective actions are implemented as required to resolve the issue.
PEG-7 Piping, Valves, and Tanks - Crevice Corrosion This guideline provides direction for performance of system walkdowns, the System Waikdowns extemal surfaces. General Corrosion reporting of walkdown results, and initiation of corrective action. Inspection Passive Intended Function: Pitting items typically related to aging management include housekeeping (e.g., paint)
Pressure Boundary Integrity and system stress or abuse (e.g., vibration, cavitation, corrrosion, leakage).
Conditions adverse to quality are documented on issue Reports in accordance with OL-2-100.
PEO-0-023-2-O-M Fuel Storage Tanks -intemal Crevice Corrosion This procedure periodically drains water which may collect at tank bottom. This Drain Water from 11 surfaces. General Corrosion activity in combination with chemistry testing provides for detection and control
& 21 FOST Passive Intended Function: Pitting of contributing environmental factors to the plausible ARDMs. If the amount of Pressure Boundary Integrity a ne w e e m u n me e estaMsM staMads, Foulin9 then corrective action is implemented as required.
MIC CP-226 Fuel Storage Tanks -intemal Crevice Corrosion This procedure controls fuel oil chemistry, including testing for presence of Oil Recieipt surfaces- General Corrosion biologics. The procedure establishes surveillance frequencies, fuel oil Inspection and Fuel Passive Intended Function: Pitting specifications (e.g., viscosity, % water, particulate contamination), and Oil Storage Tank Pressure Boundary Integrity rrective actions. Sampling and analysis are performed on new fuel prior to Foutin9 unloading from fuel trucks and on fuel in the storage tanks.
Surveillance MIC or2occ Attachment 2 Page 1 of 2
Component g M:nagement Review LCM-16 Revision 4 Description of Programs Which Manage the Effects of Aging (Revision 1) Date: April 30,1996 System Name and Number Diesel Fuel Oil,023 Portions of System Program ID Managed By This Program ARDMs Managed by Description of Program
& Passive Intended This Program Function CP-973 Fuel Storage Tanks -intemal Crevice Corrosion This procedure provides instructions to quantify insoluble particulat?
Determination of surfaces. General Corrosion contamination in diesel fuel. Chemistry testing in accordance with this Particulate Passive Intended Function: Pitting pr cedure and CP-226, in combination with draining of water in accordance Contamination in Pressure Boundary integriD E ** ** "* *" " "9 Foutin9 environmental factors to the plausible ARDMs. If fuel chemistry is found to not Diesel Fuel Oil MIC meet the established standards, then corrective action is implemented as required.
New Program: FuelStorage Tanks-intemal Crevice Corrosion The Tank Intemals Inspection Program is intended to provide the additional Tank Intemal surfaces. General Corrosion assurance needed to conclude that the effects of plausible aging are being Inspection Program Passive Intended Function: Pitting effectively managed for the period of extended operation. The program will Pressure Boundary Integrity us n e s e plaus s n ankinternalsudaces. He Foulin9 program should visually inspect intemal surfaces and measure tank bottom MIC thickness to determine presence of and/or rate of significant corrosion.
New Program: Extemal surfaces of buried Crevice Corrosion The DFO Buried Pipe Inspection Program is intended to provide the additional DFO Buried Pipe portions of pipes. General Corrosion assurance needed to conclude that the effects of plausible aging are being inspection Program Passive Intended Function: Pitting effectively managed for the period of extended operation. The program will Pressere Boundary Integriy f us n the effects of the plausible ARDMs on the pipe extemal surfaces. The MIC program should inspect the buried pipes to assure the pipe coating / wrapping and cathodic protection system are adequately protecting the pipe from extemal ARDMs.
or2 ooc Attachment 2 Page 2 of 2
(3 O Q LCM-16 V Component AgingY,dagem;nt Review Revision 4 Development of Aging Management Alternatives (Revisioni) Date: April 26,1996 SYSTEM NUMBER: 023 SYSTEM NAME: Diesel Fuel Oil COMPONENT ID: GROUP ID: 023-HB-01, 023-CKV-01 ,
023-HV-01, 023-TK-01 1 2 3 PLAUSIBLE ARDM FROM PLANT PROGRAM REASON FOR THE FORM OF AGING MANAGEMENT ATTACHMENT 5 ALTERNATNE CHOSEN' Crevice Corrosion, Periodically walkdown the DFO system to identify and The plausibility of the ARDMs is due to possible degradation of the extemal General Corrosion, correct areas where the extemal painted surfaces have protective paint coatings due to weather and ambient conditions which are Pitting Corrosion degraded to the extent that ARDMs are challenging the more severe than the moderate conditions found inside buildings. System
- Extemal surfaces pressure boundary function. Engineer Walkdown as directed by PEG-7 provides for engineer with not buried or " ownership" of the system to closely examine piping components. These located inside a MN-3-100, Protective Coating Program walkdowns will identify and document significant coating degradation and/or building. OL-2-100, issue Reporting presence of corrosion. PEG-7 requires initiation of an Issue Report in PEG-7, System Walkdowns accordance with QL-2-100 for conditions adverse to quality, including housekeeping deficiencies (e.g. degraded paint). Issue Reports identify needed corrective action, and require completion of the work prior to closure.
Procedure MN-3-100 identifies when and how to to correct the degraded condition.
This management approach provides reasonable assurance that significant degradation (i.e. degradation, which if not corrected, could eventually challenge system pressure boundary) will be identified and resolved.
oresosooc Attachment 8 Page 1 of 3
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O Component Agingbiagem nt R:: view sLCM-16 Attachm:nt 8 Revision 4 Development of Aging Management AltemativeS (Revision 1) Date: April 12,1996 ,
SYSTEM NUMBER: 023 SYSTEM NAME: Diesel Fuel Oil COMPONENTID: GROUP ID: 023-HB-02 L
1' 2' 3' PLAUSlBLE ARDM FROM PLANT PROGRAM REASON FOR THE FORM OF AGING MANAGEMENT -
ATTACHMENT 5 ' ALTERNATIVE CHOSEN <
Crevice Corrosion Inspect a representative sample of the buried pipes for The DFO buried pipes are protected by a coating / wrapping and an impressed i General Corrosion signs of the plausible ARDMs prior to the period of cathodic protection system. However, holidays or disbonded areas of the t Pitting Corrosion extended operation. wrapping can lead to crevice corrosion, general corrosion, pitting and MIC MIC given a condusive environment. Since the pipe is buried (normally not !
- Extemal surfaces DFO Buried Pipe Inspection Program (New Program) inspectable) and the environmental conditions may vary, a representative buried sample of the buried piping will be inspected to provide assurance that the !
coating? wrapping and cathodic protection system are adequately protecting the pipe from extemal ARDMs. This management approach provides for .
detection by inspechon, correchon as needed, and identification of needed -
additional or future inspections omen ooc Attachment 8 Page 2 of 3
Component Aging un?agement Review LCM-16 Attachment 8 Revision 4 Development of Aging Management Alternatives (Revision 1) Date: April 12, .1996 SYSTEM NUMBER: 023 SYSTEM NAME: Diesel Fuel Oil COMPONENT ID: GROUP ID: 023-TK-01 (1 . -2 ' 3?
PLAUSIBLE ARDM - .
'FROM ? PLANT PROGRAMi i REASON FOR THE FORM OF AGW8G MANAGERN!NT ATTACHMENT 5= ~
> ALTERNATIVE CHOSEN Crevice Corrosion - Periodically drain water from the FOSTs. This aging management approach provides for removal and control of a contnbutmg General Corrosion environmental factor to the plausible ARDMs. Drammg of any water which may Pitting PEO-0-023-2-0-M collect at the tank bottom (in the sump) will mmmuze corrosion of the tank bottom due to plausible ARDMs. There are two pnmary benefits of removmg water; the first Fouling is to minimize the possibility of MIC, as nucrobes requwe water to survive and MIC multiply, and second, that typical corrosive affects of water on carbon steel will be minimized. If more than one gallon of water is dramed, the operator is required to notify the shift supervisor, and the situabon will be invesbgated to determme and correct the source of the water.
CS intemal, particularly Maintain fuel oil within established Wi- W-is to minimize This aging management approach provides for detechon and control of contnbutmg bottom surfaces possibility of microbe growth, buildup of sludge, and corrosive environmental factors to the plausible ARDMs. The procedures assure new and affects of plausible ARDMs. existing fuel oil chenustry meets established standards (includmg testing for biologics and water), thereby assunng the envronment is not conducive to the plausible CP-226. Oil Receipt inspection and FOST SurveQlance A s. to not M N N N h corrective achon implemented as required CP-973, Determmabon of Particulate Contammation in Diesel Fuel Oil Inspect the intemal surfaces of the tank and measure tank Drammg water and chemisty teshng/ control of fuel oil provides a high degree of bottom thickness to determme presence of and/or rate of confidence that the affects of the plausible ARDMs will be nunwnized. However, the significant corrosion intemal surfaces of the tank are not accessible dunng system walkdowns; therefore, an intemal inspechon will provide addebonal assurance that existing procedures and Tank Intemal Inspection Program (New Program) controls are adequately inviacnng tank intemals if degradation mechanisms are noted then correchve achons can be implemented Future inspechons may be scheduled if appropriate oremn ooc Attachment 8 Page 3 of 3
y/ Component Aging ement Review ( LCM-16 Revision 4 0 Program / Activity (PA) Modifications (Revision 1) Date: April 30,1996 SYSTEM NUMBER: 023 SYSTEM NAME: Diesel Fuel Oil PA/ TASK ID and PRESENT DESCRIPTION 'NEW/ REVISED AFFECTED PORTION CORRECTIVE ACTION / RECOMMENDATION Tank IntemalInspection N/A The Tank Intemals inspection Program shall visually inspect intemal Program surfaces and measure tank bottom thickness to determine presence of and/or rate of significant corrosion. The program shall provide Tank, internal Surfaces appropriate inspection techniques, acceptance criteria, guidance for establishing additional and/or future inspections (if needed), and requirements for reporting of results and corrective actions. The inspection shall be coordinated with the Environmental Affairs Section.
DFO Buried Pipe N/A The DFO Buried Pipe Inspection Program shallinspect the buried inspection Program pipes to assure the pipe coating / wrapping and cathodic protection system are adequately protecting the pipe from extemal ARDMs. The Buried Pipes, Extemal program shall provide requirements for identification of representative surfaces pipes for inspections, appropriate inspection techniques, acceptance criteria, guidance for establishing additional and/or future inspections (if needed), and requirements for reporting of results and corrective actions.
onoooc Attachment 10 Page 1 of 1
l Compon:nt Aging Man:gsment R:vi:w LCM-16 Revision 4 SYSTEM: 023, Diesel Fuel Oil p
V EQUIPMENTTYPE: PIPE Potential ARDM List (Revision 1)
Date: March 20,1996 4
ARDM POTENTIAL DESCRIPTION / JUSTIFICATION SOURCE I i
Cavitation Yes Localtzed material erosion caused by formation and collapse of (?]
Erosion vapor bubbles in close proximity to material surface. Requires fluid
, (liquid) flow and pressure variations which temporarily drop the liquid pressure below the corresponding vapor pressure. Most matenals are susceptible to varying degrees depending upon the severity of the environmental factors.
Corrosion Yes Plant equipment operating in a corrosive environment subjected to [7]
Fatigue cyclic (fatigue) loading may initiate cracks and/or fait sooner than expected tased on analysis of the corrosion and fatigue loadings applied separately. Fatigue-crack initiation and growth usually l follows 3 transgranular path, although there are some cases !
where intergranular cracking has been observed. In some cases, crack initiation occurs by fatigue and is subsequently dominated by corrosion advance. In other cases, a corrosion mechanism !
(SCC) can be responsible for crack formation below the fatigue l threshold, and the fatigue mechanism can accelerate the crack )
propagation. Corrosion-fatigue is a potentially active mechanism j in both stainless steels as well as carbon and low alloy steels. '
Creep / No Not applicable to Equipment Type. The phenomenon results in [2]
Shrinkage dimensional changes in metals at high temperatures and in concrete subject to long term dehydration. This ARDM is not applicable to this equipment type since proper piping system design prevents this ARDM from occurring (i.e., piping design standards adequately address this ARDM).
Crevice Yes Cravice corrosion is intense, localized corrosion within crevices or [6]
Corrosion shielded areas. It is associated with a small volume of stagnant [7] l solutis.n caused by holes, gasket surfaces, lap joints, crevices [12]
under bolt heads, surface deposits, designed crevices for attaching thermal sleeves to safe-ends, and integral weld backing rings or back-up bars. The crevice must be wide enough to permit liquid entry and narrow enough to maintain stagnant conditions, typically a few thousandths of an inch or ir as. Crevice corrosion is closely related to pitting corrosion and can initiate pits in many cases as well as leading to stress corrosion cracking. In an oxidizing environment, a crevice can set up a differential aeration cell to concentrate an acid solution within the crevice. Even in a reducing environment, attemate wetting and drying can concentrate aggressive ionic species to cause pitting, crevice corrosion, intergranular attack, or stress corrosion cracking.
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Compon:nt Aging Manrgam:nt R vi w LCM 16 l Revision 4 1 SYSTEM: 023, Diesel Fuel Oil (x l Potential ARDM List (Revision 1) l
'u) EQUIPMENT TYPE: PIPE Date: March 20,1996 i l
Erosion Yes increased rate of attack on a metal because of the relative [5]
Corrosion movement between a corrosive fluid and the metal surface. [6] j Mechanical wear or abrasion can be involved, characterized by [7]
grooves, gullies, waves, holes and valleys on the metal surface. j Erosion is a mechanical action of a fluid and/or particulate matter I on a metal surface, without the influence of corrosion. Erosion corrosion failures can occur in a relatively short time and are sometimes unexpected, since corrosion tests are usually run under static conditions. All equipment exposed to moving fluids is vulnerable; in particular, piping (bends, tees, etc.), Valves, pumps, propellers and impellers, heat exchanger tubing, turbine blades and wear plates are components which have experienced erosion corrosion. This is a serious problem in steam piping, heater drain piping, reheaters, and moisture separators due to high velocity particle impingement. Erosion corrosion has occurred in high and l low pressure preheater tubes, low pressure preheaters, evaporators and feedwater heaters. Inlet tube corrosion occurs in
, heat exchangers, due to the turbulence of flow from the exchanger ;
head into the smaller tubes, within the first few inches of the tube. ;
Such corrosion has been especially evident in condenser tubes and feedwater heaters. The occurrence of erosion corrosion is highly dependent upon material of construction and the fluid flow
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lV conditions. Carbon or low alloy steels are particularly susceptible when in contact with high velocity water (single or two phase) with turbulent flow, low oxygen and fluid pH < 9.3. Maximum erosion l
corrosion rates are expected in carbon steel at 130-140*C (single phase) and 180*C (two phase).
Fatigue Yes Fatigue damage results from progressive, localized structural [6]
change in materials subjected to fluctuating stresses and strains. [7]
Associated failures may occur at either high or low cycles in [2]
response to varinus kinds of loads (e.g., Mechanical or vibrational loads, thermal cycles, or pressure cycles). Fatigue cracks initiate and propagate in regions of stress concentration that intensify strain. The fatigue life of a component is a function of several variables such as stress level, stress state, cyclic wave form, fatigue environment, and the metallurgical condition of the material. Failure occurs when the endurance limit number of cycles (for a given load amplitude) is exceeded. All materials are susceptible (with varying endurance limits) when subjected to cyclic loading. Vibration loads have also been the cause of recurring weld failures by the fatigue of small socket welds.
Certain piping locations, such as charging lines, have been found to experience vibration conditions. In some cases these failures in pipe have been due to inadequately supported pipe or obturator induced vibratory loads.
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Compon2nt Aging Managsmant Rsvisw LCM-16 Revision 4 SYSTEM: 023, Diesel Fuel Oil Potential ARDM List (Revision 1)
EQUIPMENT TYPE: PIPE Date: March 20,1996 l
Fouling Yes Unavoidable introduction of foreign substances that interact with [9]
and/or collect within system and components. Caused by failure [10]
or degradation of upstream removal process equipment, long term [11]
buildup, low flow, stagnant flow, infrequent operation, and/or contaminated inlet flow. Fouling rafers to all deposits on system surfaces that increase resistance to fluid flow and/or heat transfer.
Sources of fouling include the following: (1) organic films of micro-organisms and their products (microbial fouling) (2) . l deposits of macro-organisms such as mussels (macrobial fouling)
(3) inorganic deposits, including scales, silt, corrosion products ;
and detritus. Scales result when solubility limits for a given species j are exceeded. Deposits result when coolant-borne particles drop l onto surfaces due to hydraulic factors. The deposits result in reduced flow of cooling water, reduced heat transfer, and increased corrosion. Sediment deposits promote concentration cell corrosion and growth of sulfur-reducing bacteria. The bacteria can cause severe pitting after one month of service. Piping systems designed for 30 years have had their projected life reduced to five years due to under-sediment corrosion.
Galvanic Yes Accelerated corrosion caused by dissimilar metals in contact in a [12]
e Corrosion conductive solution. Requires two dissimilar metals in physical or i electrical contact, developed potential (material dependent), and conducting solution, General Yes Thinning (wastage) of a metal by chemical attack (dissolution) at [7]
Corrosion the surface of the metal by an aggressive environment. The [8]
consequences of the damage are loss of load carrying [2]
cross-sectional area. General corrosion requires an aggressive [16]
environment and materials susceptible to that environment. An important concern for PWRs is boric acid attack of carbon steels.
Borated water has been observed to leak from piping, valves, storage tanks, etc., and fall on other carbon steel components and attack the component from the outside. Wastage is not a concem for austenitic stainless steel alloys.
Hydrogen Yes Two forms of hydrogen attack relevant to light water reactor [6]
Damage materials and conditions are hydrogen blistering and hydrogen [7]
embrittlement. Both produce mechanical damage in the affected component. In each case, atomic hydrogen enters the metal, either as a result of a corrosion reaction at the surface or by cathodic polarization which results in the evolution of hydrogen gas. In blistering, interstitial atomic hydrogen is combined into molecular hydrogen within the metal, causing high pressure and local damage in the form of " blistered" regions of the metal surface. Hydrogen embrittlement affects ferritic and martensitic iron-based alloys, and results in low ductility intergranular cracking (similar to stress corrosion cracking).
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Compon nt Aging Managem:nt Rcvi:w LCM-16 Revision 4 SYSTEM: 023, Diesel Fuel Oil I lf]
'G' Potential ARDM List (Revision 1)
EQUIPMENT TYPE: PIPE Date: March 20,1996 Hydrogen Yes The phenomenon of hydrogen cracking is usually manifested as Damage (Cont'd) delayed cracking, at or near room temperature, after stress is (Continued) applied. A certain critical stress, which may take the form of weld residual stress, is required to cause cracking. Notches i concentrate such stresses and tend to shorten the delay time for cracking. Cracking of welds due to hydrogen embrittlement and hydrogen-induced cracking is a common concern. This cracking is more of a problem in higher strength steels (yield strength >120 ksi). Ferritic and martensitic stainless steels, carbon steels, and j other high strength alloys are susceptible. Austenitic stainless -
I steels are relatively immune but could experience damage at sufficiently high hydrogen levels. Catalyst poisons or pickling i inhibitors, as well as lubricants or other material containing P, S or As compounds (e.g., molybdenum disulfide lubricants) favor the entrance of atomic hydrogen into the metallattice and should therefore be limited.
Intergranular Yes Intergranular Attack (IGA) is very similar to intergranular stress [6]
Attack corrosion cracking (IGSCC) except that stress is not required for [7]
IGA. IGA is localized corrosion at or adjacent to grain boundaries, [2]
with relatively little corrosion of the material grains. It is caused by [12] )
impurities in the grain boundaries, or the enrichment or depletion l
/G of allnying elements at grain boundaries, such as the depletion of b chromium at austenitic stainless steel grain boundaries. A
" sensitized" microstructure causes susceptibility to IGA. When austenitic stainless steels are heated into or slow cooled through ,
the temperature range of approximately 750 to 1500*F, chromium l carbides can be formed, thus depleting the grain boundaries of chromium and decreasing their corrosion resistance. High j chromium ferritic stainless steels, such as Type 430, also I experience susceptibility to IGA. Nickel alioys such as alloy 600 experience IGA in the presence of certain sulfur environments at high temperatures (by forming low melting sulfur compounds at grain boundaries) or when austenitic stainless steel weld filler metal is inadvertently used on Ni-Cr-Fe alloys. Susceptibility to intergranular attack (sensitization) usually develops during thermal processing such as welding or heat treatments.
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Compon:nt Aging Man;g:m:nt Ravi:w LCM-16 Revision 4 SYSTEM: 023, Diesel Fuel Oil Po ential ARDM List (Revision 1)
(.) EQUIPMENT TYPE: PIPE Date: March 20,1996 Irradiation No Not applicable to Equipment Type. The ARDM results in a [6]
Embrittlement decrease in steel fracture toughness due to long-term exposure to [7]
a fast flux of neutrons. High neutron fluence levels can lead to embrittlement of the reactor pressure vessel core beltline, as well as certain reactor internals and core support structures. Control of material composition to low levels of Cu and Ni(and perhaps P and Si, to some extent) is beneficial in some cases, such as the reactor pressure vessel ferritic steel. Core suppo.t structure peak fluences as high as 1.0E+21 (e > 1mev) are reached in some cases and can embrittle the austenitic stainless steels and alloy 600 materialin these components. PWRs experience fluences of between 9.0E+18 and about 4.0E+19 (e > 1mev) at the vessel beltline inside surface. Safe-ends and piping outside the vessel are not expected to experience irradiation significant enough to cause problems. However, the embrittlement effects due to low flux irradiation are not well understood. This ARDM is not applicable to tMr equipment type since piping components are located outside the reactor building, where the neutron flux is not high enough to cause this ARDM to occur.
MIC Yes Accelerated corrosion of materials resulting from surface [6]
microbiological activity. Sulfate reducing bacteria, sulfur oxidizers, [7]
and iron oxidizing bacteria are most commonly associated with [2]
v corrosion effects. Most often results in pitting followed by [14]
excessive deposition of corrosion products. Stagnant or low flow areas are most susceptible. Any system that uses untreated water, or is buried, is particularly susceptible. Several forms of fungi and other microorganisms can also survive and multiply in hydrocarbon fuels.
Consequences range from leakage to excessive differential pressure and flow blockage. Essentially all systems and most commonly-used materials are susceptible. Temperatures from about 50*F to 120*F are most conducive to MIC. Experience in virtually all large industries is common. Nuclear experience is relatively new, but also widespread. MIC is generally observed in service water applications utilizing raw untreated water.
Sedimentation aggravates the problem.
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Compon:nt Aging M:n g m:nt R:vi:w LCM-16 Revision 4
, SYSTEM: 023, Diesel Fuel Oil
( ) Potential ARDM List (Revision 1) J EQUIPMENT TYPE: PIPE Date: March 20,1996 '
MIC Yes Hydrocarbon fuel fungi grow into long strings, and form larger (Continued) (Cont'd) mats or globules. They may grow though out the fuel, or at the ,
interface area between the fuel and water bottom layer. As the I fuel is agitated, for instance during filling, fungal growth is distributed throughout the fuel system. The fungus organisms need only trace amounts of minerals and water to sustain their growth, and use the fuel as their main energy / food source. Their growth chemically alters the fuel by producing sludge, acids, and other products of metabolism. When they adhere to the fuel containing surfaces the water and waste products lead to corrosion. Rubber and other tank linings, hoses and coatings may also be consumed due to their energy and trace mineral composition.
Oxidation No Not applicable to Equipment Type. The ARDM results from a [7]
chemical reaction at the surface of a material when subjocted to [12) an oxidizing environment. Oxidation occurs at any temperature.
Electrical components experience degradation related to oxidation and are considered separately. Oxidation generally is not considered a degradation mechanism in metals of fluid systems in mild environments since this mechanism serves to protect materials by formation of a passive layer. Other corrosion
- mechanisms (e.g. Corrosion fatigue, crevice corrosion, erosion C'} corrosion, general corrosion and pitting) can result from oxidation / reduction reactions under specific aggressive mechanical and chemical environment and are addressed separately. It could be considered a degradation mechanism at high teraperatures, where a more rapid reaction between metal and oxygen is likely to occur. These temperatures do not occur in power plant applications under evaluation. Therefore, oxidation is not considered a potential ARDM for piping.
Particulate Yes The loss of material caused by mechanical abrasion due to [7]
Wear Erosion relative motion between solution and material surface. Requires high velocity fluid, entrained particles, turbulent flow regions, flow direction change, and/or impingement. Most materials are susceptible to varying degrees depending upon the severity of the environmental factors.
l (Gl v
l Attachment 7 Page 6 of 11
Compon:nt Aging Manrgem::nt Rsvi;w LCM-16 Revision 4 023, Diesel Fuel Oil b.) SYSTEM: Potential ARDM List (Revision 1)
C' EQUlFMENT TYPE: PIPE Date: March 20,1996 Pitting Yes A form of locahzed attack with greater corrosion rates at some [6]
locations than at others. Pitting can be very insidious and [7]
destructive, with sudden failures in high pressure applications [2]
(especially in tubes) occuving by perforation. This form of [12]
corrosion essentially produces " holes" of varying depth to diameter ratios in the steel. These pits are, in many cases, filled with oxide debris, especially for ferritic materials such as carbon steel. Deep pitting is more common with passive metals, such as austenitic stainless steels, than with non- passive metals. Pits are generally elongated in the direction of gravity. In many cases, erosion corrosion, fretting corrocion, and crevice corrosion can also lead to pitting. Corrosion pitting is an anodic reaction which is an autocatalytic process. That is, the corrosion process w'hin a pit produces conditions which stimulate the continuing act vity of the pit. High concentrations of impurity anions such as chl> rides and sulfates tend to concentrate in the oxygen- depleted pi region, giving rise to a potentially concentrated aggressive sol Jtion in this zone. Pitting has been found en the outside diameter cf tubes where sludge or tube scale was present. It can also occur at locations of relatively stagnant coolant or water, such as in carbon steel pipes for service water lines, and at crevices in stainless
,_, steel, such as at the stainless steel cladding between reactor pressure vessel closure flanges. Pitting can become passive in (V) some metals such as aluminum.
Radiation Yes Non-metallics are susceptible to degradation caused by gamma [4]
Damage radiation.
)
I Rubber Yes Rubber can be used in specific applications of this device type. [3]
Degradation Long term exposure of rubber to water will result in water absorption and swelling, blistering, hardening, and eventual cracking. When utilized as a protective lining, moisture I permeation of the rubber produces blisters beneath the lining and initiates corrosion of the lined surface.
l Sahne Water Yes Saline Water Attack has resulted in the degradation of reinforced [2]
Attack concrete structures. The degradation mechanism involves water seepage into the concrete resulting in a high chloride environment for the reinforcing bars. The reinforcing bars corrode resulting in i expansion that leads to cracking and spalling of the concrete. Of ;
particular concem for structures that are inaccessible for routine I inspection, and piping or other fluid components embedded in concrete.
l l
l l f3 fU Attachment 7 Page 7 of 11
Compon:nt Aging Min:g;m:nt R3vi;w LCM-16 Revision 4 SYSTEM: 023, Diesel Fuel Oil
, ,)
' (V EQUIPMENT TYPE: PIPE Potential ARDM List (Revision 1)
Date: March 20.1996 Selective Yes The removal of one element from a solid alloy by corrosion [12]
Leaching processes. The most common example is the selective removal of [13]
zinc in brass alloys (dezincification). Similar processes occur in other alloy systems in which aluminum, iron, cobalt, chromium, and other elements are removed. There are two types, layer-type and plug-type. Layer-type is a uniform attack whereas plug-type is extremely localized leading to pitting. Overall dimensions do not change appreciably. If a piece of equipment is covered by debris or surface deposits and/or not inspected closely, sudden unexpected failure may occur in high pressure applications due to the poor strength of the remaining material. Requires susceptible materials and corrosive environment. Materials particularly susceptible include zinc, aluminum, carbon and nickel.
Environmental conditions include high temperature, stagnant aqueous solution, and porous inorganic scale. Acidic solutions and oxygen aggravate the mechanism.
I Stress Yes Selective corrosive attack along or across material grain [6] l Corrosion boundaries. Four particular mechanisms are known to exist: (1) [7]
Cracking Intergranular (IGSCC), between the material grain boundaries. (2) [2]
Transgranular (TGSCC), across the material grains along certain [12] l g crystallographic planes. (3) Irradiation Assisted (IASCC), between [13] l the material grains after an incubation neutron dose which
- V) sensitizes the material. (4) Interdendritic (IDSCC), between the (15]
[16]
I dendrite interfaces. SCC requires applied or residual tensile stress, susceptible materials (such as austenitic stainless steels, alloy 600, alloy x-750, SAE 4340, and ASTM A289), and oxygen and/or ionic species (e.g., Chlorides / sulfates).
Common sources of residual stress include thermal processing and stress risers created during surface finishing, fabrication, or assembly. The heat input during welding can result in a localized sensitized region which is susceptible to SCC. IGSCC is a concern in stainless steel piping depending on material condition and process fluid chemistry and also is a potential concem in valve internals (PH steel). SCC of low alloy steel and carbon steel is not considered a credible aging mechanism for typical conditions encountered in a nuclear power plant. TGSCC may be a concern in low alloy and stainless steel if aggressive chemical species (caustics, halogens, sulfates, especially if coupled with the presence of oxygen) are present. IASCC is a potential concern only for reactor vessel intemals and other stainless steel components, such as control rods, which are subject to very high neutron fluence levels. A fast neutron incubation fluence of at least l 1.0E+20 is generally required to sensitize the material.
,a
, Attachment 7
! Page 8 of 11
- Component Aging Management Review LCM-16 l' Revision 4 SYSTEM
- 023, Diesel Fuel Oil l Potential ARDM List (Revision 1)
EQUIPMENT TYPE: PIPE Date: March 20,1996 Stress Yes IDSCC is a potential concem in stainless steel weld metal deposits '
Corrosion (Cont'd) based on microstructure and delta ferrite content. This mechanism ;
l Cracking is inactive in carbon and low alloy steel. Ammonia grooving in l (Continued) brass components can occur when the concentration of ammonia l ls greater than a few ppm. It is found most often in feedwater heaters that contain admiralty brass tubes and where morpholine, which breaks down into ammonia, is used to increase the pH of the condensate.
l Cathodic protection of buried pipes is provided to prevent SCC; however SCC can occur at areas where the coating is disbonded.
The potential voltage of the pipe can result in the accumulation of alkali at the pipe surface leading to SCC. The other factorr which which have a strong influence on whether SCC will occur at these locations include the chemical composition of the envirionment, j the stress level (hoop stress), the nature of the metal (lower yield strength is less likely to develop SCC), the electrode potential of i the metal, and the temperature (lower is less likely to develop l SCC). A proven remedial measure is careful and complete l protection of the pipe surface with an organic coating, which is often supplemented with a polyethylene wrap or epoxy resin coating.
1 L/ Stress Yes Stress Relaxation occurs under conditions of constant strain [7]
Relaxation where part of the elastic strain is replaced with plastic strain. A material loaded to an initial stress may experience a reduction in stress over time at high temperatures (>700*F for typical l materials). Bolted connections are most vulnerable. Relaxation of I
stress on packing due to stretching of gland follower studs under elevated temperatures may cause packing leakage.
! Irradiation fluence levels greater than 6.0E19 increase relaxation l
in austenitic and nickel alloy steels. I l
Thermal Yes Non-metallics are particularly susceptible with material dependent [7]
Damage temperature limits. [2]
l Thermal Yes Loss of material fracture toughness caused by thermally induced [7]
, Embrittlement changes in the format:on and distribution of alloying constituents.
Requires high temperature 500*F to 700*F for metallic
! components. Ferrite containing stainless steels are susceptible as are materials with grain bourrdary segregation of impurities.
4 Attachment 7 Page 9 of 11
Compon nt Aging Manag:m:nt Rcvi:w LCM-16 Revision 4 023, Diesel Fuel Oil f] SYSTEM:
V EQUIPMENT TYPE: PlPE Potential ARDM List (Revision 1)
Date: March 20,1996 Wear Yes Wear results from relative motion between two surfaces (adhesive [1]
wear), from the influence of hard, abrasive particles (abrasive wear - see particulate erosion) or fluid stream (erosion), and from small, vibratory or sliding motions under the influence of a corrosive environment (fretting). In addition to materialloss from the above wear mechanisms, impeded relative motion between two surfaces hcid in intimate contact for extended periods may result from galling /self-welding. Motions may be linear, circular, or vibratory in inert or corrosive environments. The most common result of wear is damage to one or both surfaces involved in the contact. Wear most typically occurs in components which l experience considerable relative motion such as valves and pumps, in components which are held under high loads with no 1 motion for long periods (valves, flanges), or in clamped joints where relative motion is not intended but occurs due to a loss of clamping force (e.g., Tubes in supports, valve stems in seats, l springs against tubes). Wear may proceed at an ever-increasing I rate as worn surfaces moving past one another will often do so l with much higher contact stresses than the surfaces of the original geometry. Fretting is a wear phenomenon that occurs between tight-fitting surfaces subjected to a cyclic, relative motion of extremely small amplitude. Fretting is frequently accompanied by j
) corrosion. Common sites for fretting are in joints that are bolted, 1 d keyed, pinned, press fit or riveted; in oscillating bearings, couplings, spindles, and seals; in press fits on shafts; and in universaljoints. Under fretting conditions, fatigue cracks may be initiated at stresses well below the endurance limit of nonfretted specimens.
1 a
O Attachment 7 Page 10 of 11
Compon:nt Aging Man:g: mint R:vi;w LCM-16 Revision 4 SYSTEM: 023, Diesel Fuel Oil Potential ARDM List (Revision 1) j U EQUIPMENT TYPE: PIPE Date: March 20,1996 Attachment 7 Reference List Source Title
[1] ASME Wear Control Handbook, Peterson and Winer,1980
[2] Standard Format and Content of Technical Information for Applications to Renew Nuclear Power Plant Operating Licenses, Draft NRC Regulatory Guide No. DG-1009, December 1990
[3] Service (Salt) Water System Life Cycle Management Evaluation, EPRI Report TR-102204, April 1993
[4] Radiation Effects on Organic Materials in Nuclear Plants, EPRI Report No. NP-2129, )
November 1981
)
[5] Erosion / Corrosion in Nuclear Plant Steam Piping, EPRI Report No. NP-3944,1985
[6] Component Life Estimation: LWR Structural Materials Degradation Mechanisms, EPRI j Report No. NP-5461,1987
[7] Environmental Effects on Components: Commentary for ASME Section ill, EPRI Report ,
No. NP-5775, April 1988 I
[8] Boric Acid Corrosion of Carbon and Low Alloy Steel Pressure Boundary Materials, EPRI Report No. NP-5985,1988
[9] Nuclear Plant Service Water System Aging Degradation Assessment, NUREG/CR-5379, Volume 1 and 2, June 1989 and October 1992 y [10] Aging Assessment of instrument Air Systems, NUREG/CR-5419, January 1990
[11] insights Gained from Aging Research, NUREG/CR-5643, March 1992 1
[12] Corrosion Engineering, Fontana and Greene,1978 i
[13] Corrosion and Corrosion Control, An Introduction to Corrosion. Science and Engineering, Uhlig, Third Edition,1985 1
[14] BOlBOR JF Fuel Fungicide Service Bulletin, U.S. Borax, No. 279
[15] NACE-5, Stress Corrosion Cracking and Hydrogen Embrittlement of iron Base Alloys, June l 12-16,1973, pages 135-139 )
[16] A Survey of the Literature on Low-Alloy Steel Fastener Corrosion in PWR Power Plants, I EPRI Report No. NP-3784,1984 j i
l l
l A
\.
1 Attachment 7 Page 11 of 11
t Component Aging Management Review LCM-16 Revision 4 l
' Attachment 3 Component Grouping Summary Sheet (Revision 1) Date: 03/19/96 :
SYSTEM: Diesel Fuel Oil (023)
GROUP ID NUMBER: 023-HB-01 f GROUP ATTRIBUTES:
- 1. Device Type: Pipe Line with Piping Code HB
- 2. Vendor.
- 3. Model Number.
- 4. Material:
! S. Internal Environment: .
- 6. External Environment: Above ground (not buried)
- 7. Function: Maintain System Pressure Boundary Integrity )
- 8. Name Plate Data:
i- PARAMETER VALUE .
! I l I i
1 LIST OF GROUPED COMPONENTS (EQUIPMENT ID):
'V
( 0-HBS-1001 0-HB5-1002 DFO System Piping' DFO System Piping
- 0-HB5-1003 DFO System Piping
- 0-HB5-1004 DFO System Piping
- 0-HBS-1005 DFO System Piping
- 0-HB5-1006 DFO System Piping
- 0-HB5-1007 DFO System Piping 0-HBS-1010 DFO System Piping
- 0-HB5-1013 DFO System Piping ;
0-HBS-1017 DFO System Piping 0-HB5-1018 DFO System Piping 0-HB5-1019 DFO System Piping
- 0-HB5-1040 DFO System Piping
- 0-HBS-1056 DFO System Piping" 0-HB5-2002 DFO System Piping
- 0-HB5-2004 DFO System Piping
- 0-HB5-2006 DFO System Piping * ***
0-HBS-2013 DFO System Piping 0-HB5-2040 DFO System Piping *
- Component has portions which are both above ground and buried. This Group addresses only the above ground portion.
- Only the portion up to valves OHV0C-DFO-037,051 and 151 is within the scope of this system evaluation.
l *" Includes short branch up to OCKVDFO-144.
I Attachment 3
! Page 1 of 1 l
l
O Component Aging Matagement Review O O LCM-16 Revision 4 Date: 3/27/96 Sub-Component /Sub-Group identification (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL EQUIPMENT ID: PIPE GROUP ID: 023-HB-01 DEVICE TYPE NAME: PIPE LINE WITH PIPING CODE OF "HB" Subito Sub-Component / Name Manufacturer Material Model Number Passive intended Function (s) AMR Sub-Group ID (Replacement Prgm) (Source) (Source) (Source) (Source) (Y or N) 023-HB-01A PIPE N/A A-106 GR B, SMLS CARBON N/A MAINTAIN PRESSURE BOUNDARY INTEGRITY . Y (NONE) (N/A) STEEL (N/A) (CLSR)
(92767) 023-HB-01B FITTINGS N/A FORGED: A-181 N/A MAINTAIN PRESSURE BOUNDARY INTEGRITY Y (NONE) (N/A) (92767) (N/A) (CLSR) .
023-HB-01C FLANGES N/A FORGED. A-181 N/A MA:NTAIN PRESSURE BOUNDARY INTEGRITY Y (NONE) (N/A) (92767) (N/A) (CLSR)
N/A BOLTS: A-193 GR B7 N/A I 023-HB-01D BOLTS MAINTAIN PRESSURE BOUNDARY INTEGRITY Y (NONE) (N/A) (92767) (N/A) (CLSR) l 023-HB-01E NUTS N/A NUTS: A-194 GR 2H N/A MAINTAIN PRESSURE BOUNDARY INTEGRITY Y (NONE) (N/A) (92767) (N/A) (CLSR) 023-HB-01F WELDS N/A CS WELD MATERIAL N/A. MAINTAIN PRESSURE BOUNDARY INTEGRITY Y (NONE) (N/A) (TYPICAL) (N/A) (CLSR) r i
r Attachrnent 4 Page 1 of 1 ,
Component Aging Management Review LCM-16 lbQ Revision 4 ARDM Matrix (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: Diesel Fuel Oil EQUIPMENT TYPE: PIPE DEVICE TYPE: HB GROUP ID: 023-HB-01 Date: March 27,1996 l
023-H B- 023-HB- 023-H B- 023-HB- 023-HB- 023-H B-ARDMs 01A 018 01C 01D 01E 01F Pipe Fittings Flanges Bolts Nuts Welds l Cavitation Erosion 02 02 02 19 19 02
- Corrosion Fatigue 12 12 12 12 12 12
! Crevice Corrosion A A A A A A
! Erosion Corrosion 02 02 02 19 19 02 Fatigue 12 12 12 12 12 12 Fouling 06 06 06 19 19 06 Galvanic Corrosion 07 07 07 07 07 07 General Corrosion A A A 01.3 A A j Hydrogen Damage 03 03 03 03 03 03 !
Intergranular Attack 01.1 01.1 01.1 01.3 01.1 01.1 l l MIC 08 08 08 08 08 08 1 Particulate Wear 05 05 05 19 19 05 l p) l '
Erosion l Pitting A A A A A A Radiation Damage 01.1 01.1 01.1 01.3 01.1 01.1 Rubber Degradation 01.1 01.1 01.1 01.3 01.1 01.1 1 Saline Water Attack 18 18 18 18 18 18 I Selective Leaching 01.1 01.1 01.1 01.3 01.1 01.1 Stress 01.1 01.1 01.1 20 01.1 01.1 Corrosion Cracking Stress Relaxation 04 04 04 04 04 04 l
Thermal Damage 01.1 01.1 01.1 01.3 01.1 01.1 l Thermal Embrittlement 04 04 04 04 04 04
! Wear 16 16 16 16 16 16 O
V Attachment 5 Page 1 of 1 1
Component Aging Management Review LCM-10 Revision 4 O
V Matrix Code List (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL DEVICE TYPE: HB EQUIPMENT TYPE: PIPE GROUP ID: 023-HB-01 Date: 3/28/96 Code Description Source 01 MATERIAL IS NOT APPLICABLE TO THE ARDM. MATERIAL OF ATTACHMENT 7 CONSTRUCTION IS NOT SUSCEPTIBLE TO THIS ARDM: 92767 SH HB-1 01.1 CARBON STEEL 01.3 ALLOY STEEL 02 PROCESS FLUID TYPE DOES NOT PERPETUATE THE ARDM. THE PROCESS ATTACHMENT 7 FLUID IS FUEL OIL WhtCH IS NORMALLY NOT FLOWING. THE SYSTEM IS UFSAR 8.4.1.2 PERIODICALLY OPERATED AT LOW PRESSURES AND FLOW RATES, WHICH 92769HD SH HB-1 ARE NOT THE CONDITIONS NORMALLY ASSOCIATED WITH THIS ARDM M-0080 PG 8 (HIGH VELOCITY AND/OR RAPID PRESSURE VARIATIONS). OI-21D ALTHOUGH THE SYSTEM OPERATING CONDITIONS MINIMlZE CAVITATION POSSIBILITY AND DURATION, THERE IS ONE PORTION OF THE SYSTEM WITH THE POTENTIAL FOR CAVITATION. DURING SYSTEM OPERATION THE UNLOADING PUMPS (WHICH ARE NOT IN LR SCOPE) MAY SEE LOW NPSH.
ACCORDING TO OPERATING PROCEDURE 01-21D VALVE OHVDFO-119 (IN LR SCOPE) IS MANUALLY THROTTLED TO PREVENT CAVITATION AT THE PUMP. THIS MANUAL OPERATION ASSURES THE PUMP, THROTTLING VALVE AND DOWNSTREAM PIPING WILL NOT EXPERIENCE CAVITATION. ,
03 PROCES3 FLUID DOES NOT PERPETUATE THE ARDM ON THE INSIDE OF ATTACHMENT 7 THE PIPE. THE PROCESS FLUID IS FUEL OIL. THE NORMAL HYDROGEN METALS HANDBK VOL 13 CONCENTRATION AND LOW PRESSURES ARE NOT SUFFICIENT TO MAKE ASTM A 106 HYDROGEN ATTACK OR BLISTERING PLAUSIBLE. HYDROGEN CRACKING IS ASTM A 181 NOT A CONCERN FOR MATERIALS WITH YlELD STRESSES LESS THAN 120 ASTM A 193 KSI, WHICH IS THE CASE FOR THIS PIPE (SY=35-36 KSI) AND BOLTS (SY=105 NP-5461 KSI). GENERAL CORROSION, WHICH CAN LEAD TO HYDROGEN DAMAGE, IS CH-1-100 ADDRESSED AS A SEPARATE ARDM. NP-5769 NP 3137 THE EXTERNAL ENVIRONMENT (AIR) DOES NOT CONTAIN SUFFICIENT BGM-96-031 HYDROGEN OR PRESSURE TO MAKE THIS ARDM PLAUSIBLE. MOLY DISULPHIDE LUBRICANTS ARE PERMITTED BY PROCEDURE TO BE USED ON NON-RESTRICTED SYSTEMS SUCH AS DFO. HOWEVER, MOLY DISULFIDE LUBRICANTS REQUIRE MOISTURE AND TEMPERATURE (>150F)
TO DECOMPOSE INTO HYDROGEN SULFIDE. GIVEN THE DESIGN TEMPERATURE OF 100F, ANTICIPATED AMBIENT TEMPERATURES OF LESS THAN 150F, AND DRYING EFFECTS OF WARMER TEMPERATURES, HYDROGEN DAMAGE DUE TO MOLY DISULFIDE LUBRICANTS IS NOT A CONCERN.
PIPE WELD HYDROGEN EMBR!1TLEMENT IS NOT A CONCERN FOR MILD CARBON STEEL WITH A YlELD STRENGTH IN THE RANGE OF 35-40 KSt.
04 PROCESS FLUID TEMPERATURE DOES NOT PERPETUATE THE ARDM. ATTACHMENT 7 OPERATING TEMPERATURES MUCH LESS THAN 500*F ENSURE THIS ARDM 92769 IS NOT PLAUStBLE (NORMALLY <100F). ES-014 1
):
Attachment 6 Page 1 of 3
Component Aging Management Review LCM-16 Revision 4
\vI Matrix Code List (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL DEVICE TYPE: HB EQUIPMENT TYPE: PIPE GROUP ID: 023-HB-01 Date: 3/28/96 Code Description Source 05 PROCESS FLUID FLOW RATE DOES NOT PERPETUATE THE ARDM. ATTACHMENT 7 RELATIVELY LOW FLOW VELOCITIES ARE NOT LIKELY TO ENTRAIN CP-226 DAMAGING PARTICULATES. THE CLEAN SYSTEM CONTAINS INSIGNIFICANT UFSAR 8.4.1.2 PARTICULATE MATTER. M-0080 PG8 06 PROCESS FLUID CHEMISTRY AND ENVIRONMENT DO NOT PERPETUATE ATTACHMENT 7 THE ARDM: M-216 CP-226 FOULING IS NOT PLAUStBLE. THE FLUID IS FUEL OIL. THE STORAGE TANK 12329-0005 FUEL IS TESTED FOR THE PRESENCE OF BIOLOGICS AND IS TREATED WITH A CORROSIVE INHIBITOR. THE SYSTEM TAKES SUCTION ABOVE THE l BOTTOM OF THE FUEL OIL TANKS (THE LOWEST NOZZLE BEING 8" ABOVE !
THE TANK BOTTOM), WHICH MINIMIZES CARRY OF SLUDGE INTO THE PIPES. THE FUEL OIL ITSELF KEEPS CORROSION PRODUCTS TO A MINIMUM ON THE INSIDE SURFACE OF THE PIPES. THEREFORE, THIS ARDM IS NOT PLAUSIBLE ON THE PIPE INTERNALS. FOULING IS NOT A CONCERN FOR PIPE EXTERNALS.
I (3 07 MATERIAL SELECTION / SEPARATION DOES NOT PERPETUATE THE ARDM. ATTACHMENT 7
( ) MATERIALS USED THROUGHOUT THE SYSTEM GENERALLY HAVE LOW 92767 C/ POTENTIAL DIFFERENCES AND,WHERE APPROPRIATE, ARE SEPARATED i BY APPROPR1 ATE TRANSITION MATERIALS.
l 08 PROCESS FLUID CHEMISTRY AND ENVIRONMENT DO NOT PERPETUATE ATTACHMENT 7 i THE ARDM: M-216 '
CP-226 MIC IS NOT PLAUSIBLE. THE FLUID IS FUEL OIL. THE STORAGE TANK FUEL 12329-0005 l lS TESTED QUARTERLY FOR THE PRESENCE OF BIOLOGICS. THE SYSTEM 1 TAKES SUCTION ABOVE THE BOTTOM OF THE FUEL OIL TANKS, WHERE i HISTORICALLY SLUDGE AND MICROBE GROWTH HAS OCCURRED. THIS l MINIMlZES THE POSSIBILITY OF TRANSFERRING MICROBES INTO THE PIPING SYSTEM ITSELF. WATER INTRODUCED TO THE TANK TENDS TO SINK TO THE BOTTOM AND IS PERIODICALLY DRAINED, THEREBY ;
PREVENTING WATER FROM BEING DRAWN INTO THE SYSTEM PIPING. THE l FUEL IS REGULARLY TESTED TO ASSURE THE FUEL CONTAINS LESS THAN j 0.05% WATER BY VOLUME. THE LACK OF WATER IN THE SYSTEM PIPES l PREVENTS SIGNIFICANT MICROBIOLOGICAL GROWTH. THEREFORE THIS ARDM IS NOT PLAUSIBLE FOR THE PIPE INTERNALS. MIC IS ALSO NOT PLAUSIBLE FOR PIPE EXTERNALS. THE LACK OF CONSISTENT STAGNANT WATER ON EXPOSED PIPE SURFACES PREVENTS SIGNIFICANT MICROBIOLOGICAL GROWTH.
12 SERVICE LOADING AMPLITUDES / FREQUENCIES DO NOT PERPETUATE THE ATTACHMENT 7 l ARDM. THE SYSTEM IS NOT CYCLED FREQUENTLY AND OPERATES AT 92769HB SH HB-1 LOW PRESSURE AND TEMPERATURES MAKING THIS ARDM NOT PLAUSIBLE. 01-21,01-21D
~~h (V i Attachment 6 Page 2 of 3
Component Aging Management Review LCM-16 Revision 4 l )
V' Matrix Code List (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL DEVICE TYPE: HB EQUIPMENT TYPF: PIPE GROUP ID: 023-HB-01 Date. 3/28/96 Code Description Source 16 WEAR IS NOT A PLAUSIBLE ARDM S3NCE THE SUBCOMPONENTS ARE ATTACHMENT 7 DESIGNED TO ELIMINATE ANY RELATIVE MOTION BETWEEN THE PARTS. 92767SH HB-1 THE SUBCOMPONENTS ARE DESIGNED SO THEY ARE NOT ADJACENT TO DFO PIPING ISOS (SEE OTHER SUBCOMPONENTS OR THEY ARE RESTRAINED SUCH THAT THERE AMR REPORT TABLE 1-1)
IS NOT RELATIVE MOTION.
18 COMPONENT MATERIAL AND ENVIRONMENT DO NOT PERPETUATE THE ATTACHMENT 7 ARDM: DFO PIPING ISOS (SEE AMR REPORT TABLE 1-1)
SALINE WATER ATTACK IS NOT A PLAUStBLE ARDM. THE PlPE IS NOT EMBEDDED IN CONCRETE, AND THE FLUlO IS FUEL OIL.
19 COMPONENT ENVIRONMENT DOES NOT PERPETUATE THE ARDM. THE ATTACHMENT 7 SUBCOMPONENTS TYPICALLY ARE NOT EXPOSED TO THE PROCESS FLUID WHICH MAKES THE ARDM NON-PLAUSIBLE.
20 COMPONENT MATERIAL AND ENVIRONMENT DO NOT PERPETUATE THE ATTACHMENT 7 ARDM: LCM 95-112 k~~ ) BOLTING MATERIAL IS A193 GR B7, WHICH IS RESISTANT TO MOST FORMS OF STRESS CORROSION CRACKING, PARTICULARLY CHLORIDE STRESS CORROSION CRACKING. THE INDUSTRY ISSUE RELATING TO STRESS 1 CORROSION CRACKING PROMOTED BY BORIC ACID AND DECOMPOSITION l OF THREAD LUBRICANTS CONTAINING MOLY-DISULFIDE DOES NOT APPLY TO THIS SYSTEM, AS THE SYSTEM DOES NOT CONTAIN BORIC ACID.
l A THE ARDM IS PLAUSIBLE BECAUSE THE EXTERNAL CARBON STEEL AND ATTACHMENT 7 l ALLOY FASTENER MATERIALS ARE EXPOSED TO HUMID, MOIST OR WET CP-226 l ENVIRONMENTS. SUN AND VEATHER WILL DETERIORATE THE PEO-0-023-2-0 1 PROTECTIVE PAINT COATING OF THE EXPOSED PIPES AND LEAD TO I ACCELERATED CORROSION MECHANISMS OF STEEL COMPONENTS EXPOSED TO MOISTURE. SOME PIPES ARE PROTECTED FROM DIRECT AFFECTS OF SUN AND WEATHER BY A CONCRETE ENCLOSURE OR PIT COVER. HOWEVER, THE STEEL SURFACES ARE STILL EXPOSED TO CHANGES IN HUMIDITY AND TEMPERATURES, REQUIRING THE l PROTECTION OF PAINT.
AGING MANAGEMENT RECOMMENDATIONS FOR PIPE EXTERNALS:
(1) PERIODICALLY INSPECT PAINT AND REPAIR AS REQUIRED.
1 GENERAL, CREVICE AND PITTING CORROSION ARE NOT PLAUStBLE FOR l PIPE INTERNALS. THE FLUID IS FUEL OIL. IT IS TESTED AND TREATED l
! WITH CORROSIVE INHIBITOR. THE FUEL DOES NOT CONTAIN SUFFICIENT l OXYGEN TO PRODUCE A CONCENTRATION CELL WATER INTRODUCED TO THE TANK TENDS TO SINK TO THE BOTTOM, PREVENTING WATER FROM BEING DRAWN INTO THE SYSTEM PIPING. THE FUEL IS REGULARLY TESTED TO ASSURE THE FUEL CONTAINS LESS THAN 0.05% WATER BY VOLUME. THE LACK OF WATER IN THE SYSTEM PIPES PREVENTS
(~N SIGNIFICANT CORROS'ON OF THE CARBON STEEL PIPES DUE TO WATER.
Y Attachment 6 Page 3 of 3 l
L
!- Component Aging Management Review LCM-16 Revision 4 bl Attachment 3 Component Grouping Summary Sheet (Revision 1)
N) Date: 03/19/96 SYSTEM: Diesel Fuel Oil (023) }
GROUP ID NUMBER: 023-HB-02 >
GROUP ATTRIBUTES:
- 1. Device Type: Pipe Line with Piping Code HB !
- 2. Vendor: !
- 3. Model Number;
- 4. Material: Coated and Wrapped
- 5. Internal Environment:
l 6. Extemal Environment: Buried in Ground
- 7. Function: Maintain System Pressure Boundary Integrity !
- 8. Name Plate Data: i PARAMETER VALUE i
LIST OF GROUPED COMPONENTS (EQUIPMENT ID):
O 0-HB5-1001 DFO System Piping
- 0-HBS-1002 DFO System Piping
- 0-HB5-1003 DFO System Piping
- 0-HB5-1004 DFO System Piping
- 0-HB5-1005 DFO System Piping
- 0-HB5-1006 DFO System Piping
- 0-HB5-1010 DFO System Piping
- 0-HBS-1019 DFO System Piping
- 0-HB5-1040 DFO System Piping
- 0-HB5-2002 DFO System Piping
- 0-HB5-2004 DFO System Piping
- 0-HB5-2006 DFO System Piping
- 0-HB5-2040 DFO System Piping *
- Component has portions which are both above ground and buried. This Group addresses only the buried portion.
~
I i I I
LO Attachment 3 l Page 1 of 1 l
O O O Component Aging Management Review LCM-16 Revision 4 Sub-Component /Sub-Group identification (Revision 1) Date: 3/27/96 SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL EQUIPMENT ID: PIPE GROUP ID: 023-HB-02 DEVICE TYPE NAME:- PIPE LINE WITH PIPING CODE OF *HB*
I Subj to Sut<omponent/ Name Manufacturer Material Model Number Passive Intended Function (s) AMR Sub-Group ID (Replacement Prgm) (Source) (Source) (Source) (Source) (Y or N) 023-HB-02A PIPE N/A A-106 GR B, SMLS CARBON N/A MAINTAIN PRESSURE BOUNDARY INTEGRITY Y *
(NONE) (N/A) STEEL (N/A) (CLSR)
(92767) .
023-HB-02B FITTINGS N/A FORGED: A-181 N/A MAINTAIN PRESSURE BOUNDARY INTEGRITY Y I (NONE) (N/A) (92767) (N/A) (CLSR) 023-HB-02C WELDS N/A CS WELD MATERIAL ' N/A MAINTAIN PRESSURE BOUNDARY INTEGRITY Y (NONE) (N/A) (TYPICAL) (N/A) (CLSR)
Attachment 4 Page 1 of 1
l l
Component Aging Management Review LCM-16
)
( Revision 4 ARDM Matrix (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: Diesel Fuel Oil EQUIPMENT TYPE: PIPE DEVICE TYPE: HB GROUP ID: 023-HB-02 Date: March 20,1996 023-HB- 023-HB- 023-H B-ARDMs 02A 028 02C Pipe Fittings Welds Cavitation Erosion 02 02 02 Corrosion Fatigue 12 12 12 Crevice Corrosion A A A -
Erosion Corrosion 02 02 02 Fatigue - 12 12 12 Fouling 06 06 06 Galvanic Corrosion 07 07 07 General Corrosion A A A Hydrogen Damage 03 03 03 Intergranular Attack 01.1 01.1 01.1 MIC A A A Particulate Wear 05 05 05 7
Erosion Pitting A A A Radiation Damage 01.1 01.1 01.1 Rubber Degradation 01.1 01.1 01.1 I
Saline Water Attack 18 18 18 l
Selective Leaching 01.1 01.1 01.1 l Stress 08 08 08 Corrosion Cracking Stress Relaxation 04 04 04 l Thermal Damage 01.1 01.1 01.1 l Thermal Embnttlement 04 04 04 Wear 16 16 16 l
l O i l
Attachment 5 Page 1 of 1 l
l
l Component Aging Management Review LCM-10 i Revision 4 lO Matrix Code List (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL DEVICE TYPE: HB EQUIPMENT TYPE: PIPE GROUP ID: 023-HB-02 Date: 3/28/96 Code Description Source r
01 MATERIAL IS NOT APPLICABLE TO THE ARDM. MATERIAL OF ATTACHMENT 7 CONSTRUCTION IS NOT SUSCEPTIBLE TO THIS ARDM: 92767 SH HB-1 01.1 CARBON STEEL 02 PROCESS FLUID TYPE DOES NOT PERPETUATE THE ARDM. THE PROCESS ATTACHMENT 7 FLUID IS FUEL OIL WHICH IS NORMALLY NOT FLOWING. THE SYSTEM IS UFSAR 8.4.1.2 PERIODICALLY OPERATED AT LOW PRESSURES AND FLOW RATES, WHICH 92769HB SH HB-1 ARE NOT THE CONDITIONS NORMALLY ASSOCIATED WITH THIS ARDM M-0080 PG 8 (HIGH VELOCITY AND/OR RAPID PRESSURE VARIATIONS). OI-21D ALTHOUGH THE SYSTEM OPERATING CONDITIONS MINIMlZE CAVITATION POSSIBILITY AND DURATION, THERE IS ONE PORTION OF THE SYSTEM WITH THE POTENTIAL FOR CAVITATION. DURING SYSTEM OPERATION THE UNLOADING PUMPS (WHICH ARE NOT IN LR SCOPE) MAY SEE LOW NPSH.
ACCORDING TO OPERAT:NG PROCEDURE 01-21D VALVE OHVDFO-119 (IN LR SCOPE)IS MANUALLY THROTTLED TO PREVENT CAVITATION AT THE PUMP. THIS MANUAL OPERATION ASSURES THE PUMP, THROTTLING VALVE AND DOWNSTREAM PIPING WILL NOT EXPERIENCE CAVITATION.
\
03 PROCESS FLUID DOES NOT PERPETUATE THE ARDM ON THE INSIDE OF A1TACHMENT 7 THE PIPE. THE PROCESS FLUID IS FUEL OIL THE NORMAL HYDROGEN METALS HANDBK VOL 13 CONCENTRATION AND LOW PRESSURES ARE NOT SUFFICIENT TO MAKE NP-5461 HYDROGEN ATTACK OR BLISTERING PLAUSIBLE. HYDROGEN CRACKING iS ASTM A 106 NOT A CONCERN FOR MATERIALS WITH YlELD STRESSES LESS THAN 120 ASTM A 181 KSI, WHICH IS THE CASE FOR THIS PIPE (YS= 35-36 KSI). GENERAL CORROSION, WHICH CAN LEAD TO HYDROGEN DAMAGE, IS ADDRESSED AS A SEPARATE ARDM.
THE EXTERNAL ENVIRONMENT (SAND, AIR, ETC...) DOES NOT CONTAIN SUFFICIENT HYDROGEN OR PRESSURE TO MAKE THIS ARDM PLAUSIBLE.
PIPE WELD HYDROGEN EMBRITTLEMENT IS NOT A CONCERN FOR MILD CARBON STEEL WITH A YlELD STRENGTH IN THE RANGE OF 35-40 KSt.
04 PROCESS FLUID TEMPERATURE DOES NOT PERPETUATE THE ARDM. ATTACHMENT 7 OPERATING TEMPERATURES MUCH LESS THAN 500*F ENSURE THIS ARDM 92769 IS NOT PLAUSIBLE (NORMALLY <100F). ES-014 05 PROCESS FLUID FLOW RATE DOES NOT PERPETUATE THE ARDM. ATTACHMENT 7 RELATIVELY LOW FLOW VELOCITIES ARE NOT LIKELY TO ENTRAIN CP-226 DAMAGING PARTICULATES. THE CLEAN SYSTEM CONTAINS INSIGNIFICANT UFSAR 8.4.1.2 PARTICULATE MATTER. M-0080 PG8 Attachment 6 Page 1 of 3
Component Aging Management Review LCM-16 Revision 4
'K j Matrix Code List (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL DEVICE TYPE: HB EQUIPMENT TYPE: PIPE GROUP ID: 023-HB-02 Date: 3/28/96 Code Description Source 06 PROCESS FLUID CHEMISTRY AND ENVIRONMENT DO NOT PERPETUATE ATTACHMENT 7 THE ARDM: 92767 M-216 FOULING IS NOT PLAUSIBLE. THE FLUID IS FUEL OIL. THE STORAGE TANK CP-226 FUEL IS TESTED FOR THE PRESENCE OF BIOLOGICS AND IS TREATED 12329-0005 WITH A CORROSIVE INHIBITOR. THE SYSTEM TAKES SUCTION ABOVE THE BOTTOM OF THE FUEL OIL TANKS (THE LOWEST NOZZLE BEING 8" ABOVE THE TANK BOTTOM), WHICH MINIMlZES CARRY OF SLUDGE INTO THE PIPES. THE FUEL OIL ITSELF KEEPS CORROSION PRODUCTS TO A MINIMUM ON THE INSIDE SURFACE OF THE PIPES. THEREFORE, THIS ARDM IS NOT PLAUSIBLE ON THE PIPE INTERNALS. FOULING iS NOT A CONCERN FOR PIPE EXTERNALS.
07 MATERIAL SELECTION / SEPARATION DOES NOT PERPETUATE THE ARDM. ATTACHMENT 7 MATERIALS USED THROUGHOUT THE SYSTEM GENERALLY HAVE LOW 61201,92767 POTENTIAL DIFFERENCES AND, WHERE APPROPRIATE, ARE SEPARATED 61406SH0004SEC101.2 BY APPROPRIATE TRANSITION MATERIALS. THE BURIED PIPE IS PROTECTED BY AN IMPRESSED CATHODIC PROTECTION SYSTEM.
A I i 08
' COMPONENT MATERIAL AND STRESSES DO NOT PERPETUATE THE ARDM. ATTACHMENT 7 THE MATERIAL IS MILD CARBON STEEL WITH YlELD STRENGTH OF 35-36 NACE-7 PGS 101,136-138 KSI, WHICH IS NORMALLY NOT AFFECTED BY SCC. THE MECHANISM OF 9276SH HB-1 CATHODIC PROTECTION INDUCED SCC AT DISBONDED WRAPPING ASTM A 106 LOCATIONS IS A FUNCTION OF SEVERAL ITEMS INCLUDING PIPE MATERIAL ASTM A 181 AND STRESS. INDUSTRY EXPERIENCE AND TESTING SHOWS SCC IS LESS LIKELY TO OCCUR WHEN YlELD STRENGTHS ARE LOW, AND ALMOST NEVER OCCUR FOR MATERIALS WITH THIS LOW OF A YlELD STRENGTH.
GIVEN THE DESIGN PRESSURE OF 35 PSIG AND MAX OPERATING PRESSURE OF 25 PSIG, THE P! PING HOOP STRESSES ARE NEGLIGIBLE (APPROXIMATELY 350 PSI). BASED ON THESE CONDITIONS THE ARDM IS l NOT CONSIDERED PLAUSIBLE FOR PIPE EXTERNALS. I MILD CARBON STEEL INTERNALS EXPOSED TO FUEL OIL ARE NOT CONDITIONS CONDUSIVE TO SCC..
l 12 SERVICE LOADING AMPLITUDES / FREQUENCIES DO NOT PERPETUATE THE ATTACHMENT 7 ARDM. THE SYSTEM IS NOT CYCLED FREQUENTLY AND OPERATES AT 92769HB SH HB-1 LOW PRESSURE AND TEMPERATURES MAKING THIS ARDM NOT PLAUSIBLE. OI-21,01-21 D i l
16 WEAR IS NOT A PLAUSIBLE ARDM SINCE THE SUBCOMPONENTS ARE ATTACHMENT 7 DESIGNED TO ELIMINATE ANY RELATIVE MOTION BETWEEN THE PARTS. 92767SH HB-1 THE DFO PIPING IN THIS GROUP IS BURIED, THEREBY ELIMINATING DFO PIPING ISOS (SEE RELATIVE MOTION. AMR REPORT TABLE 1-1) 18 COMPONENT MATERIAL AND ENVIRONMENT DO NOT PERPETUATE THE ATTACHMENT 7 ARDM: DFO PIPING ISOS (SEE AMR REPORT TABLE 1-1)
SALINE WATER ATTACK IS NOT A PLAUSIBLE ARDM. THE PIPE IS NOT EMBEDDED IN CONCRETE, AND THE FLUID IS FUEL Oll.
p Y
Attachment 6 Page 2 of 3
Component Aging Management Review LCM-16 Revision 4 sd Matrix Code List (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL DEVICE TYPE: HB EQUIPMENT TYPE: PIPE GROUP ID: 023-HB-02 Date: 3/28/96 Code Description Source A CREVICE CORROSION, GENERAL CORROSION, MIC AND PITTING ARE ATTACMMENT 7, COMMON ARDMS FOR BURIED PIPE. SOIL RESISTIVITY (OR CORROSION AND CONDUCTIVITY); CHLORIDE AND SULFATE PRESENCE; OXYGEN CONTENT CORROSION CONTROL AND SOIL AERATION; pH; MOISTURE CONTENT OF THE SOIL AND WET / DRY (UHLIG),
CYCLES; AND MICROBE ACTIVITY AFFECT THESE MECHANISMS. SPECIFIC CORROSION INFORMATION CONCERNING THESE ATTRIBUTES ALONG THE BURIED DFO ENGINEERING (FONTANA),
PIPE RUNS IS NOT READILY AVAILABLE. THE PIPING lS PROTECTED PER CP-226, STANDARD INDUSTRY PRACTICE WITH AN EXTERNAL COATING AND PEO-0-023-2-0, WRAPPING, AND WITH AN IMPRESSED CATHODIC PROTECTION SYSTEM. U-96-001(BIOBOR),
C-96 003 (CUMMINS)
AGING MANAGEMENT RECOMMENDATIONS: 12329-0005 (1) CONFIRM THROUGH REGULAR INSPECTIONS THAT THE PROTECTIVE COATING AND CATHODIC PROTECTION SYSTEM FOR DFO BURIED PIPING ARE ADEQUATELY PROTECTING THE PIPE FROM THE PLAUSIBLE ARDMS.
ARDMS PLAUS!SLE FOR FIPE EXTERNAL SURFACES ARE NOT PLAUSIBLE FOR INTERNAL SURFACES; THEREFORE INTERNAL SURFACES NEED NOT BE INSPECTED. THE FOLLOWING PROVIDES A BASIS FOR EACH ARDM:
lA kJ
! GENERAL, CREVICE AND PITTING CORROSION: THE FLUID IS FUEL Oll. IT IS TESTED AND TREATED WITH CORROSIVE INHIBITOR. THE FUEL DOES NOT CONTAIN SUFFICIENT OXYGEN TO PRODUCE A CONCENTRATION CELL. WATER INTRODUCED TO THE TANK TENDS TO SINK TO THE BOTTOM AND IS DRAINED PERIODICALLY, THEREBY PREVENTING WATER FROM BEING DRAWN INTO THE SYSTEM PIPING. THE FUEL IS REGULARLY TESTED TO ASSURE THE FUEL CONTAINS LESS THAN 0.05% WATER BY VOLUME. THE LACK OF WATER IN THE SYSTEM PIPES PREVENTS SIGNIFICANT CORROSION OF THE CARBON STEEL INTERNAL SURFACES 1 DUE TO WATER, '
MIC: THE FLUID IS FUEL OIL. THE STOPAGE TANK FUEL IS TESTED QUARTERLY FOR THE PRESENCE OF BIOLOGICS. THE SYSTEM TAKES SUCTION ABOVE THE BOTTOM OF THE FUEL OIL TANKS, WHERE HISTORICALLY SLUDGE AND MICROBE GROWTH HAS OCCURRED. THIS MINIMIZES THE POSSIBILITY OF TRANSFERRING MICROBES INTO THE PIPING SYSTEM ITSEf.F. WATER INTRODUCED TO THE TANK TENDS TO SINK TO THE BOTTOM AND IS PERIODICALLY DRAINED, THEREBY PREVENTING WATER FROM BEING DRAWN INTO THE SYSTEM PIPING THE FUEL IS REGULARLY TESTED TO ASSURE THE FUEL CONTAINS LESS THAN l 0.05% WATER BY VOLUME. THE LACK OF WATER IN THE SYSTEM PIPES PREVENTS SIGNIFICANT MICROBIOLOGICAL GROWTH. THEREFORE, THIS {
AROM IS NOT PLAUSIBLE FOR THE PIPE INTERNALS. j l
i i < !
%J Attachment 6 Page 3 of 3 j
1 l
Componint Aging M:ntg:m:nt R;vi:w LCM-16 Revision 4 SYSTEM: 023, Diesel Fuel Oil
()
Potential ARDM List (Revision 1)
CQUIPMENT TYPE:
VALVE Date: March 27,1996 l
ARDM POTENTIAL DESCRIPTION / JUSTIFICATION SOURCE I Civitation Yes Localized material erosion caused by formation and collapse of [7]
Erosion vapor bubbles in close proximity to material surface. Requires fluid (liquid) flow and pressure variations which temporarily drop the liquid pressure below the corresponding vapor pressure. Most materials are susceptible to varying degrees depending upon the severity of the environmental factors.
Corrosion Yes Plant equipment operating in a corrosive environment subjected to [7]
Fctigue cyclic (fatigue) loading may initiate cracks and/or fail sooner than expected based on analysis of the corrosion and fatigue loadings applied separately. Fatigue-crack initiation and growth usually follows a transgranular path, although there are some cases !
where intergranular cracking has been observed. In some cases, l
crack initiation occurs by fatigue and is subsequently dominated by corrnsion advance. In other cases, a corrosion mechanism !
(SCC) can be responsible for crack formation below the fatigue l threshold, and the fatigue mechanism can accelerate the crack l propagation. Corrosion-fatigue is a potentially active mechanism j l l in both stainless steels as well as carbon and low alloy steels. I Creep / No Not applicable to Equipment Type. The phenomenon results in [2]
Shrinkage dimensional changes in metals at high temperatures and in concrete subject to long term dehydration. This ARDM is not applicable to this equipment type since proper component specification and design prevents this ARDM from occuring (i.e.,
system and component design standards adequately address d1is ARDM).
Cr;vice Yes Crevice corrosion is intense, localized corrosion within crevices or [6]
Corrosion shielded areas. It is associated with a small volume of stagnant [7]
solution caused by holes, gasket surfaces, lap joints, crevices [12]
under bolt heads, surface depsits, designed crevices for attaching thermal sleeves to safe-ends, and integral weld backing rings or back-up bars. The crevice must be wide enough to permit liquid entry and narrow enough to maintain stagnant conditions, typically a few thousandths of an inch or less. Crevice corrosion is closely related to pitting corrosion and can initiate pits in many cases as well as leading to stress corrosion cracking. In an oxidizing environment, a crevice can set up a differential aeration cell to concentrate an acid solution within the crevice. Even in a t reducing environment, alternate wetting and drying can j concentrate aggressive ionic species to cause pitting, crevice
! corrosion, intergranular attack, or stress corrosion cracking.
i i
Attachment 7 Page 1 of 11
i l
! Compon:nt Aging Managtm:nt R: view LCM-16 Revision 4
! SYSTEM: 023, Diesel Fuel Oil i 9 EQUIPMENT TYPE: VALVE Potential ARDM List (Revision 1)
Date: March 27,1996 Erosion Yes increased rate of attack on a metal because of the relative [5]
Corrosion movement between a corrosive fluid and the metal surface. [6]
Mechanical wear or abrasion can be involved, characterized by [7]
grooves, gullies, waves, holes and valleys on the metal surface.
Erosion is a mechanical action of a fluid and/or particulate matter on a metal surface, without the influence of corrosion. Erosion corrosion failures can occur in a relatively short time and are sometimes unexpected, since corrosion tests are usually run under static conditions. All equipment exposed to moving fluids is vulnerable; in particular, piping (bends, tees, etc.), Valves, pumps, propellers and impellers, heat exchanger tubing, turbine blades and wear plates are components which have experienced erosion corrosion. This is a serious problem in steam piping, heater drain ;
piping, reheaters, and moisture separators due to high velocity i particle impingement. Erosion corrosion has occurred in high and low pressure preheater tubes, low pressure preheaters, evaporators and feedwater heaters. Inletfrom tube thecorrosion exchanger occurs in J heat exchangers, due to the turbulence of flow head into the smaller tubes, within the first few inches of the tube. l Such corrosion has been especially evident in condenser tubes and feedwater heaters. The occurrence of erosion corrosion is l l highly dependent upon material of construction and the fluid flow conditions. Carbon or low alloy steels are particularly susceptible when in contact with high velocity water (single or two phase) with turbulent flow, low oxygen and fluid pH < 9.3. Maximum erosion corrosion rates are expected in carbon steel at 130-140*C (single phase) and 180 C (two phase).
Fatigue Yes Fatigue damage results from progressive, localized structural [6]
change in materials subjected to fluctuating stresses and strains. [7]
Associated failures may occur at either high or low cycles in [2]
response to various kinds of loads (e.g., Mechanical or vibrational loads, thermal cycles, or pressure cycles). Fatigue cracks initiate and propagate in regions of stress concentration that intensify strain. The fatigue life of a component is a function of several variables such as stress level, stress state, cyclic wave form, fatigue environment, and the metallurgical condition of the material. Fai;ure occurs when the endurance limit number of cycles (for a given load amplitude) is exceeded. All materials are susceptible (with varying endurance limits) when subjected to cyclic loading. Vibration loads have also been the cause of recurring weld failures by the fatigue of small socket welds.
Certain piping locations, such as charging lines, have been found to experience vibration conditions. In some cases these failures in
- pipe have been due to inadequately supported pipe or obturator
- induced vibratory loads.
Attachment 7 Page 2 of 11
l Component Aging Minigim:nt R: view LCM-16 Revision 4 023, Diesel Fuel Oil
(. SYSTEM:%)QUIPMENT VALVE TYPE:
Potential ARDM List (Revision 1)
Date: March 27,1996 Fou ing Yes Unavoidable introduction of foreign substances that interact with [9]
and/oi collect within system and components. Caused by failure [10]
or degradation of upstream removal process equipment, long term [11]
buildup, low flow, stagnant flow, infrequent operation, and/or contaminated inlet flow. Fouling refers to all deposits on system ,
surfaces that increase resistance to fluid flow and/or heat transfer. i Sources of fouling include the following: (1) organic films of l micro-organisms and their products (microbial fouling) (2) !
deposits of macro-organisms such as mussels (macrobial fouling) I (3) inorganic deposits, including scales, silt, corrosion products and detritus. Scales result when solubility limits for a given species are exceeded. Deposits result when coolant-bome particles drop I onto surfaces due to hydraulic factors. The deposits result in {
reduced flow of cooling water, reduced heat transfer, and !
increased corrosion. Sediment deposits promote concentration 1 cell corrosion and growth of sulfur-reducing bacteria. The bacteiia l can cause severe pitting after one month of service. Piping l systems designed for 30 years have had their projected life reduced to five years due to under-sediment corrosion.
Galvanic Yes Accelerated corrosion caused by dissimilar metals in contact in a [12]
{ porrosion conductive solution. Requires two dissimilar metals in physical or electrical contact, developed potential (material dependent), and conducting solution, General Yes Thinning (wastage) of a metal by chemical attack (dissolution) at [7]
Corrosion the surface of the metal by an aggressive environment. The [8]
consequences of the damage are loss of load carrying [2]
cross-ssctional area. General corrosion requires an aggressive [15]
environment and materials susceptible to that environment. An important concem for PWRs is boric acid attack of carbon steels.
Borated water has been observed to leak from piping, valves, l storage tanks, etc., and fall on other carbon steel components and attack the component from the outside. Wastage is not a concern for austenitic stainless steel alloys.
t
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C Attachment 7 Page 3 of 11
1 l
Component Aging M nag;mnnt R:vi:w LCM-16 Revision 4 YSTEM: 023, Diesel Fuel Oil Potential ARDM List (Revision 1)
QUIPMENT TYPE: VALVE Date: March 27,1996 Hydrogen Yes Two forms of hydrogen attack relevant to light water reactor [6]
D mage materials and conditions are hydrogen blistering and hydrogen [7]
embrittlement. Both produce mechanical damage in the affected component. In each case, atomic hydrogen enters the metal, either as a result of a corrosion reaction at the surface or by cathodic polarization which results in the evolution of hydrogen gas. In blistering, interstitial atomic hydrogen is combined into molecular hydrogen within the metal, causing high pressure and local damage in the form of " blistered" regions of the metal surface. Hydrogen embrittlement affects ferritic and martensitic iron-based alloys, and results in low ductility intergranular cracking (similar to stress corrosion cracking). The phenomenon of hydrogen cracking is usually manifested as delayed cracking, at or near room temperature, after stress is applied. A certain critical stress, which may take the form of weld residual stress, is required to cause cracking. Notches concentrate such stresses and tend to shorten the delay time for cracking. Cracking of welds due to hydrogen embrittlement and hydrogen-induced cracking is a common concem. This cracking is more of a problem in higher strength steels (yield strength >120 ksi). Ferritic and martensitic stainless steels, carbon steels, and other high strength alloys are
{ l susceptible. Austenitic stainless steels are relatively immune but could experience damage at sufficiently high hydrogen levels.
Catalyst poisons or pickling inhibitors, as well as lubricants or other material containing P, S or As compounds (e.g.,
molybdenum disulfide lubricants) favor the entrance of atomic hydrogen into the metal lattice and should therefore be limited. j int:rgranular Yes intergranular Attack (IGA) is very similar to intergranular stren [6]
Attack corrosion cracking (IGSCC) except that stress is not required for [7]
IGA. IGA is localized corrosion at or adjacent to grain boundaries, [2] !
with relatively little corrosion of the material grains. It is caused by [12]
impurities in the grain boundaries, or the enrichment or depletion of alloying elements at grain boundaries, such as the depletion of chromium at austenitic stainless steel grain boundaries. A
" sensitized" microstructure causes susceptibility to IGA. When austenitic stainless steels are heated into or slow cooled through l the temperature range of approximately 750 to 1500 F, chromium 1 cartides can be formed, thus depleting the grain boundaries of l chromium and decreasing their corrosion resistance. High l chromium ferritic stainless steels, such as Type 430, also I experience susceptibility to IGA. Nickel alloys such as alloy 600 j experience IGA in the presence of certain sulfur environments at I high temperatures (by forming low melting sulfur compounds at grain boundaries) or when austenitic stainless steel weld filler metalis inadvertently used on Ni-Cr-Fe alloys. Susceptibility to intergranular attack (sensitization) usually develops during thermal l processing such as welding or heat treatments. l l
Attachment 7 Page 4 of 11
Compon:nt Aging Minigsm:nt Rsvi:w LCM-16 Revision 4 YSTEM: 023, Diesel Fuel Oil Potential ARDM List (Revision 1) l QUIPMENT TYPE: VALVE Date: March 27,1996 l
Irridiation No Not applicable to Equipment Type. The ARDM results in a [6]
Embrittlement decrease in steel fracture toughness due to long-term exposure to [7]
a fast flux of neutrons. High neutron fluence levels can lead to embrittlement of the reactor pressure vessel core beltline, as well as certain reactor internals and core support structures. Control of material composition to low levels of Cu and Ni (and perhaps P - I and Si, to some extent) is beneficial in some cases, such as the '
reactor pressure vessel ferritic steel. Core support structure peak fluences as high as 1.0E+21 (e > 1mev) are reached in some cases and can embrittle the austenitic stainless steels and alloy 600 materialin these components. PWRs experience fluences of between 9.0E+18 and about 4.0E+19 (e > 1mev) at the vessel i beltline inside surface. Safe-ends and piping outside the vessel are not expected to cxperience irradiation significant enough to cause problems. However, the embrittlement effects due to low flux irradiation are not well understood. This ARDM is not applicable to this equipment type since valve components are located outside the reactor building, where the neutron flux is not high enough to cause this ARDM to occur.
O lb 1
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l Attachment 7 I
Page 5 of 11 l
i i
Compon:nt Aging Manag:m:nt R;vi:w LCM-16 Revision 4 SYSTEM: 023, Diesel Fuel Oil
) Potential ARDM List (Revision 1)
( dQUIPMENTTYPE:
VALVE Date: March 27,1996 MIC Yes Accelerated corrosion of materials resulting from surface [6] ;
microbiological activity. Sulfate reducing bacteria, sulfur oxidizers. [7] l' and iron oxidizing bacteria are most commonly associated with [2]
corrosion effects. Most often results in pitting followed by [14]
excessive deposition of corrosion products. Stagnant or low flow areas are most susceptible. Any system that uses untreated 4 water, or is buried, is particularly susceptible. Several forms of l fungi and other microorganisms can also survive and multiply in l hydrocarbon fuels.
l l
Consequences range from leakage to excessive differential ;
pressute and flow blockage. Essentially all systems and most ;
commonly-used materials are susceptible. Temperatures from about 50*F to 120*F are most conducive to MIC. Experience in virtually all large industries is common. Nuclear experience is relatively new, but also widespread. MIC is generally observed in service water applications utilizing raw untreated water.
Sedimentation aggravates the problem. Hydrocarbon fuel fungi grow into long strings, and form larger mats or globules. They may grow though out the fuel, or at the interface area between the fuel and water bottom layer. As the fuel is agitated, for instance l ) during filling, fungal growth is distributed throughout the fuel system. The fungus organisms need only trace amounts of minerals and water to sustain their growth, and use the fuel as their main energy / food source. Their growth chemically alters the fuel by producing sludge, acids, and other products of metabolism.
When they adhere to the fuel containing surfaces the water and waste products lead to corrosion. Rubber and other tank linings, hoses and coatings may also be consumed due to their energy and trace mineral composition.
Oxidation No Not applicable to Equipment Type. The isRDM results from a [7]
Chemical reaction at the surface of a material when subjected to [12]
an oxidizing environment. Oxidation occurs at any temperature.
Electrical components experience degradation related to oxidation and are considered separately. Oxidation generally is not considered a deradation mechanism in metals of fluid systems in mild environments since this mechanism serves to protect materials by formation of a passive !ayer. Other corrosion mechanisms (e.g. Corrosion fatigue, crevice corrosion, erosion ,
corrosion, general corrosion and pitting) can result from I oxidation / reduction reactions under specific aggressive )
mechanical and chemical environment and are addressed l separately. It could be considered a degradation mechanism at l high temperatures, where a more rapid reaction between metal j and oxygen is likely to occur. These temperatures do not occur in l power plant applications under evaluation. Therefore, oxidation is l not considered a potential ARDM for valve components.
Attachment 7 Page 6 of 11 l
T Compon nt Aging Man gtm:nt Revi:w LCM-16
! Revision 4
[ SYSTEM: 023, Diesel Fuel Oil Potential ARDM List (Revision 1)
QUIPMENT TYPE: VALVE Date: March 27,1996
, Pirticulate Yes The loss of material caused by mechanical abrasion due to [7]
l We:r Erosion relative motion between solution and material surface. Requires l high velocity fluid, entrained particles, turbulent flow regions, flow direction change, and/or impingement. Most materials are susceptible to varying degrees depending upon the severity of the environmental factors.
Pitting Yes A form of localized attack with greater corrosion rates at some [6]
locations than at others. Pitting can be very insidious and [7]
destructive, with sudden failures in high pressure applications [2]
(especially in tubes) occurring by perforation. This form of [12]
corrosion essentially produces " holes" of varying depth to diameter ratios in the steel. These pits are, in many cases, filled with oxide debris, especially for ferritic materials such as carbon steel. Deep pitting is more common with passive metals, such as austenitic stainless steels, than with non- passive metals. Pits are generally elongated in the direction of gravity. In many cases, erosion corrosion, fretting corrosion, and crevice corrosion can also lead to pitting. Corrosion pitting is an anodic reaction which is an autocatalytic process. That is, the corrosion process within a pit produces conditions which stimulate the continuing activity of the
{ } pit. High concentrations of impurity anions such as chlorides and sulfates tend to concentrate in the oxygen- depleted pit region, giving rise to a potentially concentrated aggressive solution in this zone. Pitting has been found on the outside diameter of tubes I where sludge or tube scale was present. It can also occur at locations of relatively stagnant coolant or water, such as in carbon steel pipes for service water lines, and at crevices in stainless steel, such as at the stainless steel cladding between reactor pressure vessel closure flanges. Pitting can become passive in some metals such as aluminum.
Ridiation Yes Non-metallies are susceptible to degradation caused by gamma [4]
Damage radiation.
Rubber Yes Rubber can be used in specific applications of this device type. [3]
Degradation Long term exposure of rubber to water will result in water l absorption and swelling, blistering, hardening, and eventual 1 cracking. When utilized as a protective lining, moisture permeation of the rubber produces blisters beneath the lining and initiates corrosion of the lined surface.
I
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Attachment 7 Page 7 of 11
- . - . - , - . ~- -- _ - .. - -
1 Compon:nt Aging Manag:msnt Rsview LCM-16 Revision 4 SYSTEM: 023, Diesel Fuel Oil i
/
Potential ARDM List (Revision 1) !
()QUIPMENT TYPE: VALVE Date: March 27,1996 Saline Water No Not applicable to Equipment Type. Saline Water Attack has [2]
Attack resulted in the degradation of reinforced concrete structures. The degradation mechanism invo!ves water seepage into the concrete resulting in a high chloride environment for the reinforcing bars.
The reinforcing bars corrode resulting in expansion that leads to cracking and spalling of the concrete. Of particular concern for structures that are inaccessible for routine inspection, and pip!ng or other fluid components embedded in concrete. This ARDM is l not applicable to valve components since valves are not ,
constructed of nor typically installed in concrete. 1 S;lective Yes The removal of one element from a solid alloy by corrosion [12]
Leiching processes. The most common example is the selective removal of [13]
zinc in brass alloys (dezincification). Similar processes occur in other alloy systems in which aluminum, iron, cobalt, chromium, and other elements are removed. There are two types, layer-type and plug-type. Layer-type is a uniform attack whereas plug-type is extremely localized leading to pitting. Overall dimensions do not change appreciably. If a piece of equipment is covered by debris or surface deposits and/or not inspected closely, sudden unexpected failure may occur in high pressure applications due to
{ l the poor strength of the remaining material. Requires susceptible materials and corrosive environment. Materials particularly susceptible include zinc, aluminum, carbon and nickel.
Environmental conditions include high temperature, stagnant aqueous solution, and porous inorganic scale. Acidic solutions and oxygen aggravate the mechanism.
Str:ss Yes Selective corrosive attack along or across material grain [6]
Corrosion boundaries. Four particular mechanisms are known to exist: (1) [7]
Crtcking Intergranular (IGSCC), between the material grain boundaries. (2) [2]
Transgranular (TGSCC), across the material grains along certain [12]
crystallographic planes. (3) Irradiation Assisted (IASCC), between [13]
the material grains after an incubation neutron dose which (15]
sensitizes the material. (4) Interdendritic (IDSCC), between the dendrite interfaces. SCC requires applied or residual tensile stress, susceptible materials (such as austenitic stainless steels, alloy 600, alloy x-750, SAE 4340, and ASTM A289), and oxygen and/or ionic species (eg., Chlorides / sulfates).
l l
t ha Attachment 7 Page 8 of 11 I
l Compon:nt Aging M:n:g:m:nt R: view LCM-16 Revision 4 YSTEM: 023, Diesel Fuel Oil Potential ARDM List (Revision 1)
QUIPMENT TYPE: VALVE Date: March 27,1996 Str:ss Yes Common sources of residual stress include thermal processing Corrosion (Cont'd) and stress risers created during surface finishing, fabrication, or Cricking assembly. The heat input during welding can result in a localized (Continued) sensitized region which is susceptible to SCC. IGSCC is a concern in stainless steel piping depending on material condition and process fluid chemistry and also is a potential concern in valve internals (PH steel). SCC of low alloy steel and carbon steel is not considered a credible aging mechanism for typical conditions l encountered in a nuclear power plant. TGSCC may be a concem l in low alloy and stainless steel if aggressive chemical species (caustics, halogens, sulfates, especially if coupled with the presence of oxygen) are present. lASCC is a potential concern only for reactor vesselintemals and other stainless steel components, such as control rods, which are subject to very high neutron fluence levels. A fast neutron incubation fluence of at least 1.0E+20 is generslly required to sensitize the material.
IDSCC is a potential concern in stainless steel weld metal deposits < !
based on microstructure and delta ferrite content. This mechanism is inactive in carbon and low alloy steel. Ammonia grooving in brass components can occur when the concentration of ammonia
{ } is greater than a few ppm. It is found most often in feedwater heaters that contain admiralty brass tubes and where morpholine, which breaks down into ammonia, is used to increase the pH of the condensate.
Str:ss Yes Stress Relaxation occurs under conditions of constant strain [7]
R:1:xation where part of the elastic strain is replaced with plastic strain. A material loaded to an initial stress may experience a reduction in stress over time at high temperatures (>700*F for typical materials). Bolted connections are most vulnerable. Relaxation of stress on packing due to stretching of gland follower studs under elevated temperatures may cause packing leakage.
Irradiation fluence levels greater than 6.0E19 increase relaxation in austenitic and nickel alloy steels.
Thirmal Yes Non-metallics are particularly susceptible with material dependent [7]
Dimage temperature limits. [2]
Th:rmal Yes Loss of material fracture toughness caused by thermally induced [7]
Embrittlement changes in the formation and distribution of alloying constituents.
Requires high temperature 500 F to 700 F for metallic l
components. Ferrite containing stainless steels are susceptible as are materials with grain boundary segregation of impurities.
l I Attachment 7 Page 9 of 11
Compon:nt Aging Man:g:m:nt R vi w LCM-16 Revision 4 YSTEM: 023, Diesel Fuel Oil Potential ARDM List (Revision 1)
QUIPMENT TYPE: VALVE Date: March 27,1996 W ar Yes Wear results from relative motion between two surfaces (adhesive [1]
wear), from the influence of hard, abrasive particles (abrasive wear - see particulate erosion) or fluid stream (erosion), and from small, vibratory or sliding motions under the influence of a corrosive environment (fretting). In addition to materialloss from the above wear mechanisms, impeded relative motion between two surfaces held in intimate contact for extended periods may result from galling /self-welding. Motions may be linear, circular, or vibratory in inert or corrosive environments. The most common result of wear is damage to one or both surfaces involved in the contact. Wear most typically occurs in components which experience considerable relative motion such as valves and pumps, in components which are held under high loads with no motion for long periods (valves, flanges), or in clamped joints where relative motion is not intended but occurs due to a loss of clamping force (e.G., Tubes in supports, valve stems in seats, springs against tubes). Wear may proceed at an ever-increasing rate as wom surfaces moving past one anoiner will often do so with much higher contact stresses than the surfaces of the original geometry. Fretting is a wear phenomenon that occurs between tight-fitting surfaces subjected to a cyclic, relative motion of I l l extremely small amplitude. Fretting is frequently accompanied by l corrosion. Common sites for fretting are in joints that are bolted, l keyed, pinned, press fit or riveted; in oscillating bearings, couplings, spindles, arid seals; in press fits on shafts; and in universaljoints. Under fretting conditions, fatigue cracks maf be initiated at stresses well below the endurance limit of nonfretted specimens.
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Attachment 7 Fage 10 of 11 i
Component Aging Min;g:m:nt Rrvi:w LCM-16 Revision 4 023, Diesel Fuel Oil f_ SYSTEM: Potential ARDM List (Revision 1)
%)QUIPMENT TYPE: VALVE Date: March 27,1996 Attachment 7 Reference List Source Title
[1] ASME Wear Control Handbook, Peterson and Winer,1980
[2] Standard Format and Content of Technical Information for Applications to Renew Nuclea-Power Plant Operating Licenses, Draft NRC Regulatory Guide No. DG-1009, December 1990
[3] Service (Salt) Water System Life Cycle Management Evaluation, EPRI Report No. TR-102204, April 1993
[4] Radiation Effects on Organic Materials in Nuclear Plants, EPRI Report No. NP-2129, November 1981
[5] Erosion / Corrosion in Nuclear Plant Steam Piping, EPRI Report No. NP-3944,1985
[6] Component Life Estimation: LWR Structural Materials Degradation Mechanisms, EPRI Report No. NP-5461,1987
[7] Environmental Effects on Components: Commentary for ASME Section ill, EPRI Report No. NP-5775, April 1988
[8] Boric Acid Corrosion of Carbon and Low Alloy Steel Pressure Boundary Materials, EPRI Report No. NP-5985,1988
[9] Nuclear Plant Service Water System Aging Degradation Assessment, NUREG/CR-5379, m Volume 1 and 2, June 1989 and October 1992 10] Aging Assessment of Instrunyant Air Systems, NUREG/CR-5419, January 1990 Q[11] Insights Gained from Aging Research, NUREG/CR-5643, March 1992
[12] Corrosion Engineering: Fontana and Greene,1978
[13] Corrosion and Cerrosion Control, An Introduction to Corrosion Science and Engineering, Uhlig, Third Edition,1985
[14] BOlBOR JF Fuel Fungicide Service Bulletin, U.S. Borax, No. 279
[15] A Survey of the Literature on Low-Alloy Steel Fastener Corrosion in PWR Power Plants, EPRI Report No. NP-3784,1984 O
Attachment 7 Page 11 of 11
r Component Aging Management Review LCM-16 l
Revision 4
( Attachment 3 Component Grouping Summary Sheet (Revision 1) Date: 04/11/96 SYSTEM: Diesel Fuel Oil (023)
GROUP ID NUMBER: 023-CKV-01 GROUP ATTRIBUTES:
- 1. Device Type: Check Valve
! 2. Vendor:
- 3. Model Number: Marks 223 and 238 l 4. Material:
l S. Internal Environment:
- 6. External Environment
- 7. Function: Maintain System Pressure Boundary Integrity
- 8. Name Plate Data:
PARAMETER VALUE l
LIST OF GROUPED COMPONENTS (EQUIPMENT ID):
h
%/
OCKV11-DFO-123*
OCKV11-DFO-136*
Engine FO CKV Engine FO CKV OCKV12-DFO-123* Engine FO CKV OCKV12-DFO-136* Engine FO CKV OCKV21-DFO-123* Engine FO CKV OCKV21-DFO-136* Engine FO CKV OCKVDFO-144 Emergency Suction CKV OCKVDFO-146 Number 1 Header CKV OCKVDFO-148 Number 2 Header CKV l
- Valves are located inside Diesel Generator building.
lO Attachment 3 3
i Page 1 of 1
~
O Component Aging Management Review O O LCM-16 Revision 4 Date: 4/11/96 Sub-Component /Sub-Group Identification (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL EQUIPMENT ID: VALVE GROUP ID: 023-CKV-01 DEVICE TYPE NAME: CHECK VALVE Subj to Sub-Component / Name Manufacturer Material Modst Number Passive Intended Function (s) AMR Sub-Group ID (Replacement Prgm) (Source) (Scurce) (Source) (Source) (Y or N) 023-CKV-01A BODY / BONNET N/A CAST A216 GR WCB OR MARK 223 AND MAINTAIN PRESSURE BOUNDARY INTEGRITY Y (NONE) (N/A) FORGED A105 CARBON 238 (CLSR)
STEEL (60736) t (92771) 023-CKV-01B BOLTS N/A BOLTS: A-193 GR B7 MARKS 223 AND MAINTAIN PRESSURE BOUNDARY INTEGRIfY Y '
(NONE) (N/A) (TYPICAL) 238 (CLSR)
(60736) 023-CKV-01C NUTS N/A NUTS: A-194 GR 2H MARKS 223 AND MAINTAIN PRESSURE BOUNDARY INTEGRITY Y (NONE) (N/A) (TYPICAL) 238 (CLSR)
(60736) 023-CKV-01D DISK & SEAT N/A N/A N/A NONE. NO LR INTENDED FUNCTION. N (NA) (N/A) (N/A) (N/A) COMPONENTIN LR SCOPE FOR PRESSURE BOUNDARY ONLY.
(CLSR) t i
Attachment 4 Page 1 of 1
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('i Component Aging Management Review LCM-16 l
'V Revision 4 ARDM Matrix (Revision 1) l SYSTEM NUMBER: 023 SYSTEM NAME: Diesel Fuel Oil 1 l
EQUIPMENT TYPE: VALVE DEVICE TYPE: CKV GROUP ID: 023-CKV-01 Date: March 27,1996 023- 023- 023- )
ARDMs CKV- CKV- CKV- !
01A 01B 01C Body Bolts Nuts Cavitation Erosion 02 19 19 I
Corrosion Fatigue 1? 12 12 Crevice Corrosion A A A Erosion Corrosion 02 19 19 Fatigue 12 12 12 Fouling 06 19 19 Galvanic Corrosion 07 07 07 General Corrosion A 01.3 A Hydrogen Damage 03 03 03 Intergranular Attack 01.1 01.3 01.1
- i MIC 08 08 08
's> Particulate Wear 05 19 19 Erosion Pitting A A A Radiation Damage 01.1 01.3 01.1 ;
Rubber Degradation 01.1 01.3 01.1 l Selective Leaching 01.1 01.3 01.1 l l
Stress 01.1 18 01.1 l Corrosion Cracking l Stress Relaxation 04 04 04 Thermal Damage 01.1 01.3 01.1 Thermal 04 04 04 Embrittlement Wear 16 16 16
?
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l Attachment 5 Page 1 of 1 l
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)
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l Component Aging Management Review LCM-16 g- Revision 4 i! j lV Matrix Code List (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL DEVICE TYPE: CKV EQUIPMENT TYPE: VALVE GROUP ID: 023-CKV-01 Date: 4/12/96 l Code Description Source 1
01 MATERIAL IS NOT APPLICABLE TO THE ARDM. MATERIAL OF ATTACHMENT 7 CONSTRUCTION IS NOT SUSCEPTIBLE TO THIS ARDM: 92771 01.1 CARBON STEEL j 01.3 ALLOY STEEL 02 PROCESS FLUID TYPE DOES NOT PERPETUATE THE ARDM. THE PROCESS ATTACHMENT 7 FLUID IS FUEL OIL WHICH IS NORMALLY NOT FLOWING. THE SYSTEM IS UFSAR 8.4.1.2 PERIODICALLY OPERATED AT LOW PRESSURES AND FLOW RATES, WHICH 92769HB SH HB-1 ARE NOT THE CONDITIONS NORMALLY ASSOCIATED WITH THIS ARDM M-0080 PG 8 (HIGH VELOCITY AND/OR RAPID PRESSURE VARIATIONS}.
(
03 PROCESS FLUID DOES NOT PERPETUATE THE ARDM ON THE INSIDE OF ATTACHMENT 7 THE VALVE. THE PROCESS FLUID IS FUEL OIL THE NORMAL HYDROGEN METALS HANDBK VOL 13 CONCENTRATION AND LOW PRESSURES ARE NOT SUFFICIENT TO MAKE ASTM A 216 HYDROGEN ATTACK OR BLISTERING PLAUStBLE. HYDROGEN CRACKING IS ASTM A 105 NOT A CONCERN FOR MATERIALS WITH YlELD STRESSES LESS THAN 120 ASTM A 193 KSI, WHICH IS THE CASE FOR THE VALVE BODY (YS=36 KSI) AND THE NP-5461 j
O N BOLTS (YS=105 KSI). GENERAL CORROSION, WHICH CAN LEAD TO CH-1-100 i 1 HYDROGEN DAMAGE,IS ADDRESSED AS A SEPARATE ARDM. NP-5769 i V NP-3137 l THE EXTERNAL ENVIRONMENT (AIR) DOES NOT CONTAIN SUFFICIENT BGE-96-031 HYDROGEN OR PRESSURE TO MAKE THIS ARDM PLAUSIBLE. MOLY DISULPHIDE LUBRICANTS ARE PERMITTED BY PROCEDURE TO BE USED ON NON-RESTRICTED SYSTEMS SUCH AS DFO. HOWEVER, MOLY DISULFIDE LUBRICANTS REQUIRE MOISTURE AND TEMPERATURE (>150F)
TO DECOMPOSE INTO HYDROGF.N SULFIDE. GIVEN THE DESIGN TEMPERATURE OF 100F, ANTICIPATED AMBIENT TEMPERATURES OF LESS THAN 150F, AND DRYING EFFGCTS OF WARMER TEMPERATURES, HYDROGEN DAMAGE DUE TO MOLY DISULFIDE LUBRICANTS IS NOT A CONCERN.
l WELD HYDROGEN EMBRITTLEMENT IS NOT A CONCERN FOR MILD CARBON STEEL WITH A YlELD STRENGTH IN THE RANGE OF 36-40 KSI.
! 04 PROCESS FLUID TEMPERATURE DOES NOT PERPETUATE THE ARDM. ATTACHMENT 7
! OPERATING TEMPERATURES LESS THAN 500*F ENSURE THIS ARDM IS NOT 92769 PLAUSIBLE (NORMALLY <100F). ES-014 05 PROCESS FLUID FLOW RATE DOES NOT PERPETUATE THE ARDM. ATTACHMENT 7 RELATIVELY LOW FLOW VELOCITIES ARE NOT LIKELY TO ENTRAIN CP-226 DAMAGING PARTICULATES. THE CLEAN SYSTEM CONTAINS INSIGNIFICANT UFSAR 8.4.1.2 PARTICULATE MATTER. M-0080 PG8 Og
\.v/
Attachment 6 Page 1 of 3
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Component Aging Management Review LCM-16 Revision 4 lw/ Matrix Code List (Revision 1) l l SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL DEVICE TYPE: CKV. EQUIPMENT TYPE: VALVE l GROUP ID: 023-CKV-01 Date: 4/12/96 Code Description Source 06 PROCESS FLUID CHEMISTRY AND ENVIRONMENT DO NOT PERPETUATE ATTACHMENT 7 THE ARDM; M-216 CP-226 FOULING iS NOT PLAUStBLE. THE FLUID IS FUEL OIL. THE STORAGE TANK 12329-0005 I
FUEL IS TESTED FOR THE PRESENCE OF BIOLOGICS AND IS TREATED I WITH A CORROSIVE INHIBITOR. THE SYSTEM TAKES SUCTION ABOVE THE l BOTTOM OF THE FUEL OIL TANKS (THE LOWEST NOZZLE BEING 8" ABOVE THE TANK BO1 TOM), WHICH M! NIM 12ES CARRY OF SLUDGE INTO THE PlPES. THE FUEL OIL ITSELF KEEPS CORROSION PRODUCTS TO A
- MINIMUM ON THE INSIDE SURFACE OF THE VALVES. THEREFORE, THIS
! ARDM IS NOT PLAUSIDLE ON THE VALVE INTERNALS. FOULING IS NOT A CONCERN FOR VALVE EXTERNALS.
l 07 MATERIAL SELECTION / SEPARATION DOES NOT PERPETUATE THE ARDM. ATTACHMENT 7
! MATERIALS USED THROUGHOUT THE SYSTEM GENERALLY HAVE LOW 92771 POTENTIAL DIFFERENCES ANO,WHERE APPROPRIATE, ARE SEPARATED BY APPROPRIATE TRANSITION MATERIALS.
! (p%./
f 08 PROCESS FLUID CHEMISTRY AND ENVIRONMENT DO NOT PERPETUATE THE ARDM:
ATTACHMENT 7 CP-226 PEO-0-023-2-0-M l MIC 13 NOT PLAUStBLE. THE FLUID IS FUEL OIL. THE STORAGE TANK FUEL U-96-001(BIOBOR)
! IS TESTED QUARTERLY FOR THE PRESENCE OF BIOLOGICS. THE SYSTEM C-96-003 (CUMMINS) l TAKES SUCTION ABOVE THE BOTTOM OF THE FlJEL OIL TANKS, WHERE HISTORICAL
- Y SLUDGE AND MICROBE GROWTH HAS OCCURRED. THIS
! MINIMlZES THE POSSIBILITY OF TRANSFERRING MICROBES IN10 THE l PIPING SYSTEM ITSELF. WATER INTRODUCED TO THE TANK TEND 3 TO l SINK TO THE BOTTOM AND IS PERIODICALLY DRAINED, THEREBY l PREVENTING WATER FROM BEING DRAWN INTO THE SYSTEM PlPING. THE l FUEL IS REGULARLY TESTED TO ASSURE THE FUEL CONTAINS LESS THAN i 0.05% WATER BY VOLUME. THE LACK OF WATER IN THE SYSTEM PIPES
! PREVENTS SIGNIFICANT MICROBIOLOGICAL GROWTH. THEREFORE, THIS ARDM IS NOT PLAUSIBLE FOR THE VALVE INTERNALS. MIC IS ALSO NOT PLAUSIBLE FOR VALVE EXTERNALS. THE 1ACK OF CONSISTENT STAGNANT WATER ON EXPOSED PIPE SURFACES PREVENTS SIGNIFICANT MICROBIOLOGICAL GROWTH.
12 SERVICE LOADING AMPLITUDES / FREQUENCIES DO NOT PERPETUATE THE ATTACHMENT 7 ARDM. THE SYSTEM IS NOT CYCLED FREQUENTLY AND OPERATES AT 92769HB SH HB-1 LOW PRESSURE AND TEMPERATURES MAKING THIS ARDM NOT PLAUStBLE. 01-21,01-21D 16 WEAR IS NOT A PLAUSIBLE ARDM SINCE THE PRESSURE BOUNDARY ATTACHMENT 7 SUBCOMPONENTS ARE DESIGNED TO ELIMINATE ANY RELATIVE MOTION 92771 BETWEEN THE PARTS. THE BODY, BOLTS AND NUTS ARE ASSEMBLED INTO ONE RIGID PRESSURE BOUNDARY COMPONENT. THERE IS NO RELATIVE MOVEMENT BETWEEN THESE PARTS. THE MOVEMENT OF THE PLUG WILL CAUSE LIMITED INTERNAL WEAR OVER TIME. HOWEVER, THE FUNCTION TO PREVENT REVERSE FLOW WILL REQUIRE CORRECTIVE ACTION LONG BEFORE THE PB INTEGRITY FUNCTION IS CHALLENGED.
4 O
I Attachment 6 Page 2 of 3
. .~ . - . - -.-....-~-.- - -..._. --.-- . - - - - - . . - - , . -. ~ _-
Component Aging Management Review LCM-16 Revision 4 j Matrix Code List (Revision 1)
SYSTEM NUMBER: 023- SYSTEM NAME: DIESEL FUEL OIL l
DEVICE TYPE: CKV EQUIPMENT TYPE: . VALVE <
t GROUP 10: 023-CKV-O' Date: 4/12/96 '
l Code Description Source
, )
18 COMPONENT MATERIAL AND ENVIRONMENT DO NOT PERPETUATE THE ATTACHMENT 7 ARDM: LCM 95-112 A193 GR B7 BOLTING MATERIAL IS RESISTANT TO MOST FORMS OF STRESS CORROSION CRACKING, PARTICULARLY CHLORIDE STRESS CORROSION CRACKING. THE INDUSTRY ISSUE RELATING TO STRESS ;
CORROSION CRACKING PROMOTED BY BORIC ACID AND DECOMPOSITION OF THREAD LUBRICANTS CONTAINING MOLY-DISULFIDE DOES NOT APPLY TO THIS SYSTEM, AS THE SYSTEM DOES NOT CONTAIN BORIC ACID.
19 COMPONENT ENVIRONMENT DOES NOT PERPETUATE THE ARDM. THE ATTACHMENT 7 SUBCOMPONENTS TYPICALLY ARE NOT EXPOSED TO THE PROCESS FLUID WHICH MAKES THE ARDM NON PLAUSIBLE.
l A THE ARDM IS PLAUSIBLE BECAUSE THE EXTERNAL CARBON STEEL AND ATTACHMENT 7 ALLOY FASTENER MATERIALS ARE EXPOSED TO HUMID, MOIST OR WET CP-226 ENVIRONMENTS. THE VALVES ARE PROTECTED FROM DIRECT AFFECTS PEO-0 023-2-0 OF SUN AND WEATHER BY A CONCRETE ENCLOSURE OR PIT WITH A 60484 SH0001 COVER. HOWEVER, THE STEEL SURFACES ARE STILL EXPOSED TO 63548 SH0007 ,
CHANGES IN HUMIDITY AND TEMPERATURES, REQUIRING THE OFSAR 9.8.2.3 )
(/ PROTECTION OF PAINT.
AGING MANAGEMENT RECOMMENDATIONS:
(1) PERIODICALLY INSPECT PAINT AND REPAIR AS REQUIR'ED.
GENERAL, CREVICE AND PITTING CORROSION ARE NOT PLAUSIBLE FOR ,
l EXTERNAL SURFACES OF VALVES LOCATED INSIDE THE DIESEL GENERATOR BUILDING. THESE VALVES ARE MARKED WITH AN "'" ON '
ATTACHMENT 3. THE DIESEL GENERATOR BUILDING PROVIDES PROTECTf0N FROM WEATHER, AND THE VENTILATION SYSTEM MAINTAINS MODERATE AMBIENT CONDITIONS WHICH WILL NOT CAUSE SIGNIFICANT DEGRADATION OF THE PAINT OR EXPOSED CARBON STEEL SURFACES.
GENERAL, CREVICE AND PITTING CORROSION ARE NOT PLAUSIBLE FOR VALVE INTERNALS. THE FLUID IS FUEL OIL IT IS TESTED AND TREATED WITH CORROSlVE INHIBITOR. THE FUEL DOES NOT CONTAIN SUFFICIENT OXYGEN TO PRODUCE A CONCENTRATION CELL WATER INTRODUCED TO THE TANK TENDS TO SINK TO THE BOTTOM AND IS DRAINED PERIODICALLY, PREVENTING WATER FROM BEING DRAWN INTO THE '
SYSTEM PIPING. THE FUEL IS REGULARLY TESTED TO ASSURE THE FUEL CONTAINS LESS THAN 0.05% WATER BY VOLUME. THE LACK OF WATER IN '
THE SYSTEM PIPES PREVENTS SIGNIFICANT CORROSION OF THE CARBON STEEL VALVES DUE TO WATER.
L. ,
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'O Attachment 6 Page 3 cf 3 l-
Component Aging Management Review LCM-16 Revision 4 O
V Attachment 3 Component Grouping Summary Sheet (Revision 1) Date: 04/12/96 SYSTEM: Diesel Fuel Oil (023)
GROUP ID NUMBER: 023-HV-01 GROUP ATTRIBUTES:
- 1. Device Type: Hand Valve
- 2. Vendor:
- 3. Model Number: Marks 19,29 and 130 (Ref. 60736,60484,FSK-MP-488, Critical Design Criteria) !
- 4. Material:
- 5. Internal Environment:
- 6. External Environment: i
- 7. Function: Maintain System Pressure Boundary integrity
- 8. Name Plate Data:
PARAMETER VALUE LIST OF GROUPED COMPONENTS (EQUIPMENT ID):
O OHVOC-DFO-037 Fuel Oil Xfer Line Isol to SBO Bldg OHV0C-DFO-054 Fuel Oil Xfer Line Sample Connection OHVOC-DFO-151 Portable Pump Connection OHV11-DFO 121* Engine FO Isolation ;
OHV11-DFO 122* Engine FO Isolation !
OHV12-DFO 121* Engine FO Isolation ;
OHV12-DFO 122* Engine FO Isolation '
OHV21-DFO 121* Engine FO lsolation OHV21-DFO 122* Engine FO lsolation OHVDFO-100 11 FOST to #1 Header OHVDFO-101 11 FOST Fill & #2 Header OHVDFO-102 11 FOST Fill to Aux Boilers isolation OHVDFO-1020 LS 6402 Root OHVDFO-1022 LS 6402 Root OHVDFO-1024 LS 6400 Root OHVDFO-1026 LS 6400 Root i OHVDFO-103 11 FOST Lo Point Drain & Sample OHVDFO-1031 LS 6403 Root OHVDFO-1033 LS 6403 Root OHVDFO-1035 LS 6405 Root OHVDFO-1037 LS 6405 Root OHVDFO-106 21 FOST to #1 Header OHVDFO-107 21 FOST Fill & #2 Header OHVDFO-108 21 FOST to Aux Boilers Isolation O OHVDFO-109 OHVDFO-115 21 FOST Lo Point Drain & Sample Unloading Bypass & Fill Attachment 3 Page 1 of 2
Component Aging Management Review LCM-16 ,
Revision 4 V Attachment 3 Component Grouping Summary Sheet (Revision 1) Date: 04/12/96 SYSTEM: Diesel Fuel Oil (023)
GROUP ID NUMBER: 023-HV-01
- OHVDFO-119 FO Unloading Pump Discharge
- OHVDFO-128 Portable Pump Connection isolation l OHVDFO-129 Portable Pump Connection isolation i OHVDFO-133 Aux Steam Generator Supply OHVDFO-135* Aux Steam Generator FO PP Supply OHVDFO-145 11 FOST to #1 Header B/U l OHVDFO-147 11 FOST to #2 Header B/U !
OHVDFO-149* Aux Bir Emergency Shutoff l i OHVDFO-166 Aux Boiler Header Drain l I i l \
- Valves are located inside Diesel Generator or Turbine buildings.
ormvos ooc j l
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.O Attachment 3 Page 2 of 2
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f)V t v d Component Aging Management Review LCM-16 Revision 4 -
Date: 4/11/96 Sub-Component /Sub-Group identification (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL EQUIPMENT ID: VALVE GROUP ID: 023-HV-01 DEVICE TYPE NAME: MANUAL VALVE Subi to Sub-Component / Name Manufacturer Material Model Number Passive intended Function (s) AMR Sub-Group ID (Replacement Prgm) (Source) (Source) (Source) (Source) (Y or N) 023-HV-01A BODv/ BONNET N/A CAST A216 GR WCB OR MARKS 19,29,130 MAINTAIN PRESSURE BOUNDARY INTEGRITY Y (NONd) (N/A) FORGED A105 CARBON (SEE ATTACH 3) (CLSR)
STEEL (92771) 023-HV-01B BOLTS N/A BOLTS: A-193 GR B7 MARKS 19,29,130 MAINTAIN PRESSURE BOUNDARY INTEGRITY Y (NONE) (N/A) (TYP: CAL) (SEE ATTACH 3) (CLSR) 023-HV-01C NUTS N/A NUTS: A-194 GR 2H MARKS 19,29,130 MAINTAIN PRESSURE BOUNDARY INTEGRITY Y (NONE) (N/A) (TYPICAL) (SEE ATTACH 3) (CLSR) 023-HV-01D DISK & SEAT N/A N/A N/A NONE. NO LR INTENDED FUNCTION. N (NA) (N/A) (N/A) (N/A) COMPONENT IN LR SCOPE FOR PI 'SSURE BOUNDARY ONLY.
(CLSR) 023-HV-01E STEM N/A ALLOY STEEL MARKS 19,29,130 MAINTAIN PRESSURE BOUNDARY INTEGRITY Y (NONE) (N/A) (TYPICAL) (SEE ATTACH 3) (CLSR)
Attachment 4 Page 1 of 1
i O Component Aging Management Review LCM-16 V , Revision 4 ARDM Matrix (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: Diesel Fuel Oil EQUlPMENT TYPE: VALVE DEVICE TYPE: HV l GROUP ID: 023-HV-01 Date: March 27,1996 023-HV- 023-HV- 023-HV- 023-HV-ARDMs 01A 01B 01C 015 Body Studs Nuts Stem j Cavitation Erosion 02 19 19 02 l Corrosion Fatigue 12 12 12 12 l Crevice Corrosion A A A A Erosion Corrosion 02 19 19 02 Fatigue 12 12 12 12 Fouling 06 19 19 06 i Galvanic Corrosion 07 07 07 07 l General Corrosion A 01.3 A A
! Hydrogen Damage 03 03 03 03 Intergranular Attack 01.1 01.3 01.1 01.3 l
MIC 08 08 08 08 Particulate Wear 05 19 19 05 Erosion V Pitting A A A A Radiation Damage 01.1 01.3 01.1 01.3 Rubber Degradation 01.1 01.3 01.1 01.3 l Selective Leaching 01.1 01.3 01.1 01.3 l Stress 01.1 18 01.1 01.3 l Corrosion Cracking '
Stress Relaxation 04 04 04 04 Thermal Damage 01.1 01.3 01.1 01.3 j Thermal 04 04 04 04 Embrittlement Wear 16 16 16 15 l
I O
Attachment 5 Page 1 of 1 i
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Component Aging Management Review LCM-16 Revision 4 I$
Matrix Code List (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL DEVICE TYPE: HV EQUIPMENT TYPE: VALVE GROUP ID: 023-HV-01 Date: 4/12/96 Code Description Source 01 MATERIAL IS NOT APPLICABLE TO THE ARDM. MATERIAL OF ATTACHMENT 7 CONSTRUCTION IS NOT SUSCEPTIBLE TO THIS ARDM; 92771 01.1 CARBON STEEL ,
01.3 ALLOY STEEL l 02 PROCESS FLUID TYPE DOES NOT PERPETUATE THE ARDM. THE PROCESS ATTACHMENT 7 FLUID IS FUEL OIL WHICH IS NORMALLY NOT FLOWING. THE SYSTEM IS UFSAR 8.4.1.2 PERIODICALLY OPERATED AT LOW PRESSURES AND FLOW RATES, WHICH 92769HB SH HB-1 ARE NOT THE CONDITIONS NORMALLY ASSOCIATED WITH THIS ARDM M-0080 PG 8 (HIGH VELOCITY AND/OR RAPID PRESSURE VARIATIONS). OI-21D ALTHOUGH THE SYSTEM OPERATING CONDITIONS MINIMlZE CAVITATION POSSIBILITY AND DURATION, THERE IS ONE PORTION OF THE SYSTEM WITH THE POTENTIAL FOR CAVITATION. DURING SYSTEM OPERATION THE UNLOADING PUMPS (WHICH ARE NOT IN LR SCOPE) MAY SEE LOW NPSH.
ACCORDING TO OPERATING PROCEDURE OI-21D VALVE OHVDFO-119 (IN LR SCOPE)IS MANUALLY THROTTLED TO PREVENT CAVITATION AT THE PUMP. THIS MANUAL OPERATION ASSURES THE PUMP, THROTTLING j VALVE AND DOWNSTREAM PIPING WILL NOT EXPERIENCE CAVITATION.
03 PROCESS FLUID DOES NOT PERPETUATE THE ARDM ON THE INSIDE OF ATTACHMENT 7 THE VALVE. THE PROCESS FLUID IS FUEL OIL. THE NORMAL HYDROGEN METALS HANDBK VOL 13 CONCENTRATION AND LOW PRESSURES ARE NOT SUFFICIENT TO MAKE ASTM A 216 HYDROGEN ATTACK OR BLISTERING PLAUSIBLE. HYDROGEN CRACKING IS ASTM A 105 NOT A CONCERN FOR MATERIALS WITH YlELD STRESSES LESS THAN 120 ASTM A 193 KSI, WHICH IS THE CASE FOR THE VALVE BODY (YS=36 KSI) AND THE NP-5461 BOLTS (YS=105 KSI). GENERAL CORROSION, WHICH CAN LEAD TO CH-1-100 HYDROGEN DAMAGE,IS ADDRESSED AS A SEPARATE ARDM. NP-5769 NP-3137 THE EXTERNAL ENVIRONMENT (AIR) DOES NOT CONTAIN SUFFICIENT BGM-96-031 HYDROGEN OR PRESSURE TO MAKE THIS ARDM PLAUSIBLE. MOLY j DISULPHIDE LUBRICANTS ARE PERMITTED BY PROCEDURE TO BE USED ON NON-RESTRICTED SYSTEMS SUCH AS DFO. HOWEVER, MOLY DISULFIDE LUBRICANTS REQUIRE MOISTURE AND TEMPERATURE (>G0F)
TO DECOMPOSE INTO HYDROGEN SULFIDE. GIVEN THE DESIGN TEMPERATURE OF 100F, ANTICIPATED AMBIENT TEMPERATURES OF LESS THAN 150F, AND DRYING EFFECTS OF WARMER TEMPERATURES, HYDROGEN DAMAGE DUE TO MOLY DISULFIDE LUBRICANTS IS NOT A CONCERN.
WELD HYDROGEN EMBRITTLEMENT IS NOT A CONCERN FOR MILD CARBON STEEL WITH A YlELD STRENGTH IN THE RANGE OF 36-40 KSI.
04 PROCESS FLUID TEMPERATURE DOES NOT PERPETUATE THE ARDM. ATTACHMENT 7 OPERATING TEMPERATURES LESS THAN 500*F ENSURE THIS ARDM IS NOT 92769 PLAUSIBLE (NORMALLY <100F). ES-014 Attachment 6 Page 1 of a
Component Aging Management Review LCM-16 Revision 4 p
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Matrix Code List (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL DEVICE TYPE: HV EQUIPMENT TYPE: VALVE GROUP ID: 023-HV Date: 4/12/96 Code Description Source 05 PROCESS FLUID FLOW RATE DOES NOT PERPETUATE THE ARDM. ATTACHMENT 7 REl.ATIVELY LOW FLOW VELOCITIES ARE NOT LIKELY TO ENTRAIN CP-226 DAMAGING PARTICULATES. THE CLEAN SYSTEM CONTAINS INSIGNIFICANT UFSAR 8.4.1.2 PARTICULATE MATTER. M-0080 PG8 06 PROCESS FLUID CHEMISTRY AND ENVIRONMENT DO NOT PERPETUATE ATTACHMENT 7 THE ARDM: M-216 CP-226 FOULING IS NOT PLAUS!BLE. THE FLUID IS FUEL OIL. THE STORAGE TANK 12329-0005 FUEL IS TESTED FOR THE PRESENCE OF BIOLOGICS AND IS TREATED WITH A CORROSIVE INHIBITOR. THE SYSTEM TAKES SUCTION ABOVE THE BOTTOM OF THE FUEL OIL TANKS (THE LOWEST NOZZLE BEING 8" ABOVE THE TANK BOTTOM), WHICH MINIMlZES CARRY OF SLUDGE INTO THE PIPES. THE FUEL OIL ITSELF KEEPS CORROSION PRODUCTS TO A MINIMUM ON THE INSIDE SURFACE OF THE VALVES. THEREFORE, THIJ ARDM IS NOT PLAUSIBLE ON THE VALVE INTERNALS. FOULING IS NOT A CONCERN FOR VALVE EXTERNALS, s 07 MATERIAL SELECTION / SEPARATION DOES NOT PERPETUATE THE ARDM. ATTACHMENT 7 l i MATERIALS USED THROUGHOUT THE SYSTEM GENERALLY HAVE LOW 92771 !
) POTENTIAL DIFFERENCES AND,WHERE APPROPRIATE, ARE SEPARATED BY APPROPRIATE TRANSITION MATERIALS.
08 PROCESS FLUID CHEMISTRY AND ENVIRONMENT DO NOT PERPETUATE ATTACHMENT 7 THE ARDM: CP-226 PEO-0-023-2-0 M MIC IS NOT PLAUSIBLE. THE FLUID IS FUEL OIL. THE STORAGE TANK FUEL U-96-001(BIOBOR)
IS TESTED QUARTERLY FOR THE PRESENCE OF BIOLOGICS. THE SYSTEM C 96-003 (CUMMINS)
TAKES SUCTION ABOVE THE BOTTOM OF THE FUEL OIL TANKS, WHERE HISTORICALLY SLUDGE AND MICROBE GROWTH HAS OCCURRED. THiS j MINIMlZES THE POSSIBILITY OF TRANSFERRING MICROBES INTO THE i PIPING SYSTEM ITSELF. WATER INTRODUCED TO THE TANK TENDS TO SINK TO THE BOTTOM AND IS PERIODICALLY DRAINED, THEREBY j PREVENTING WATER FROM BEING DRAWN INTO THE SYSTEM PIPING. THE FUEL IS REGULARLY TESTED TO ASSURE THE FUEL CONTAINS LESS THAN 0.05% WATER BY VOLUME. THE LACK OF WATER IN THE SYSTEM PIPES PREVENTS SIGNIFICANT MICROBIOLOGICAL GROWTH. THEREFORE, THIS ARDM iS NOT PLAUSIBLE FOR THE VALVE INTERNALS. MIC IS ALSO NOT PLAUSIBLE FOR VALVE EXTERNALS. THE LACK OF CONSISTENT STAGNANT WATER ON EXPOSED PIPE SURFACES PREVENTS SIGNIFICANT MIC3OBIOLOGICAL GROWTH.
12 SERVICE LOADING AMPLITUDES / FREQUENCIES DO NOT PERPETUATE THE ATTACHMENT 7 ARDM. THE SYSTEM IS NOT CYCLED FREQUENTLY AND OPERATES AT 92769HB SH HB-1 LOW PRESSURE AND TEMPERATURES MAKING THIS ARDM NOT PLAUSIBLE. 01-21,01-21D O Attachment 6 Page 2 of 4
l 1
j Component Aging Management Review LCM-16 )
Revision 4 I
.O i U Matrix Code List (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL DEVICE TYPE: HV EQUIPMENT TYPE: VALVE GROUP ID: 023-HV-01 Date: 4/12/96 j 1
Code Description Source 15 ARDMS DO NOT SIGNIFICANTLY AFFECT COMPONENT FUNCTION. ATTACHMENT 7 ,
92771 l WEAR DOES NOT SIGNIFICANTL Y AFFECT COMPONENT INTENDED l FUNCTION. VALVE OPERATION RESULTS IN STEWPACKING CONTACT IN l RELATIVE MOTION AND POTENTIALLY ABRASIVE WEAR. IF PACKINGS LEAK, IT WILL BE MINOR (MINIMAL IMPACT ON INTENDED FUNCTION) AND DETECTABLE DURING VALVE OPERATION /)NSPECTION.
16 WEAR IS NOT A PLAUSIBLE ARDM SINCE THE PRESSURE BOUNDARY ATTACHMENT 7 SUBCOMPONENTS ARE DESIGNED TO ELIMINATE ANY RELATIVE MOTION 92771 BETWEEN THE PARTS. THE BODY BOLTS AND NUTS ARE ASSEMBLED INTO ONE RIGID PRESSURE BOUNDARY COMPONENT. THERE IS NO RELATIVE MOVEMENT BETWEEN THY.SE PARTS.
18 COMPONENT MATERIAL AND ENVIRONMENT DO NOT PERPETUATE THE ATTACHMENT 7 ARDM; LCM 95-112 BOLTING MATERIAL IS A193 GR B7, WHICH IS RESISTANT TO MOST FORMS OF STRESS CORROSION CRACKING, PARTICULARLY CHLORIDE STRESS pl CORROSION CRACKING. THE INDUSTRY ISSUE RELATING TO STRESS
(% ) CORROSION CRACKING PROMOTED BY BORIC ACID AND DECOMPOSITION OF THREAD LUBRICANTS CONTAINING MOLY-DiSULFIDE DOES NOT APPLY TO THIS SYSTEM, AS THE SYSTEM DOES NOT CONTAIN BORIC ACID.
19 COMPONENT ENVIRONMENT DOES NOT PERPETUATE THE ARDM. THE ATTACHMENT 7 SUBCOMPONENTS TYPICALLY ARE NOT EXPOSED TO THE PROCESS FLUID WHICH MAKES THE ARDM NON-PLAUSIBLE.
O Attachment 6 Page 3 of 4 l
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Component Aging Management Review LCM-16 i Revision 4 I \
V Matrix Code List (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL DEVICE TYPE: HV EQUIPMENT TYPE: VALVE GROUP ID: 023-HV-01 Date: 4112/96 Code Description Source A THE ARDM IS PLAUSIBLE BECAUSE THE EXTERNAL CARBON STEEL AND ATTACHMENT 7 ALLOY FASTENER MATERIALS ARE EXPOSED TO HUMID, MOIST OR WET CP-226 ENVIRONMENTS. SUN AND WEATHER WILL DETERIORATE THE PEO-0-023-2-0 PROTECTIVE PAINT COATING OF THE EXPOSED VALVES AND LEAD TO USFAR 9.8.2.3 ACCELERATED CORROSION MECHANISMS OF STEEL COMPONENTS ES-014 EXPOSED TO MOfSTURE. SOME VALVES ARE PROTECTED FROM DIRECT 60484SH0001 AFFECTS OF SUN AND WEATHER BY A CONCRETE ENCLOSURE.
HOWEVER, THE STEEL SURFACES ARE STILL EXPOSED TO CHANGES IN HUMIDITY AND TEMPERATURES, REQUIRING THE PROTECTION OF PAINT.
AGING MANAGEMENT RECOMMENDATIONS:
(1) PERIODICALLY INSPECT PAINT AND REPAIR AS REQUIRED.
GENERAL, CREVICE AND PITTING CORROSION ARE NOT PLAUSIBLE FOR EXTERNAL SURFA.CES OF VALVES LOCATED INSIDE THE DIESEL GENERATOR OR TURBINE BUILDINGS. THESE VALVES ARE MARKED WITH AN "" ON ATTACHMENT 3. THESE BUILDINGS PROVIDE PROTECTION FROM ,
WEATHER, AND THE VENTILATION SYSTEMS MAINTAIN MODERATE '
, f'~ AMBIENT CONDITIONS WHICH WILL NOT CAUSE SIGNIFICANT l
(} DEGRADATION OF THE PAINT OR EXPOSED CARBON STEEL SURFACES.
GENERAL, CREVICE AND PITTING CORROSION ARE NOT PLAUSIBLE FOR VALVE INTERNALS. THE FLUID IS FUEL OIL IT IS TESTED AND TREATED WITH CORROSIVE INHIBITOR. THE FUEL DOES NOT CONTAIN SUFFICIENT l OXYGEN TO PRODUCE A CONCENTRATION CELL WATER INTRODUCED TO l THE TANK TENDS TO SINK TO THE BOTTOM AND IS DRAINED PERIODICALLY, PREVENTING WATER FROM BEING DRAWN INTO THE SYSTEM PIPING. THE FUEL IS REGULARLY TESTED TO ASSURE THE FUEL CONTAINS LESS THAN 0.05% WATER BY VOLUME. THE LACK OF WATER IN THE SYSTEM PIPES PREVENTS SIGNIFICANT CORROSION OF THE CARBON STEEL VALVES DUE TO WATER.
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Attachment 6 Page 4 of 4 l
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i Compon:nt Aging Manag:m:nt Review LCM-16 Revision 4 SYSTEM: 023, Diesel Fuel Oil O
U EQUIPMENTTYPE: ACCUMU Potential ARDM List (Revision 1)
Date: March 27,1996 ARDM POTENTIAL DESCRIPTION / JUSTIFICATION SOURCE Cavitation No Not applicable to equipment type. Cavitation erosion is localized [7]
Erosion material erosion caused by formation and collapse of vapor bubbles in close proximity to material surface. Requires fluid (liquid) flow and pressure variations which temporarily drop the liquid pressure below the corresponding vapor pressure. Vented tanks are not subject to such flow and pressure variations.
l l Corrosion No Not applicable to equipment type. Plant equipment operating in a [7]
Fatigue corrosive environment subjected to cyclic (fatigue) loading may initiate cracks and/or fail sooner than expected based on analysis of the corrosion and fatigue loadings applied separately.
Fatigue-crack initiation and growth usually follows a transgranular path, although there are some cases where intergranular cracking has been observed. In some cases, crack initiation occurs by fatigue and is subsequently dominated by corrosion advance. In other cases, a corrosion mechanism (SCC) can be responsible for crack formation below the fatigue threshold, and the fatigue mechanism can accelerate the crack propagation.
, Corrosion-fatigue is a potentially active mechanism in both
/ \ stainless steels as well as carbon and low alloy steels. However, l V since tanks are not subjected to pressure and flow oscillations, or to significant temperature fluctuations, they are not subject to this ARDM.
Creep / No Not applicable to Equipment Type. The phenomenon results in [2]
Shrinkage dimensional changes in metals at high temperatures and in l
cencrete subject to long term dehydration. This ARDM is not applicable to this equipment type since proper component i specification and design prevents this ARDM from occuring (i.e.,
system and component design standards adequately address this l ARDM).
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Attachment 7 Page 1 of 11
I Compon:nt Aging M: nag m:nt Rsvi:w LCM-16 Revision 4
, SYSTEM: 023, Diesel Fuel Oil
\ EQUIPMENT TYPE: ACCUMU Date: March 27,1996 Crevice Yes Crevice corrosion is intense, localized corrosion within crevices or [6]
Corrosion shielded areas. It is associated with a small volume of stagnant [7]
solution caused by holes, gasket surfaces, lap joints, crevices (12]
under bolt heads, surface deposits, designed crevices for attaching thermal sleeves to safe-ends, and integral weld backing rings or back-up bars. The crevice must be wide enough to permit liquid entry and narrow enough to maintain stagnant conditions, typically a few thousandths of an inch or less. Crevice corrosion is closely related to pitting corrosion and can initiate pits in many cases as well as leading to stress corrosion cracking. In an oxidizing environment, a crevice can set up a differential aeration cell to concentrate an acid solution within the crevice. Even in a reducing environment, alternate wetting and drying can concentrate aggressive ionic species to cause pitting, crevice corrosion, intergranular attack, or stress corrosion cracking.
Erosion No Not applicable to equipment type. Erosion corrosion is increased [5] i Corrosion rate of attack on a metal because of the relative movement (6] l between a corrosive fluid and the metal surface. Mechanical wear [7] l or abrasion can be involved, characterized by grooves, gullies, l waves, holes and valleys on the metal surface. Erosion is a mechanical action of a fluid and/or particulate matter on a metal O surface, without the influence of corrosion. Erosion corrosion O failures can occur in a relatively short time ana are sometimes unexpected, since corrosion tests are usually run under static conditions. The occurrence of erosion corrosion is highly dependent upon material of construction and the fluid flow conditions. Carbon or low alloy steels are particularly susceptible when in contact with high velocity water (single or two phase) with turbulent flow, low oxygen and fluid pH < 9.3. Maximum erosion corrosion rates are expected in carbon steel at 130-140*C (single phase) and 180'C (two phase). This ARDM is therefore not applicable to tanks as flow into or out of a tank is relatively infrequent and flow rates are low.
Attachment 7 Page 2 of 11
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l Compon:nt Aging Minng m:nt Rsvi:w LCM-16 Revision 4 i SYSTEM: 023, Diesel Fuel Oil P ential ARDM t.ist(Revision 1)
EQUIPMENT TYPE: ACCUMU Date: March 27,1996 Fatigue Yes Fatigue damage results from progressive, localized structural [6]
change in materials subjected to fluctuating stresses and strains. [7]
Associated failures may occur at either high or low cycles in [2]
response to various kinds of loads (e.g., Mechanical or vibrational loads, thermal cycles, or pressure cycles). Fatigue cracks initiate and propagate in regions of stress concentration that intensify strain. The fatigue life of a component is a function of several l variables such as stress level, stress state, cyclic wave form, j fatigue environment, and the metallurgical condition of the material. Failure occurs when the endurance limit number of cycles (for a given load amplitude) is exceeded. All materials are i susceptible (with varying endurance limits) when subjected to l cyclic loading. Vibration loads have also been the cause of l recurring weld failures by the fatigue of small socket welds.
Certain piping locations, such as charging lines, have been found to experience vibration conditions. In some cases these failures in pipe have been due to inadequately supported pipe or obturator induced vibratory loads.
Fouling Yes Unavoidable introduction of foreign substances that interact with [9]
and/or collect within system and components. Caused by failure [10]
, or degradation of upstream removal process equipment, long term [11]
/D buildup, low flow, stagnant flow, infrequent operation, and/or U contaminated inlet flow. Fouling refers to all deposits on system surfaces that increase resistance to fluid flow and/or heat transfer.
Sources of fouling include the following: (1) organic films of micro-organisms and their products (microbial fouling) (2) deposits of macro-organisms such as mussels (macrobial feuling)
(3) inorganic deposits, including scales, silt, corrosion products and detritus. Scales result when solubility limits for a given species are exceeded. Deposits result when coolant-borne particles drop onto surfaces due to hydraulic factors. The deposits result in reduced flow of cooling water, reduced heat transfer, and increased corrosion. Sediment deposits promote concentration cell corrosion and growth of sulfur-reducing bacteria. The bacteria ,
can cause severe pitting after one month of service. Piping l systems designed for 30 years have had their projected life reduced to five years due to under-sediment corrosion.
Galvanic Yes Accelerated corrosion caused by dissimilar metals in contact in a [12)
Corrosion conductive solution. Requires two dissimilar metals in physical or electrical contact, developed potential (material dependent), and conducting solution, O)
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Attachment 7 Page 3 of 11
l Componrnt Aging Manag::m:nt Ravi:w LCM-16 Revision 4 l
,_s SYSTEM: 023, Diesel Fuel Oil l Potential ARDM List (Revision 1) I
('") EQUIPMENT TYPE: ACCUMU Date: March 27,1996 General Yes Thinning (wastage) of a metal by chemical attack (dissolution) at [7]
Corrosion the surface of the metal by an aggressive environment. The [8]
consequences of the damage are loss of load carrying [2]
cross-sectional area. General corrosion requires an aggressive [16]
environment and materials susceptible to that environment. An important concern for PWRs is boric acid attack of carbon steels.
Borated water has been observed to leak from piping, valves, !
storage tanks, etc., And fall on other carbon steel components and I attack the component from the outside. Wastage is not a concern I for austenitic stainless steel alloys.
Hydrogen Yes Two forms of hydrogen attack relevant to light water reactor (6] l Damage materials and conditions are hydrogen blistering and hydrogen (7]
embrittlement. Both produce mechanical damage in the affected l component. In each case, atomic hydrogen enters the metal, i either as a result of a corrosion reaction at the surface or by cathodic polarization which results in the evolution of hydrogen gas, in blistering, interstitial atomic hydrogen is combined into molecular hydrogen within the metal, causing high pressure and local damage in the form of " blistered" regions of the metal . .
surface. Hydrogen embrittlement affects ferritic and martensitic l iron-based alloys, and results in low ductility intergranular cracking (
/ (similar to stress corrosion cracking). The phenomenon of V) hydrogen cracking is usually manifested as delayed cracking, at or near room temperature, after stress is applied. A certain critical stress, which may take the form of weld residual stress, is required to cause cracking. Notches concentrate such stresses and tend to shorten the delay time for cracking. Cracking of welds due to hydrogen embrittlement and hydrogen-induced cracking is a common concern. This cracking is more of a problem in higher j strength steels (yield strength >120 ksi). Ferritic and martensitic stainless steels, carbon steels, and other high strength alloys are susceptible. Austenitic stainless steels are relatively immune but j could experience damage at sufficiently high hydrogen levels.
Catalyst poisons or pickling inhibitors, as well as lubricants or other material containing P, S or As compounds (e.g.,
molybdenum disufide lubricants) favor the entrance of atomic hydrogen into the metal lattice and should therefore be limited.
l Attachment 7 Page 4 of 11
Compon:nt Aging M: nag:m:nt R$vi:w LCM-16 Revision 4 h SYSTEM: 023, Diesel Fuel Oil i
lV EQUIPMENT TYPE: ACCUMU Potential ARDM List (Revision 1)
Date: Marcr' 27,1996 Intergranular Yes Intergranular Attack (IGA) is very similar to intergranular stress [6]
Attack corrosion cracking (IGSCC) except that stress is not required for [7]
IGA. IGA is localized corrosion at or adjacent to grain boundaries, [2]
with relatively little corrosion of the material grains. It is caused by [12]
impurities in the grain boundaries, or the enrichment or depletion of alloying elements at grain boundaries, such as the depletion of chromium at austenitic stainless steel grain boundaries. A
" sensitized" microstructure causes susceptibility to IGA. When austenitic stainless steels are heated into or slow cooled through the temperature range of approximately 750 to 1500*F, chromium carbides can be formed, thus depleting the grain boundaries of chromium and decreasing their co tsion resistance. High chromium ferritic stainless steels, s . h as Type 430, also experience susceptibility to IGA. Nici el alloys such as alloy 600 experience IGA in the presence of ceitain sulfur environments at high temperatures (by forming low melting sulfur compounds at grain boundaries) or when austenitic stainless steel weld filler metalis inadvertently used on Ni-Cr-Fe alloys. Susceptibility to intergranular attack (sensitization) usually develops during thermal processing such as welding or heat treatments.
~
Irradiation No Not applicable to Equipment Type. The ARDM results in a [6]
) Embrittlement decrease in steel fracture toughness due to long-term exposure to [7]
- V a fast flux of neutrons. High neutron fluence levels can lead to embrittlement of the reactor pressure vessel core beltline, as well as certain reactor internals and core support structures. Control of ,
material composition to low levels of Cu and Ni (and perhaps P and Si, to some extent) is beneficial in some cases, such as the reactor pressure vessel ferritic steel. Core support structure peak fluences as high as 1.0E+21 (e > 1mev) are reached in some cases and can embrittle the austenitic stainless steels and alloy 600 materialin these components. PWRs experience fluences of between 9.0E+18 and about 4.0E+19 (e > 1mev) at the vessel beltline inside surface. Safe-ends and piping outside the vessel are not expected to experience irradiation significant enough to cause problems. However, the embrittlement effects due to low flux irradiation are not well understood. This ARDM is not applicable to this equipment type since these tank components are located outside the reactor building, where the neutron flux is not high enough to cause this ARDM to occur.
(3 v l Attachment 7 Page 5 of 11
Compon:nt Aging Mtnagsm:nt Revi w LCM-16 Revision 4 l SYSTEM: 023, Diesel Fuel Oil l Potential ARDM List (Revision 1) s EQUIPMENT TYPE: ACCUMU i Date: March 27,1996 i i MlC Yes Accelerated corrosion of materials resulting from surface [6] l microbiological activity. Sulfate reducing bacteria, sulfur oxidizers, [7] !
and iron oxidizing bacteria are most commonly associated with [2] l corrosion effects. Most often results in pitting followed by [14]
excessive deposition of corrosion products. Stagnant or low flow i areas are most susceptible. Any system that uses untreated I water, or is buried, is particularly susceptible. Several forms of l fungi and other microorganisms can also survive and multiply in ,
hydrocarbon fuels. j 1
Consequences range from leakage to excessive differential i pressure and flow blockage. Essentially all systems and most ]
commonly-used materials are susceptible. Temperatures from about 50*F to 120*F are most conducive to MIC. Experience in '
virtually all large industries is common. Nuclear experience is i relatively new, but also widespread. MIC is generally observed in !
service water applications utilizing raw untreated water.
Sedimentation aggravates the problem. Hydrocarbon fuel fungi grow into long strings, and form larger mats or globules. They may grow though out the fuel, or at the interface area between the fuel and water bottom layer. As the fuel is agitated, for instance during filling, fungal growth is distributed throughout the fuel system. The fungus organisms need only trace amounts of v minerals and water to sustain their growth, and use the fuel as their main enccgy/ food source. Their growth chemically alters the fuel by producing sludge, acids, and other products of met'abolism.
When they adhere to the fuel containing surfaces the water and waste products lead to corrosion. Rubber and other tank linings, hoses and coatings may also be consumed due to their energy and trace mineral composition.
Oxidation No Not applicable to Equipment Type. The ARDM results from a [7] ;
Chemical reaction at the surface of a material when subjected to [12]
an oxidizing environment. Oxidation occurs at any temperature.
Electrical components experience degradation related to oxidation and are considered separately, Oxidation generally is not l considered a deradation mechanism in metals of fluid systems in mild environments since this mechanism serves to protect materials by formation of a passive layer. Other corrosion mechanisms (e.g. Corrosion fatigue, crevice corrosion, erosion corrosion, general corrosion and pitting) can result from cxidation/ reduction reactions under specific aggressive mechanical and chemical environment and are addressed separately. It could be considered a degradation mechanism at i high temperatures, where a more rapid reaction between metal l and oxygen is likely to occur. These temperatures do not occur in i power plant applications under evaluation. Therefore, oxidation is I
not considered a potential ARDM for these tank components.
l Attachment 7 Page 6 of 11
Compon:nt Aging M: nag:: ment Rsvi w LCM-16 Revision 4 SYSTEM: 023, Diesel Fuel Oil
/^\ Potential ARDM List (Revision 1)
U EQUIPMENTTYPE: ACCUMU Date: March 27,1996 Particulate No Not applicable to equipment type. Particulate wear erosion is the [7]
Wear Erosion loss of material caused by mechanical abrasion due to relative motion between solution and material surface. Requires high velocity fluid, entrained particles, turbulent flow regions, flow direction change, and/or impingement. This ARDM is therefore not applicable to tanks as flow into or out of a tank is relatively infrequent and flow rates are low.
Pitting Yes A form of localized attack with greater corrosion rates at some [6]
locations than at others. Pitting can be very insidious and [7]
destructive, with sudden failures in high pressure applications [2]
(especially in tubes) occurring by perforation. This form of [12]
corrosion essentially produces " holes" of varying depth to diameter ratios in the steel. These pits are, in many cases, filled with oxide debris, especially for ferritic materials such as carbon steel. Deep pitting is more common with passive metals, such as austenitic stainless steels, than with non- passive metals. Pits are generally elongated in the direction of gravity. In many cases, erosion corrosion, fretting corrosion, and crevice corrosion can also lead to pitting. Corrosion pitting is an anodic reaction which is an autocatalytic process. That is, the corrosion process within a pit produces conditions which stimulate the continuing activity of the
/~' pit. High concentrations ofimpurity anions such as chlorides and
\ sulfates tend to concentrate in the oxygen- depleted pit region, giving rise to a potentially concentrated aggressive solution in this zone. Pitting has been found on the outside diameter of tubes where sludge or tube scale was present. It can also occur at locations of relatively stagnant coolant or water, such as in carbon steel pipes for service water lines, and at crevices in stainless steel, such as at the stainless steel cladding between reactor pressure vessel closure flanges. Pitting can become passive in some metals such as aluminum.
Radiation Yes Non-metallies are susceptible to degradation caused by gamma [4]
Damage radiation.
Rubber Yes Rubber can be used in specific applications of this device type. [3]
Degradation Long term exposure of rubber to water will result in water absorption and swelling, blistering, hardening, and eventual cracking. When utilized as a protective lining, moisture I permeation of the rubber produces blisters beneath the lining and initiates corrosion of the lined surface.
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v Attachment 7 Page 7 of 11
l Compon:nt Aging Man:g:m:nt Rsvi:w LCM-16 Revision 4 l SYSTEM: 023, Diesel Fuel Oil Potential ARDM List (Revision 1) d EQUIPMENTTYPE: ACCUMU Date: March 27,1996 l
Saline Water No Not applicable to Equipment Type. Saline Water Attack has [2]
Attack resulted in the degradation of reinforced concrete structures. The l degradation mechanism involves water seepage into the concrete resulting in a high chloride environment for the reinforcing bars.
The reinforcing bars corrode resulting in expansion that leads to
, cracking and spalling of the concrete. Of particular concern for j' structures that are inaccessible for routine inspection, and piping or other fluid components embedded in concrete. This ARDM is not applicable to tank components since tanks are not constructed of nor typically installed in concrete.
Selective Yes The removal of one element from a solid alloy by corrosion [12]
Leaching processes. The most common example is the selective removal of [13]
zinc in brass alloys (dezincification). Similar processes occur in other alloy systems in which aluminum, iron, cobalt, chromium,
- and other elements are removed. There are two types, layer-type l and plug-type. Layer-type is a uniform attack whereas plug-type is extremely localized leading to pitting. Overall dimensions do not change appreciably. If a piece of equipment is covered by debris or surface deposits and/or not inspected closely, sudden l unexpected failure may occur in high pressure applications due to the poor strength of the remaining material. Requires susceptible
[] materials and corrosive environment. Materials particularly j (,,) susceptible include zinc, aluminum, carbon and nickel.
l Environmental conditions include high temperature, stagnant
, aqueous solution, and porous inorganic scale. Acidic solutions l and oxygen aggravate the mechanism:
Stress Yes Selective corrosive attack along or across material grain [6]
Corrosion boundaries. Four particular mechanisms are known to exist: (1) [7]
Cracking Intergranular (IGSCC), between the material grain boundaries. (2) [2]
Transgranular (TGSCC), across the material grains along certain [12]
crystallographic planes. (3) Irradiation Assisted (IASCC), between [13]
the material grains after an incubation neutron dose which [15]
sensitizes the material. (4) Interdendritic (IDSCC), between the [16]
dendrite interfaces. SCC requires applied or residual tensile i stress, susceptible materials (such as austenitic stainless steels, l alloy 600, alloy x-750, SAE 4340, and ASTM A289), and oxygen and/or ionic species (eg., Chlorides / sulfates).
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Compon:nt Aging Man:g:m:nt R:vi:w LCM-16 Revision 4 !
! SYSTEM: 023, Diesel Fuel Oil l O
O EQUIPMENT TYPE: ACCUMU Potential ARDM List (Revision 1)
Date: March 27,1996 l
l Stress Yes Common sources of residual stress include thermal processing Corrosion (Cont'd) and stress risers created during surface finishing, fabrication, or Cracking assembly. The heat input during welding can result in a localized 1 (Continued) sensitized region which is susceptible to SCC. IGSCC is a concern l in stainless steel piping depending on material condition and process fluid chemistry and also is a potential concern in valve i internals (PH steel). SCC of low alloy steel and carbon steelis not l considered a credible aging mechanism for typical conditions !
encountered in a nuclear power plant. TGSCC may be a concern in low alloy and stainless steelif aggressive chemical species (caustics, halogens, sulfates, especially if coupled with the presence of oxygen) are present. lASCC is a potential concern only for reactor vessel internals and other stainless steel components, such as control rods, which are subject to very high neutron fluence levels. A fast neutron incubation fluence of at least i 1.0E+20 is generally required to sensitize the material.
IDSCC is a potential concern in stainless steel weld metal deposits i based on microstructure and delta ferrite content. This mechanism l is inactive in carbon and low alloy steel. Ammonia grooving in l
brass components can occur when the concentration of ammonia is greater than a few ppm. It is found most often in feedwater O
heaters that contain admiralty brass tubes and where morpholine, l V which breaks down into ammonia, is used to increase the pH of the condensate.
Cathodic protection of buried pipes is provided to prevent SCC; however SCC can occur at areas where the coating is disbonded.
The potential voltage of the pipe can result in the accumulation of l alkali at the pipe surface leading to SCC. The other factors which l which have a strong influence on whether SCC will occur at these locations include the chemical composition of the envirionment,
- the stress level (hoop stress), the nature of the metal (lower yield strength is less likely to develop SCC), the electrode potential of the metal, and the temperature (lower is less likely to develop SCC). A proven remedial measure is careful and complete protection of the pipe surface with an organic coating, which is often supplemented with a polyethylene wrap or epoxy resin coating.,
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( j wi Attachment 7 Page 9 of 11 l
Compon:nt Aging M:nigim:nt R:vi:w LCM-16 Revision 4 SYSTEM: 023, Diesel Fuel Oil Potential ARDM List (Revision 1)
(V) EQUIPMENTTYPE: ACCUMU Date: March 27,1996 Stress Yes l Stress Relaxation occurs under conditions of constant strain [7]
Relaxation '
where part of the elastic strain is replaced with plastic strain. A material loaded to an initial stress may experience a reduction in stress over time at high temperatures (>700*F for typical materials).. Bolted connections are most vulnerable. Relaxation of stress on pac, king due to stretching of gland follower studs under elevated temperatures may cause packing leakage.
]
Irradiation fluence levels greater than 6.0E19 increase relaxation in austenitic and nickel alloy steels.
Thermal Yes Non-metallics are particularly susceptible with material dependent [7]
Damage temperature limits. [2]
Thermat Yes Loss of material fracture toughness caused by thermally induced [7]
Embrittlement changes in the formation and distribution of alloying constituents.
Requires high temperature 500*F to 700*F for metallic components. Ferrite containing stainless steels are susceptible as are materials with grain boundary segregation of impurities.
Wear No Not applicable to equipment type. Wear results from relative [1]
motion between two surfaces (adhesive wear), from the influence g
b} of hard, abrasive particles (abrasive wear - see particulate erosion) or fluid stream (erosion), and from small, vibratory or sliding motions under the influence of a corrosive environment (fretting). In addition to material loss from the above wear mechanisms, impeded relative motion between two surfaces held in intimate contact for extended periods may result from galling /self-welding. This ARDM is not applicable to tanks as there are no moving parts.
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Attachment 7 Page 10 of 11 1
i
l Compon:nt Aging Min gsm:nt Ravisw LCM-16 Revision 4
! SYSTEM: 023, Diesel Fuel Oil ,
!F .
Potential ARDM List (Revision 1) l EQUIPMENT TYPE: ACCUMU Date: March 27,1996 Attachment 7 Reference List Source Title ,
[1] ASME Wear Control Handbook, Peterson and Winer,1980 l [2] Standard Format and Content of Technical Information for Applications to Renew Nuclear !
l Power Plant Operating Licenses, Draft NRC Regulatory Guide No. DG-1009, December l
1990
[3] Service (Salt) Water System Life Cycle Management Evaluation, EPRI Report No. TR-102204, April 1993 i' [4] Radiation Effects on Organic Materials in Nuclear Plants, EPRI Report No. NP-2129, November 1981
[5] Erosion / Corrosion in Nuclear Plant Steam Piping, EPRI Report No. NP-3944,1985
[6] Component Life Estimation: LWR Structural Materials Degradation Mechanisms, EPRI Report No. NP-5461,1987
[7] Environmental Effects on Components: Commentary for ASME Section lit, EPRI Report No. NP-5775, April 1988
[8] Boric Acid Corrosion of Carbon and Low Alloy Steel Pressure Boundary Materials, EPRI Report No, NP-5985,1988
~[9]' Nuclear Plant Service Water System Aging Degradation Assessment, NUREG/CR-5379, Volume 1 and 2, June 1989 and October 1992 (10] Aging Assessment of instrument Air Systems, NUREG/CR-5419, January 1990
( [11] Insights Gained from Aging Research, NOREG/CR-5643, March 1992 (12] Corrosion Engineering, Fontana and Greene,1978 (13] Corrosion and Corrosion Control, An Introduction to Corrosion Science and Engineeing, Uhlig, Third Edition,1985
[14] _ BOlBOR JF Fuel Fungicide Service Bulletin, U.S. Borax, No. 279 i (15] NACE-5, Stress Corrosion Cracking and Hydrogen Embrittlement of Iron Base Alloys, June !
12-16,1973, pages 135-139 l
[16] A Survey of the Literature on Low-Alloy Steel Fastener Corrosion in PWR Power Plants, EPRI Report No. NP-3784,1984 l I i
1 4 %./
Attachment 7 Page 11 of 11 l
Component Aging Management Review LCM-16 Revision 4 Attachment 3 Component Grouping Summary Sheet (Revision 1) Date: 03/08/96 SYSTEM: Diesel Fuel Oil (023)
GROUP ID NUMBER: 023-TK-01 GROUP ATTRIBUTES:
- 1. Device Type: Tank
- 2. Vendor.
- 3. Model Number.
- 4. Material:
- 5. Intemal Environment
- 6. External Environment:
- 7. Function: Maintain System Pressure Boundary Integrity l
- 8. Name Plate Data:
PARAMETER VALUE I
. ]
LIST OF GROUPED COMPONENTS (EQUIPMENT ID):
/ OTKFOSTWG11 11 Fuel Oil Storage Tank OTKFOSTWG21 21 Fuel Oil Storage Tank l
O Attachment 3 Page 1 of 1 l
O O O Component Aging Management Review LCM-18 Revision 4 Sub-Component /Sub-Group identification (Revision 1) Date: 3/15/96 SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL EQUIPMENT ID: ACCUMU GROUP ID: 023-TK-01 DEVICE TYPE NAME: TANK Sub-Component / Name Subj to (Replacement Prgm) Manufacturer Material Model Number AMR Passive Intended Function (s)
Sub-Group ID (Source) (Source) (Source) (Source) (Y or N) 023-TK-01A SHELL, INTERNAL PITTSBURGH-DES CARBON STEEL A283 GR C NA MAINTAIN PRESSURE BOUNDARY INTEGRITY Y (NONE) MOINES (SPEC 6750 M-216) (NA) (CLSR)
(12329-0001) 023-TK-01B NOZZLES / PENETRATIONS PITTSBURGH-DES CARBON STEEL NA MAINTAIN PRESSURE BOUNDARY INTEGRITY Y (NONE) MOINES (SPEC 6750 M-216) (NA) (CLSR)
(12329-0001) 023-TK-01C ANCHOR BOLTS / NUTS PITTSBURGH-DES CARBON STEEL NA STRUCTURAL SUPPORT FOR PB. Y (NONE) MOINES (TYPICAL) (NA) (CLSR)
(12329-0001) 023-TK-01D MANWAY BOLTS / NUTS PITTSBURGH-DES CARBON STEEL NA MAINTAIN PRESSURE BOUNDARY INTEGRITY Y (NONE) !AOINES (TYPICAL) (NA) (CLSR)
(12329-0001) 023-TK-01E STAIRS / PLATFORMS PITTSBURGH-DES CARBON STEEL NA NONE. NO LR INTENDED FUNCTION. N (NONE) MOINES (SPEC 6750 M-216) (NA) COMPONENT IN LR SCOPE FOR PRESSURE (12329-0001) BOUNDARY ONLY.
(CLSR) 023-TK-01F SHELL SIDE AND ROOF, PITTSBURGH-DES CARBON STEEL, A283 GR C NA MAINTAIN PRESSURE BOUNDARY INTEGRITY Y EXTERNAL MOINES (SPEC 6750 M-216) (NA) (CLSR)
(NONE) (12329-0001) 023-TK-01G SHELL BOTTOM, PITTSBURGH-DES CARBON STEEL, A283 GR C NA MAINTAIN PRESSURE BOUNDARY INTEGRITY Y EXTERNAL MOINES (SPEC 6750 M-216) (NA) (CLSR)
(NONE) (12329-0001)
Attachment 4 Page 1 of 1
Component Aging Management Review LCM-16 q) Revision 4 ARDM Matrix (Revision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL 'i EQUIPMENT TYPE: ACCUMU DEVICE TYPE: TANK GROUP ID: 023-TK-01 Date: March 27,1996 i
023-TK- 023-TK- 023-TK- 023-TK- 023-TK- 023-TK-ARDMs 01A 018 0' O 01D 01F 01G Shell Anc6ar Manway Shell Extemal Shell Bottom intemal Penetrations BoltsAAts Bolts / Nuts Exposed Extemal Crevice Corrosion A A B B B 18 Fatigue 12 12 12 12 12 12 Fouting A A 19 19 19 18 Galvanic Corrosion 07 07 07 07 07 07 Genera! Corrosion A A B B B 18 Hydrogen Damage 03 03 03 03 03 03 Intergranular Attack 01.1 _01.1 01.1 01.1 01.1 01.1 i MIC A A 06 06 06 06 Patting A A B B B 18 Radiation Damage 01.1 01.1 01.1 01.1 01.1 01.1
.gs Rubber Degradation 01.1 n11 _ 01.1 01.1 01.1 01.1 Selectife Leaching j
( Stress 01.1 17 01.1 17
_ 01.1 17 01.1 17 01.1 17 01.1 18 j ' Corrosion Cracking l
Stress Relaxation 04 04 04 04 04 04 Theimal Damage 01.1 01.1 01.1 01.1 01.1 01.1 Thermal 04 04 04 04 04 04 Embrittlement l
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- Attschment 5 Page 1 of 1 J
i
Component Aging Management Review LCM-16
! Revision 4 A .
Matrix Code List (Revision 1) 4 SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL l DEVICE TYPE: TK EQUIPMENT TYPE: ACCUMU l GROUP ID: 023-TK-01 Date: 3/28/96 l Code Description Source 01 MATERIAL IS NOT APPLICABLE TO THE ARDM. MATERIAL OF ATTACHMENT 7 CONSTRUCTION IS NOT SUSCEPTIBLE TO THIS ARDM: M-216 12329-0010 01.1 CARBON STEEL 03 PROCESS FLUID DOES NOT PERPETUATE THE ARDM ON THE INSIDE OF ATTACFMENT 7 THE TANK. THE PROCESS FLUID IS FUEL OIL THE NORMAL HYDROGEN METALS HANDBK VOL 13 CONCENTRATION AND LOW PRESSURES ARE NOT SUFFICIENT TO MAKE M-216 HYDROGEN ATTACK OR BLISTERING PLAUStBt E. HYDROGEN CRACKING IS NP-5461 NOT A CONCERN FOR MATERIALS WITH YlELD STRESSES LESS THAN 120 CH-1-100 KSI, WHICH IS THE CASE FOR THE MATERIALS IN THIS TANK. GENERAL NP-5769 CORROSION,WHICH CAN LEAD TO HYDROGEN DAMAGE,IS ADDRESSED NP-3137 j AS A SEPARATE ARDM. BGM-96-031 !
ASTM A 283 THE EXTERNAL SURFACE ENVIRONMENT (AIR) DOES NOT CONTAIN SUFFICIENT HYDROGEN OR PRESSURE TO MAKE THIS ARDM PLAUSIBLE.
MOLY DISULPHIDE LUBRICANTS ARE PERMITTED BY PROCEDURE TO BE i USED ON NON-RESTRICTED SYSTEMS SUCH AS DFO. HOWEVER, MOLY !
l DISULFIDE LUBRICANTS REQUIRE MOISTURE AND TEMPERATURE (>150F)
( fq TO DECOMPOSE INTO HYDROGEN SULFIDE. GIVEN THE DESIGN l j TEMPERATURE OF 100F, HYDROGEN DAMAGE DUE TO MOLY DISULFIDE j l LUBRICANTS IS NOT A CONCERN. l 1
WELD HYDROGEN EMBRITTLEMENT IS NOT A CONCERN FOR MILD CARBON l STEEL WITH A YlELD STRENGTH IN THE RANGE OF 30-40 KSL i
04 PROCESS FLUID TEMPERATURE DOES NOT PERPETUATE THE ARDM. ATTACHMENT 7 OPERATING TEMPERATURES MUCH LESS THAN 500*8" ENSURE THIS ARDM 92769 IS NOT PLAUSIBLE (NORMALLY <100F). ES-014 06 ENVIRONMENT DOES NOT PERPETUATE THE ARDM: ATTACHMENT 7 61813 MIC IS NOT PLAUStBLE FOR EXPOSED TANK EXTERNALS. THE LACK OF M-216 CONSISTENT STAGNANT WATER PREVENTS SIGNIFsCANT MICROBIOLOGICAL GROWTH. THIS IS ALSO TRUE FOR THE EXTERNAL SURFACE OF THE TANK BOTTOM. BOTH TANKS SIT ON 3" OF OIL SOAKED COMPACTED SAND. THE OUTER RING IS SEALED TO PREVENT WATER FROM GETTING UNDER THE TANK. THEREFORei, GIVEN THE LACK OF WATER UNDER THE TANK, MlC IS NOT A CONCERN.
07 MATERIAL SELECTION / SEPARATION DOES NOT DERPETUATE THE ARDM. ATTACHMENT 7 .
l MATERIALS USED THROUGHOUT THE SYSTEM GENERALLY HAVE LOW 61201 ;
POTENTIAL DIFFERENCES AND,WHERE APPROPRIATE. ARE SEPARATED 61202 l BY APPROPRIATE TRANSITION MATERIALS. THE TANK BOTTOMS ARE 92767 j ALSO PROTECTED BY A CATHODIC PROTECTION SYSTEM AND ARE 61406SH0004SEC101.2 COATED WITH A MATERIAL WHICH PROVIDES GALVANIC PROTECTION. M-216 4
e
- O Attachment 6 Page 1 of 3 I
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Component Aging Management Review LCM-16 Revision 4 Matrix Code List (?.evision 1)
SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL DEVICE TYPE: TK EQUIPMENT TYPE: ACCUMU GROUP ID: 023-TK-01 Date: 3/28/96 Code Description Source 12 SERVICE LOADING AMPLITUDES / FREQUENCIES DO NOT PERPETUATE THE ATTACHMENT 7 ARDM. THE SYSTEM IS NOT CYCLED FREQUENTLY AND OPERATES AT 92769HB SH HB-1 LOW PRESSURE AND TEMPERATURES MAKING THIS ARDM NOT 01-21.01-210 PLAUSIBLE. THE TANK IS NOT SUBJECT TO CONTINUOUS OR HIGH AMPLITUDE DYNAMIC LOADS.
c 17 COMPONENT MATERIAL AND ENVIRONMENT DO NOT PERPETUATE THE ATTACHMENT 7 ARDM. NACE-5 PGS 59,137-138 ;
TANK INTERNALS AND EXPOSED EXTERNALS ARE NOT SUSCEPTIBLE TO SCC AS THE MATERIAL IS MILD CARBON STEEL WITH MINIMAL STRESS, AND 13 EXPOSED TO FUEL OIL OR AIR. THESE ARE NOT CONDITIONS WHICH INDUCE SCC OF CARBON STEEL 18 COMPONENT MATERIAL AND ENVIRONMENT DO NOT PERPETUATE THE ATTACHMENT 7 ARDM. M-216 12329-0010 THE TANK BOTTOMS ARE PROTECTED FROM ALL FORMS OF EXTERNAL 61813 CORROSION BY SEVERAL DESIGN FEATURES: THE BOTTOMS ARE UFSAR 2.7.3.2 O COATED WITH ONE COAT OF BIAIMASTIC SUPERBLACK, WHICH PROVIDES GALVANIC PROTECTION. ALL WELD SEAMS ARE COVERED WITH A STRIP OF NO-OX-lO ASBESTOS STRIPS. THE TANKS ARE SET ON A 3" LAYER OF 61201 61202-G:\ PES \950103-200 OIL SOAKED COMPACTED SAND. THE OUTER EDGE OF THE TANKS ARE 12329-0003 ANCHORED TO A CONCRETE RING. ANY VOIDS BETWEEN THE TANK '
BOTTOMS AND THE CONCRETE RING WERE FILLED WITH GROUT AND THEN THE JOINT WAS SEALED WITH A FIBRATED COLD PLASTIC COAL TAR PITCH FLASHING. TANK #21 IS 1OCATED INSIDE A BUILDING WITH THE BOTTOM AT ELEVATION 46', THEREBY PROTECTING THE TANK FROM DIRECT WEATHER AND GROUND WATER. TANK #11 IS LOCATED OUTSIDE AT ELEVATION 46', WELL ABOVE THE GROUND WATER LEVEL THIS DESIGN ASSURES THE BOTTOM OF BOTH TANKS IS PROTECTED FROM CORROSIVE ENVIRONMENTS. THE TANK BOTTOMS ARE ALSO PROTECTED BY AN IMPRESSED CATHODIC PROTECTION SYSTEM.
THE PROTECTIVE FEATURES OF THE DESIGN WERi LEMONSTRATED ADEQUATE FOR OUTDOOR TANK #11 BY AN INTERNAL TANK INSPECTION PERFORMED ON 11/1/95. THE INSPECTION INCLUDED A SERIES OF UT MEASURFMENTS OF THE 1/4 INCH BOTTOM PLATES, WHICH SHOWED A MINIMUM THICKNESS OF 0.251 INCHES. THIS INSPECTION DEMONSTRATES THAT THE TANK BOTTOM IS ADEQUATELY PROTECTED )
FROM CORROSION EFFECTS.
19 COMPONENT ENVIRONMENT DOES NOT PERPETUATE THE ARDM. THE ATTACHMENT 7 SUBCOMPONENTS TYPICALLY ARE NOT EXPOSED TO THE PROCESS FLUID WHICH MAKES THE ARDM NON-PLAUSIBLE.
Attachment 6 Page 2 of 3 ,
1
l l
l Component Aging Management Review LCM-16 Revision 4
)
Matrix Code List (Revision 1) l SYSTEM NUMBER: 023 SYSTEM NAME: DIESEL FUEL OIL i
DEVICE TYPE: TK EQUIPMENT TYPE: ACCUMU l GROUP ID: 023-TK-01 Date: 3/28/96 Code Description Source A TANK INTERNAL SURFACES: ATTACHMENT 7 LER 89-26 CREVICE, FOULING, GENERAL, MIC AND PITTING ARDMS ARE Pl.AUSIBLE BECAUSE INTERNAL CARBON STEEL MATERIAL OF CONSTRUCTION IS EXPOSED TO FUEL OIL POTENTIALLY CONTAMINATED WITH WATER AND BIOLOGICS WATER WILL GENERALLY COLLECT AT THE TANK BOTTOM.
MECHANISMS ARE COMPOUNDED BY PRESENCE OF SLUDGE / DEPOSITS AT BOTTOM OF TANK (THIS IS A FROBLEM THAT HAS BEEN REPORTED AT CCNPP).
AGING MANAGEMENT RECOMMENDATIONS:
A. OPERATIONS CHECK FOR AND REMOVAL OF WATER (THROUGH SUMP DRAIN).
B. CONTROL OF FUEL OIL CHEMISTRY, INCLUDING SAMPLINO FOR BIOLOGICS.
C. INTERNAL TANK INSPECTIONS, INCLUDING NDE THICKNESS MEASUREMENTS OF BOTTOM PLATE.
B TANK EXTERNAL EXPOSED SUFACES ATTACHMENT 7 CREVICE, GENERAL AND PITTING ARDMS ARE PLAUSIBLE BECAUSE THE EXTERNAL. CARBON STEEL MATERIAL OF CONSTRUCTION IS EXPOSED TO HUMID, MOIST OR WET ENVIRONMENTS FUN AND WEATHER WILL DETERIORATE THE PROTECTIVE PAINT COATING OF THE #11 TANK AND LEAD TO ACCELERATED CORROSION MECHANISMS OF CARBON STEEL COMPONENTS EXPOSED TO MOISTURE. THE #12 TANK IS PROTECTED FROM DIRECT AFFECTS OF SUN AND WEATHER BY A CONCRETE ENCLOSURE. HOWEVER, THE CARBON STEEL SURFACES ARE STILL EXPOSED TO CHANGES IN HUMIDITY AND TEMPERATURE, REQUIRING THE
- PROTECTION OF PAINT. THE EMBEDDED PORTION OF THE ANCHOR BOLTS HAS BEEN EVALUATED TO BE ADEQUATELY PROTECTED FROM CORROSICN BY THE QUALITY OF THE CONCRETE (REF COMPONENT EVALUATION AND PROGRAM EVALUATION RESULTS FOR FUEL OIL STORAGE TANK #21 ENCLOSURE, APPENDIX E THIS IS JUDGED TO BE APPLICABLE TO THE TANK #11 FOUNDATION RING).
AGING MANAGEMENT RECOMMENDATIONS:
(1) PERIODICALLY INSPECT PAINT AND REPAIR AS REQUIRED.
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Attachment 6 Page 3 of 3 I
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