ML20205Q416
| ML20205Q416 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 03/31/1986 |
| From: | Palusamy S WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP. |
| To: | |
| Shared Package | |
| ML20205Q374 | List: |
| References | |
| WCAP-11064, NUDOCS 8605280286 | |
| Download: ML20205Q416 (148) | |
Text
-
WESTINGHOUSE CLASS 3 CUSTOMER DESIGNATED DISTRIBUTION WCAP 11064 1
i 3
HANDBOOK ON FLAW EVALUATION FOR BYRON UNITS 1 AND 2 STEAM GENERATORS AND PRESSURIZERS March 1986 i
4 Y. S. Lee j
W. H. Bamford 4
APPROVED: g, S W
- 1. S. PalA ady, Manager
~
Structfal Materials Engineering i
Although information contained in this report is nonproprietary, no distribution shull be made outside Westinghouse or its licensees without the customer's approval.
WESTINGHOUSE ELECTRIC CORPORATION i
Nuclear Energy Systems P.O. Box 355 Pittsburgh, Pennsylvania 15230 l
A E
PD G
EXECUTIVE
SUMMARY
This handbook has been prepared to allow quick, yet accurate, assessment of indications which may be discovered during inservice inspections of the Byron Units 1 and 2 steam generators and pressurizers. This assessment capability is provided in the fortn of charts for selected regions of the steam generators and pressurizers. These are contained in Appendix A of this docunent. Appendix A begins with a simple example demonstrating use of the evaluation charts, followed by a section for each region of the steam generator and pressurizer.
Appendix A has been structured identically to the technical basis docunent [1], where details of the derivation of the charts are provided. The main body of the handbook provides brief stanmaries of the
' various calculations carried out in developing the charts. To evaluate the acceptability of an indication, the user may proceed directly to Appendix A.
r iii
TAELE OF C0!rfEhTS SECTI0h TITLE PAGE EXECUTIVE SUI 9tARY iii 1
INTRODUCTION 1-1 1.1 CODE ACCEPTANCE CRITERIA 1-2 1.1.1 Criteria Based en Flaw Size 1-3 1.~1.2 Criteria Based on Stress Intensity Factor 1-3 1.1.3 Primary Stress Limits 1-4
- 1. 2 SCOPE 1-5 1
2 LOAD CONDITIOt;S 2-1 3
FATIGUE CRACK GFO'<.TH 3-1 i
4 CR]7) CAL FLAW SIZE CALCULATJ0lsE 4-1 l
4.1 IhTRODUCTION 4-1
{
4.2 STRESS IhTENSITY FACTOR CALCULATIONS 4-1 4.3 FRACTUFE TOUGHbESS 4-2 4.4 PESULTS 4-2 5
RFFERENCFS 5-1 4
V
- ~.
TABLE OF C0!ITEf.TS (2 of R)
SECTION TITLE PAGE APPENDIX A FLAW EVALUATION A-1 A-1 IhTRODUCTION TO EVALUATIO!! PROCEDURE A-1 A-2 TUBE SHEET-CHANNEL HEAD WELD REGION OF THE STEAM A-11 GENERATOR (SGC-01) i A-3 TUBESHEET-STUB BARREL OF THE STEAf1 GENERATOR A-25 (SGC-02)
A-4 FEEDWATER N022LE OF THE STEA!! GENERATOR (SGN-02)
A-33 A-5 STUB BARREL IhTERVIDII.TE SEAM WELD OF THE STEAM A-46 GE!IERAT0h (SGC-03)
^
A-6 LOUER SHELL-CONE UELD OF THE STEAM GEf;ERATOR (SGC-05)
A-7 UPPER SHELL-C0hE UELD OF THE STEAM GE!;ERATOR A-71 (SGC-06) l A-8 UPPER SHELL-DOME WELD OF THE STEAM GE!?ERATOR A-81 (SGC-OS)
A-9 LQER MIDDLE SHELL LONGITUDIfJAL WELD OF THE A-95 PRESSURIZER (PLO2)
A-10 UPPER l-IIDDLE SHELL TO LGER MIDDLE SHELL WELD A-106 (PC03) Al?D UPPER SHELL TO UPPER MIDDLE SHELL WELD (PC04) 0F THE PRESSURIZEF i
vi
LIST OF FIGURES Finure Title Eagt 1-1 Schematic Representation of Appendix A 1-6 Flaw Evaluation 1-2 Schematic of Byron Units 1 and 2 Model 1-7 D-5 Steam Generator 1-3 Schematic of Byron Unit 2 D--84 Series 1-8 Pressurizer 1-4 Typical Notations of Surface and Embedded 1-9 Flaw Indications 3-1 References Fatigue Crack Growths Curves 3-3 for Carbon and Low Alloy Feritic Steels A
.1 Examples of Surface Flaw Treatment A-8 A-1.2 Example of Embedded Flaw Treatment A-9 A-1.3 Acceptance Standards for Embedded Flaws A-10 From Tables IWB-3511-1 A-2.1 Geometry and Terminology for Flaws at the A-14 Tubesheet-Channel Head (SGC-01)
A-2.2 Surface Flaw Evaluation Chart for A-15 Longitudinal Flaws at the Inside Surface of the Tubesheet Channel Head Junction (SGC-01 A-2.3 Surface Flaw Evaluation Chart for A-16 Circumferential Flaws at the Inside Surface of the Tubesheet Channel Head Junction (SGC-01)
A-2.4 Test Temperature Determination Chart for A-17 Longitudinal Flaws at the Inside Surface of the Tubesheet Channel Head Junction (SGC-01) for Both Secondary Hydro and Leak Test A-2.5 Test Temperature Determination Chart for A-18 Circumferential Flaws at the Inside Surface of the Tubesheet Channel Head Junction (SGC-01) for Primary Hydro Test vii
LIST OF FIGURES (CONT)
Finure Title Eagtt A-2.6 Test Temperature Determination Chart A-17 for Circumferential Flaws at the Inside Surface of the Tubesheet Channel Head Junction (SGC-01) for Primary Side Leak Test A-2.7 Embedded Flaw Evaluation Chart for A-20 Longitudinal Flaws near the Inside Surface of the Tubesheet-Channel Head Junction (SGC-01)
A-2.8 Embedded Flaw Evaluation Chart for A-24 Circumferential Flaws near the Inside Surface of the Tubesheet Channel Head Junction (SGC-01)
A-2.9 Test Temperature Determination Chart for A-22 Longitudinal Flaws near the Inside Surface of the Tubesheet Channel Head Junction (SGC-01) for both Secondary Hydro and Secondary Side Leak Test A-2.10 Test Temperature Determination Chart for A-23 Circumferential Flaws near the Inside Surface of the Tubesheet Channel Head Junction (SGC-01) for Primary Hydro Test A-2.11 Test Temperature Determiniation Chart for A-24 Circumferential Flaws near.ae Inside Surface of the Tubesheet Channel Head Junction (SGC-01) for Primary Side Leak Test
/*
/
A-3.1 Geometry and Terminology for Flaws at the A-27 Tubesheet - Stub Barrel (SGC-02)
A-3.2 Surface Flaw Evaluation Chart for A-28 Circumferential Flaws at the Inside Surface of the-Tubesheet - Stub Barrel Weld A-3.3 TestTemperatureDetermina(ionChartfor A-29 Circumferential Flaws at the Inside Surface of the Tubesheet - Stub Barrel Weld for Secondary Hydro Test A-3.4 Test Temperature Determination Chart for A-30 Circumferential Flaws at the Inside Surface of the Tubesheet - Stub Barrel Weld for Secondary Leak Test viii
LIST OF FIGURES (CONT)
Finure Title Eagg A-3.5 Embedded Flaw Evaluation Chart for A-31 Circumferential Flaws in the Tubesheet to Stub Barrel Weld Region (SGC-02).
A-3.6 Test Temperatures Determination Chart for A-32 Embedded Circumferential Flaws in the Tubesheet Stub Barrel Weld for Secondary Hydro Test.
A-4.1 Geometry and Terminology for Flaws at the A-36 Feedwater Nozzle Sheel (SGN-02)
A-4.2 Surface Flaw Evaluation Chart for A-37 J
Circumferential Flaws at the Inside Surface of the Feedwater Nozzle A-4.3 Surface Flaw Evaluaton Chart for A-38 Circumferential Flaws at the Outside Surface of the Feedwater Nozzle A-4.4 Test Temperature Determnation Chart for A-39 Circumferential Flaws at Both Inside and Outside Surface of the Feedwater Nozzle for the Secondary Hydro Test A-4.5 Test Temperature Determination Chart for A-40 Circumferential Flaws at the Inside Surface of Feedwater Nozzle for the Secondary Leak Test A-4.6 Test Temperature Determination Chart for A-41 Circumferential Flaws at the Outside Surface of Feedwater Nozzle for Seconary Leak Test A-4.7 Embedded Flaw Evaluation Chart for A-42 Circumferential Flaws near the Inside Surface of the Feedwater Nozzle A-4.8 Embedded Flaw Evaluation Chart for
-43 Circumferential near the Outside Surface of the Feedwater Nozzle A-4.9 Test Temperature Determination Chart for A-44 Circumferential Dmbedded Flaws in the Feedwater Nozzle for the Secondary Hydro Test ix
s I
~ '. ;
s.
LIST OF FIGURES (CONT)
"Finure Title fagg.
, A-4.10 Test Temperature Detemination Chart for A-45 Circumfere6tial hbedded F. laws in the Feedwater Nozzle-for secondary Leak Test A-5.1
'[
Geometry and Terminology for Flaws at Stub A-49 Barrel Intemediate Seam (SGC-03)
A-5.2 Surface Flaw Evaluation Chart for A-50 Circumferentfal Flawe at the Inside Surface of the Stub Barrel Intennediate Seam Weld (SGC-03)
A-5.3 Test Temperature Datencination Chart for A-51 x.
Circumferential haws at the Inside Surface
'of the Stub Barrel Intermediate Seam Weld
+
s
(
\\ '(SGC-03)forSeconparyHydroTest A-5.4 s Test Temperature Determination Chart for A-52 Circumferential Flaws at the Inside Surface s
of the Stub Barrel Intemediate Seam Weld 3
(SGC-03) for Secondary; side Leask Test i
s s.
Ad.5 : i Embedded Flaw Evaluation Chart for A-53
^'
s Circumferential Errioedded Flaws near the 1
Inside Surface of the Stub Barrel Intemediate Seam A-5.6 Test Temperature Deteimination Chart for A-54 Circumferential Embedded Flaws near the Inside Surface of the Stub Barrel Intemediate Sean; for Secondary Hydro Test t
A-5.7 Test Temperature Detent.ination Chart for A-55 Circumferential Embedded Flaws near the 2
Inside Surface of the Stub Barrel Intemediate seam for Secondary Leak Test A-6.1 '
Geometry and Terminology for Flaws at Lower A-59 3.
Snell-Cone Weld (SGC-05) c,
I A-6.2 Surface Flaw Evaluation Chart for A-60 Circumferential Flaws at the Inside Surface of the Lower Shell-Cone Weld of the Steam Generator (SGC-05)
'A-6.3 Surface Flaw Evaluation Chart for A-61 Circumferential Flaws at Outside Surface of the Steam Generator (SGC-05).
t
~p(
-t l
- w. 2
LIST OF FIGURES Finures Titles Pages A-6.4 Test Temperatures Determination Chart for A-62 Circumferential Flaws at the Inside Surface of Lower Shell-Cone Weld of the Steam Generator (SGC-05) for Secondary Hydro Test A-6.5 Test Temperature Detenmination Chart for A-63 Circumferential Flaws at the Outside Surface of Lower Shell-Cone Weld of the Steam Generator (SGC-05) for Secondary Hydro Test A-6.6 Test Temperature Determination Chart for A-64 circumferential Flaws at the inside Surface of the Lower Shell-Cone Weld of the Steam Generator (SGC-05) for Secondary Leak Test A h.7 Test Temperature Detenmination Chart for A-65 Circumferential Flaws at the outside Surface of the Lower Shell-Cone Weld of the Steam Generator (SGC-5) for Secondary Leak Test A-6.8 Bnbedded Flaw Evaluation Chart for A-66 Circumferential Flaws in the Lower Shell-Cone Weld of the Steam Generator (SGC-05)
A-6.9 Test Temperature Detamination Chart for A-67 Circumferential Flaws near the Inside Surface of the Lower Shell-Cone Weld of Steam Generator (SGC-05) for Secondary Hydro Test A-6.10 Test Temperature Detamination Chart for A-68 Circumferential Flaws near the Outside Surface of the Lower Shell-Cone Weld of Steam Generator (SGC-05) for Secondary Hydro Test A-6.11 Test Temperature Detamination Chart for A-69 Circumferential Flaws near the Inside Surface of the Lower Shell-Cone Weld of Steam Generator (SGC-05) for Secondary Leak Test A-6.12 Test Temperature Detamination Chart for A-70 Circumferential Flaws near the Outside Surface of the Lower Shell-Cone Weld of Steam Generator (SGC-05) for Secondary Leak Test A-7.1 Geometry and Terminology or Flaws at Upper A-74 Shell Cone Weld of Steam Generator (SGC-06) xi
LIST OF FIGURES Firures Title faga A-7.2 Surface Flaw Evaluation Chart for A-75 Circumferential Flaws at the Inside Surface of the U per Shell-Cone Weld of the Steam Generator E -06)
A-7.3 Test Temperature Determination Chart for A-76 Circumferential Flaws at the Inside-Outside Surface of the Upper Shell-Cone Weld of the Steam Generator (SGC-06) for Secondary Hydro Test A-7.4 Test Temperature Determination Chart for A-77 Circumferential Flaws at the Inside Surface of the Upper Shell-Cone Weld of the Steam Generator (SGC-06) for Secondary Leak Test A-i.5 Embedded Flaw Evaluation Chart for A-78 Circumferential Flaws in the Upper Shell-Cone Weld of the Steam Generator (SGC-06)
A-7.6 Test Temperature Determination Chart for A-79 Circumferential Embedded Flaws in the Upper Shell-Cone Weld of the Steam Generator (SGC-06) for Secondary Hydro Test A-7.7 Test Temperature Determination Chart for A-80 Circumferentail Embedded Flaws in the Upper Shell-Cone Weld of the Steam Generator (SGC-06) for Secondary Leak Test A 8.1 Geometry and Terminology for Flaws at Upper Shell A-8a Dome Weld of the Steam Generator (SGC-08)
A-8.2 Surface Flaw Evaluation Chart for Circumferential A-85 Flaws in the Upper Shell-Dome Weld of the Steam Generator (SGC-08)
A-8.3 Test Temperature Determination Chart for A-86 Circumferential Flaws at the Inside Surface of the Upper Shell-Dome Weld of the Steam Generator (SGC-08) for Secondary Hydro Test A-8.4 Test Temperature Determination Chart for A-87 Circumferntial Flaws at the Outside Surface of the Upper Shell-Dome Weld of the Steam Generator (SGC-08) for Secondary Hydro Test xii
LIST OF FIGURES Firures Title faga A-8.5 Test Temperature Determination Chart for A-88 Circumferential Flaws at the Inside Surface of the Upper Shell-Dome Weld of the Steam Generator (SGC-08) for Secondary Leak Test A-8.6 Test Temperature Determination Chart for A-89 Circumferential Flaws at the Outside Surface of the Upper Shell-Dome Weld of the Steam Generator (SGC-08) for Secondary Leak Test A-8.7 Embedded Flaw Evaluation Chart for A-90 circumferential Flaws in the Upper Shell-Dome Weld of the Steam Generator (SGC-08)
A-8.8 Test Temperature Determination Chart for A-91 Circumferential Flaws at the Inside Surface of the Steam Generator for the Secondary Hydro Test A-8.9 Test Temperature Determination Chart for A-92 Circumferential Flaws at the Outside Surface of the Upper Shell-Dome Weld of Steam Generator for the Secondary Hydro Test A-8.10 Test Temperature Determination Chart for A-93 Circumferential Flaws at the inside Surface of the Upper Shell-Dome Weld of the Steam Generator for the Secondary Leak Test A-8.11 Test Temperature Determination Chart for A-94 Circumferential Flaws at the Outside Surface of the Upper Shell-Dome Weld of Steam Generator for the Secondary Leak Test A-9.1 Geometry and Terminology for Flaws at Lower Middle A-98 Shell Longitudinal Weld (PLO2)
A-9.2 Surface Flaw Evaluation Chart for Longitudinal A-99 f].aws at the Inside Surface of the Lower Middle Shell Longitudinal Weld (PLO2) of the Pressurizer (Covered by Water Case)
A-9.3 Surface Flaw Evaluation Chart for Longitudinal A-100 Flaws at the Inside Surface of the Lower Middle Longitudinal Weld (PLO2) of the Pressurizer for (Uncovered by Water Case)
A-9.4 Test Temperature Determination Chart for A-101 Longitudinal Surface of the Lower Middle Longitudinal Weld (PLO2) of the Pressurizer for Primary Hydro Test xiii
LIST OF FIGURES Firures Title faga A-9.5 Test Temperature Determination Chart for A-102 Circumferential Flaws at the Inside Surface of the Lower Middle Shell Longitudinal Weld (PLO2) of the Pressurizer for Primary Side Leak Test A-9.6 Enbedded Flaw Evaluation Chart for Longitudinal A-103 Flaws in the Lower Middle Shell Longitudinal Weld (PLO2) of the Pressurizer A-9.7 Test Temperature Determination Chart for A-104 Longitudinal Flaws in the Lower Middle Shell Longitudinal Weld (PLO2) of the Pressurizer for Primary Hydro Test A-h.8 Test Temperature Determination Chart for A-105 Circumferential Flaws in the Lower Middle Shell Longitudinal Weld (PLO2) of the Pressurizer for Primary Side Leak Test A-10.1 Geometry and Terminology for Flaws at Upper A-108 Middle Shell to Lower Middle Shell to Lower Middle Shell Weld (PCO3) and Upper Shell to Upper Middle Shell Weld (PC04)
A-10.2 Surface Flaw Evalation Chart for Circumferential A-109 Flaws at Inside Surface of Upper Middle Shell to Lower Middle Shell Weld (PC03) and Vocer Shell to Middle Shell Weld (PC04) of the Pressurizer A-10.3 Test Temperature Determination Chart for A-110 Circunferential Flaws at the Upper Middle Shell to Lower Middle Shell Weld (PCO3) and the Upper Shell to Upper Middle Shell Weld (PC04) of the Pressurizer for Primary Hydro Test A-10.4 Test Temperature Determination Chart for A-111 Circumferential Flaws at the Upper Middle Shell Weld (PC03) and the Upper Shell to Upper Middle Shell Weld (PC04) of the Pressurizer for Primary Side Leak Test A-10.5 Embedded Flaw Evaluation Chart for A-112 Circumferential Flaws at the Upper Middle Shell to Lower Middle Shell Weld (PCO3) and the Upper Shell to Upper Middle Shell Weld (PC04) of the Pressurizer xiv
LIST OF FIGURES Finures Title g
A-10.6 Test Temperature Detennination Chart for A-113 Circumferential Flaws at the Upper Middle Shell to Lower Middle Shell Weld (PCO3) and the Upper Shell to Upper Middle Shell Weld (PC04) of the Pressurizer for Both Prinary Hydro and Primary Side Leak Test l
XV
SECTION 1 INTRODUCTION This flaw' evaluation handbook has been designed for the evaluation of indications which may be discovered during inservice inspection of the Byron Units 1 and 2 steam generators and pressurizers. The tables and charts provided in the Appendix of this report allow the evaluation of any indication discovered in the regions listed below without fbrther fracture mechanics calculations. 'Ihe fracture analysis work has instead been done in advance, in accordance with the criteria of Section XI [2], and is documented in a companion background and technical basis report [1]. Use of the handbook will allow the acceptability of much larger indications than would be allowable by only using the standard tables of Section "XI.
A schematic representation of the flaw evaluation process of Section XI Appendix A is provided in Figure 1-1.
The handbook is applicable to low alloy steel base metal and welds in the following locations in the Byron Units 1 and 2 steam generators and pressurizers.
The geometry of each of these regions is shown in Figures 1-2 and 1-3, and repeated at the appropriate section of the Appendix.
The steam generator:
o Tubesheet to channel head weld region (seam SGC-01) o Tubesheet to stub barrel weld region (SGC-02) o Stub barrel intennediate seam (SGC-03) o Lower shell to cone weld region (SGC-05)
Upper shell to cone weld region (SGC-06) o o
Upper shell to dome weld region (SGC-08) o Feedwater nozzle to shell weld region (SGN-02)
The pressurizer:
o Upper shell to upper middle shell weld (seam PC04) o Upper middle she:1 to lower middle shell weld (PC03) o Lower middle shell longitudinal we3d (PLO2) e use of the term "fisw" in this document should be taken to be synonymous with the term " indication" as used in Section XI of the ASME Code 1-1
The highlight of the hindbook is the design of a s: ries of flaw evaluntion ch:rts for both surface flaws and the embedded flaws. Since the characteristics of the two types of flaws are different the evaluation charts designed for each are distinctively different in style. The evaluations are organized according to the location in the generator and pressurizer, as listed above, and for each location charts are provided for both surface and embedded flaws. Examples have also been provided in the introductory section of the Appendix.
The flaw evaluation charts were designed based on the Section XI code criteria of acceptance for continued service without repair, as contained in paragraph IWB 3600. Through use of the charts, a flaw can be evaluated by code analytical criteria instantaneously, and no follow-up hand calculation is required. Most important of all, no fracture mechanics knowledge is needed by the user.
The flaw evaluation charts are provided in Appendix A of this document, and the section numbers are consistent with those of the technical basis document [1]. The notation used for both surface and embedded flaws in this work is illustrated in Figure 1-4, and is repeated in each section of the Appendix. For flaw evaluation of an indicaticn discovered in an inspection, turn directly to the Appendix.
1.1 CODE ACCEPTANCE CRITERIA There are two alternate sets of flaw ~ acceptance criteria are for continued service without repair in paragraph IWB-3600 of ASME Code Section XI. Namely, 1.
Acceptance Criteria Based on Flaw Size (IWB-3611) 2.
Acceptance Criteria Based on Stress Intensity Factor (IWB-3612)
Both criteria are comparable in accuracy for thick sections, and the acceptance criteria (2) have been assessed by past experience to be less restrictive for thin sections, and for outside surface flaws in many cases. In all cases in this handbook, the most beneficial criterion has been used. All the embedded flaw evaluation charts in this handbook were constructed using acceptance criteria (2),
for ease of use, as well as to obtain the maximum benefit, since these criteria will generally be less restrictive for embedded flaws.
1-2 I
1
1.1.1 CRITERIA BASED ON FLAW SIZE The code acceptance criteria are stated in IWB-3611 of Section XI. Namely, a
.1 a For Nomal Conditions I
C (Upset & Test Conditions Inclusive) and a
.5 a For Faulted Conditions p
f (Emergency Condition Inclusive) where p=
The maximum size to which the detected flaw is calculated to grow a
at the end of the design life, or till the next inspection time, as applicable, The minimum critical flaw size under normal operating conditions a =
c (upset and test conditions inclusive) 3=
The minimum criticel flaw size for initiation of nonarresting a
growth under postulabM faulted conditions.
(emergency conditions inclusive)
To determine whether a surface flaw is acceptable for continued service without repair, both criteria trust be met sirrultaneously. However, both criteria have been considered in advance in construction of the charts hersin. Only the most restrictive results were used in these charts.
1.1.2 CRITERIA BASED ON STRESS INTENSITY FACTOR The tem stress intensity factor (K ) is defined as the driving force on a crack.
y It is a function of the size of the crack and the applied stresses, as well as the overall geometry of the structure. In contrast, the fracture toughness (K,, K,)
y 7
is a measure of the resistance of the material to propagation of a crack. It is a material property and a function of temperature.
1-3
The criteria from IWN3612 of Section XI are:
KIa Ky < /10 for normal, upset, and test conditions.
K y < /2Ic for emergency and faulted conditions.
K where K
=
,y The maxinum applied stress intensity factor for the flaw size a to f
which a detected flaw will grow, during the conditions under consideration, to the next inspection.
K, g
Fracture toughness based on crack arrest for the corresponding cracktip
=
temperature.
K
=
Ic Fracture toughness based on fracture initiation for the corresponding crack tip temperature.
To determine whether a surface flaw is acceptable for continued service without repair, both criteria must be met simultaneously. However, both criteria have been considered in advance when the charts herein were constructed. Only the most restrictive results were used in these charts.
1.1.3 PRIMARY STRESS LIMITS In addition to satisfying the fracture criteria, it is required that the primary stress limits of Section III, paragraph NB 3000 be satisfied. A local area reduction of the pressure retaining membrane must be used, equal to the area of the indication, and the stresses increased to reflect the srtaller cross section. All the flaw acceptance tables provided in this handbook have included this consideration as dernonstrated in the technical basis doctanent [1].
1-4
1.2 SCOPE OF 1HIS WORK Finite element stress analyses of the Byron Units 1 and 2 steam generators and pressurizers under various transients were perfonned by Westinghouse, Nuclear Components Division, Advanced Engineering Analysis Group, Pensacola, Florida for the Commonwealth Edison Company (see the list of references). Fracture mechanics cnalyses were perfonned for various aspect ratios of both surface and embedded flaws using the results of stress analyses associated with emergency, faulted, normal, upset and test conditions. Based on the results of the fracture mechanics Cnalyses surface flaw and embedded flaw charts have been developed.
The fracture and fatigue crack growth evaluations carried out to develop the handbook charts have employed the recommended procedures and material properties for low alloy steels, as contained in Section XI, Appendix A.
1-5
~
Componeret System Must be Transients -
m aned, e
Espected l
Replaced, or l
After Flaw Discovery Resect ghtwed Repect h
No No i
FatM3ue e.#.;';, d c'O ---if,fsil:-- ac>%
n
.I > 2., Fa
. = op.E0'. rat i-3" e
(t EFMI N
Next Lispection m
N h and Mic Kin "la Curve
- A, rest S,r,a.es, Smatiest Curve
- CreecM Flow Fracture Coteca Flaw Fractisre 3,,, go, i
Wh*"'C' Wh8'wes Sete tne (a )-
=
=
c
__., Accident la,)
i Severest
,y]
Normal. Upset Anahses Condetsons 3,,,,,,,
Nntmal.
Test Cnnrfilets LEF M) g,,,,,,
Accedent.
i Trans ent Condit.ori W'thout Arrest Must Arrest Wittwn 75% of WaN itwchness Enhanced Nondestructive Examennhon i
(
Figure 1-1 Schematic representation of Appendix A flaw evaluation process i
(
Uppershell-dome (SGC-08)
U U
Upper shell-cone (SGC-06)
Lowershell-cone (SGC-05)
Stub barrel intemediate seam (SGC-03)
Feedwater nozzle-shell (SGN-02)
( 1_
Tubesheet-stub barrel (SGC-02)
Tubesheet-channel head (SGC-01) s Figure 1-2 Schematic of Byron Unit 1 Model D-5 Steam Generator 1-7
y Upper Head to
- 8 Upper Shell Weld D
m Upper Shell to
,g,,
Upper Middle Shell
. Weld c
Ptes Upper Middle Shell to Lower Middle Shell 1
Weld O
Lower Middle Shell p,n Longitudinal Weld Lower Middle Shell to Lower Shell Weld A
r Lower Shell to
// "' ' '
Bottom Head Weld t
I 1
Figure 1-3 Schematic of Byron Unit 20-84 Pressurizer
~. - d
Figure 1-4 Typical Notations of Surface and Embedded Flaw Indications Irrital % rfH e Typical tutedded f law Indstat ense gg,g,ggg,g,,,,
l tiell Ihlttmess,t tielt Thictness,t
=
i i
~w.
f.
~
le 7 7
e g
a (D
1 r
1_
( )._I I
s-a
,rI l
Surface (Clad-BaseMetal !
Interface for Indications Near Inside Surface).
x1 v
Surface (Clad-Base Metal Interface for Indications Near Inside Surface).
i i
6 w
SECTION 2 LOAD CONDITIONS i
The transients for the steam generator are tabulated in Table 2-1 and those for the pressurizer are given in Table 2-2.
Both the minimum critical flaw sizes, for criteria (1) of IWB-3611, and the stress i
intensity factors, for criteria (2) of IWB-3612, are a function of the stresses at the cross-section where the flaw of interest is located.
Therefore, the first step in the construction of the charts for the evaluation of a flaw indication is to determine the appropriate limiting load conditions for the location of interest.
The most limiting transient under normal (upset and test conditions inclusive) and faulted conditions (emergency. condition inclusive) for the locations of the steam generator and pressurizer covered by this handbook have been identified in tables contained in the technical basis document
[1].
The basis for the selection of the most limiting normal / upset / test conditions is straightforward. The transient with the highest surface stresses (thermal and pressure stresses combined) in the region of the indication was chosen as the worst case. For flaws near the outside surface of the vessel separate considerations are required, since most of the thermal transients affect the inside surface, not the outside surface, which is insulated. Therefore, allowable flaw indications at the inside surface are generally smaller than those on the outside surface, as may be seen in the individual charts to follow in the Appendix. The selection of the worst emergency / faulted transient was also based on the highest stresses, but combined with the lowest temperature. This has been discussed in detail in the Technical Basis document [1].
2-1
TABLE 2-1
SUMMARY
OF STEAM GENERATOR TRANSIENT GROUPING FOR FATIGUE ANALYSIS Transient Total Cycles Group Description Cycles In Group 1
No Load 220 220 2
Plant Loading /Unioading 0-15%
1500 1500 3
Full Load 13200 13200 i
4 Large Step Load Decrease
- 200 4350 Step Load Increase 2000 Step Load Decraase 2000 Loop Oct of Service-Shutdown 80 Loop Out of Service-Startup 70 Feedwater Cycling 2000 2000 6
Loss of Load
- 80 680 Loss of Power 40 Inadvertent Startup 10 Control Rod Drop 80 Partial Loss of Flow 80 Reactor Trip A 230 Reactor Trip B 160 i
7 Inadvertent RCS Depressuri:a: ion 20 30 Reactor Trip C 10 8
Excessive Bypass 7eedwa:::
- 23 90 l
Inadver:ent Safety :nje::irn 60 9
Bypass Line Temperin; Valve Tailu:2 20 20 i
l 2-2 l
TABLE 2-1 (cont'd)
Transient Total Cycles Croup Description Cycles In Group 10 Excessive Feedwater Flow 30 30 11 Primary Side Leak Test 200 200 12 Secondary Side Leak Test 80 80 13 Secondary Side Hydrotest 10 10 14 Tube Leak Test 840 psig
- 80 800 Tube Leak Test 600 psig 120 Tube Leak Test 400 psig 200 Tube Leak Test 200 psig 400 15 OBE 400 400
!!OTES:
Umbrella transient Transients not included have a negligible effect on the se condary side of the s team generator.
2-3
TABLE 2-2
SUMMARY
OF THE PRESSURIZER TRANSIENT FOR FATIGUE ANALYSIS Transient
- of Cycles Heatup 1200 Cooldown 1200 No Load 200 Full Load 13,200 Unit Lo ding 36,600 Turbine Roll Test 20 Step Load Increase 2000 Baron Concentration Equalization 26,400 Group #1 Umbrella 520 Inadvertent Startup of an Inactive Loop loss of Load Inadvertent S.I. Actuation large Step Load Decrease with Steam Dump Nonnal Loop Shutdown Normal Loop Startup Inadvertent Auxiliary Spray / Inadvertent RCS 10 Depressurization Inadvertent RCS Depressurization 540 OBE 400 Primary Side Hydrotest 10 Primary Side Leak Test 200 Secondary Side Leak Test 200 2-4
m
-+4 4
J
_._a-~
6 SECTION 3 FATIGUE CRACK GROWTH In applying code acceptance criteria as introduced in Section 1, the final flaw size a used in criteria (1) is defined as the minimum flew f
size to which the detected flaw is calculated to grow at the end of the design life, or until the next inspection time. In this handbook, inspection of every 10 years is assumed.
These crack growth calculations have been carried out for all the key regions in the Byron Units 1 and 2 steam generators and pressurizers.
This section will examine the calculations, and provide a brief description of the methodology used as well as the assumptions. A more detailed discussion is contained in the Technical Basis document [1].
The crack growth calculations reported here are extensive because a range of flaw shapes have been considered, to encompass the range of flaw shapes which could be encountered in service.
The analysis procedures involves postulating an initial flaw at specific regions and predicting the growth of that flaw due to an imposed series of loading transients. The input required for a fatigue crack growth analysis is basically the information necessary to calculate the parameter K, which depends on the crack and structure geometry and the y
range of applied stresses in the area where the crack exists. Once Ky is calculated, the growth due to that particular stress cycle can be calculated by equations given in Figure 3-1. This increment of growth is then added to the original crack size, and the analysis proceeds to the next transient. The procedure is continued in this manner until all the transients expected to occur in the period of evaluation have been analyzed.
3-1
The trcnsicnts consid; red in th2 analysis are all th2 d2cign trcnsisnto contained in the appropriate steam generator or pressurizer equipment specification, as shown in Section 2.
These transients are spread equally over the design lifetime of the vessel, with the exception that the preoperational tests are considered first. Faulted conditions are not considered because their frequency of occurrences is too low to affect fatigue crack growth.
Crack growth calculations for the steam generator and pressurizer were carried out for a range of flaw depths and three basic types. The first type was a surface flaw with length equal to six times it depth. The second was a continuous surface flaw, which represents a worst case for surface flaws. The third was an embedded flaw. For the Steam Generator, the length was assumed equal to three times its width (through wall dimension), while for the pressurizer the length was assumed equal to five times its width. This difference had little effect on the magnitude of crack growth calculated. For all cases the flaw was assumed to maintain a constant shape as it grew. The expressions used for calculating stress intensity factors for the various flaw types are documented in the technical basis document. [1]
The crack growth rate curves used in the analyses were taken directly from Appendix A of Section XI of the ASME Code. Water environment curves were used for all inside surface flaws, and the air environment curve was used for embedded flaws and outside surface flaws.
The reference crack growth curves for water environments are shown in Fig. 3-1 and growth rate is a function of both the applied stress intensity factor range, and the R ratio (Kmin#" max) f r the transient.
The crack growth rate reference curve for air environments is a single curve, with growth rate being only a function of applied K.
This reference curve is also shown in Figure 3-1.
This figure appeared in the 1980 edition of the ASME code, and review of current research results indicates it is unlikely to change for many years.
3-2
18904 1 1000
~
' LINEAR INTERPOLATlON 18
/
RECOMMENDED TO ACCOUNT 700 FOR RATIO DEPENDENCE OF
/
WATER ENVIRONMENT CURVES, 500 POR 0.25 < R < 0.e5 POR
[
f3 SHALLOW SLOPE:
sg<
- g. 0, x,0 i O, s-E:
G 4
J O = 3.75 R + 0.00 g4 u
2 g
,v g m
A"K E
f/g 8
[8 MIN MAX
/ *#
5 sus.suRrACE rLAW E
100 (AIR ENVIRONMENTI h
2 h = 10.0267x10'3 3.726 1/M j
g g
70 80 (OETERMINE THE AK AT WHICH THE LAW CHANOES BY CALCULATION OF THE INTERSECTION OF THE TWO CURVES) i SURFACE FLAWS
~
IWATER REACTOR l
ENVIRON muCA. MENT)
LE FOR
/
gg R < 0.25 -
w 10
- 0.25 < R < 02 -
R > 0.85-
- MIN #
E 7
MAX f
' LINEAR INTERFOLATION IS f
5 RECOMMENDED TO ACCOUNT k
I
'2 FOR R RATIO DEPENDENCE OF 5
WATER ENVIRONMENT CURVES, i
/
g FOR 0.m < R < 0.e5 FOR STEEP SLOPE:
a
~
h = 1.02 X 10 4 0 AK.95 5
g gjg 0, - as.eR. 5.nB a-xMIN= max f,
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I I I Illll 1
2 5
7 10 20 50 70 100 STRESS INTENSITY FACTOR RANGE (AKg (K81(IN.)
i FIG. 3-1 REFERENCE FATIGUE CRACK GROWTH CURVES FOR CARBON AND LOW ALLOY FERRITIC STEELS 3.:
...,___,,_._,-,_,m.mm,_,____,__,r.,,
SECTION 4 CRITICAL FLAW SIZE CALCULATIONS
4.1 INTRODUCTION
The key parameters used in the evaluation of any indications discovered during inservice inspection are two critical flaw parameters required for l
the evaluation of an indication in any given location. The first of these is calculated using stresses from governing nonna1, upset, and test conditions. The second is calculated based on stresses for the governing emergency and faulted conditions. The parameters based on these conditions correspond to the two ASME code criteria defined in Section i
1.1.1.
I
{
Critical flaw sizes were calculated for postulated inside surface semi elliptical flaws having a length equal to six times their depth. To allow the evaluation of indications of various shapes, critical flaw sizes are calculated for embedded flaws as well as surface flaws of other shapes. Critical flaw sizes were calculated for emergency and faulted as i
well as nonnal and upset conditions. Hydro and leak test conditions were I
considered separately, since their severity can be controlled by temperature.
The selection of the governing transient for emergency faulted, normal, l
upset, and test conditions can be done easily based on the results the available stress analyses. The details of this work are provided in the l
technical basis document [1]. In the Appendix of that document a table of the governing transients for each region is provided.
4.2 STRESS INTENSITY FACTOR CALCULATIONS One of the key elements of the critical flaw size calculations is the detennination of the driving force or stress intensity factor. This was
.fone for each of the regions using expressions available from the literature. In all cases the stress intensity factor for the critical flaw size calculations utilized a representation of the actual stress profile rather than a linearization. This was necessary to provide the i
4-1
i most accurata dztcrmination possible of the critical flaw size end is particularly important for consideration of emergency and faulted conditions, where the stress profile is generally nonlinear and often very steep.
4.3 FRAC 111RE TOUGHNESS i
The other key element in the detennination of critical flaw sizes is the fracture toughness of the material. The fracture toughness has been taken directly from the reference curves of Appendix A,Section XI. In the transition temperature region these curves can be represented by the following equations:
KIe = 33.2 + 2.806 exp. [0.02 (T-RTET + 100 F)]
K, = 26.8 + 1.233 exp. [0.0145 (T-RTET + 160 F)]
7 where K and K,are in ksi in.
Ic y
The upper shelf temperature regime requires utilization of a shelf toughness which is not specified in the ASME Code. A value of 200 ksi in has been used here. This value is consistent with general practice in such evaluations, as shown for example in reference [3] which provides the background and technical basis of Appendix A of Section XI. The value of RT used in these toughness equations was taken from the ET limiting properties of materials in both steam generator and pressurizer and these values are obtained directly from Nuclear Components Division, Pensacola, Florida. The limiting RT f r the steam generators was found NDT to be 40F for the base metal land 10F for the welds. For the messurizer, the limiting RT was found to be 60F for the base metal and 10F for the ET
- welds, i
4.4 RESULTS The results of the critical flaw size calculations are sunrnarized in tables provided in reference [1] for all the locations analyzed and all the types of flaws considered. These results are used along with the 42
l I
fatigua crack growth results, also summarized in ttbles provided in [1],
to detennine the size flaw which is acceptable based on the criteria of Section XI. These allowable flaw sizes are shown graphically for each region in Appendix A, with separate figures for surface and embedded flaws in each region.
4 43
SECTION 5 EEFERENCES s
- 1. Lee, Y.S. and Bamford, W.H, " Handbook on Flaw Evaluation for Byron Units 1 and 2 Steam Generators and Pressurizers" Westinghouse Electric Corporation, WCAP 11063 March 1986.
- 2. ASME Code Section XI, " Rules for Inservice Inspection of Nuclear Power Plant Components," 1974 Edition; 1983 edition (used for update code allowable limits); and 1980 edition (Winter 1981 Addendum) (for revised reference crack growth curves); 1980 edition (used updated proximity rules for embedded vs. surface flaws).
- 3. Marston, T. U. editor, " Flaw Evaluation Procedures, ASME Boiler and Pressure Vessel Code,Section XI," Electric Power Research Institute report EPRI-NP719SR, August 1978.
- 4. Byron Unit 2 Steam Generator Tubesheet to Channel Head Junction (SGC-01) Stresses AEA-85-129, July 31, 1985 (Axial Stress).
I
- 5. Bryon Unit 2 Steam Generator Tubesheet to Channel Head Junction (SGC-01) Stresses-AEA-85-132, August 6, 1985.
i
- 6. Central File - SM-7.2.4-CBE for Tubesheet-Stub Barrel Weld (SGC-02).
- 7. Byron Unit 2 Steam Generator Feedwater Nozzle to Shell Junction (SGN-02) Stresses, AEA-85-130, August 2,1985.
l
- 8. Byron Unit 2 Steam Generator Lower Shell to Stub Barrel (SGC-03) stresses, AEA-85-125, July 26, 1985.
- 9. Byron Unit 2 Steam Generator Lower Shell to Cone Junction (SGC-05) stresses, AEA-85-123, July 22, 1985.
- 10. Byron Unit 2 Steam Cenerator Upper Shell to Cone Junction (SGC-06) 5-1
stresses, AEA-85-124, July 24, 1985.
- 11. Byron Unit 2 Steam Generator Upper Head to Shell (SGC-08) stresses, AEA-85-126, July 29, 1985.
- 12. Byron Unit 2 Pressurizer for Longitudinal Weld Seam (PLO2) AEA-85-137, August 13, 19985 and AEA-85-1%, December 6,1985.
- 13. Byron Unit 2 Pressurizer Stresses for Circumferential Weld Seams (PC03 and PC04), AEA-85-196, December 6, 1985 and AEA-85-135, August 9, 1985.
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i 5-2 i
I i
APPENDIX A FLAW EVALUATION CHARTS
APPEi.' DIX A-1 ELAW EVAIBATI0fi A-1 IICRODUCTIONTOEVALUATIONPROCEDURE The evaluation procedures containeo in ASME Section XI are clearly specified in par graph IWB-3600. Use of the evaluation charts herein follows these procedures directly, but the steps are greatly simplified.
Onci the' indication.is discovered) it must be characterized as to its location, length (f) and depth dimension (a for surface flaws, 2a for embedded flaws),
including its. distance from the clad-base metal interface (S) for embedded indications. This characterization is discussed in further detail in paragraph IWA'3000 of Section XI.
Ih2 following parsneters must be calculated from the above dimensions to use the ch:rts (see Figure 1-4 in the main text):
a Flaw shape parameter, 7 o
Flaw depth pararneter, f o
4 o'*surfaceproximityparameter(forembeddedflawsonly),f g
~
where t=
wall thickness cf region where indication is located t=
length of indication a=
depth of surface flaw; or half depth of embedded flaw'in the width direction -
distance from flaw centerline to surface (for embedded 6 =
is flaw only) ( 6 = Sc + a)
S=
smallest distance from edge of embedded flaw to surface A-1 d
Once the above parameters have been detennined and the determination made as to whether the indication is embedded or surface, then the two parameters may be plotted directly on the appropriate evaluation chart.
Its location on the chart detennines its acceptability inanediately.
Tenortant Observations on the Handbook Charts Although the use of the handbook charts is conceptually straight forward, experience in their development and use has led to a number of observations which will be helpfbl.
Surface Flaws 4
An example handbook chart for surface flaws is shown in Figure A-1.1.
The flaw indication parameters (whose calculation is described above) may be plotted directly on the chart to detennine acceptability. The lower curve shown (labelled code allowable limit) is simply the acceptance standards from IWB
.3500, which are tabulated in Section XI.
If the plotted points fall below these lines, the indication is acceptable without analytical justification having been required. If the plotted point falls between the code allowable limit lines and the lines labeled " upper limits of acceptance by analysis" it is acceptable by virtue of its meeting the requirements of IWB 3600, which allow acceptance by fracture analysis.
(Flaws between these lines would, however, require future monitoring per IWB 2420 of Section XI). The analysis used to develop these lines is documented in the companion technical basis document [1]. There are three of these lines shown in the charts, labeled 10, 20 and 30 years. The years indicate for how long the acceptance limit applies from the date that a flaw indication is discovered, based on fatigue crack growth calculations.
As may be seen in Figure A-1.1, the chart gives results for surface flaw shapes up to a semi-circular flaw (ad = 0.5). For the unlikely occurence of flaws which the value of a/t exceeds 0.5, the limits on acceptance for a/f = 0.5 should be used. The upper limits of acceptance have been set at (a maximum of) twenty
~
percent of the wall thickness in all cases, as discussed in Section 5. of [1].
A-2
hhadded F1 mum An example chart for embedded flaws is shown in Figure A-1.2.
The heavy diagonal line in the figure can be used directly to deterinine whether the ibdication Chould be characterized as an embedded flaw or whether it is sufficiently close to the surface that it must be considered as a surface flaw (by the rules of Section XI). If the flaw parameters produce a plotted point below the heavy diagonal line, it is acceptable by analysis per [1] if the point is hela the cppropriate a/l limit line. If it is above the line, it cannot be justified by cnalysis, and is, therefore, not acceptable.
For cases where there are several acceptance limit lines, interpolation between adjacent lines is reconmended. A worked example is provided as embedded flaw cxample 5.
The outermost lines should be used as the limits, with no interpolation beyond them. For example, for a/l values greater than 0.333, use the line for a/f = 0.333 in the figure, and for a/C values less than 0.167, use the line for a/t = 0.167. Beyond these outer limits, the snalyses have shown that the sensitivity to flaw shape is small.
For cases where there are no branching limit lines below the heavy diagonal line (see Figure A-3.5 for example) then all flaws classified as embedded are cceeptable. The only limitation is, as discussed in Section 6 of reference [1];
f<0.25 Note that the embedded flaw evaluation charts are applicable for flaws near cither the inner or outer surface, and the parameters "S" and "6 a are defined frun the nearest surface.
Another important observation is the procedure to be used for an embedded flaw whose plotted point falls above the heavy diagonal line,and nust therefore be etnsidered a surface flaw. An example of this is provided in " Embedded flaw Example 1", but it is important to note that when this must be done, the depth of the flaw is redefined. The new depth is equal to 2a + S, as shown in the e.v.aple, which becomes the effective crack depth a' to be used in the surface i
flaw chart in tuch cases.
l A-3 l
The standards for flaw acceptance without analysis cannot be shown in the embedded fimw charts because of their generality. Therefore, they have been plotted separately in Figure A-1.3.
Note the change in standards with the 1980 code, when the standards became a function of the proximity to the surface, S.
General Observations Detailed examples of the use of the charts for both surface and embedded flaws are presented below, for the specific cross section. Some points are worthy of note for locations between the cross sections which have been analyzed. A flaw indication between these two cross sections should use acceptance criteria interpolated linarly between the two appropriate charts. Similar procedures should be followed for interpolation between other regions.
Surface Flaw Ernrnnie 1 Suppose an indication has been discovered which is a surface flaw and has the following characterized dimensions :
0.30 in.
a =
t = 1.5 in.
6.69 in.
t =
The flaw parameters for the use of the charts are l
{=0.045(4.50 f=0.20 Plotting these parameters on Figure A-1.1 it is quickly seen that the indication is acceptable by analysis per [1]. To justify operation without repair it is necessary to submit this plot along with the Technical Basis doctanent [1] to the regulatory authorities.
A-4
Fmhedded Finu Fvarnnle 1 A lcngitudinal embedded flaw on 1.75" x 5.00", located within 0.575" from the surface, was detected. Detennine whether this flaw should be considered as an embedded flaw.
2a =
1.75" S
=
0.575" 6
S + a = 0.575 + 1/2 (1.75) = 1.45"
=
6.69" t
=
l
=
5.0"
- cnd, 1/2 x 1.75" a
=
.875"
=
Uaing Figure A-1.2:
_ 0.875 = 0.13 a
t 6.69 f=
= 0.22 Since the plotted point (X) is above the diagonal line, the flaw must be considered a surface flaw. Now, since the flaw must be considered as a surface flaw, the deoth must be redefined as the distanca from the surface to the deepest point of the flaw. This is equivalent to circumscribing the embedded flaw with a semi-elliptic surface flaw. Operationally, the parameters are recalculated as follows. Defining a* as the corrected crack depth for the surfaco flaw, a' = 2a + S = 2.325" t = 5.0"
[=0.347
[=0.456 A-5
Refcrring to Figura A-1.1 for tha surfces flaw, it is quickly se:n that this ficw is much too large to be acceptable and must be repaired.
5%hadded Flaw Evnmnle 2 (Point A)
Suppose an indication has been discovered which is embedded, and has the following cheracterized dimensions:
2a = 1.0 in.
L
= 1.5 in.
t
= 9 16 in.
S
= 0.75 in.
Caldulating the flaw parameters, we have:
{
= 0.545 f
= 0.333 f=0.136 6
= S + a = 1.25 in, Plotting these parameters on the embedded flaw evaluation chart, Figure A-1.2 it may be quickly seen that the indication is embedded, and is acceptable by analysis (point A), since it lies below the a/ f = 0.333 limit case.
Fmhedded Finw Framnle ~4 (Point B)
Suppose an indication has been discovered which is embedded, and has the following characterized dimensions:
2a = 1.47 a = 0.73 f
= 2.20 t
= 9.16 S
= 1.33 Calculating the flaw parameters, we have:
{
= 0.08 a
- 0.33 6
= S + a = 2.06 f
= 0.225 A-6
l l
l Plotting th2se parameters en Figura A-1.2 (point B) w2 ses thIt ths indication is acc:ptable, since it falls below the line which is applicable to a/t = 0.333.
(Note that if a/t = 0.167, for example, the indication would not be acceptable,
' cince point B would lie above that line, as may be seen in the figure.)
F=hedded Finw Eramnle 4 (Point C)
A longitudinal embedded flaw of 1.15" x 5.38" was detected at e distance S =
1.075 in. underneath the surface. Evaluate the flaw for code acceptance for continued service without repair.
The flaw geometry paramcters are determined as follows:
t = 6.69" S = 1.075" 6 = S + a = 1.65" t = 5.38" cnd a = 1/2 x 1.15"
=.575"
(=(h)=0.248 a,
0.
5 = 0.107 5 = 0.086
=
Evaluate the flaw by referring to Fig. A-1.2 and plotting the point (as point C). This is above the code acceptance limit line for a/t = 0.167, which should clso be used for a/t < 0.167; therefore, the flaw is not acceptable, and must be repaired.
Nota:
The code acceptance lines become identical with the surface / embedded flaw demarcation line with which they link up at points near the surface.
Therefore, in Figure A-1.2 the code acceptance line for flaws near the surface, { 1ess than 0.125, is identical with the " surface / embedded flaw demarcation line up till 1980 Code".
A-7
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0.1 0.2 0.3 0.4 0.5 Fl'AW SHAPE (a//)
Figure A-1.1 Example of Surface Flaw Treatment
SURFACE / EMBEDDED
(
FLAW DEMARCATION l
LINE, BEGINNING WITH l
1980 CODE
^*
0.13
., d launa N
~!
FLAW DEMARCATION 0.12
._r r
/4 :,'. i
/-
- =
/:
LINE, UP TIL 1980 CODE l
- EMBEDDED FLAWS O.11
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i f:
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?!!::
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- ,f,..
- i/';
APPLICABLE a/l LINE) i-
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),
t
- 3f. ;i!.
ARE NOT ACCEPTABLE
.y. 7;;..
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- q..
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- i
- 'i
- EMBEDDED FLAWS IN
~ f"p THIS REGION ARE if.i
~!.-
P ACCEPTABLE PER if
~
CRITERIA OF IWB 3600 0.03 I b IF PLOTTED POINT FALLS f./
.:i-
.i-i BELOW THE APPLICABLE d-0.02
- i!
a/] LINE
[f
. ii-i.
0.01 g
- q
.:i -
n(
f i
0 0.05 0.10 0.15 0.20 0.25 DISTANCE FROM SURFACE ( )
Figure A-1.2 Example of Embedded Flaw Treatment A-9
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A-10
A-2 TUBESHEET-CHANNEL HEAD WELD REGION OF THE STEAM GENERATOR (SGC-01)
A-2.1 SURFACE FLAW (LONGITUDINAL AND CIRCUMFERENTIAL FLAW)
The geometry and terminology used for flaws in the SGC-01 region is depicted in Figure A-2.1.
The following parameters must be determined for surface flaw evaluation with the charts.
o Flaw shape parameter f o
Flaw depth parameter (
where a - the surface flaw depth detected, (in.)
4 - the surface flaw length detected, (in.)
t - wall thickness at the weld (t = 5.046")
The surface evaluation charts for this region are listed below:
Figure A-2.2 Surface Flaw Evaluation Chart for Longitudinal Flaws at the Inside Surface of the Tubesheet Channel Head Junction (SGC-01)
Figure A-2.3 Surface Flaw Evaluation Chart for Circumferential Flaws at the Inside Surface of the Tubesheet Channel Head Junction (SGC-01)
Figure A-2.4 Test Temperature Determination Chart for Longitudinal Flaws at the Inside Surface of the Tubesheet Channel Head Junction (SGC-01) for Both Secondary Hydro and Leak Test Figure A-2.5 Test Temperature Determination Chart for Circumferential Flaws at the Inside Surface of the Tubesheet Channel Head Junction (SGC-01) for Primary Hydro Test A-11
Figuro A-2.6 Tcst Temperature Detcrmin: tion Chart for Ciretaferentiel Flaws at the Inside Surface of the Tubesheet Channel Head Junction (SGC-01) for Primary Side Leak Test A-2.2 EMBEDDED FLAWS The geometry and terminology used for embedded flaws at SGC-01 is depicted in Figure A-2.1.
Basic Data:
t = 5.046 in.
6 = Distance of the centerline of the embedded flaw to the surface (in.)
a = Flaw depth (defined as one half of the monitor diameter) (in.)
L = Flaw length (Major diameter) (in.)
a
= Maximum embedded flaw size in depth direction, beyond which it must g
be considered a surface flaw, per Section XI characterization criteria The following parameters must be calculated from the above dimensions to use the charts for evaluating the acceptability of an embedded flaw Flawshapeparameter,f o
Flawdepthparameter,f o
Surfaceproximityparameter,f o
1 The embedded evaluation charts for the SGC-01 are listed below:
Figure A-2.7 Embedded Flaw Evaluation Chart for Longitudinal Flaws near the Inside Surface of the Tubesheet-Channel Head Junction (SGC-01)
Figure A-2.8 Embedded Flaw Evaluation Chart for Circumferential Flaws near the Inside Surface of the Tubesheet Channel Head Junction (SGC-01)
A-12
Figura A-2.9 Tcst Temper:tura Det:rminstion Chart for Longitudinal Flawa near the Inside Surface of the Tubesheet Channel Head Junction (SGC-91) for both Secondary Hydro and Secondary Side Leak Test Figure A-2.10 Test Temperature Determination Chart for Circumferential Flaws near the Inside Surface of the Tubesheet Channel Head Junction (SGC-01) for Primary Hydro Test Figure A-2.11 Test Temperature Determination Chart for Circumferential Flaws near the Inside Surface of the Tubesheet Channel Head Junction (SGC-01) for Primary Side Leak Test A-13
FIGURE A-2.1 Geometry and Terminology for Flaws at the Tubesheet-Channel Head (SGC-01) f L
/
l D
G a_
I SURFACE I
l FLAW AT Tubesheet O
sb1)
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(inside)
T = 5.046 s___
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EMBEDDED i
FLAW AT i
Tubesheet channel head l
Tubesheet-channel head (SGC-C1)
A (SGC-01)
(inside) 4L Ii S d' 46 c_
T =5.046 l
l A-14
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Figure A-2.2 Surface Flaw Evaluation Chart for Longitudinal Flaws at the Inside Surface of the Tubesheet Channel Head Junction (SGC-01)
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Figure A-2.3 Surface Flaw Evaluation Chart for Circumferential Flaws at the Inside Surface of the Tubesheet Channel Head Junction (SGC-01)
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Figure A-2.4 Test Temperature Detemination Chart for Longitudinal Flaws at the Inside Surface of the Tubesheet Channel Head Junction (SGC-01) for Both Secondary Hydro and Leak Test 4
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Figure A-2.5 Test Temperature Determination Chart for Circumferential Flaws at the Inside Surface of the Tubesheet Channel Head Junction l
(SGC-01) for Primary Hydro Test
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Figure A-2.6 Test Temperature Determination Chart for Ciretsnferential Flaws at the Inside Surface of the Tubesheet Channel Head Junction (SGC-01) for Primary Side Leak Test
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0 0.05 0.10 0.15 0.20 0.25 DISTANCE FROM SURFACE (f)
Figure A-2.8 Embedded Flaw Evaluation Chart for Ciretmiferential Flaws near the Inside Surface of the Tubesheet Channel Head Junction (SGC-01)
A-21
SURFACE / EMBEDDED FLAW DEM ARCATION LINE 0.13
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Figure A-2.9 Test Temperature Detennination Chart for Longitudinal Flaws near the Inside Surface of the Tubesheet Channel Head Junction (SGC-01) for both Secondary Hydro and Secondary Side Leak Test A-22
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Figure A-2,10 Test Temperature Detemination Chart for Ciretanferential Flaws near the Inside Surface of the Tubesheet Channel Head Junction (SGC-01) for Primary Hydro Test l
A-23
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Figure A-2.11 Test Temperature Determination Chart for Circumferential Flaws near the Inside Surface of the Tubesheet Channel Head Junction (SGC-01) for Primary Side Leak Test A-24 l
l l
A-3 TUBE SHEET-STUB BARREL WELD OF THE STEAM GENERA 70R (SGC-02)
A-3.1 SURFACE FLAWS The geometry and tenninology for surface flaws at the tube sheet-stub barrel weld region of the steam generator is depicted in Figure A-3.1.
The following parameters must be detennined for surface flaw evaluation with the charts Flawshapeparameter,f o
Flaw depth parameter, a o
{
where a = The surface flaw depth detected (in.)
f = The surface flaw length detected (in.)
t = Wall thickness at the weld (t = 3.13")
The surface flaw evaluation charts for this region are listed below Figure A-3 2 Surface Flaw Evaluation Chart for Circumferential Flaws at the Inside Surface of the Tubesheet - Stub Barrel Weld Figure A-3.3 Test Temperature Determination Chart for Ciretznferential Flaws at theInside Surface of the Tubesheet - Stub Barrel Weld for Secondary Hydro Test Figure A-3.4 Test Temperature Detennination Chart for Circumferential Flaws at the Inside Surface of the Tubesheet - Stub Barrel Weld for Secondary Leak Test A-25
A.3-2 EMBEDDED FLAWS The geometrical description of an embedded flaw at in this region is depicted in Figure A-3.1.
Basic Data:
3.13 in.
t =
6
= Distance of the centerline of the embedded flaw to the surface (in.)
Flaw depth (deined as one half of the minor diameter) (in.)
a =
Flaw length (major diameter) (in.)
1 =
a, = Maximum embedded flaw size in depth direction, byond which it must be considered a surface flaw, per Section XI characterization rules.
The following parameters must be calculated from the above dimensions to use the charts for evaluating the acceptability of an embedded flaw:
o Flaw shape diameter, a
o Flaw depth parameter, -
s o
Surface proximity parameter, -
The evaluation chart for embedded flaws; The evaluation charts for embedded flaws in this region are listed below:
o Figure A-3.5 Emoedded Flaw Evaluation Chart for circumferential Flaws in the Tubesheet to Stub Barrel Weld Region (SGC-02).
o Figure A-3.6 Test Temperatures Determination Chart for Embedded Circumferential Flaws in the Tubesheet Stub Barrel Weld for Secondary Hydro Test.
A-26
FIGURE A-3.1 Geometry and Terminology for Flaws at the Tubesheet - Stub Barrel (SGC-02) 4 f
D 0
9 a
SURFACE FLAW AT Tubesheet C
stub barrel
__e N
/
(SGC-02)
(inside)
, T. 3.13 s
(1 EMBEDDED
-6 Tubesheet-stub barrel FLAW AT (SGC-02)
Tubesheet stub barrel l
(SGC,02) 4]7 t nside) 4
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I a6 T.3.13 g
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Test Temperature Detennination chart for ciretnferential Flaws at theInside Surface of the Tubesheet - Stub Barrel Weld for Secondary Hydro Test
9 200'F 180 F 160'F 20
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Figure A-3.4 Test Temperature Detennination Chart for Ciretsnferential Flaws at the Inside Surface of the Tubesheet - Stub Barrel Weld for Secondary Leak Test l
l
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A-31
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A-32
AJ4 Feedwat:r Nozzlo R:gion of th2 Stcam Gen 2rator (SGN-02)
A-4.1 SURFACE FLAWS The geometry and terminology for surface flaws in the feedwater nozzle region is depicted in Figure A-4.1.
1he following parameters must be prepared for surface flaw evaluation charts Flawshapeparameter,f o
Flaw depth parameter, f o
where a = the surface flaw depth detected (in.)
L = the surface flaw length detected (in.)
t = wall thickness at the feedwater nozzle (t = 3.257")
The surface flaw evaluation charts for the feedwater nozzle are listed below Figure A-4.2 Surface Flaw Evaluation Chart for Circumferential Flaws at the Inside Surface of the Feedwater Nozzle Figure A-4.3 Surface Flaw Evaluation Chart for Circumferential Flaws at the Outside Surface of the Feedwater Nozzle Figure A-4.4 Test Temperature Determination Chart for Circumferential Flaws at Both Inside and Outside Surfaces of the Feedwater Nozzle for the Secondary Hydro Test Figure A-4.5 Test Temperature Detennination Chart for Circumferential Flaws at the Inside Surface of Feedwater Nozzle for the Secondary Leak Test Figure A-4.6 Test Temperature Detennination Chart for Circtanferential Flaws at the Outside Surface of Feedwater Nozzle for Secondary Leak Test A-33
A.4-2 EMBEDDED FLAWS The geometrical description of an embedded flaw in the feedwater nozzle region is depicted in Figure A-4.1.
Basic Data:
3.257 in.
t =
Distance of the centerline of the embedded flaw to the surface 6 =
(in.)
Flaw depth (deined as one half of the minor diameter) (in.)
a =
L =
Flaw length (major diameter) (in.)
Maximum embedded flaw size in depth direction, beyond which it a =
g must be considered a surface flaw, per Section XI characterization rules.
The following parameters must be calculated from the above dimensions to use the charts for evaluating the acceptability of an embedded flaw Flawshapediameter,f o
Flawdepthparameter,k o.
6 o
Surface proximity parameter, 7 The evaluation chart for embedded flaws:
Figure A-4.7 Embedded Flaw Evaluation Chart for Circun.ferential Flaws near the Inside Surface of the Feedwater Nozzle Figure A-4.8 Embedded Flaw Evaluation Chart for Circumferential Flaws near the Outside Surface of the Feedwater Nozzle A-34
Figura A-4.9 T6st Temperatura Determination Chart for CircumferIntial Embedded Flaws in the Feedwater Nozzle for the Secondary Hydro Test Figure A-4.10 Test Temperature Determination Chart for Circtsnferential Embedded Flaws in the Feedwater Nozzle for Secondary Leak Test 4
t A-35
FIGURE A-4.1 Geometry and Terminology for Flaws at the Feedwater Nozzle Shell (SGN-02) e E
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'IS REQUIRED 0, $5! !!ii liti !!ii !!!! !!ii iNi ifi lii! ilii i li iill jih h [ti lii! INI fi:! !! ! I [ l I!.i: 11111!
O O.1 0.2 0.3 0.4 0.5 FLAW SHAPE (a//)
1 Figure A fl.6 Test Temperature Detennination Chart for Circunferential Flaws at I
the Outside Surface of Feedwater Nozzle for Secondary Leak Test
SURFACE / EMBEDDED FLAW DEMARCATION LINE 10 years O.13
'ii I iii EMBEDDED FLAW 3'i
': "F:
EEi:
iii N
- FLAWS WITH a
.i.i. !.s.....i e...-.1. 8. -.,
- c,O,,N,F,,I.G.U..R A..T.IO.N. 5 -
t.
l 0 12 3ig ABOVE THIS LINE ARE siii:: E s
.! W"N"E i;=... ! f::."=;;
- ..d 5
~
~
' ' -.?t...
Z
..J7' ~. .
NOT ALLOWABLE I"
g
^~
- i "
E 0.11 Ei'i
=
sil 15 iE iiMii si s; i. ii'i Ei :tr 20 years 2!
s.-
s s i
= a
- =:
Je =n y si:
. it=- iii<.i s is idhHI M lE A:I: Uiib $.
30 years 5h O
U#
s ate: :
m
.- s fi s a:1 i==-
- i s s!
p
- =::::
8 0.09
/:..). -
2.
~=
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ih ::6 iii:
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=
!!i! !
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J'i siiii =?
g 0.08
!F!!!! i::-
$:n "n 2 m
~
M (s peog a p ij 7;.T y 3; 2.
3[! g;;
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- 73; ::gyii w
5 I!:/E IR I si!!/i! 55 iiEI" C Imii E i
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- !.~2 0.07
. s uR r ace.:
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1 Z
.i FLAWS IN THIS i!![UM 55 !IN N
'!$ia! DIE e 0.06
- REoioN uusT sE :p O
I CONSIDERED 2
- "" 2
" ~ '
- N:
["li h
i SURFACE
- Ei =
- s
~
0.05 t FLAWS
~
g
- .m a
"r :~y:
--~-
_:. ::n
- n
- E iif": :r.: :*ii
=
- i= :iii ii 9ii
!
- ALL EMBEDDED FLAWS I O'04
~"
.. 5 i ii fii i
,i:
+
(ON THIS SIDE OF
.1 )
s...
". ~
DEMARKATION LINE) an
~
ARE ACCEPTABLE PER 0.03
- .:[.
- n au CRITERIA OF IWB 3600 0.02 9 I.) 7:
== :
au
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i!,
- =::.s :-
.. _=-
s :uri t
~
0.01 1
!.T
- J..
- .'.j IE Ii IiIIE O
o 0.05 0.10 0.15 0.20 0.25 DISTANCE FROM SURFACE (f)
Figure A-4.7 Embedded Flaw Evaluation Chart for Circumferential Flaws near the Inside Surface of the Feedwater Nozzle A-42
1
}
l l
SURFACE / EMBEDDED FLAW DEMARCATION LINE 0.13
'ii!}.i' i":
iE i:= Tiii '"
d* EMBEDDED FLAWi-b i
- 2......-'
"E
' FLAWS WITH 8
.i.i. i..=.i.i....; g.. M.. 8..e..ap:;-CONFIGURATION :-=
i
- n 0.12 ABOVETHIS LINE ARE
- t.
- g
.. A. 3...,
.~
NOT ALLOWABLE cu
- =
.. g
...,7". c.-..N'
- g.u. -' - ' '
.:7"
_. p
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r~
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=
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0.11 10 years s ;r4 gf ;e ;ijagsii s si 1
ig :i;; gj 1.
E iif i'
=- EE E.=.i E lif "iiFE iE ~il s :!d5 -i Eli is
- 1..;
- r :n 2.
p,g 3,; gg.,,7g;33 ggg3, _
-- \\20 years
- f 0.10
.;;; ;3;
-=.,
, 333;3,,gg:
j 30 years
- :.-.r:.
. :~.:1
=
as i g
- - E= 6==
: m.i r-
4 09
- F
=
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- g3
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J::. :.
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^'
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=
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- 13
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..-E 0.07
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~
5[ iiM= RE. :n :id.
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~~
h di'U.nl:u: :: _
if:i.ar
!5 fi
> 0.06 M. FLAWS IN THIS Z
REGION MUST BE :f :"....
~
~
"" =
~=
.~
2
~~~
O
- CONSIDERED 3
~~
g SSURFACE
["di EE a:ii"! s-"
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=
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-j FLAWS 0.05 ur-
=.
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a4 i
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.=:
iin ;iEli liii N ALL EMBEDDED FLAWS Z 0'04 l
. ~. 'j
.. '.iss:: I~.::
a: is
'ii (ON THIS SIDE OF i iiii s !i f':'i
- =isi==
'a E: ':.
DEMARKATION LINE)
P' 5 a-ARE ACCEPTABLE PER 0.03 5:P
- I. -.iiis s :
-~
mi nu iMi CRITERIA OF IWB 3600 f.L
- =
u
~
AS LONG AS 2,a l.0.25 0.02 3:5)
- == s :--
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- is r" t
d
. :1-.i.
r
- = s t
"if.
~m :Eli : -~i.. '
0.01
- =
0 0
0.05 0.10 0.15 0.20 0.25 DISTANCE FROM SURFACE (f)
Figure A-4.8 Embedded Flaw Evaluation Chart for Circumferential Flaws near the Outside Surface of the Feedwater Nozzle l
A-43
SURFACE / EMBEDDED 160oF FLAW DEM ARCATION LINE 0.13 Hif.i;:
di EMBEDDED FLAWl'i [.
iE'i:= !!i:
C "F
w3..g-,
i.CO.N,FIGU..R A..T.I.O..N.,.. ---
-, :g 140 F
- .i
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% 0'06 j n.AWs sN ms @ E W
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- W
~
W
.. REGION MUST BE :f' :"...
- c.
O
^
4" CONSIDER ED
['. ii g
!if SURFACE i; ~
E
'ir
=
0.r,5 t FLAWS u;
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ut
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eit
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^
q; j.:
0 0
0.05 0.10 0.15 0.20 0.25 DISTANCE FROM SURFACE (f)
Figure A-4.9 Test Temperature Determination Chart for Circumferential Embedded Flaws in the Feedwater Nozzle for the Secondary Hydro Test A-44
SURFACE / EMBEDDED FLAW DEMARCATION LINE 0.13
' ~ ' ? !iik.i
- ii EMBEDDED FLAWi'i [-
120 F iiii :n-fii!
i.i.i.i.:.ii.i.i..,! M...8 e..*P.
i-CONFIGURATION :j isliF Ei f ri #8%Mi': iiE ::if:i iiEdii 51 51 ;iEi
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Z iiFLAWS IN THis i!'[i!
55 5 N E Yii
~
!5 I:1!Sif E
> 0.06
? REGION MUST BE
.t
. ~
=
0
- CONSIDER ED
=
=
g
$$URFACE
[:ii 'iE
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(
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0.01
.8
=
" =
- 4-
- pi:
u-l Y
O 0
0.05 0.10 0.15 0.20 0.25 DISTANCE FROM SURFACE (f Figure A-li.10 Test Temperature Detemination Chart for circumferential Embedded Flaws in the Feedwater Nozzle for Secondary Leak Test A-45 I
A-5 STUB BARREL INTERMEDIATE SEAM WELD OF THE STEAM GENERATOR (SGC-03)
A-5.1 SURFACE FLAWS The geometry and teminology for surface flaws in this region is depicted in Figure A-5.1.
The following parameters must be prepared for surface flaw evaluation charts a
o Flaw shape parameter, I a
o Flaw depth parameter, t Where a = the surface flaw depth detected (in.)
t = the surface flaw length detected (in.)
t = wall thickness (t = 3.7")
The surface flaw evaluation charts for this region are listed below Figure A-5.2 Surface Flaw Evaluation Chart for Circumferential Flaws at the Inside Surface of the Stub Barrel Intermediate Seam Weld (SGC-03)
Figure A-5.3 Test Temperature Determination Chart for Circumferential Flaws at the Inside Surface of the Stub Barrel Intermediate Seam Weld (SGC-03) for Secondary Hydro Test Figure A-5.4 Test Temperature Determination Chart for Circumferential Flaws at the Inside Surface of the Stub Barrel Intermediate Seam Weld (SCC-03) for Secondary Side Leak Test A-46 f
~
A-5.2 EMBEDDED F1.AWS The geanetry and terminology for embedded flaws in this region is depicted in Figure A-5.1.
Basic Data:
t =
3.70 in.
6 =
Distance of the centerline of the embedded flaw to the surface (in.)
Flaw depth (deined as one half of the minor diameter) (in.)
a =
L=
Flaw length (major diameter) (in.)
a, = Maximum embedded flaw size in depth direction, beyond which it must be considered a surface flaw, per Section XI characterization rules The following parameters must be calculated from the above dimensions to use the charts for evaluating the acceptability of an embedded flaw Flawshapediameter,f o
f Flaw depth parameter, *g o
6 Surface proximity parameter, 7 o
The evaluation chart for embedded flaws is found in Figure A-5.6.
In view of Figure A-5.5, an embedded flaw in this figure will be acceptable a
regardless of its size, shape, and location, as long as g < 0.125 in Figure A-5.1.
l This determination can be made by plotting the indication parameters in the figure.
If the plotted point falls below the diagonal line the indication is embedded, and is therefore acceptable.
In addition to this chart, test temperature determination charts for both secondary hydro and leak tests have been provided.
4 A-47
The evaluation charts for embedded fitws aro listid below:
Figure A-5.5 Embedded Flaw Evaluation Chart for Circumferential Embedded Flaws near the Inside Surface of the Stub Barrel Intennediate seam (SCC-03)
Figure A-5.6 Test Temperature Detennination Chart for Circumferential Embedded Flaws near the Inside Surface of the Stub Barrel Intermediate Seam for Secondary Hydro Test Figure A-5.7 Test Temperature Detennination Chart for Circumferential Embedded Flaws near the Inside Surface of the Stub Barrel Intennediate seam for Secondary Leak Test t
4 A-48
Figure A-5.1 Geometry and Terminology for Flaws at the Stub Barrel Intermediate Seam (SGC-03)
~
o L
f 3
D a_
SURFACE
=
I FLAW AT Stub barrel intermediate
__q O
seam
\\
/
(SGC-03)
T = 3.70 (iniide) s Stub barrel intermediate C seam (SGC-03)
EMBEDDED -i FLAW AT l
Stub barrel intermediate l
fkkie'e')
W S-l T e 3.70 A-49
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SURFACE / EMBEDDED
~
FLAW DEM ARCATION LINE O.13
..id".
fn: :ii EMBEDDED FLAW i.I [
iiii !.. !!i: ri
..i. irri iipan...i:spi 7..,C O N F IG.U..M..A..T.IO.N_Ef.,
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... A.m.......",*-
- .1.:. ~ :.
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ABOVE THIS LINE ARE
~
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. a.
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- u:.... NOT ALLOWABLE ci; :)3.i
., (m; i
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=
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7-- ini mi i.I i/;i! En "t M"
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'r i FLAWS IN THis li[;h:
EEE ME :
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i mEGION Musi SE :f:
6 ~
.I} CONsiDE REDf
) 0.05 sumFACE y -i! if:-
'i "b. AWs
.,n FL u.
i a4 ini
~
'
- ALL EMBEDDED FLAWS 2 0'04 f.
m.- '"'.ii n
(ON THIS SIDE OF in:.iii:..:
- "3:
.... T
", ~
DEMARKATION LINE)
...P
"~
0.03
~
":1....7/
- il '_P
ARE ACCEPTABLE PER
!"i CRITERIA OF lWB 3600 IN AS LONG AS a40.25 2
0.02 2:
an := ir-
..;;; n:: ::
t 0.01 -
a!.-
f;i..- m r:
di O
0 0.05 0.10 0.15 0.20 0.25 DISTANCE FROM SURFACE (f i
l l
Figure A-5.5 Embedded Flaw Evaluation Chart for Circumferential Embedded Flaws near the Inside Surface of the Stub Barrel Interudiate seam (SGC-03)
A-53 l
1
SURFACE / EMBEDDED FLAW DEM ARCATION LINE 120'F 0.13
'.ii. } i,
- !b EMBEDDED FLAW.hi [-
E9
/
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+.
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= i '+
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g.
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=
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if
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=
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- n
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0.02 '.
r*
a 0.01 t
h I.i' O
O 0.05 0.10 0.15 0.20 0.25 DlSTANCE FROM SURFACE (f)
Figure A-5.6 Test Temperature Detennination Chart for Circumferential Embedded Flaws near the Inside Surface of the Stub Barrel Intennediate Seam for Secondary Hydro Test A-54
/
SURFACE / EMBEDDED FLAW DEMARCATION LINE 0.13
~ ~ ~ ' 'iid i' sii EMBEDDED FLAW fi ['
120.F Hii i:r ili;
. u.g man ::. C, O.N FIG,U. R.A.T.IO..N.47 u
- a. --
--. tit :~
- j
- :.. < p
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= :.
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'l.i.i.i.i:i.
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5
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< "i
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.:REOlON MUST BE :f :'
x
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=
O i CONSIDERED
"" I'"....
h
'i: SURFACE
-[:li ii? :.
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ii:i 0.05
' flaws
...: :~
MH T~
- ib:" m:
- + *"[i iiEi
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(
Y.:
.: =
=
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. m:
..: :=
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.:.f
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i...
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E
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+
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1 0.01 1 '
+
c::
d"
~"
- n::
fi 0
0 0.05 0.10 0.15 0.20 0.25 DISTANCE FROM SURFACE (f)
Figure A-5.7 Test Temperature Detennination Chart for Circumferential Embedded Flaws near the Inside Surface of the Stub Barrel Intennediate seam for Secondary Leak Test l
A-55
A-6 LOWER SHELL-CONE WELD OF THE STEAM GENERATOR (SGC-05)
-A-6.1 SURFACE FLAWS The geometry and terminology for surface flaws in the lower shell - cone weld region is depicted in Figure A-6.1.
The following parameters must be prepared for surface flaw evaluation charts Flaw shape parameter, a o
g Flaw depth parameter, a o
{
where a = the surface flaw depth detected (in.)
L = the surface flaw length detected (in.)
t = wall thickness (t = 2.84")
The surface flaw evaluation charts for this region are listed below:
Figure A-6.2 Surface Flaw Evaluation Chart for Circumferential Flaws at the Inside Surface of the Lower Shell-Cone Weld of the Steam Generator (SGC-05)
Figure A-6.3 Surface Flaw Evaluation Chart for Circumferential Flaws at Outside Surface of Lower Shell-Cone Weld of the Steam Generator (SGC-05).
Figure A-6.4 Test Temperature Determination Chart for Circumferential Flaws at the Inside Surface of Lower Shell-Cone Weld of the Steam Generator (SGC-05) for Secondary Hydro Test Figure A-6.5 TestTemperature Determination Chart for Circumferential Flaws at the Outside Surface of Lower Shell-Cone Weld of the Steam Generator (SGC-05) for Secodary Hydro Test A-56
Figure A-6.6 Test Temperatura Det nninttion Chart for CircuT.rer:ntial Flaws at the Inside Surface of the Lower Shell-Cone Weld of the Steam Generator (SGC-05) for Secondary Leak Test Figure A-6.7 Test Temperature Detennination Chart for'Cricumferential Flaws at theOutsideSurfaceoftheLowerShell-ConeWeldbrtheSteam Generator (SGC-5) for Secondary Leak Test A-6~.2 EMEDDED FLAWS The geometry and terminology for embedded flaws in this region is depicted in Figure A-6.1.
Basic Data:
2.84 in.
t =
g Distance of the centerline of the embedded flaw to the surface 6 =
(in.)
s Flaw depth (d'eir.ed as one half of the minor dinneter) (in.)
a =
L=
Flaw length (major diameter) (in.)
l Maxinium emoedded flaw size in depth direction, beyond which it a =
g must be considered a surface flaw, per Section XI characterization rules.
The following parameters must te calculated from the above dimensions to use the charts for evaluating the acceptability of an embedded flaw o
Flaw shape diameter, f Flawdepthparameter,f o
6 o
Surface proxiniity parameter, T A-57
The cvaluation chart for embedded flaws cra found in Figuro A-6.8.
In view of Figure A-6.8, all embedded flaw which meet the criterion { < 0.125 will be acceptable regardless of their size, shape, and location.
The embedded flaw evaluation charts for SGC-05 are listed below:
Figure A-6.8 Embedded Flaw Evaluation Chart for Circumferential Flaws in the Lower Shell-Cone Weld of the Steam Generator (SGC-05)
Figure A-6.9 Test Temperature Detamination Chart for Circumferential Flaws near the Inside Surface of the Lower Shell-Cone Weld of Steam Generator (SGC-05) for Secondary Hydro Test Figure A-6.10 Test Temperature Detamination Chart for Circumferential Flaws near the Outside Surface of the Lower Shell-Cone Weld of Steam Generator (SGC-05) for Secondary Hydro Test Figure A-6.11 Test Temperature Detamination Chart for Circumferential Flaws near the Inside Surface of the Lower Shell-Cone Weld of Steam Generator (SGC-05) for Secondary Leak Test Figure A-6.12 Test Temperature Detamination Chart for Circumferential Flaws near the Outside Surface of the Lower Shell-Cone Weld of Steam Generator (SGC-05) for Secondary Leak Test A-58
FIGURE A-6.1 Geometry and Terminology for Flaws at Lower Shell-Cone Weld (SGC-05)
A-f 4
o D
C2 SURFACE I
FLAW AT Lower shell-cone (SGC-05) q 2.84
\\
[
T=
Lower shell-cone (SGC-05) s_-_
'e (1
EMBEDDED i
FLAW AT l
Lower shell-cone (55C-05) l M
[:
e-2.84 T=
l A-59
10 years 20 years 30 years 20 i
TI Ef
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FLAWIS ACCEPTABLE BY CODE 12 6
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!il !
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ll
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0 0.1 0.2 0.3 0.4 0.5 Ft>W SH APE (a//)
Figure A-6.2 Surface Flaw Evaluation Chart for Circumferential Flaws at the Inside Surface of the Lower Shell-Cone Weld of the Steam Generator (SGC-05)
10, 20, 30 years 20 M
f il frI IIII IE if li
- i i:l L l ~Ill-I II I i
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b WITHIN THIS ZONE THE SURFACE
'; {
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FLAWIS ACCEPTABLE BY CODE E 12 IU! [:u
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0.1 0.2 0.3 0.4 0.5 FIMW SHAPE (a//)
Figure A-6.3 Surface Flaw Evaluation Chart for Circumferential Flaws at Outside Surface of Lower Shell-Cone Weld of the Steam Generator (SGC-05).
_m_____
__-_______m_
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Figure A-6.5 TestTemperature Determination Chart for Ciretnferential Flaws at the Outside Surface of Lower Shell-Cone Weld of the Steam Generator (SGC-05) for Secodary Hydro Test
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l Figure A-6.6 Test Temperature Determination Chart for Ciretnferential Flaws at the Inside Surface of the Lower Shell-Cone Weld of the Stean Generator (SGC-05) for Secondary Leak Test l
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Figure A-6.9 Test Temperature Detamination Chart for Circumferential Flaws near the Inside Surface of the Lower Shell-Cone Weld of Steam Generator (SGC-05) for Secondary Hydro Test A-67
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A-68
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Figure A-6.11 Test Temperature Detamination Chart for Circumferential Flaws near the Inside Surface of the Lower Shell-Cone Weld of Steam Generator (SGC-05) for Secondary Leak Test A-69 l
l
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i :uRFACE -i =t:n: n==-i:
if'E-
=f."in255%ii:iEi :!!=.515.
i===
r:
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Z hWS IN WIS EE
_9 nr : 4:n F H O*06
_~t=
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2 REGION MUST BE f:. x=
7," " 2M := "~
~
. nt.r":= :...
Q if CONSIDERED 3
=3 : ='
+=
g i SURFACE
-[.!C ii:ifREE Eri.
--i y"d:'
. f'i O.05
+ FLAWS
. :..~~.:- 7'
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ill -m a:: :=rgi i=M
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(
=
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~~=
..=
" '=
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- ! -ifl"-EliW5f=h!-!si iE 10r-9
- l!!jiii "E
=. n
- =
Gli=:iilifiM?.=Ei" =
3" Eji-o'03 i!!Ei !UKf 2. :iliL ii' iisii Ei 5" -Ei Hr iiiiliii UHi-E
,;iiikgfigt i.
.. : i1;_
~
is i iTij. g; 0.02
..y.
34 7 ) 7
=gi;
- g ;g 3= g, g3
- , _;
g ig na I"
i *
~i
- IE E
0.01 ifdi
~i!\\!~n i=i E^ #
5
'U Y
0 0
0.05 0.10 0.15 0.20 0.25 DISTANCE FROM SURFACE ( )
Figure A-6.12 Test Temperature Detamination Chart for Circumferential Flaws near the Outside Surface of the Lower Shell-Cone Weld of Steam Generator (SGC-05) for Secondary Leak Test A-70
A-7 UPPER SHELL-CONE WELD OF THE STEAM GENERATOR (SGC-06)
A-7.1 SURFACE FLAWS The geometry and terminology for surface flaws in this region is depicted in Figure A-7.1.
The following parameters must be prepared for surface flaw evaluation charts Flawshapeparameter,f o
Flawdepthparameter,k o
1 where a = the surface flaw depth detected (in.)
L = the surface flaw length detected (in.)
t = wall thickness (t = 3.70")
The surface flaw evaluation charts for this region are is listed below Figure A-7.2 Surface Flaw Evaluation Chart for Circumferential Flaws at the Inside Surface of the Upper Shell-Cone Weld of the Steam Generator (SGC-06)
Figure A-7.3 Test Temperature Determination Chart for Circumferential Flaws at the inside Outside Surface of the Upper Shell-Cone Weld of the Steam Generator (SGC-06) for Secondary Hydro Test Figure A-7.4 Test Temperature Determination Chart for Circumferential Flaws at the Inside Surface of the Upper Shell-Cone Weld of the Steam Generator (SGC-06) for Secondary Leak Test A-71
A-7.2 EMBEDDED FLAWS The geometry and terminology for embedded flaws in this region is depicted in Figure A-7.1.
Basic Data:
3.70 in.
t =
6 = Distance of the centerline of the embedded flaw to the surface (in.)
a = Flaw depth (defined as one half of the minor diameter) (in.)
Flaw length (major diameter) (in.)
L =
Maxinum embedded flaw size in depth direction, beyond which it a =
g must be considered a surface flaw, per Section XI characterization rules.
The following parameters must be calculated from the above dimensions to use the charts for evaluating the acceptability of an embedded flaw a
o Flaw shape diameter, g
I Flawdepthparameter,f o
Surfaceproximityparameter,f o
The evaluation charts for ecibedded finws for the this region is listed below:
l l
Figure A-7.5 Embedded Flaw Evaluation Chart for Circumferential Flaws in the Upper Shell-Cone Weld of the Steam Generator (SGC-06) l I
A-72
Figura A-7.6 Test Temperctura Determin: tion Chrrt for Circumferential Embedded Flaws in the Upper Shell-Cone Weld of the Steam Generator (SGC-06) for Secondary Hydro Test Figure A-7.7 Test Temperature Determination Chart for Circumferential Embedded Flaws in the Upper Shell-Cone Weld of the Steam Generator (SGC-06) for Secondary Leak Test 9
6 i
J l
e A-73
Figure A-7.1 Geometry and Tenninology br Flaws at Upper Shell Cone Weld of Steam Generator (SGCo s-- -
I L
D C.1 a_
SURFACE FLAW AT Upper shell-cone (SGC-06; g
(inside)
\\
/ Upper shell-cone (SGC-06)
_ T. 3.70 EMBEDDED 5
e-(I FLAW AT Upper shell-cone (SGC-06) l (inside)
~ l'
~
5 bBW i
-e.
T = 3.70 1
1 I
l l
A-74 l
10 years 20 years 30 years 20
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- I" WITHIN THIS ZONE THE SURFACE i.
+-
a iiI 0'! !,
u
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FLAW IS ACCEPTABLE BY CODE L
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il !!I i ANALYTICAL CRITERIA (lWB 3600)
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!!!! !I.! Il ! ! !!
11I !L lik !!!i liTIl!!! Ili! iil lii itii i i ii
!! !W SHAPE (a//) Figure A-7.4 Test Temperature Determination Chart for Circumferential Flaws at the Inside Surface of the Upper Shell-Cone Weld of the Steam Generator (SGC-06) for Secondary Leak Test
SURFACE / EMBEDDED ~ FLAW DEMARCATION LINE 0.1 3 tii!l U EE!= Iiii = " EMBEDDED FLAWi !I
- E UF
- FLAWS WITH S 0.12 .. M....8h9 i: CONFIG,U..R A..T. ION "J .... u:. .i.i.i..iii.i....,: m
- s.
i ABOVE THIS LINE ARE
- giii;.gi; ~
- :.:,.ini; ee.
"" - nu.:. i (":i-NOT ALLOWABLE i:; '" '~ a=.im =
- = q:
C". _ 1: ::i t':'/:. ~ _..niI f%lii!3: !E:iii;- ! =::., at E 0'11 !!"" ". Gi :s.- Ti !!!! :sil Ei! E iii/iOM is ;i== = 10 years Ei iiE i 7 iE
- un
. g,(ji f[:](ij 0.10 [;;igj,':
- ? ;
~ ~ --"is.3
- h ;g..;
20 years .i =, . 33.f.j,;f: .... fy.g..tg. ;. ~ .;3.,_ !!= s i
- Bi e :: !!-i
=
- L =it /$/7:1-- isi4di! ;;;; :; ;
30 years .T., om =gi ig i; j;g 7; i;77j$j ;_
- gi 3;gg 3gi
= "h 3 0.08 i & J # s,igae iin ij//Mi is iiis:! #i! iis i vii si.# u 0.07 d:SUj.nl::=t:nd!-M/Y II!iS:n ?i!$! 'M!! :5!' d-. '! 5 E h HEi::i:: Z fiiFLAWS IN THIS !!5bNIk[ i '!Ili.I!!iMi 5 s 0.06 1 REGION MUST BE _3//;. x
- "" "2
- c:
9 i CONSIDERED N# '~ m: g 1: SURFACE g fiE :ni=i Ei! ti : i. !E : 2 0.05 t FLAWS
- f...;;;-
u.a
- .:,e-..%.
m e---- .a =: , =. -=. : l ! s E i:s Eir i :,u
- } M ALL EMBEDDED FLAWS Z 0'04 f/
0.03 .... :E:' ~
- g.-..g
. - -"-zi: (ON THIS SIDE OF =.: i 7 ; 7,; ~ DEMARKATION LINE) " "T ~. - ARE ACCEPTABLE PER 1 25.!f/. i: -
- is 51= ;:== un im i:ui.
CRITERIA OF IWB 3600 ~ 2 ~ l-- AS LONG AS,,at,0.25 ~ 0.02 - ifi.
- 2=
un...: :-
- .; un :. :.:
t 0.01 f, = - E .l.! 0'E ~ 5 5 I O 0.05 0.10 0.15 0.20 0.25 DISTANCE FROM SURFACE (8) Figure A-7.5 Embedded Flaw Evaluation Chart for Circumferential Flaws in the Upper Shell-Cone Weld of the Steam Generator (SGC-06) A-78
1 1 220'F SURFACE / EMBEDDED FLAW DEMARCATION LINE 0.13 =::=nsiM.$d *.i5 EMBEDDED FLAW 3 b'i 5 !b - - ~ ".E 200 F 2 0.12 an@ u.aage q CONFIGU. RATION +'i.. _--". "_- :_ig
- n: tin =
pga ...I..f. .: u .p.. r_.- I' - - b -' ~ * * * '^" i .sy..g . In.!*:4 b-- --m 7I ...4 H. -+ -Tnt ~;:1 Ii*ngn un :n3:;g ::- 7-y 3:g ---4 _~~-'. ~~~ 0.11 ~ =n = ~. - .m _. _g...=.=. g..g g.. =.._=g .- =. = 0.10 ~,.~~ ~ " ' '* - ~. /~-". = " . ~ =. =~"., ".' '.. ._... = '._ .. n" . ". '.~. m =
- it
._..._d U" .~:* 2.:-~:** *:= g. 180 F g. ". c 0.09 ~- ~" ~ ' ~
- n =.
r. .,.- w-=un7'. ~.... n :.._.. e j.,
- =t=
- m :--- 9 3
=.n _m .y= f".. = '"~~~ -"* ~ ' ' ~ "3
- 0.08 "."._~- _'
Em + n n::==g.: _:: n: 1 - nu--- < 'IP. 8 9 48-FW #
- d_=.
_f
- =n =-_.=
nt: = r ~~-- n-r'":- ::n.:. :..~.:- = 0.07 "-"' -suR r ACE '. =-__. . ~ _ ~..'.; .m-.d W .,. -.= u. = m = m n._ " ~~'"~=t" = 5 -p_-. ._n== = = =._".=- 160 F -":= o e % 0*06... nAws IN ms M, =.. g = ur n-v = o. rn =
==:n W REGION MUST 5E g annn 2;m-En an" 2':' *--- F-j*
- ....: := =-
_ ;. a: O 2"~ = CONSIDERED g [ SURFACE Mjij' iij 2" EE }C iy ~:~;jjjE%iili:T .yjj "i N+NS em--+fi ii:E7.E5Ei is! !M ip"i & 4 i :np 140 F (
- c..2- '. - #-
=:..,,,,* ::_ ;n:nn M
- .:-- "bn:
- 2. ' '
Z O.04...-.. =.. _ = =.,. '.. -~ ' ~ ~?.= =. .= =
== ya ,:- =.. Mg: =. ,V. za -=- =n + "..+.-_..m-f(. nr :_..jit:-- +, nn,me- -'ri- = c p:: n;: -= . g---
- Jn :
-n
- t;,, -.-
2 0.03 re. n- --r - - -aM:~r --n :n;ng;,.se..n nn:
- n.
- nn - 2 n p n =
- "--"-dy..'.fr..u._
.-..n fn nn - - -;.a**'. . ; '.:n p~r='*be n
- n.:: ;
.: n n "g:.
- " ' ~~
-: : r.--: 3'.i... E;;,"r;:'./.""r p. .r
- . ;;,aser=--n':
.~ ~: ~~ r" 0M w un nu _:: un
- - nn
=: = :- d- = 5 "~~F5 i I N 0.01 MM.? iMEE ii ' ~ -- 'H:
- n 0
~ '
- Y-5
~~ ~ 0 0.05 0.10 0.15 0.20 0.25 DISTANCE FROM SURFACE ( ) Figure A-7.6 Test Temperature Detennination Chart for Circumferential Embedded Flaws in the Upper Shell-Cone Weld of the Steam Generator (SGC-06) for Secondary Hydro Test A-79
SURFACE / EMBEDDED FLAW DEMARCATION LINE O.13 .. }iN. ..... EMBE DDE D FLAW E b i Ei =
- ?
EE iii!Sii "~ 'I!i2. 200oF 3: =--.:.n.. ugues3maage -.: t. CONFIGUMAT10N :J:...: := v ... -.=..
==.u_ O.12 . _.=. f=.. .--r...x... .=....n=- 15. =.. . _......n x:d ........: = _...=. 0.11.l.=. En =_ilElM . if,.'iF:l! T=.sE .',$;m... ~ ".. .E....m... !, =! i=J 180*F .."_-'..=. =,,.. = =..:iE
- .....a. _.-... r.-
.. -e./., . r .m m. .a .i. t_ .....:..= a :: 2n: 6% :m rd =; = =. -r==:: zu:: r n: F 0.10 . :.gg!i. g .. :. m 2 -- =/in = =nu =- =:s ..r: =: ..7... g gg-..g;... g:q_ga.. nrn. _s .= = v= :12u _ _.' "J. *.i ' ". ~...' .ga = g.. : *; Q p.e
- .t 0.09
_- 2
- 1,.5-sEI EE-- - *.. -
p,
- s.=E 3 =.
i:n =Lg1.
== = n.- rn u- = =i :n -d g 0.08 =... -: = rk- -as r_m t=r:;rcu r:c= =
- .n:..:
=>-:-~ r= n=-, 160oF 3,_-- ..z. =m mm-- = ..m e. m v = f=;=m..m .. =_.....j. a:- 9.s y se a..n3 ;g= .id 2n= n 6 f :- =1;: ' n ~ =:: >-:
- .::2
- =
n:: ::Jhu =
- -na n
..wL . : :-f.== n*.-. :,-". ::: /.-:r 0.07 ... SURFACE. "I--
-----
. -....[- E -" Y.... O =nnt...*... %....- = - - + " - -.. _.. g ~ ~ W 0 06
- mws IN MS Np
- n.:
p=": .... n- = .M
- =:
ne
- =
140oF Z
- 2
- REGION MUST BE f:
- n-A:
- 1 m:
- = gn-5::.~~ "-.=. :. j,,r 'm O
i -; *~ g CONSIDERED l h j SURFACE J[ 35 ;*n;i Ej % 5
- -: g#3..jIfi
[j l O.05 FLAW .n... s... . : =_. ..r. t E n.;ad.=.. =....._::..
- n.._..f*
..:..-:.u..n.._n.. _a oe ( '= nd-'.. ::; p=r-."n.. '"#2 = 4 '.': :. :- '":j un 2 0.04 ~.- v I ~ = =. ~ = ' ......=f: p .a .: = =
- :. ::..,.,w-.:.
= p .==n =
- 2: n2
.n 2 .:nn :-
- .. -,;;sr-
- .M 0.03
../ :.=:-.g =ar
- r e-
- r;7 g,JgS gg7jM its =.... =..=. =..:. 3= = .-r^,- en ~' 0'02 ..-#.,fe. ~~ ~ ~ ~ =
- -e
~~"
== '~ ~r::: [gi =.gf,l/g"~: En gji iisi is-:. - d;j g igi iiij p=1fjy :i =i 5=gi in;- .: = =:c n gll i idV!.iri! i15 iff in- = g --: m ...q::- 0 i 0 0.05 0.10 0.15 0.20 0.25 l l DISTANCE FROM SURFACE d) t Figure A-7.7 Test Temperature Determination Chart for Circumferential Embedded 1 1 Flaws in the Upper Shell-Cone Weld of the Steam Generator (SGC-06) for Secondary Leak Test A-80
A-8 UPPER SHELL-DOME WELD OF THE STEAM GENERATOR (SGC-08) A-8.1 SURFACE FLAWS The geometry and terminology for surface flaws in this region is depicted in Figure A-8.1. The following parameters nost be prepared for surface flaw evaluation charts a Flawshapeparameter,j o a o Flaw depth parameter, t l l where a = the surface flaw depth detected (in.) L = the surface flaw length detected (in.) t = wall thickness (t = 3.70") The surface flaw evaluation charts for the this region are listed below Figure A-8.2 Surface Flaw Evaluation Chart for Circumferential Flaws in the Upper Shell-Dome Weld of the Steam Generator (SGC-08) Figure A-8.3 Test Temperature Determination Chart for Circumferential Flaws at the Inside Surface of the Upper Shell-Dome Weld of the Steam Generator (SGC-08) for Secondary Hydro Test Figure A-8.4 Test Temperature Determination Chart for Circumferential Flaws at the Outside Surface of the Upper Shell-Dome Weld of the Steam Generator (SGC-08) for Secondary Hydro Test O A-81
Figure A-8.5 Test Temperature Determination Chart for Circumferential Flaws at the Inside Surface of the Upper Shell-Dome Weld of the Steam Generator (SGC-08) for Secondary Leak Test Figure A-8.6 Test Temperature Detennination Chart for Circumferential Flaws at the Outside Surface of the Upper Shell-Dome Weld of the Steam Generator (SGC-08) for Secondary Leak Test A-8.2 EMBEDDED FLAWS The geometry and terminology for embedded flaws in this region is depicted in Figure A-8.1. Basic Data: 3.70 in. t = Distance of the centerline of the embedded flaw to the surface 6 = (in.) Flaw depth (deined as one half of the minor diameter) (in.) a = L= Flaw length (major diameter) (in.) Maximm embedded flaw size in depth direction, beyond which it a = g est be considered a surface flaw, per Section XI characterization rules. The following parameters must be calculated from the above dimensions to use the charts for evaluating the acceptability of an embedded flaw Flawshapediameter,f o Flawdepthparameter,f o Surfaceproximityparameter,f o A-82.
Ev luation chcrts for embedded flt:ws are listed b210w: Figure A-8.7 Embedded Flaw Evaluation Chart for Circumferential Flaws'in the Upper Shell-Dome Weld of the Steam Generator (SGC-08)' ( Figure A-8.8 Test Temperature Determination Chart for Circumferential Flaws at the Inside Surface of the Upper Shell-Dome Weld of the Steam Generator for the Secondary Hydro Test i Figure A-8.9 Test Temperature Determination Chart for Circumferential Flaws at the Outside Surface of the Upper Shell-Dome Weld of Steam Generator for the Secondary Hydro Test Figure A-8.10 Test Temperature Determination Chart for Circumferential Flaws at the inside Surface of the Upper Shell-Dome Weld of the Steam Generator for the Secondary Leak Test Figure A-8.11 Test Temperature Determination Chart for Circumferential Flaws at the Outside Surface of the Upper Shell-Dome Weld of Steam Generator for the Secondary Leak Test i l A-83
FIGURE A-8.1 Geometry and Terminology for Flaws at Upper Shell Dome Weld of the Steam Generator (SGC-08) s-t } 4 -r a_ SURFACE I U. Upper shell-dome FLAW AT 3 (SGC-08) Upper shell dome (SGC-08) T. 3.70 0 \\ / s_-- I EMBEDDED -f-FLAW AT l Upper snell (T_ dome (SGC-05) l /7s V ;4 II l T. 3.70 i-A-84
20 pt -7 pt -;..y q p t -:4pyj l
- tt j -;
q t-i- l i-t l l i L I F 1 i t-L) o ll4 i ti i j ik i l 1 L L! ! ! ! 1 1
- i l l- 'l i illir !+ !
fii 1 !i i l li 1 i l lil li i i ;ij ni,Ti i l i t i - :il, !L i i if: 1 l li iil il [!ij pt i li lii' iiii iLii U! Il g 3, 1 i l i ! l i Il l i il t i: i i li l lii l . t ii il iti l? '! ri: E i j j I kilp iJ1!L J !!1 [J illy I j i jj j d WITHIN THIS ZONE THE SURFACE 1 ' ^ " 12 i i I 1 III NI II I I II I N H I II' b I ' i i l i FLAWIS ACCEPTABLE BY CODE 'h'g E Ui i' I iii-it i ! i-.J oi !!!! !jd ANALYTICAL CRITERIA (lWB 3600) i ill il l ii lij i i i i i i-
- ill i:i i !!! hi iiiiii r i it ! i' !d f!! ! 'l Illi il l B fo u!
I i p-lP-o- i . p"%h,p j P 3:
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i !L p i ui u i it t ip; l g! !E j!!! flat,itt rir 11!!!"!.i i!i i!,. ~ I F.h, o, l]p..a .a ; a 4 ; a 1
- .i m
56 w$qj r!! !!yg . !! L ! !. T o :;-. c 4 1 o
- L., p n an ni.iaiy;; i.n.Iil.. ![1!!!;.p u.-
i.I i 1 o n a - n...- u il f.7g Ili! ! - ! i il Illi iiii lFi iiii h.n 1 i ii i ! 1l Wi i: T in. .:i e
- g; ;;; ;;g
.! !! ! !!! !!!I !!!! Ilu ! :. ui Jiij g g:'li i. CODE ALLOWABLE LIMIT ri , p; p a iii d ji i! !!! Ti lili T 1 !j ! ;! i i!!; !!Tiiiij [J[Jjj[ j;;; i; g;j !ifi$i / l i ii i ,i !l Il I i l! !I i !!!14[4Mim H-
- m * )
![i"} njj j jj g; guuigii yJifj $;: j p !. I ! I i " H "" ;;;; ;;n y ng jlj il jjjp llji j ij il 1 ll ijj! l 2 fi $! !!;! ij j gij jj}j ljj jjj' ll jj j jJ j 'j j jjjj jyj j;j g; jN;$I IIII IIII "I iiii i it IS REQUIRED j U !.il !i 11 l ljjj jjj NO ANALYTICALJUSTIFICATION j iii; iki iii; iiii lii liii iii! illi ii i ilti iiii lii: il i !!!! :H: o.o 0.1 0.2 0.3 0.4 0.5 Fl:AW SHAPE (a//) f Figure A-8.2 Surface Flaw Evaluation Chart for Ciretnferential Flews in the Upper Shell-Dome Weld of the Steam Generator (SGC-08) I -~
180 F 160 F 20 j j M f ii-Ii -: i 4 - jt jiQ ', ! l E l - l N 140 F l[ r : gg !! ( j l I - !! ji 'I, I "! ! :! }...!l ll l
- }
. [ l . j' i B4p'4 j }} /j' I I 16 $.!Oj ilI Iji ii
- i i ! !
l a.! I ! ! I Vi I e Y I I I I II '1 !' i f !! III1 ' I'l !' t I' " 2; 14 i i I!! ih - 1A4:iT4 1 i i i i : - j c 4 120 F a ' L l li il ' i i i I i I T I 7 3 12 .:i i Rfili j' t it i 11414iP "'i i ! l !!!! 11! e 5 -,g ,c. ) , Wi."TT hi jfi i-iiii iii Ri / l i c _4 10
- ,, {,[
] t.-, .g "[ p.j jp ~~ ~ j 0 . Q.;.. j, .j I l j jj-j t e t' r II 1"i l !! !+-- Il SjMdl[ L i u u. I .l! Pt . 1 I.il l ji?i i-i i n i f i j? lv l s ll
- ; g;
- U ;
- g
[ q;
- 3. j; i )
i r i j i ! l ! I I l l l ill !, l ll!! ! !! Ilil l ! .ti l: ..i ii Y !H ~ ! 1 !!!! ! i! i-i 1 1-- - i } !J t 4 H il t i t il l 'ti t l t jg } } i j t ; j . jj q . {p j;1; i . l. ..j .4 : l i li l! !LLi iL IJ! El di l11-1 - l l I lli !L
- ;p Rlulla liii
.1 liti !1ii il ih ii l ii tii iiii nii ri t iii iii ih i i !h ' l. !! !,- ! - i iiii ilit O. al. O O.1 0.2 0.3 0.4 0.5 FCAW SHAPE (a//) Figure A-8.3 Test Temperature Detennination Chart for Ciretsnferential Flaws at the Inside Surface of the Upper Shell-Dome Weld of the Steam Generator (SGC-08) for Secondary Hydro Test
180 F 160 F 20 j T [ j .j j .i 7 { 7. [. l ja ! y .',,J. _-l } } b : ll l-I I 16 / LV l: :l l $ l l i 'i ji 'i - l .. :2 !' 2 U. t? l - l l l l . ij:l l I.i.37 / '. lT.. l i" 7_ 14 c .e" - l l { nl l [ 4 .T 1 t ) SI t j ."f j-j 1 1 z 12
- ;,.f~..l
. 1 1 t l ,i i sin.,4 120 F g, s a i 1 n ii a. + i...w a.- th. 6 . n .-;l t i. . i. I i .. n in 1 in a 10 n-g 4
- j ;).;
) [; 9 n ?, l ,j;; F, I ? i - ! ! I !- !L lili 3 m ti"1 i i i i. l.- l it t. 5s u. t h-i- . t.; l i I lf ! {! l: ji j i F l. I E # l 8
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1 '!:! ! !. !@ 11 l ! ! i l i ~ 1i ji i i-t e I ! .it !! ! ! Il i i 11 i i i i-i l ! l ll H ! i !! ^i t '*i ! i ! ! !! i~ l! b Li 1. t : f i-t i I t ! ! ! i.li 2 .i 4 0.1 'l ll Il l! I l ! I I N ' l Ll l; }ll i I SI l I U u_lilu !! i i iiii llii i l iii i ii i i i: l i ! l i lii i e it ! ! tili l i iit i i. i n o. O O.1 0.2 0.3 0.4 0.5 FCAW SHAPE (a//) Figure A-8.4 Test Temperature Determination Chart for Circumferential Flaws at the Outside Surface of the Upper Shell-Dome Weld of the Steam Generator (SGC-08) for Secondary Hydro Test
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SURFACE / EMBEDDED FLAW DEMARCATION LINE 0.13 . EMBEDDED FLAWEE[:
ii E'
FLAWS WITH a
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- ALL EMBEDDED FLAWS
-:= (ON THIS SIDE OF Z 0'04 /..:.
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: : c-=I! En IE imi
ARE ACCEPTABLE PER ~ ~ .-= .2 *! "'I T9.1 0.03 ----di!i
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= "= CRITERlA OF IWB 3600 2 ..: =i: ..=:
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.u = = - - -== == 0'm kJh= W i= bdsi EE i. . =!=- = ~ IN "i 0 O 0.05 0.10 0.15 0.20 0.25 DISTANCE FROM SURFACE (j) Figure A-8.7 Embedded Flaw Evaluation Chart for Circumferential Flaws in the Upper Shell-Dome Weld of the Steam Generator (SGC-08) l l l l A-90 l l
SURFACE / EMBEDDED FLAW DEMARCATION UNE 0.13 ...b.5.5: 160 F li-i Ei! iii-EMBEDDED FLAW EIb "ii... _ ~~"'~" ~ r-r:
- n==
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.ij:lisi Ei ~}i 0 0.05 0.10 0.15 0.20 0.25 l DISTANCE FROM SURFACE (j) l l l Figure A-8.9 Test Temperature Determination Chart for Circumferential Flaws at 1 the Outside Surface of the Upper Shell-Dome Weld of Steam Generator for the Secondary Hydro Test A-92
SURFACE / EMBEDDED FLAW DEMARCATION LINE 0.13 li-N.Hi siiiiH EMBEDDED FLAWiii[J --i "i-m- :r= 21.... =:::=un 140 F 4,. myeauguasagn 3pCONFIGURATION g 0.12 . :.. s..1.. m- - + - -~ =: m-fL=- :::.= = :.;g== 0 11 - ~- ~nr 0op ~" -,=r:= -+ rg :-ze_-, -,.. -.:. :. .a.. p. m. n ;=:3n:;f:n=- 010 .u a = g .... =.: ::_- ..+... -..: : = Z_ ::;r~- 5.r +- u-2: J. . t=nc .&= 0.09
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9 ECONSIDERED 2
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rami ..p - =pi ...:== 0 0 0.05 0.10 0.15 0.20 0.25 DISTANCE FROM SURFACE (f) Figure A-8.10 Test Temperature Detennination Chart for Circumferential Flaws at the inside Surface of the Upper Shell-Dome' Weld of the Steam Generator for the Secondary Leak Test A-93
SURFACE / EMBEDDED FLAW DEMARCATION LINE 0.13 IEik:ili Efili.i EMBEDDED FLAwiiib 2-tic
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- . surface.
0.07 h .. i--+=+~- ._s..:i fri "..._.. := C:..iin... lie.:.....E
- i
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0.06 3 mws iN ms 5p=u =n::
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- REGION MUST BE :r.==
.= ln. 0 i CONSIDERED F = ~' .t _.r: := ^#
- 2 '*
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"= = P2 h i-SURFACE [;il E.: ini!"i ^~ =i:::' - iiEi:.i ~~iiU! 0.05 + FLAWS CT" T. ~.. - Z 7-E.. Z. 7 ,,,) i:n-e-t=--/:. E=i: =i'sEM i. 1 :: !!.i!!!!= i (
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= u =..... =
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= - - =...:il =. =1.-- r-r .==...=.,..e. r..;.. =..=__=.,. i n =....~..:,. -e 0.01 N i s b .I.. ~ "E uf:._ =:.} =
- 4:.
r
- ...==
= O ' N N ~ O O.05 0.10 0.15 0.20 0.25 i DISTANCE FROM SURFACE (I) t Figure A-8.11 Test Temperature Determination Chart for Circumferential Flaws at the Outside Surface of the Upper Shell-Dome ? eld of Steam Generator for the Secondary Leak Test A-94
A-9 LOWER MIDDLE SHELL LONGITUDINAL WELD OF THE PRESSURIZER (PLO2) A-9.1 SURFACE FLAWS The geometry and tenninology for surface flaws in the region is depicted in Figure A-9.1. The following parameters must be prepared for surface flaw evaluation charts a o Flaw shape parameter, t a o Flaw depth parameter, t whers a = the surface flaw depth detected (in.) L = the surface flaw length detected (in.) t = wall thickness (t = 3.75") 4 The surface flaw evaluation charts for this region are listed below: i Figure A-9.2 Surface Flaw Evaluation Chart for Longitudinal Flaws the Inside Surface of the Lower Middle Shell Longitudinal Weld (PLO2) of the Pressurizer (Covered by Water Case) Figure A-9.3 Surface Flaw Evaluation Chart for Longitudinal Flaws at the Inside Surface of the Lower Middle Longitudinal Weld (PLO2) of the Pressurizer for (Uncovered by Water Case) Figure A-9.4 Test Temperature Determination Chart for Longitudinal Flaws at the Inside Surface of the Lower Middle Longitudinal Weld (PLO2) of the Pressurizer for Primary Hydro Test Figure A-9.5 Test Temperature Determination Chart for Circumferential Flaws at the Inside Surface of the Lower Middle Shell Longitudinal Weld (PLO2) of the Pressurizer for Primary Side Leak Test A-95
A-9.2 EMBEDDED FLAWS The geometry and terminology for embedded flaws is depicted in Figure A-9.1. Basic Data: 3.75 in. t = 6 = Distance of the centerline of the embedded flaw to the surface (in.) Flaw depth (deined as one half of the minor diameter) (in.) a = Flaw length (major diameter) (in.) L = Maxinum embedded flaw size in depth direction, beyond which it a = g must be considered a surface flaw, per Section XI characterization rules, a =6/1.4 n The following parameters must be calculated from the above dimensions to use the charts for evaluating the acceptability of an embedded flaw a o Flaw shape diameter, T Flawdepthparameter,f o Surfaceproximityparameter,f o Evaluation charts for embedded flaws at TLO2 are listed below: Figure A-9.6 Embedded Flaw Evaluation Chart for Longitudinal Flaws in the Lower Middle Shell Longitudinal Weld (PLO2) of the Pressurizer A-96
4 Figura A-9.7 Test Temperatura Dettrmination Ch;rt for Longitudinnl Flaws in the Lower Middle Shell Longitudinal Weld (PLO2) of the Pressurizer for Primary Hydro Test - Figure A-9.8 Test Temperature Determination Chart for Circumferential Flaws in the Lower Middle Shell Longitudinal Weld (PLO2) of the Pressurizer for Primary Side Leak Test l l 6 0 ) A-97
Figure A-9.1 Geometry and Terminology for Flaws at Lower Middle Shell Longitudinal Weid'(Pt02)' ~ - M f 4 pges Upper Head to Upper Shell held d t / D SURFACE a_ FLAW AT I upper s*eit to ete, unoer =tooie sneli PLO2 were T. 3.75 e Uccer Micdle $ae11 Pt:3 to Lower Middle Smell Weld lower Middle $ hell O Longitudinal held PLU o ,u '. to Miaoie sw ii EMBEDDED ---- ( w-e te to er sn ii weie FLAW AT e PLO2 I 4 i Iz g I Lower $helt to lg p t // ggi setter weae welo \\ 5-, F: l l
- f r_
- .3.75 E
A-98
20 Li :P H Il ! M -El .I ~ l l' !!!!.Tt! lill Illi I:11 (R1 11~ i ii iiii i i t !!!I ill! lill lii; !! ii iin iiii i il I si i .i. ! ! I -1 i .1 1 I f iti. !!4 iiii !!ii i i: iii! !!i fii its Li !!!! ! - ! !!!! !!.--!!!! !lili!i : - II il i l i i i i !!!! !H !!ll IIII Lli ili I ii !! i iT '-i ! ! il! ! 21!!!i
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g 7 iiW 1 i i i if Iiii it i i 1 it i I' I if,I I 'I I1 I II I! I' T WITHIN THIS ZONE THE SURFACE !'i = 12 IIii I"i *If '! ! 'I FLAW IS ACCEPTABLE BY CODE 6
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O O.1 0.2 0.3 0.4 0.5 FLAW SHAPE (a//) Figure A-9.2 Surface Flaw Evaluation Chart for Longitudinal Flaws the Inside t Surface of the Lower Middle Shell Longitudinal Weld (PLO2) of the Pressurizer (Covered by Water Case) i
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~ 0 0.05 0.10 0.15 0.20 0.25 DISTANCE FROM SURFACE (f) Figure A-9.6 Embedded Flaw Evaluation Chart for Longitudinal Flaws in the Lower Middle Shell Longitudinal Weld (PLO2) of the Pressurizer A-103
i SURFACE / EMBEDDED FLAW DEM ARCATION LINE 0.13 . d.i, in: :ii EMBEDDED FLAW Fi [ 52 "F
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0 0.05 0.10 0.15 0.20 0.25 DISTANCE FROM SURFACE ({} Figure A-9.8 Test Teciperature Determination Cnart for Circumferential Flaws in the Lower Middle Shell Lor.gitudinal Weld (FLO2) of the Pressurizer for Primary Side Leak Test A-105
A-10 UPPER MIDDLE SHELL TO LOWER MIDDLE SHELL WELD (PC03) AND UPPER SHELL TO UPPER MIDDLE SHELL WELD (PC04) 0F THE PRESSURIZER. A-10.1 SURFACE FLAWS The geometry and terminology for surface flaws in these two regions is depicted in Figure A-10.1. The following parameters nust be prepared for surface flaw evaluation charts a 3 o Flaw shape parameter, I a o Flaw depth parameter, t where a = the surface flaw depth detected (in.) f = the surface flaw length detected (in.) t = wall thickness (t = 3 75") The surface flaw evaluation charts for these regions of the pressurizer are listed below: Figure A-10.2 Surface Flaw Evaluation Chart for Circumferential Flaws at Inside Surface of Upper Middle Shell to Lower Middle Shell Weld (PC03) Upper Shell to Middle Shell Weld (PC04) of the Pressurizer Figure A-10.3 Test Temperature Determination Chart for Circumferential Flaws at the Upper Middle Shell to Lower Middle Shell Weld (PCO3) and the Upper Shell to Upper Middle Shell Weld (PC04) of the Pressurizer for Primary Hydro Test Figure A-10.4 Test Temperature Determination Chart for Ciretnferential Flaws at the Upper Middle Shell to Lower Middle Shell Weld (PC03) and the Upper Shell to Upper Middle Shell Weld (PC04) of the Pressurizer for Primary Side Leak Test A-106
A-10,2 EMBEDDED FLAWS The gecuetry and t:nninology fcr embedded flaws in this region is thown in Figura A-10.1. Ba21c Data: t = 3.75 in. 6 = Distance of the centerline of the embedded flaw to the surface (in.) Flaw depth (deined as one half of the minor diameter) (in.) a = Flaw length (major diameter) (in.) t = Maxinum embedded flaw size in depth direction, beyond which it a = g nust be considered a surface flaw, per Section XI characterization rules. a /1.4 g The following parameters must be calculated from the above dimensions to use the charts for evaluating the acceptability of an embedded flaw Flawshapediameter,f o Flawdepthparameter,( o. Surfaceproximityparameter,f o Evaluation charts for embedded flaws in these regions of the pressurizer are listed below: Figure A-10.5 Embedded Flaw Evaluation Chart for Circumferential Flaws at the Upper Middle Shell to Lower Middle Shell Weld (PCO3) and the Upper Shell to Upper Middle Shell Weld (PC04) of the Pressurizer Figure A-10.6 Test Temperature Determination Chart for Circumferential Flaws at the Upper Middle Shell to Lower Middle Shell Weld (PCO3) and the Upper Shell to Upper Middle Shell Weld (PC04) of the Pressurizer for Both Primary Hydro and Primary Side Leak Test A-107
Figure A-10.1 Geometry and Terminology for Flaws at Upper l11ddle Shell to Lower Middle Shell to Lower Middle Shell Weld (PC04) and Upper Shell to Upper Middle Shell Weld (PC04) A ...,upp., ... to upper sn.n weie r D SURFACE a_ FLAW AT I upper seen to PC03 & PC04 rce, upper moei, so,n Weid - :_w 7 3.75 c '[ uccer meste seats Pte3 to Lower Middle shell t e ,,,1, se,n e Longitudinal tele Pk22 EMBEDDED 6 '"3 Il'tCTlil($a FLAW AT PC03 & PC04 m-Y E a ' !!L5ll" ' f ~ w 3, s- -! -W. w__ i T. 3.75 ( A-108
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Figure A-10.4 Test Temperature Determination Chart for Ciretriferential' Flaws at the Upper Middle Shell to Lower Middle Shell Weld (Pc03) and the Upper Shell to Upper Middle Shell Weld (PC04) of the Pressurizer for Primary Side Leak Test
i SURFACE / EMBEDDED FLAW DEM ARCATION LINE 0.13... .. dili 'i.:l:i: . [ 8 iE ii)Eii ~^ '. E. EMBEDDED FLAWi i !:!!!N it : MkY* i ..I M h 4 0.12
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