ML20247F564
| ML20247F564 | |
| Person / Time | |
|---|---|
| Issue date: | 05/31/1988 |
| From: | NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| To: | |
| References | |
| REGGD-01.084, REGGD-1.084, NUDOCS 8907270182 | |
| Download: ML20247F564 (15) | |
Text
- _ _ - _ - - - _
R e lon 25 yo/*%o,A U.S. NUCLEAR REGULATORY COMMISSION May 1988
,_,i is*****/ i REGULATORY GU DE (d OFFICE OF NUCLEAR REGULATORY RESEARCH REGULATORY GUIDE 1.84 DESIGN AND FABRICATION CODE CASE ACCEPTABILITY ASME SECTION lil DIVISION 1 t A. INTRODUCTION Appendix B, " Quality Assurance Criteria for Nuclear Power Plants and Fuel Reprocessing Plants," to 10 CFR Section 50.55a, " Codes and Standards," of 10 CFR Part 50 requires, in part, that measures be established for Part 50, " Domestic Licensing of Production and Utiliza- the control of special processing of materials and that tion Facilities," requires, in part, that components of the proper testing be performed, rea'. tor coolant pressure boundary be designed, fabri-rated, erected, and tested in accordance with the require- This regulatory guide lists those Section 111 ASME Code r
ments for Class I components of Section III, " Nuclear Cases oriented to design and fabrication that are generally Power Plant Components,"1 of the American Society of arceptable to the NRC staff for imp?cmentation in the Mechanical Engineers (ASME) Boiler and Pressure Vessel licensing uf light-water-cooled nuclear power plants.
Code or equivalent quality standards. Footnote 6 to 50.55a states that the use of specific Code Cases may Any information collection activities mentioned in this be authorized by the Comraission upon request pursuant regulatory guide are contained as requirements in 10 CFR to 50.55a(a)(2)(ii), which requires that proposed alter- Part 50, which provides the regulatory basis for this guide, natives to the described requirements or portions thereof The information collection requirementsin 10 CFR Part 50 provide an acceptable level of quality and safety. have been cleared under OMB Clearance No. 3150 0011.
General Design Criterion 1, " Quality Standards and B. DISCUSSION Records," of Appendix A, " General Design Criteria for
[] Nuclear Power Plants," to 10 CFR Pan 50 requires,in part, that structures, systems, and components important to The ASME Boiler and Pressure Vessel Committee V)
(
safety be designed, fabricated, erected, and tested to qual-publishes a document entitled " Code Cases "I Generally, the individual Code Cases that make up this document ity standards commensurate with the importance of the explain the intent of Code rules or provide for alter-safety function to be performed.Where generally recognized native requirements under special circumstances.
codes and standards are used, Criterion 1 requires tha't they be identified and evaluated to determine their applicability, Most Code Cases are eventually superseded by revi.
adequacy, and sufficiency and be supplemented or modified sion to the Code and then are annulled by actica of as necessary to ensure a quality product in keeping with the the ASME. In such cases, the intent of the armulled required safety function. Code Case becomes part of the revised Code, w there-fore continued use of the Code Case intent is sanctioned Criterion 30, " Quality of Reactor Coolant Pressure under the rules of the Code, in other cases, the Code Boundary," of the same appendix requires, in part, that Caw is annulled because it is no longer acceptable or components that are part of the reactor coolant pressure there is no further requirement for it. A Code Case that boundary be designed, fabricated, erected, and tested to was approved for a particular situation and not for a the highest quality standards practical. generic application should be used only for construction 1
of the approved situation because annulment of such a Copies may be obtained from the American Society of Mechanical Engineers, United Engineering Center, 34s East 41:h Code Case could result in construction that would not Street, New York, New York 10017. meet Code requirements.
USNRC REGULATORY CUIDES The guides are issued in the following ten bread divisions:
Regulatory Guldes are issued to describe and make available to the pubHC methods acceptable to the NRC staff of implementing 1. Power Reactors 6. Products n ues u d by the staf : ua i g s e c rob e or po u sand t rials Facil ties ccupat n Health u o r no subs it r reg at on , and to pla ce a r$al an la t to tion Id. G n at t the ud H a cap ab f they rovide is for th liTt,T'idit"#m',#an."'"'"" *' ' """"*"" ' * **'"'" "' E,Wn'g%2*L't"M ":@*J' Mc'e"in'f!"ma'anan"=1 p \ This guide was issued after conside'ation of comments received from o unYe U . over m nt Pr n ng f ce, ff C o
\v' / the pubilc. Comments and suggestions for improvements in these ost 3 7082. Washington, DC 20013 7082, telephone (202)275 2060 or
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8907270182 880531 PDR REGGD 01.084 R PDR
The Code Cans listed in this guide are limited to intended to facilitate the Code Case listing and is not those cases applicable to Section 111 that are oriented intended to indicate a limitation on its unge.
toward design and fabrication.
- a. Design-oriented Code Cases (Code Case number, All published Code Cases in the area of des;gn and date of ASME spproval,3 and title):
fabrication that are applicable to Section 111 of the Code
- l and were in effect on August 1,1986, were reviewed for (1) Code Cases applicable to piping design:
inclusion in this guide, in addition to tne listing of acceptable Code Cases, this revition of the guide includer 1745 03 01-76 Stress Indices for Structural Attach-listings of (1) Code Cases that were identified as accept- (N-122) 01-08-79 ments, Chssl,Section III, Division 1 able in a prior version of this regulatory guide and that 01-21-82 were annulled after the original issuance of this guide 01-21-85 j (June 1974) and (2) Code Cases that were identified as N 160-1 07 18-85 Finned Tubing for Construction, I acceptable in a prior version of this regulatory guide Section Ill, Division 1 and that were superseded by revised Code Cases after the original issuance of this guide (June 1974). Code (2) Code Cases applicable to valve design:
Cases that are not listed herein are either not endorsed or will require supplementary provisions on an individual N-133-3 07-18-85 Use of SB-148 Alloys 952 and 954 l l basis to attain endorsement status. Section 111, Division 1, Class 3 N-282 05 15-80 Nameplates for Valves, SectionIII, the endorsement of a Code Case by this guide 05-25-83 Division 1, Class I,2, and 3 Con-constitutes acceptance of its technical position for 07-30-86 struction l applications not precluded by regulatory or other require- N-313 05 11-81 Alternate Rules for llalf-Coupling ments or by the recommendations in this or other 11-28-83 Branch Connections,Section III, regulatory guides. Contingent endorsement is indicated Division 1 in regulatory position C.I.c for specific cases. Ilowever, N-394 02-20-84 Restricting Litt to Achieve Reduced it is the responsibility of the user to make certain that Relieving Capacities of Full Lift, no regulatory requirements are violated and that there Nozzle Type, and Flat Seated are no conflicts with other recommended limitations Safety and Safety Relief Valves resulting from Code Cr.se usage. t'or Compressible Fluid Applica-tions, Section Ill, Division 1, Acceptance or endorsement by the NRC staff applies Classes 2 and 3 only to those Code Cases or Code Case revisions with N-410 12-05-84 Certified Reli(ving Capacities of the date of ASME approval as shown in the regulatory Pressure Relief Valves llaving Set position of this guide. Earlier or later revisions of a Pressure of 3 psig up to but Not Code Case are not endorsed by this guide. New Code including 15 psig Installed for Over-Cases will require evaluation by the NRC staff to pressure Protection of Compressible determine if they qualify for inclueion in the approved Fluid Systems, Section 111, Divi-list. Because of the continuing change in the status of sion 1, Classes 2 and 3 Code Cases, it is planned that this guide will require periodic updating to accommodate new Code Cases and (3) Other Code Cases related to design:
any revisions of existing Code Cases.
1630-1 12-11-814 l'xternal Pressure Charts for High C. REGULATORY POSITION (N-66-1) 12-05-84 Yield Strength Carbon Steels and Low Alloy Steels. (Yield Strength
- 1. The Section 111 ASME Code Cases listed below above 38 Ksi to 60 Ksi inclusive.)
(by number, date of ASME approval, end title) are Section Ill, Division 1, Class 1, 2, acceptable to the NRC staff for application in the con- 3, and MC struction of components for light-water-cooled nuclear N-119-6 09-05-85 Pump Internal items,Section III, {
power plants. Their use is acceptable within the limitations Dhision 1, Class 1, 2, and 3 stated in the " Inquiry" and " Reply" sections cf each N-196-1 01-08-79 Exemption from the Shakedown individual Code Case, within the limitations of such 01-21-82 Requirements When Plastic Analy-NRC or other requirements as may exist, and within the 01-21-85 sis is Ittformed for Sectionlli Divi-additional limitations recommended by the NRC staff sien1, Class I and CS Construction given with the individual Code Case ir, the listing. The ,
g, hen more than one date is given, the earlier date is that on categorization of Code Cases used m this guide is which the Code Case was approved by the ASME and the later dat s) is that on which the Code Case was res! firmed by the A5 4The Code Case was annulled on July 10,1981 (ASME manda-tory annulment date). It was teinstated on December 11 1981.
'l .ines indicate substantive changes from Revision 24. Because of the circumstances and because there were no cIlanges in the Code Case, the NRC considers that this Case was in effect 2A numerical listing of the Code Cases appears in the appendu, during the period of 710-81 through 12 11 81.
1.84-2
N-243 08 30-79 Boundaries Within Castings Used for N-412 04-15-85 Alternative Rules for Witnessing 07 16-82 Core Support Structures,Section III, the Piping System Pressure Tests 05-19-85 Division 1, Class CS of Classes 1, 2, and 3 Piping 0 N-247 07-09-79 Certified Design Report Sununary for 01-21-82 Component Standard Supports, N-420 02-14-85 Systems, Section 111, Division 1 Linear Energy Absorbing Supports ~~~i 01-21-85 Section III, luision 1, Class 1, for Subsection NF, Classes 1, 2, 2,3 and MC and 3 Construction,Section III, l N-309-1 12 05-85 Identification of Materials for Can. Division 1 ponent Supports, Section 111, Divi-sion j Code Case N-420 is acceptable subject to the follow-N 319 07-13 81 Alternate Procedure for Evaluation ing conditions in addition to those conditions speci-071344 of Stresses in Butt Weld Lbow: in fled in the Code Case. Each applicant desiring to use ;
Class i Piping,Section III, Divi- the Code Case should provide the followmginformation sion 1 prior to implementing the Case: (1) indication of systems ;
N-341 06-17-82 Certification of Level Ill NDE in which energy absorbing supports are to be used, '
05-19-85 Examiner, Section Ill, Division 1 (2) fatigue design, (3) piping system analysis results _
and 2 considering inelastic behavior of supports, and (4) plans I N-397 02 20-84 Alternative Rules to the Spectraj f r inservice examination of energy absorbers.
Broadening Procedures of N-1226.3 '
for Classes 1, 2, and 3 Piping Section III, Dividon I b. Fabrication-oriented Code Cases:
Code Case N-397 is acceptable subject to the follow. (1) Code Cases related to welding and brazing; ing ccndition in addition to those conditions speci-fied iri the Code Case. The Code Case is acceptable N-55-1 04-05-84 Inertia and Continuous Drive Fric-for specific plant applications on a case-by-case basis tion Welding, Sedion 111, Divi-pending revision of Regulatory Guide 1.122, "Devel. sion 1 opment of Floor Design Response Spectra for Seismic N-15 4-1 12-05-85 Projection Resistance Welding of l Design of Floor Supported Equipment or Components." Valve Seats,Section III, Division 1, Class I, 2 and 3 Valves N-41 'l-1 02-20-86 Alternative Damping Values for N-2171 01-07-80 Postweld lleat Treatment of Weld Response Spectra Analysis of 09-07-82 Deposit Cladding on Classes 1, 2,3, Classes 1, 2, and 3 Piping, Sec- 12-05-84 MC, and CS Items, Section 111, Divi-tion III, Division 1 09-05-85 sion 1 l N-229 01-08-79 Alternate Rules for Fabrication Code Case N-411-1 is acceptable subject to the follow. 01-21-82 WeFling SB-148 Alloy CDA 9.54 for ing conditions in addition to those conditions specified 01 21-85 Section 111, Division 1, Class 3 in the Code Case: (1)The Code Case damping should Construction be used completely and consistently, if used at all N-233 01-08-79 Alternate Rules for IVitT of P-No.
(For equipment other than piping, the damping values 01-21-82 6, Group 4 Materic' for Section 111, specified in Regulatory Guide 1.61, " Damping Values 09-17-84 Division 1, Class 1,2, or 3 Construc-for Seismic Design of Nuclear Power Plants," should tion be used.) (2) The damping values specified may be N-260-2 12-05-85 Weld Repair of SA-182 Type 316 i used only in those analyses in which current seismic Forgings,Section III, Division 1, spectra and procedures have been employed. Such use Classes 1, 2, 3, and MC should be limited only to response spectral analyses (simibr to that used m the study supportingits accept-ance - Reference NUREG/CR-3526). The acceptance of Code Case N-260-2 is acceptable subject to the follow-the use with other types of dynamic analyset (e.g., time- ing condition in addition to those conditions speci-history analysis or independent support motion fied in the Code Case: Type 308 L welding materials method) is pending further justification. (3) When should not be used to repair grade F 316 N forgings used for reconci!iation work or for support optimiza- because of the differences in strength levels.
tion of existing designs, the effects of increased motion on existing clearances and on line mounted equip- N-262 01-07-80 Electric Resistance Spot Welding i ment should be checked. (4) This Code Case is not 09-07-82 for Structural Use in Component appropriate for analyzing the dynamic response of 09-05 85 Supports, Section Ill, Division 1 piping systems using supports designed to dissipate N-304-3 !2 05-85 Use of SB-676 20Cr-25Ni-6Mo (Alloy energy by yielding (i. e., the design of which is UNS N08366) Plate, Sheet, Strip covered by Code Case N-420). (5) This Code Case is and Welded Pipes,Section III, not applicable to piping in which stren corrosion Division 1, Classes 2 and 3 l cracking has occurred unless a case-specific evaluation N-315 02-14-83 Repair of Bellows, l is made and is reviewed by the NRC staff. 02-19-86 Division 1 Section 111, l 1.84-3
Code Csse N-315 is acceptable subject to the following N-368 07-06-83 Pressure Testing of Pump Discharge, con litions ir addition to those conditions specified in Section lit, Division 1, Classes 2 the Code Case: Prior to implementation of the Code and 3 Case, the applicant should present a description of the repair and a justification why the bellows should be Code Case N-368 is acceptable subject to the follow-repaired rather than replaced. Following receipt of ing condition in addition to those conditions speci-approval for the repair, but p-ior to making the repair, fled in the Code Case: Applicants using this Code the applicant should pesent the results of the quali- Case should provide information to demonstrate that fication on the full-scale facsimile bellows, including the length of discharge piping is reasenably short.
the design requirements, to ensure that the repair meets the requirements of the design specification. N-369 02-14-83 Resistance Welding of Bellows, 02-19-86 Section 111, Division i N-316 12-11-81 Alternate Rules for Fillet Weld N-414 02-20-86 Tack Welds for Class 1, 2, 3 and 09-17-84 Dimensions for Socket Welded MC Components and Piping Fittings,Section III, Division 1, Supports,Section III, Division 1 Class 1, 2, and 3 N-430 02-28-86 Alternative Requirements for Weld-N-328 12-11-81 Thermit Brazing or Welding of ing Workmanship and Visual 09-17-84 Nonstructural Attachments, Sec- Acceptance Criteria for Class 1, tion 111, Division 1 2, 3 and MC Linear-Type and N-345-1 12-13-82 Attachment of AMS 5382 ADoy 31 Standard Supports, Section 111, Seat Rings by Friction Welding, Division 1 Section III, Division 1, Classes 1, 2, and 3 Code Case N-430 is acceptable subject to the follow-N-3S 7 12-13-82 Certification of Material for Compo- ing conditions in addition to those conditions speci-05-19-85 nent Supports, Section Ill, Divi- fled in the Code Case: (1) The applicant should sion 1, Subsection NF demonstrate that the applicable supports are not sub-N-391 11-28-83 Procedure for Evaluation of the ject to cyclic loading in excess of 20,000 cycles and Design of Hollow Circular Cross (2) the first sentence of 3.0(f)(1) should be replaced Section Welded Attachments on witu the following: "For material 3/8 in. and less Cass 1 Piping,Section III, Division 1 nominal thickness, undercut depth of 1/32 in, on one N-392 11-28-83 Procedure for Evaluation of the side of the member for the full length of the weld, Design af llollow Circular Cross or 1/32 in. on one side for one-half the length of Section Weided Attachments on the weld, and 1/16 in. for one-fourth the length of Classes 2 and 3 Piping,Section III, the weld on the face of a rectangular tube or one-Division I fourth the lerath of the weld on the same side of N-393 11-28-83 Repair Welding Structural Steel the member is acceptable."
Rolled Shapes and Plates for Com-ponent Supports, Section 111, Divi-sion I c. Code Cases with contingent approsal:
N-413 02-14-85 Minimum Size of Fillet Welds for Subsetion NF Linear Type N-31 1 07-18-85 Elastomer Diaphragm Valves, Sec- l Supports, Section 111, Division I tion 111, Class 2 and 3 (2) Other Code Cases related to fabncation: Code c :;e N-31-1 is acceptable subject to the follow- l j ing conditions in addition to those conditions speci-N-215 05-15-78 Integrally Finned Titanium Tubes, fled in the Code Case: Each applicant who applies the Section III, Division 1, Class 3 Con- Code Case should indicate in the referencing Safety struction Analysis Report that the service life of the elastomer N-237-2 05 25-83 Hydrostatic Testing of Internal diaphragm should not exceed the manufacturer's l 07-30-86 Piping, Section 111, Division 1, recommended service life. This recommended service Classes 2 and 3 life should not exceed 1/3 of the minimum cycle life N-240 03-19-79 Hydrostatic Testing of Open Ended as established by the requirements of paragraph 3 of 01-21-82 Piping, Section Ill, Division 1 the Code Case. In addition, the service life of the 09-17-84 elastomer diaphragm should not exceed 5 years, and N-241 07-09 79 Hydrostatic Testing of Piping, Sec- the combined service and storage life of the clastomer 01-21-82 tion Ill, Division 1 diaphragm should not exceed 10 years.
09-17-84 N-362-2 07-12 84 Pressure Testing of Containment N-62 4 09-05-85 Internal and External Valve Iterm, l Items,Section III, Division 1, Section III, Division 1, Class 1, 2 Classes 1, 2, and MC and 3 Line Valves 1.84-4
l Code Case N-62-4 L acceptable subject to the follow. Code Case N-292 is acceptable subject to the following ing condition in addition to those conditians specified conditions in addition to thoce conditions specified in l in the Code Case: The Code requires that Class 1 and the- Code Case: Class 3 piping that is longitudinally
( - Class 2 valve manufacturers meet the provisions of welded and that has a weld efficiency factor of 1.0 as i NCA 4000, " Quality Assurance," and, in addition, selected from Table ND-3613.4-1 should receive a 100 Class 3 vahe manufacturers should also meet the percent volumetric examination (RT or UT) of the provisions of NCA 4000. deposited weld metal in accordance with the require-ments of ND-5000.
I720-2 11-20-78 Wehl End Pnpumtion kr SectionIII, (N 106-2) 08-28-81 Division 1 Construction N-318-3 09-05-85 Procedure for Evaluation of the l 09-17-84 Design of Rectangular Cross Sec-tion Attachments on Class 2 or 3 Code Case 1720-2 (N-106-2) is acceptable subject to Piping, Section 111, Division 1 l the following condition in addition to those condi- l tions specified in the Code Case: The acceptance of Code Case N-318-3 is acceptable subject to the fol- l weld end preparations other than those shown in lowing conditions ir addition to those conditions figures I, 2, and 3 of the Code Case should be specified in the Code Case. Applicants should identify ;
evaluated on a case-by-case basis. in their Safety Analysis Report: (1) tie method of lug ,
attachment, (2) the piping system involved, and (3) the 1792-2 l 01 08-79 Fiberglass Reinforced 7 thermosetting location in the system where the Case is to be applied. 1 (N-155-2) 01-21 82 Resin Pipe,Section III, Division 1 '
01-21-85 2. Code Cases that were endorsed by the NRC in a prior l version of this guide and were later annulled by action of Code Case 1792-2 (N-155-2) is acceptable subject to the ASME should be considered as deleted from the a the following condition in addition to those condi- list of acceptable Code Cases as of the date of the iGME I tions specified in the Code Case: The applicant should action that approved the anm,lment. Such Code Cases, comply with the additional requirements that are which were annulled on or after July 1,1974, are listed specified in Regulatory Guide 1.72, " Spray Pond below by number, effective dates,5 and title.6 Piping Made from Fiberglass-Reinforced Thermosetting Resin." 1361-2 03-09-72 Socket Welds, Section 111 l
[c
\
N-192-2 09-16-81 Use ofBraided Flexible Connectors, 03-01-79 09-17-84 Section 111, Division 1, Class 2 and 3 Code Case 1361-2 was acceptable when used in amnection Code Case N-192-2 is acceptable subject to the following conditions in addition to those conditions specified in 1461-17 03-09-72 Electron Beam Welding, Section 1, the Code Case: The applicant should indicate system 02-16-77 111, and VIII, Division I and 2 application, design and operating pressure, and pressure- 1470-28 12-18-72 External Pressure Charts for liigh-temperature rating of the 11exible hose. Data to demon- 11-04-74 Strength Carbon Steels and for strate compliance of the flexible hose with NC/ND 3649, Low-Alloy Steels, Section Vill, particularly NC/ND-3M9.4(e), are required to be furnished Division 1 and 2, and Section 111 with the application. 1471 1 03-09-72 Vacuum Electron Beam Welding of 01-01-78 Tube Sheet Joints, Section til N-284 08-25-80 Metal Containment Shell Buskling 1477-1 03-09-72 Use of 1970 Addenda of ANSI 05-25-83 Design Method, SectionIll, Divi- 01-01-78 B31.7, Section 111 j 07-30-86 sion 1, Class MC 1494-1 03-03-73 Weld Procedure Qualification Test, 01-01-78 Section ill Code Case N-284 is acceptable subject to the follow- 1506 12-13-71 Stress Intensification Factors, Sec-ing condition in addition to those conditions speci- 01-01-78 tion III, Class 2 and 3 Piping fled in the Code Case: Prior to implementation of the Code Case, the applicant must demonstrate to date t C le annEedYWhrNote h w the satisfaction of the NRC staff (via Safety Analysis appear, the last date is the date that the Code Case was annulled, d ( ' d****) *** ** d*** # "*'U""**' " ' * *
$'s,M' Report) that any axisymmetric techniques that are proposed will be applicable to a vessel havicg large )
6%
asymmetric openings and that the overall margm, used % g4 m w m m the original issue of this guide, were annutled by ASME action w g )
1 to prevent shell buckling is acceptable. prior to July 1,1974.
l 7Code Case 14611 is no longer listed as a Section III Code N-292 01-05 81 Depositing Weld Metal Prior to Case and is therefore deleted from the acceptable !isting, i 11 28-83 Preparing Ends for Welding, Sec- B The annulment of Code Case 1470-2 was effective upon S l 07-30-86 ion 111, Division 1, Class 1, 2' ASME approval or Code Case 163c. However, because of an over-sight, the annulment was not noted until publication of Supplement and 3 Construction No.13 to the 1974 Code Cases. j 1.84-5
1516-2 08-11-75 Welding of Seats or Minot internal 1555-1 01-14-77 Certification of Safety Relief Valves, (N-24) 07-01 78 Permanent Attachments in Valves 01-01-78 Section Ill, Division 1 for Section 111 Applications 1569 03-03-7511 Design of Piping for Pressure Relief 1516-2 11-20-78' Welding of Seats or Minct Internal 07-01-79 Valve Station,Section III (N-24) 01-01-80 Permanent Attachments in Valves for Section111 Applications Code Case 1569 was accepuble subject to compliance 153310 06 M-72 Pressure Temperature Ratings of with the recommendations contained in Regulatory 07-01-75 SA-351 Grades CF8A, CF3, and Guide 1.67, " Installation of Overpressure Protection CF3M, Section Ill Devices."
1535-2 04-30-73 Hydrostatic Testing of Section 111, 03-21 77 Class ! Valves 1573 04-30-73 Vacuum Relief Valves, Section 111 1536 08-14-72 Closing Seam for ElectricalPenetra- 01-01-78 07-01 '77 tions for Section 111, Class 2,3, and 1574 04-30-73 Hydrostatic Test Pressure for Safety MC 12-31-74 Relief Valves, Section 111 1539-1 11 21 77 Metal Bellows and Metal Diaphragm 1580-1 11-05-73 Buttwelded Alignment Tolerance and (N-30-1) 01-01-E l Stem Sealed Valves, Section 111, 01-01-78 Acceptable Slopes for Concentric Division 1, Classes 1, 2, and 3 Centerlines for Section !!!, Class 1, 1541-3 05 15-7E Ilydrostatic Testing of Embedded 2, and 3 Construction (N-32-3) 07 01-79 Class 2 and Class 3 Piping for Sec- 1581 06-25-73 Power-Operated Pressure Relief tion 111, Division 1 Construction 03 01-79 Valves, Section Ill N-32-4 03-16-81 Hydrostatic Testing of Embedded 1588 08-13-73 Electro-Etching of Section !!I Code 03-16.84 t.,. ; 2 and 3 P2 ping for Section 111, (N-46) 03-19-79 Symbols Division 1 Construction 03-19-82 1601 11-05-73 Lit ts of Reinforcement for Two-Code Case N-32-4 was acceptable subject to the fol- 07-01-74 Th- s Area, Section Ill, Class I lowing conditions in addition to those conditiors 1606-1 12-16-74 Stress Criteria Section 111, Classes 2 specified in the Code Case: 07-01-77 and 3 Piping Subject to Upset,Emer-Fency, and Faulted Operating Con-The acceptance was based on the following clarifi- ditions cation and interpretation. Code Case N-3 2-4 does not replace paragraph NC/ND 6129, " Provisions for Code Case 1606-1 was acceptable subject to the Embedded or inaccessible Welded loints in Pipmg," interpretation that the stress limit designations of of the Code. The intent of the Code Case is to (1) pro- " Upset," " Emergency," and " Faulted" do not neces-vide additional testing above Code requirement and sarily imply agreement with specified pla it conditions (2) permit liquid penetrant or magnetic particle testing applicable to ASME Cade Class 2 and 3 components in place of radiographic testing fos Class 3 piping with for fluid systems. These designations should be 3/8" nominal wall thickness or less. estabushed and justified in the design specifications.
Paragraph (1) contains an additional requirement to 1607-1 11-04-74 Stress Criteria for Section 111, the Code. It was, therefore, acceptsble but unneces- 07-01-77 Classes 2 and 3 Vessels Designed sary to include in the Code Case. Paragraph (2) is to NC/ND-3300 Excluding the a variation in the volumetric examination technique NC-3200 Alternate and wis acceptable as wiitten. Paragraph (3) contains an additional requirement and is not a relaxation of Code Case 1607-1 was acceptatle subject to the the Code. It was, therefore, acceptable but unnecessary interpretation that the stress lindt designations of 1 to include in the Code Case, " Upset," " Emergency," and " Faulted" do riot neces- j sarily in' ply agreement with specified phat conditions 1552-1 08-29-77 Design t y Analysis of Section 111, applicable to ASME Code Class 2 and 3 con;ponents (N-35-1) 07-01-79 Class ! Valves for fluid systems. These designations should be 1553-110 03-03-75 Upset lleading and Roll Thread- established and justified in the design specifications.
01-01-76 ing of S A-453 for Bolting in Sec-tion 111 1614 12-17-7311 Hydrostatic Testing of Piping Prior 01-01-79 To or Following the Installation of
'This revision of the Code Case v as originally approved by the Spray Nozzles for Section III, ASME on 8-1175 and was annuth d on 71-78 because of the Classes 1, 2, and 3 Piping Systemt publication of revisions to Section Ill in the Winter 1977 Addenda.
flowever the users did not believe thit the Code Case was covered 1620 03-02-74 Stress Category for Partial Penetta-in the dode revishn; therefore, A%!E reaffirmed the Case on 1120-78. '5ecause of these circumstan.:es and because there were no (N-61) 01-08-79 tion Welded Penetrations, Section f changes in the Code Case, the NRC considers that this Case was in 01-08-82 effect during the period 7-1-78 through 11-2o-78. 111* Class 1 Construction 10 Code Case was annulled on date as indicated, but the annul- ggCorrected date.
ment was first indicated in Revision 12 to this guide.
1.84-6
1623 03-02-74 Design by Analysis for Section 111, 1672 11-04-74 Nuclear Valves for Section 111, Divi-03 01-79 Class I Sleeve-Coupled and Other 03-21-77 sion 1, Class 1, 2,1 Construction 9 (1630-1 N-66-1) 07-10-81 Patented Piping Joints 07-10-78 External Pressure Charts for iiigh Yield Strength Carbon Steels and Low Alloy Steels. (Yield Strength 1675 167610 12-16-74 Tube-heet to Shell or Formed llead 07-01-76 Weld Joints, Section Ill, Class 1 Vessels 12-16-74 Clarification of Stress Intensities in above 38 Li to 60 Ksi inclusive.) 07-01-76 Curved Pipe or Welded Elbows, For Section IU, Class I, 2,3, and MC Section Ill 1633 04-29-74 Brazing of Seats to Class 1,2, and 3 1677 12-16-74 Clarification of Fluge Design Loads, 01-01-78 Valve Body or Bonnets, SectionIII (N-82) 03-01-79 Section Ill, Claes 1,2, and 3 1635-112 08-12-74 Stress Criteria for Sxtion Ill, Cass 2 16~18 12-16-74 Butterfly Valves of Circular Cross 07-01 77 and 3 Valves Subjected to Upset, 01 08-79 Section Larger than 24 in. NPS for Emergency, and Fau,lted Operating 01-01-80 Section III, Class 2 and 3 Construc-Conditions tion 16R1-133 03-03-75 Organizations Accepting Overall Code Case 1635-1 was acceptable subject to the interpre- (N-34) 03-01-79 Responsibility for Section III Con-tation that the stress limit designations of " Upset," struction I
" Emergency," and " Faulted" do not necessarily imply 1683-1 03-01-76 Bolt 1-loles for SectionIII, Class 1, l agreement with specified plant conditions applicable 07-01-76 2,3 and MC Component Supports to ASME Code Class 2 and 3 cornponents for fluid 1685 04-28-75 Furnace Brazirg SectianIII, Class 1, systems. These designations should be established and 01-01-78 2,3 and MC Construction !
justified in the design specifications. 1686 03-03-75 Furnace Brazing,Section III, Sub-01-01-78 section NF, Component Supprts 1636-112 og.3 2 74 Stress Criteria for SectionIII, Class 2 1689-1 09-10-76 Alternate PWilT Time and Tem-07-01-77 and 3 Pumps Subjected to Upset, 01-01-78 perature for SA-182 Grade F-22, Emergency, and Faulted Operating SA-387 Grade 22, Class 2, and Conditions SA-335 Grade P-22 Section 111, Class 1, 2,3 and CS Code Case 1636-1 was acceptable subject to the inter-pretation that the strers limit designations of " Upset," Code C.tse 1689-1 was acceptable subject to the follow-
" Emergency," and " Faulted" do not necessarily imply ing condition in addition to that specified in the Code 9 agreement with specified plant conditions applicable to ASME Code Class 2 and 3 components for fluid systems. These designations should be catat12sned and Case: The alternate postweld heat treatment should be prequalified along with the apflicable welding procedure in accordance with ash!E Section IX.
justified in the design specificatic is.
1692 04-28-75 Rules for Design of Welded Class 1 I 1651 08-12-74 Interim Requirements for Certifica- (N-90) 07-01-78 Pumps 03 01-79 tion of Component Supports, Sec- 1695-1 11-03-75 Brazing, Section Ill, Division 1, tion 111, Subsection NF 01-01 78 Class 3 1657 11-04-74 Stress Criteria for Class 2 and 3 1700 11-03-75 Determination of Capa& 4e of 07-01-77 Atmospheric and Low Pressure (N-94) 03-19-79 Liquid Relief Valves, Sectmn III, (0-15 psig) Steel Storage Tanks 03-19-82 Division 1, Class 1, 2, and 3 1659 11-04-74 Interconnection of Two Piping 1701-2 07-09-79 Determination of Capacities of 07-01-77 Systems for Section 111, Class 1,2, (N-95-2) 07-09-82 Vacuum Relief Valves, Section 111, and 3 Construction Division 1, Classes 2,3, and MC and 1660 11-04-74 0, rpressure Protection Under Emer- Division 2 Concrete Containments (N-77) 03-01-79 gency Operating Conditions for 1702-1 07-11-77 Flanged Valves Larger than 24 S tion 111, Class 1 (N-96-1) 01-01-80 inches for Secticu lil, Division 1, 1661 11-04-74 Pestweld lleat Treatment P-No.1 Class 1, 2 and 3 Construction 01-01-78 Materials for Section III, Class 1 1703 06-30-75 Brazing o' Copper Alloys Sectionlli, Vessels 01-01-78 Class 2 i 1662 11-04-74 Shop Assenibly of Components, Ap- 1706 06-30-75 Data Report Forms for Component 01-01-78 purtenances and Piping Subassemblies 12-31-75 Supports, Section Ill, Class I, 2 for Section Ill, Class 1,2,3 and MC and 3 Construction 1711 11-03-75 Pressure Relief Valve Design 1665 11-04-74 Pressure-Temperature Ratings for (N-100) 01-08-79 Rules,Section III, Division 1, (N-81) 07-01-78 Class 1 Valves Made from 5 Cr-1/2 01-21-82 Class 1, 2 and 3 Mo,Section III 01 01-83 0 12 Code Canes 1635 and 1636 were approved by ASME on July 1, 1974, and revised on August 12, 1974. Because Code Cases 1635 and 1636 were not in effect on September 1,1974, they are nog included in this guide.
33 Code Case 1681 was approved t y ASME on 12-36-74 and revised on 3-3-75. Because Code Case 1681 was not in effect on March 31,1975, the Code Case was not included in this guide.
1.84-7
Code Case 171I was acceptable subject to the fallowing (N-116) 01-01-78 Ilvision1, Class 1,2,3 and MC Con- j conditiore in addition to those conditions specified in struction of Component Supports -
the Code Case. The following information should be provided in the Safety Analysis Report: Code Case 1734 was acceptable subject to the follow-ing onditions in addition to those conditions specified (1) If stress limits are used in excess of those specified in the Code Case: 'f the configuration of Figure 1 of the for the upset operating condition, it should be Code Case is used for Class I and MC component demonstrated how the pressure relief function is rupperts, full penetration welds shoaid te used. Tne ensured. Refri to parapaph 3.1, Seuion I, of the application of the configuration shown in Figures 2 Case for Class I and paragraph 3.2,Section II, of and 3 should be restricted to the welding of cans for the Case for Class 2 and 3 pressure relief valves. spring encapsulation in spring hanprs. In Figure 3, the length of the leg of the fillet weld adjacent to (2) If Case 1660 is to be used in conjunction with this the plate should be equ I to the thickness of the Case, it should be stated that the stress limits exposed end of the plate; also, the leg of the fillet of Case 1660 supersede those of paragraph weld adjacent to the shell should be equal to the 3.2(b),Section I, of Case 1711. Functional thickness of the exposed end of the shell, assurance of (1) above is required in all situations.
1739-4 11-17-80 Pump Internal items, Sec-1712 08-11-75 Nameplates and Stamping for Sec- (N-119-4) 12-01-83 tion III, Division 1, Clasa 1, (N-101) 03-01-79 tion Ill, Division 1, Class 1, 2, 3 2, and 3 and MC Construction as Referenced 1744 03-01-76 Caiboe Steel Pipe Flanges Larrer in NA-8300 (N-121) 03-01-79 than 24in., Sectionill, Division 1, 171880 08-11-75 Design of Structural Connections for Class 2 and 3 Construction 07-01-76 Linear Type Component Supports, 1765 04-26-76 Machining After Ilydrostatic Testing Section Ill, Division 1, Class 1,2 and 07-01-77 Class 2 and 3 Construction, Section 3 and MC 8.li, Division 1 171910 08-11-75 Single-Welded, Full-Penetration Side- 1768 06-29-76 Permanent Attachm(nts to Contain-07-01-76 wall Ikttt Joints in Atmospheric 01 01-78 ment Vessels-Class MC, Section 111, Storage Tanks, Section 111, Divi- Division I sion 1, Class 2 17691 02-16-77 Qualification of NDE Levelill Per-1726 11-03-75 Refinement of Low Alloy Steel 10-01-77 sonnel, Section 111, Division 1 (N-109) 03-01 79 lheat Affected Zone Under Overlay 1774-1 07-11-77 Minimum Wall 'ndckness for Class 2 Cladding, Section 111, Division 1, (N-142-1) 01-01 80 and 3 Valves, Section !!!, Division 1 Class 1 Components 1775 08-13-76 Data Report Forms for Core Sup-1727 12-22-75 Alternate Test Fluids, Section til, 08-13-79 port Structures, Class CS, Section Ill, (N-110) 01-01-79 Division 1 Division i 1780-1 07-10-7811 flydrostatic Testing and Stamping Code Case 1727 was acceptable subject to the follow- (N-146-1) 12-11-81 of Components, Section 111, Did-ing condition in addition to those conditions specified 01-01-82 sion 1 Construction in the Code Case: The appheant should providejustifica-tion in the referencing Safety Analysis Report for the Code Case 17E0-1 us 9c( ep'able tuhject to the fo' low-fluid selected for use in the pressure test. The informa- ing condition: M addition to those conditions specified tion provided should demonstra:e that the fluid selected in the Code Case: On a generic basis, the application of will not have deleterious effects on the material of the the Cn.le Case is limited to purnps and valves. Applica-pressure boundary and that the fluid may be safely tion to other components should be treated on a case-used at the specified temperature and pressure of the by-case basis. Each licensing application in which the test. When the fluid selected for use is the operating Code Case is to be used should contain information fluid, additional information is not required. showing that, as a minimum, the closure fixture will irnpose loads that result in stresses equal to or greater 1729 11-03-75 Minimum Edp Distance - Bolting than those induccd during the hydrostatic test of a (N-Ill) 03-01 79 for Section 111, Division 1, Classt, complete pump assembly. A closure fixture 4 *he 2, and 3 and MC Construction of part being tested that is similas in size and hape to Component Supports the actual matnag part is considered adequate to impose 1732 11-03-75 liardsurfaced Valves with inlet these loads. It is not intended that piping reaction (N-ll4) 01 01-79 Connections less than 2-in. Nominal loadings be simulated in the hydrostatic testing.
Pipe Size for SectionIII, Division 1 Class 1 and 2 Construction 1783-1 01-14-77 Quahfication of Nondestructive 1733 11-03 75 Evahiation of Safe Shut Ibwn Earth- 01-01-79 Examination Personnel, Section 01-01 78 quake Loadings for Section 111, 111, Division 1 (N-115)
Division 1, Class MC Containment Vessels Code Case 1783-1 was acceptable subject to the 1734 11 03-75 Weld Design for Use for Section !!!, following condition in addition to those conditions 1.84-8
specified in the Code Case: The first sent; ace of designed in compli;.nce with the requirements of the paragraph (1) should be replaced with the following: respective design specification.
/ "The ' certification of the Level 111 nondestructive examinatic.n personnel for the purpose of this Section 1693 03-20-78 Welding Procedure Qualification of
(~ of the Code shall be the responsibility of the employer (N-212 01-01-81 Dissimilar Metal Welds Whec h ,
of the Level 111 individual. If the employer is not a tering" with Alloy Weld Metal and Certificate lloider, then the verification of such certifi- Heat Treatment May Be involved, cate is the responsibility of the Certificate llolder." Section 111, Division 1, and I Section IX j 179.1 01-14-77 Projection Resistance Welding of N-214-2 05-25-83 Use of S.A-351 Grade CN7M, for (N-154) 01-14-80 Valve Seats, Section 111, Division 1, 12-31 83 Valves,Section III, Division 1 Class 1,2 and 3 Valves N-220 08-28-78 Code Effective Date for Component 1796 01-14-77 Body Neck Thickness Determina- 07-1341 Supports,Section III, Division 1 (N-159) 07-01-78 tion for Valves with inlet Connec- 07-13-84 tions 4-inch Nominal Pipe Size and N-226 11-20-78 Temporary Attachment of Thermo-Smaller, Section 111, Division 1, 01-01-80 couples, Section 111, Division 1, l Class 1, 2, and 3 Class 1, 2 and 3 Component Con-1808 02-16-77 F-Number Classification of Low struction 01-01-78 Alloy and Carbon Steel Bare Rod N-228 03-19-79 Alternate Rules for Sequence of Electrodes Sections I, II,111, IV, V, 03-19-82 Completion of Code Data Report Vill, and IX Forms and Stamping for Section III, 1812 03-23-77 Size of Fillet Welds for Socket Weld- Class 1, 2, 3 and MC Construction (N-174) 01-07-80 ing of Piping,Section III, Division 1 N-238 05 14-79 liigh Temperature Furnace Brazing 01-01-81 01-01-82 of Seat Rings in Valve Bodies or ,
1818 03-23 77 Welded Joints in Component Bonnets for Sution III, Division j (N-175) 07-01-79 Standard Supports,Section III, 1, Class 1, 2, and 3 Valves - !
Division 1 Code Case N-238 was acceptable rxbject to the follow.
Code Case 1818 was acceptable bubject to the follow- ing conditions in addition to those conditio1s specified ing condition in addition to those conditions speci- in the Code Case: The furnace brazing process procc-
~C fied in the Code Case: That portion of the unwelded dure qualification should include a verification for
('-. housing that is limited to 90* maximum should include a minirr.um of two sectors that are uniform nonsensitization as given in ASTM A 262-70, Practices A or E, or ASTM A 708-74 whenever materials subject in fength, to sensitization are to be brazed. Documentation is I required that a nonsensitizing brazing procedure was N-179 07 11-77 Openings in Valves for SectionIll, employed for valves produced to this Case.
07-11-80 Division 1, Class 1, 2 and 3 Con-struction N-25 2 Il-19 79 Low Energy Capacitive Discharge i N 182 07-11-77 Alternate Rules for Procclure Qual- 07-01-82 Welding Method for Temporary or l 07-01-81 ification Base Material Orientation, Permanent Attachments to Compo- l Section !!!, Division 1, Cln 2 and nente and Supports, Section 111, 3 Constrvtion Division 1, and XI ;
N-184 07-11-77 Roll Threading of SA-4f 3 Bolting l 07-01 79 for Section III, Division 1, Class 1, Code Case N-252 was acceptable subject to the following j 2,3 or CS Construction conditions in addition to those conditions specified in j N-189 08-29-77 Primary Membrme Plus Primary the Code Case: The applicant should indicate in the !
07-01 9 Bending Stress Intensity Limits Safety Analysis Report the application, the material, for Other Than Solid Rectangular and the material thickness to which the strain gage or Sxtions for Section 111, Division 1, thermocouple will be attached by CD welding.
Class MC Construction q N-193 11-21-77 Use of SB61 and SB62 Bronze for N-261 05-15-80 Weld Procedure Qualification for ;
I l-21-80 Section III, Division 1, Class 3 Flange 12-13-82 Materials with Impact Require. '
and Socket Weld End Valves ments for Section Ill, Division 1, N-199 03-20-7.8 Intervening Elements, Section 111, Class 3 Construction l 01 01-81 Division 1, Classes 1, 2, 3.and MC N-263 03-17-80 Alternate Thread Forms, Series and l l
Component Construction', 03-17-83 Fits for Component Supports, Sec-tion III, Division 1 Code Case N-199 was acceptable subject to the following C
I
- condition in addition to those conditions specified in the Code Case: The applicant should provide informa- Code Case N-263 was acceptable subject to ti e following Y tion in the referencing Safety Ar.alysis Report that conditions in addition to those conditions s;ecified in demonstrates that all intervening elements have been the Code Case. The following information .hould be l
l 1.84-9
provided in the Safety Analysis Report: (1) a descrip- Code Case N 3!4 was acceptable subject to the fol-tion of the application, (2) a need for the use of the lowing conditions in addition to those conditions Code Case, and (3) a demonstration that support design specified in the Code Case. Applicants should iden-will withstand maximum conditions of loading with tify in their Safety Analysis Report: (1) the minimum the worst combination of thread tolerance, length of thread engagement and (2) the procedure used to establish thread engagement.
N-271 03-17-80 Simplified Method for Analyzing l 02-14-86 Flat Face Flanges with Metal to N-320 07-13-81 Alternate PWiff for SA487, Grade Metal Contact Outside the Bolt 12 31-83 CA6NM,Section III, Division 1 Circle for Section lit, class 2, N-336 06-17-82 Examination of Welds Inaccessible 3, and MC Construction 06-3043 During Pressure Test, Section Ill, N-272 05-15-80 Compiling Data Report Forms, Division 1, Class MC 01-01-82 Section 111, Division 1 N-339 06-17-82 Examination of Ends of Fillet N-275 05-15-80 Repair of Welds, Section 111, 09-17-84 Welds, Section 111, Division 1, l 12-07 82 Division 1 Classes 1, 2, and MC 12-31-83 N 346 06-17-82 Explosive Weldmg, Section 111, 05-19-85 Division 1 Code Case N-275 was acceptable subject to the follow >r 06 30-86 condition in addition to those conditions specified in the N-347 12-13-82 Continuous Electric Resistence Code Case: Use of the Code Case is applicable onty when 12-13-85 Seam Welding of P-No. 8 Mate- !
the removal of an indication requires that the full weld rials for Component Supports, !
thickness be removed and, in addition, the backside of Section III, Division 1 the weld assembly joint is not accessibic for the removal N-349 07-16-82 Pressure Testing Piping Systems, Sec-of examination material. If an indication is removed 12-31-85 tion 111, Division 1, Classes 2 and 3 and weld-metal layers still remain, it is not acceptable N-350 12-07-82 Postweld lleat Treatment-Thick-to gouge through the wall in order to qualify for use of 09-05-85 ness of Material, Section 111, Divi-the Code Case. Instead, examination of the cavity is sion 1 ,
required when such an indication has been removed. j N-276 03-17-80 Welding of SA-358 Pipe, Sec- Code Case N-350 was acceptable subject to the follow-12-14-83 tion 111, Division 1 ing condaion in addition to those conditions speci-v2-1446 fled in the Code Can;; Applicants wishing to use this N-279 05-15-80 Use of Torquing as a Locking Case for other than P-1 materials should demonstrate 07-1341 Device for Section llI, Division that the use of this Case will not adversely affect the 1, Class 1, 2, 3, and MC Compo- required material properties.
nent Supports N-359 12-13-82 Weld Connection for Coaxial Cylin-Code Case N-279 was acceptable subject to the following 12-31-84 ders, Section 111, Division 1, Class I condition in addition to those conditions specified in N-376 05-25-83 Pressure Testing of Embedded the Code Case: When torquing or other preloading is 07-30-86 Class 2 and 3 Piping, Section 111, i used as a locking device and the joint is later unloaded Division 1 or disassembled, the bolting should be replaced unless N-377 04-04-83 Effective Throat ' Duchess of Partial it can be demonstrated or proved to the authorized 12 31-83 Penetration Groove Welds, Section nuclear inspector that the original bolting has act !!!, Division 1, Classes 1, 2, and 3 been permanently strained. N-383-1 07-18-85 Weld Repair of SA-182 Austenitic 09-05 85 Forgings, Section 111, Division 1, N-280 05-15-80 Alternate Rules for Examination of Classes 1, 2, and 3 j 07-01-81 Welds in Section III, Cla-ss 3 Storage Tanks N-281 05-1540 Welding Operator ltrformance Qual- Code Case N-383 was acceptable subject to the following 07-01-81 ification, Section Ill, Division 1 condition in addition to those conditions specified in j N-300 11 17-80 Pressure Temperature Ratings, Ilydro- the Code Case: Applicants who apply the provisions 12-01-83 static Tests, and Minimum Wall of this Case to permit material snanufacturers to weld Thickness of Valve,Section III, repair austenitic forgings without re-solution heat treat-Division 1, Class I ment should provide justification to the NRC staff (via N-302 03-1641 Tack Welding, Section 111, Divi- the Safety Analysis Report) why this is acceptable I l-28-83 sion 1, Construction for their applications, including their evaluation of the N-309 05118) Identification of Materials for Com- susceptibility for stress corrosion cracking.
05-11-84 ponent Supports, Section Ill, Divi-sion 1 N-421 02-14-85 Brazing Usin:t a Radiant Energy -
N-314 05-11 81 Alternate Rules for Thread Engage- 05-19-85 Source, Section Ill, Division 1 05 11-84 ment,Section III, Division 1 06-30-86 1.84-10
- 3. Code Cases that were endorsed by the NRC in a prior " Emergency," and " Faulted" do not necessarily imply version of titis guide and were superseded by revised Code agreement with specified plant conditions applicable to ASME Code Class 2 and 3 components for fluid O Cases not endorsed on orasafter July of the date 1,1974, of the ASME action approved the revised ver.: ion of the Code Cases. These should that bejustified considered systems. as should be established and These designations in the design sprf 5 cations.
Code Cases :that are no longer endorsed are listed in the following by number, effective dates,84 and title. 1607 11-05-73 Stress Criteria for Section 111, Clas- ;
I l-04-74 ses 2 and 3 Vessels Subjected to l 150838 12-13-71 Allowable Stresses, Design intensity Upset, Emergeney, and Faulted i 06-30-75 and/or Yield Strength Values, Sec- Operating Conditions ;
tion 1, Ill, and VIII, Divisions 1 and 2 1516-1 06 25-73 Welding of Seats in Valves for Sec- Code Case 1607 was acceptable subject to the inter-08-11-75 tion Ill Applications pretation that the stress limit designations of " Upset,"
1539 11-06-72 Metal Bellows and Metal Diaphragm " Emergency," and "Fatsted" do not necessarily imply (N-30-1) 11-21-77 Stem Scaled Valves, Section 111, agreement with specified plant conditions applicable Classes I, ?, and 3 to ASME c de o Class 2 and 3 components for fluid 1540-1 03-03-73 Elastomer Diaphragm Valves, Sec- systems. These designations should be estabashed and 01-14-77 tion III, Classes 2 anc 3 justified in the design specifications.
1540-2 01 14-77 Elastomer Diaphragm Valves, Sec-(N-31) 01 07-80 tion ill, Class 2 and 3 1609-1 03-01-76 Inertia and Continuous Drive 02-14-83 (N-55) 08-28-78 Friction Welding,Section I,111, 07-1845 07-13-81 IV, Vlli, Division I and 2, and 04-05-84 IX Code Case 1540-2 (N-31) was acceptable subject to the 1621-2 0$25-77 Internal and External Valve items, following conditions in addition to those conditions (N-62 2) 05-15-80 Section III, Division 1, Class 1, 2 specified in the Code Case: Each apphcant who 05-25-83 and 3 L.ine Valves applies the Code Case should indicate in the refer. 07-18-85 encing Safety Analysis Report that the service life of the clastomer diaphragm should not exceed the manufacturer's recommended service hfe. This recom- Code Case 16212 (N-62-2) was acceptable subject to mended service life should not exceed 1/3 of the the following condition in addition to those conds-9 minimum cycle life ai, established t,y the require-ments of paragraph 3 of the Code Case. In addition, the service life of the elastomer diaphragm should tions specified in the Code Case: The Code requires that Class I and Class 2 valve manufacturers meet the provisions of NCA 4000, " Quality Assurance,"
not exceed 5 years, and the combined service and and, in addition, Class 3 valve manufacturers should storage life of the elastomer diaphragm should not also meet the provisions of NCA 4000.
exceed 10 years.
N-62-3 07-1845 Internal and External Valve items, 1541-1 08 13-73 liydrostatic Testing of Embedded 09 05-85 Section 111, Division 1, Class I, 2 09-30-76 Class 2 knd Class 3 Piping for Sec- and 3 lane Valves tion 111 Construction 1541-2 09-30 Ilydrostatic Testing of Embedded 05-15'76 78 Class 2 and Class 3 Piping for Sec- Code Case N-62-3 was acceptable subject to the follow.
tion 111, Division 1 Construction ing condit>on in addition to those conditions speci-1552 12-18-72 Design by Analysis of Section 111, fled in the Code Case: The Code requires that Class 1 08-29-77 Class i Valves and Class 2 valve manufac~urers meet the provisions 1553 12-18-72 Upset lleading and Roll Threading of NCA 4000, " Quality Assurance," and, in addition, 03-03-75 of SA 453 for Bolting, Section 111 Class 3 valve manufacturers should also meet the 1555 12-18 72 0 rtificatior. of Safety Relief Valves provisions of NCA 4000.
01 14-77 on Liquids 1606 11-05-73 Stress Criteria for Section 111, Class 1630 11-04-74 External Pressure Charts for liigh
? 12-16-74 2 and 3 Piping Subjected to Upset, (N-77) 07-10-78 Yield Strength Carbo. Steels and low Emergency, and Faulted Operating Alloy Steels. (Yield strength above
, Conditions 38 Ksi to 60 Ksiinclusive.)For Sec-tion !!I, Class 1,2,3, and MC; and Code Case 1606 was acceptable subject to the inter- Section Vill, Division 1 and 2 pretation that the stress limit designations of " Upset," 1683 03-03-75 Bolt lloles for Section 111, Division 03-01-76 1, Class 1, 2, 3 and MC Component Supports G date a ev n f oe ase as a roved y 15 Code I
Case 1500 is no longer listed by ASME as a Section III Code Case and is therefore deleted from the acceptable Hating.
1689 06-30-75 Alternate PWilT Time and Temper-09-10-76 ature for SA-182 Grade l'22 Section
!!!, Class 1, 2, 3 and CS 1.84-11
Code Case 1689 was acceptable subject to the follow- 1769 08 13 76 Qualification of NDE levellll Per-ing condition in addition to that specified in the Code 02-16-77 sonnel, Section 111, Division 1 Case: The alternate postweld heat treatment should 1774 08-13-76 Minimum Wall 'Ihickness for Oass 2 he prequalified along with the applicable welding pro- 07-11-77 and 3 Valves, Section!!!, Division I cedure in accordance with ASME Section IX. 1780 09-10-76 Ilydrostatic Testing and Stamping j 03-10-78 of Pumps for Class 1 Construction, i 1695 04-28-75 Brazing,Section III, Class 3 Sectwn 111, Division 1 11-03-75 1701 06-30-75 Determination of Capacities of Code Case 1780 was acceptable subject to the follow-03-20-78 Vacuum Relief ValvesSection III, ing conditions in addition to those conditions specified ,
Class MC in the Code Case: Each licensing application in which '
1701-1 03 20-78 Determination of Capacities of the Code Case is to be used should present ir. forma-(N-95-1) 03-19 79 Vacuum Relief Valves, Sectian 111, tion that satisfactorily demonstrates that ilk subassem- -
07 09-79 Division 1 and 2, Class MC bly tests adequately simulate the pressure loadings.
1702 06-30-75 Flanged Valves Larger than 24 Also, the closure fixture for the test subassembly should ,
07-11-77 inches br Section lit, Class 1, 2 adequately simulate the rigidity of adjacent 6ubassem- I and 3 Construction blies and also sinudate the interface loadings from 1720 08-11-75 Weld End heparation for Sectionill, adjacent subassemblies that would result from a l 03-01-76 Division 1 Construction hydrostatic pressure test of a complete pump aswmbly. l As a minimum, the closure fixture shouM impose Code Case 1720 was acceptable subject to the follow- loads that result in stresses equal to or gnatea than l ing conditior, in addition to those conditions specified those induced dunng the hydrostatic test of a i in ti a Code Case: Weld end preparations other than complete pump arsembly. It is not intendeo that 'j those shown in Figures 1, 2, anG 3 of the Code Cas( piping reacti<u loajings bc simulated in the hydro-are not acceptable on a genene basis. Such alternative static testing.
end preparations should be treated on a case-by-case basis. 1783 09-10-76 Qualification of Nondestructive j 01 14-77 Personnel, Section 111. Division 1 1720-1 03-01 76 Weld End heparation for SectionIll, I l-20-76 Division 1 Construction Code Case 1783 was acceptable subject to the follow-ing cond; tion in addition to those con (itions specified Code Case 1720-1 was acceptable subject to the follow- in the Code Case: The first sentence of paragraph (1) ing condition in addition to those conditions speci- should be replaced with the followng: "The certifica-fied in the Code Case: The acceptance of weld end tion of the Level 111 nondestructive examination per-preparations other than those shown in Figures 1, 2, sonnel for the purposes of this Section of the Code and 3 of the Code Case should be evalaated on a shall be the responsibility of the employer of the case by case basis. Level 111 individual. If the employer is not a Certifi-cate lloider, then the verification of such certificate 3739-2 08-2848 Purnp Internal items,Section III, is the responsibi'ity of tne Certificate lloider."
4 119-2) 08-25 80 Division I, Class 1, ' and 3 1739-3 08-2540 Pump Internal itemss Sectisn !!!, 1791 03-174037 Projection Resistance Welding of (N-119-3) !l-1740 Division 1, Class 1,2, and 3 (N-154) 09-09-82 Valve Seats, Section 111, Divi-1739-4 02-204436 Pump laternal items, Section .111, 09-05-85 sion 1, flass 1, 2 and 3 Valves (N 119-4) 07-18-85 Division 1, Class 1, 2, and 3 12-05-85 N-119-5 07-18-85 Pump Internal items, Section ,til, 1797 03 23-77 Finned Tubing for Construction, 09-0545 Division 1, Class 1, 2, and 3 (N-160) 03-1740 Section Ill, Division 1 1761 04-26-76 IAe af SB-i48 Alloy CA9'4 for Sec- 09-0742 01-14-77 tion 111, Division 1, Class 2 or 3 07-18-85 Flanged End Vanes N-192 01-09-78 Use of Flexible llose for Sec-1761-1 01-14 77 Use of SB-148 Alloy CA954, 08-3G 79 tion 111, Division 1, Class 1, 2,
'{N-133) 01-0740 Section !!I, Division 1, Class 3 and 3 Construction 04-02-82 N-133-1 04 02-82 Use of SB-148 Alloys 952 and 954, Code Case N-192 was acceptable subject to the follow-05 .9-85 Sectmn 111, Division 1, Class 3 ing conditions in addition to thou conditions speci-N-133-2 05-1945 Use of SB-148 Alloys 952 and 954 fled in the Code Case. The applicant should indicate 07-1845 Section Ill, Division 1, Class 3 system application, design and operating pressure, and pressurr-temperature rating of the flexible hose. Data 16The Code Cane was annulled on December 1,1983 (ASME 17The Code Case was annulled on January 14,1980 (ASME mandatory annulment date). It was reinstated on l'ebruary 20, mandatory annulment date). It was reinstated on March .7.1980.
1984. liccause of the circumstances and because there were no liecause of the circumstances and because there were no changes A changes in the Code Case, the NRC considers that this Case v.as the Code Case, the NRC considers that this Case was in effect durint, in effect during the period of W1 B3 through 2 20-84. the period of 1-14-80 through 3-17-80 1.84-12
to demonstrate compliance of the flexible hose with N-309 09-17-84 88 Identification of Materials for NC/ND-3649, particularly NC/ND-3649.4(e), ne required 1.'-03-83 Component Supports, ",ection Ill, to be furnished with the application. Division 1 N-318 - 07-13-81 Procedure for Evaluation of the N-192-1 08-30-79 Use of Flexible llose for Section 02-20-84 Design of Rectangular Cross Sec-09-16-81 111, Division 1, Class 1, 2, and 3 tion Attachments on Class 2 or Construction 3 Piping, Section Ill, Division 1 Code Case N-318 was acceptable subject to the follow-Code Case N-192-1 was acceptable subject to the follow- ing conditions in addition to those conditions speci-ing conditions in addition to those conditions specified fled in the Code Case. Applicants should identih in k in the Code Case: The applicant should indicate system their Safety Analysis Report: (1) the method of lug application, design and operating pressure, and pressure- attachment, (2) the piping systesa involved, and (3) the temperature rating of the flexibic hose. Data to demon- location in the system where the Case is to be applied, strate compliance of the flexible hose with NC/ND-3M9, particularly NC/ND-3649.4(c), are required to be furnished N-318-139 02 20-84 Procedure for Evaluation of the with the application. 07-12-84 Design of Rectangular Cross Sec-tion Attachments on Class 2 or 3 Piping, Senion 111, Division 1 N-196 01-09-78 Exemption from the Shakedown 01-08-79 Requirements When Plastic Anal- Code Case N-318-1 was acceptable subject to the ysis is Performed for Section III, following conditions in addition to those conditions Division I, Class 1 Construction specified in the Code Case. Applicants should identify N-214 05-15-78 Use of SA-351, Grade CN7M, for in their Safety Analysis Report: (1) the method of 07 13-81 Valves for Section Ill, Division 1, lug attachment, (2) the piping system involved, and '
09-0742 Construction (3) the location in the system where the Case is to N-214-1 09-0742 Use of SA-351 Grade CN7M, for be applied.
( 05-2543 Valves, Section 111, Division 1 l N-237. 07-09-79 Ilydrostatic Testing of Internal N-318-2 07-12-84 Procedure for Evaluation of the 01-21-82 Piping, Section 111, Division 1 09-05-85 Design of Rectangatar Cross Sec-A 09-07-82 tion Attachments on Class 2 or 3 l N-2371 09-07-82 liydrostatic Testing of Internal Piping, Section Ill, Division 1
\ 05-2543 Piping, Section ill, Division 1, Classes 2 and 3 Code Case N-318-2 was acceptable subject to the !
N-260 01-07-80 Weld Repair of SA-182 Type 316 following conditions in addition to those conditions i 05-25-83 Forgings, Section Ill, Division 1, specified in the Code Case. Applicants should identify 07-18-85 Classes 1, 2, 3, and MC in their Safety Analysis Report: (1) the method of N-260-1 07-18-85 Weld Repair of SA-182 Type 316 lug attachment, (2) the piping system involved, and l ,
12-05-85 Classes 1, 2, 3, and MC (3) the location in the system where the Case is to l l be applied. j ;
Code Case N-260-1 was acceptable subject to the N-345 06-17-82 Attachment of AMS 5382 Alloy 31 following condition in addition to those conditions 12 13-82 Seat Rings by Friction Welding, Sec-specified in the Code Case: Type 308 L welding tie !II, Division i, Classes ), 2, and 3 materials should not be used to repair grade F 316 N N-362 02-14-83 Alternate Rules for Pressure Testing ,
forgings be,iuse of the difference in strength levels. 05-2f6 of Containment items, Section 111, j 1
Division 1 N-362-1 05-LS-83 Pressure Testing of Containment N-304 06-11-81 Use of 20Cr-25Ni 6Mo (Alloy UNS 07-12-84 Items,Section III, Division 1, 04-0544 NOH366) Welded Tubes for Sec- Classes 1, 2, and MC I 07-12 84 tion 111, Division 1, Classes 2 and N-380 10 05 83 Weld Repair of SA-182 Austenitic 3 Construction 07-18-85 Forgings, Section !!!, Division 1, N-304-1 07-12-84 Use of 20Cr-25Ni-6Mo (Alloy UNS Classes 1, 2, and 3 05-19-85 N08366) Welded Tubes for Sec-5 tion III, Division 1, Classes 2 and
- I6The Code Case was annulled on May 11,1984 (ASME manda.
3 Construction tory annulment date). It was reinstated on September 17, 1984.
N-304-2 05-19-85 Use of SB-676 20Cr-25Ni-6Mo Because of the circumstances and because there were no chan es in 12-05-85 (Alloy UNS N08366) Welded Tubes, Cn W using
'NnEd og1,hf 8 t rough 9 f"jhat this g4. Case was in effect Section ill, Division 1, Classes 2 g, g, and 3 Revision 23 of this guide.
~
1.84-13
Code Case R383 was acceptaba subject to the follow- by Code Case N-420). (5) This Code Case is not ing condition in addition te, those conditions specified applicable to piping in which stress corrosion crack-in the Code Case: Applicants wt o apply the provi- ing has occurred unless a case-specific evaluation is ;
sions of this Case to permit mats tial manufacturers made and is reviewed by the NRC staff. j to weld repair austenitic forgings Wthout re solution '
heat treatment should provide justification to the NRC 4. Code Cases for Class I components that are not staff (via the Safety Analysis Report) why this is on the approved list of this guide (paragraph C.1) or ecceptable for their applications, including their other regulatory guides, or for which authorization by evaluation of the susceptibility for stress corrosion the Commission has not been granted, are not accept-cracking. able for Class I components.
I 09-17-84 Alternative Damping Values for N-411 5. Code Cases for other classes of components that 02-20-86 Seismic Analysis of Classes 1, 2, are not on the approved list of this guide (paragraph and 3 Piping Sections, Section ill, C.1) or other regulatory guides should be considered not ;
Division I acceptable on a generic basis. j Code Case N-411 was acceptable subject to the follow- D. IMPLEMENTATION ing conditions in addition to those conditions specified in the Code Case: (1) The damping values specified The purpose of this section is to provide information may be used in analyzing piping response for seismic to applicants regarding the use of this regulatory guide.
and other dynamic loads being filtered through build-ing structures provided response mode frequencies are 1. Except for those Code Cases that have been annulled limited to 33 llz and below. Within this range, the by action of the ASME, the NRC staff has found the !
Code Case damping should be used completely and Code Cases listed in this regulatory guide under regula- I consistently, if used at all. (For equipment other than tory position C.1 acceptable for appropriate use. Other l piping, the damping values specified in Regulatory Code .'ases may be considered for use in accordance Guide 1.61, " Damping Values for Seismic Design of with footnote 6 of the Codes and Standards rule, Nuclear Power Plants," should be used.) (2) The 50.55a of 10 CFR Part 50.
damping values specified may be used only in those analyses in which current seismic spectra and proce- 2. Components ordered to a specific version of a dures have been employed. Such use should be limited Code Case need not be changed because a subsequent only to response spectral analyses (similar to that used revision to the Code Case is listed as the approved in the study supporting its acceptance - Reference version in this guide.
NUREG/CR-3526). The acceptance of the use with other types of dynamic analyses (e.g., time-history A Components ordered to a Code Case that was analysis) is pending further justification. (3) When previously approved for use need not be changed be-used for reconciliation work or for support optimiza- cause the Code Case has been subsequently annulled.
tion of existing designs, the effects of increased motion on existing clearances and on line mounted 4. Code Cases on the approved list may be applied quipment should be checked. (4) This Code Case is to components that were in p ocess of construction not appropriate
- for' analyzing the dynamic response prior to the effective date of tat Code Case within the of piping systems using supports designed to dissipate limits specified in the Crde Case and applicable regula-energy by yielding (i,e., the design of which is covered tions or recornmended it, other regulatory guides.
O 1.84-14 L ___-_-_-__ - ___ _ _ _ _______-_-___ - -__ ____-_ - ___-_ -__ _ -_____ -_______ ___
7,
( APPENDIX
\
NUMERICAL LISTING OF CODE CASES
- l N-31-1 N-240 N-345-1 i N-55 1 N-241 N 357 I
l N-62-4 N-243 N-362 2 1630-1 (N-66-1) N-24 7 N-368 1720-2 (N-106-2) i N-260 2 N-369 i N-1194 N-262 N-391 1745 (N 122) N 282 N-392 l N-133-3 N-284 N-393 i N-154-1 N-292 N-394 1792-2 (N-155-2) N-304-3 N-397 i N-160-1 N-309-1 N-410 N-192 2 N-313 N-4Il 1 l N-196 -1 N-315 N-412 N-215 N-316 N-413 N-217-1 l N 318-3 N-414 l N-229 N-319 N-420 N-233 N-328 N-430 l N 237-2 N-341
- Code Case 1625 was inadvertently listed in the appendix of Regulatory Guide 1.84, Revision 1. This Code Case is covered in Regulatory Guide 1.55 Revision 1.
FN Code Case I$7$ is a Section Vill Case and therefore has been eliminated from this
[ regulatory guide, which covers Section Ill Cases.
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l 1.84-15
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' NUCLEAR REGULATORY COMMIS$10N '08'*8j,6j'c' 8 o WASHINGTON, D..C. 20555 PERM!T No. G E7 OFFICIAL BUSINESS l PENALTY FOR PRIVATE USE, $300 0
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