ML20055J368
| ML20055J368 | |
| Person / Time | |
|---|---|
| Issue date: | 07/06/1989 |
| From: | Beckjord E NRC OFFICE OF NUCLEAR REGULATORY RESEARCH (RES) |
| To: | Jordan E Committee To Review Generic Requirements |
| Shared Package | |
| ML20055C236 | List: |
| References | |
| FRN-59FR979 AC93-1-021, AC93-1-21, NUDOCS 9008020156 | |
| Download: ML20055J368 (29) | |
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f1EliORANDUM FOR:
Edward L. Jordan, Chairman Committee to Review Generic Requirements el FROM:
Eric S. Beckjord, Director Office of Nuclear Regulatory Research t
SUBJECT:
REQUEST FOR CRGR REVIEW 0F PROPOSED RULE TO INCORPORATE BY REFERENCE THE 1988 ADDENDA 0F SUBSECTION IWE, DIVISION 1, OF THE ASME BOILER AND PRESSURE YESSEL CODE By memorandum dated June 13, 1989, I transmitted a proposed rule to the CRGR for review and approval. The proposed rule would amend 10 CFR 50.55a to incorporate by reference the 1986 Edition with Addenda through the 1987 Addenda of Subsection IWE, " Requirements for Class MC and Metallic Liners o' Class CC Components of Light-water Cooled Power Plants," of Section XI, of the l
American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code. As indicated in that memorandum, there have been numerous interoffice discussions on the appropriate backfit section to cite. These discussions have delayed. forwarding the proposed rule.
During this delay, the ASME has issued the 1988 Addenda to the Code. The ASME j
will publish the 1989 Edition on July 1, 1989. The 1989 Edition is the 1986 Edition as modified by the 1986 Addenda 1987 Addenda, and the 1988 Addenda.
The changes to Subsection.1WE in the 1988 Addenda-are either technically minor or are editorial. Therefore RES prop.ses to additionally incorporate by reference the 1988 Addenda and the 1989 Edition. This additional incorporation by reference has been approved by OGC, ADM -GPA, and AEOD. The-technical content of this addition is acceptable to NRR; however, they continue to have-the concerns expressed in the June 13, 1989 memorandum,regarding the citation relative to backfit. is the 1988 Addenda. is a comparison between the 1988' Addenda and the previous addenda.
5
,j wJ vv
%t Eric S. Beckjord, D,ir ctor Office of Nuclear Re ulatory Research
Enclosures:
As stated 9008020106 890823 REVGP NRCCRGR, PDR PDC 1
MEETING 167 y
4
1 7
DISTRIBUTION: w/ encl.
ESBeckjord,RES DFRoss, RES TSpeis, RES GAArlotto, RES RBosnak, RES JCostello,ES AMurphy R RES TMurley, NRR LShao. NRR JRichardson, NRR CYCheng, NRR KWiciiman - NRR MHum, NRR
'GJohnson, NRR FGillest.ie, NRR FLitton, '9R c
EJordan, NRR EBrown, AEOD DGrimsley, RM/DRR JPartlow, OSP WMcDonald, ARM STreby, 0GC EJakel, 0GC BMorris, RES HParcover, RMB SDuraiswamy, A:?tS' SFeld, RES i
F l
l l
l l
JUL 6 1989 i
MEMORANDUM FOR:
Edward L. Jordan, Chairman Committee to Review Generic Requirements FROM:
Eric S. Beckjord, Director Office of Nuclear Regulatory Research
SUBJECT:
REQUEST FOR CRGR REVIEW OF PROPOSED RULE T0 INCORPORATE BY REFERENCE THE 1988 ADDENDA 0F SUBSECTION IWE, DIVISION 1, OF THE ASME BOILER AND PRESSURE' VESSEL CODE By memorandum dated June 13, 1989, I transmitted a proposed rule to the CRGR for review and approval. The proposed rule would amend 10_CFR 50.55a to l
incorporate by reference the 1986 Edition with Addenda through the 1987 Addenda-of Subsection IWE, " Requirements for Class MC and Metallic Liners of j
Class CC Components of Light-water Cooled Power Plants," of Section XI, of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel j
Code. As indicated in that memorandum, there have been numerous interoffice discussions on the a)propriate backfit sectiin to cite.
These discussions have delayed-forwarding tie proposed rule.
During this delay, the ASME has issued the 1988 Addenda to the Code. The ASME '
will publish the 1989 Edition on July 1, 1989.
The 1989 Edition is the 1986 Edition as modified by the'1986 Addenda, 1987 Addenda, and the 1988 Addenda.
The changes to Subsection IWE in the 1988 Addenda are-either technically minor or are editorial. Therefore RES proposes to additiona.11y incorporate by reference the 1988 Addenda and the 1989 Edition.
This additional incorporation by reference has been approved by OGC, ADM,-GPA, and AEOD.
The technical content of this addition is acceptable to NRR; however, they continue to have the concerns expressed in the June 13, 1989 memorandum regarding the citation l
relative to backfit.
l
! is the 1988 Addenda. Enclosure 2 is a comparison between the_1988 Addenda and the previous addenda.
CRICYRAL SIGMD BY Eric S. Beckjord, Director Office of Nuclear Regulatory Research
Enclosures:
As stated DISTRIBUTION:
RESReading DCS R-2411 WNorris JCostello AMurphy GMillman MVagins RBosnak GArlotto STreby HDenton LShao EJordan PNorry Dross EBeckjord *See previous sheet for concurrences SSEB/DE/RES SSEB/DE/RES SSEB/DE/RES EEB/DE/RES EEB/DE/RES DD:DE/RES WNorris:fkn*
JCostello*
AMurphy*
GMillman*
MVagins*
RBosna k*
6/12/89 6/12/89 6/12/89 6/12/89 6/12/89 57f 9
D:DE/RES OGC GPA NRR AE00 ADM p)RS GArlotto* STreby
- HDenton
- LShao
- EJordan
- PNorry
- 9os 6/13/89 6/1989 6/ 2?/89 6/2989
~ ~~bTl W89~~6 / ~15/ 89 ~ }//69 D:RES EBeckjord 1/fe/89-l
1
- I 2
1 MEMORANDUM FOR:
Edward L. Jordan, Chairman Committee to Review Generic Requirements FROM:
Eric S. Beckjord, Director Office of Nuclear Regulatory Research
SUBJECT:
REQUEST FOR CRGR REVIEW 0F PROPOSED RULE TO INCORPORATE BY REFERENCE THE 1988 ADDENDA 0F SUBSECTION IWE, DIVISION 1,-
0F THE ASME BOILER AND PRESSURE VESSEL CODE By memorandum dated. June 13, 1989, I_ transmitted a proposed rule to the CRGR for review and approval.
The proposed rule would amend 10 CFR 50.55a to incorporate by reference the 1986 Edition with Addenda through the 1987 Addenda of Subsection !WE, " Requirements for Class MC and Metallic Liners of Class CC Components of Light-water Cooled Power Plants," of Section XI, of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code. As indicated in that memorandum, there have been numerous interoffice discussions on the appropriate backfit section to cite.
These discussions have delayed forwarding.the proposed rule.
During this delay, the ASME has issued the 1988 Addenda to the Code.
The ASME will publish the 1989 Edition on July 1,1989.
The 1989 Edition is the 1986-Edition as modified by the 1986 Addenda, 1987 Addenda, and the 1988 Addenda, The changes to Subsection IWE in the 1988 Addenda are either technically minor or are editorial.
Therefore RES proposes to additionally incorporate by reference the 1988 Addenda ~and the 1989 Edition. This additional incorporation by reference has been approved by OGC, ADM, GPA and AE00. The technical content of this addition is acceptable to NRR; however, they continue to have the concerns expressed in the June 13, 1989 memorandum regarding the citation relative to backfit. is the 1988 Addenda. is a comparison between the 1988 Addenda and the previous addenda.
Eric S. Beckjord, Director Office of Nuclear Regulatory Research
Enclosures:
As stated DISTRIBUTION: RESReading DCS R-2411_ WNorris JCostello AMurphy GMillman MVagins RBosnak GArlotto STreby HDenton LShao EJordan PNorry Dross EBeckjord *See previous sheet for concurrences SSEB/DE/RES SSEB/DE/RES SSEB/DE/RES EEB/DE/RES EEB/DE/RES DD:DE/RES WNorris:fkm*
JCostello*
AMurphy*
GMillman*
MVagins*
RBosna k*
6/12/89 6/12/89 6/12/89 6/12/89 6/12/89 6/13/89 D:DE/RES OGC-GPA NRR AE0D FA ADM DD:RES i
GArlotto* STreby HDenton LShao EJordan M PNorry Dross j
6/13/89-6/ /89 6/ /89 6/ /89 6/ /89 6//f/89 6/ /89 D:RES EBeckjord 6/ -/89
+
1 r
2 MEMORANDUM FOR:
Edward L. Jordan, Chairman Committee to Review Generic Requirements FROM:
Eric S. Beckjord, Director 1
' Office of Nuclear Regulatory Research
SUBJECT:
REQUEST FOR CRGR REVIEW 0F PROPOSED RULE TO INCORPORATE BY REFERENCE THE 1988 ADDENDA 0F SUBSECTION-IWE, DIVISION 1, 0F THE ASME BOILER AND PRESSURE VESSEL CODE By memorandum dated June 13, 1989, I transmitted a proposed rule to the CRGR for review and approval. The proposed rule would amend 10 CFR 50.55a to incorporate by reference the 1986 Edition with Addenda through the 1987 Addenda of Subsection IWE, " Requirements for Class MC and Metallic Liners of Class CC Components of Light-water Cooled Power Plants,".of Section XI, of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code. As indicated in that memorandum, there have been numerous interoffice discussions on the appropriate backfit section to cite. These discussions have delayed forwarding the proposed rule.
During this delay, the ASME has issued the 1988 Addenda to the Code. The ASME '
will publish the 1989 Edition on July 1, 1989. The 1989 Edition is the 1986 Edition as modified by the 1986 Addenda,1987 Addenda, and the 1988 Addenda.
The changes to Subsection IWE in the 1988 Addenda are either technically minor or are editorial. Therefore RES proposes to additionally incorporate by reference the 1988 Addenda and the 1989 Edition.
This additional incorporation by reference has been approved by OGC, ADM, GPA, and AE00. The technical content of this addition is acceptable to NRR; however, they continue to have the concerns expressed in the June 13, 1989 memorandum regarding the citation relative to backfit.
l is the 1988 Addenda. is a comparison between the 1988 Addenda and the previous addenda.
Eric S. Beckjord, Director l
i Office of Nuclear Regulatory Research l
l
Enclosures:
As stated DISTRIBUTION:
RESReading DCS R-2411 WNorris JCostello AMurphy GMillman MVagins RBosnak GArlotto STreby HDenton LShao EJordan PNorry Dross EBeckjord *See previous sheet for concurrences i
SSEB/DE/RES SSEB/DE/RES SSEB/DE/RES EEB/DE/RES EEB/DE/RES DD:DE/RES L
WNorris:fkm*
JCostello*
AMurphy*
GMillman*
MVagins*
RBosna k*
i 6/12/89 6/12/89 6/12/89 6/12/89 6/12/89 6/13/89 l
D:DE/RES OGC -
G g NRP AE00 ADM DD:RES-l GArlotto*
by H0tnton LSh o Edordan PNorry Dross 6/13/89
///89 jd f 89 6/p89 6/ /89 6/ /89 6/ /89 6/ f l
D:RES AIlpdf EBeckjord 6/ /89
4
/
2 MEMORANDUM FOR:' Edward L. Jordan, Chairman 1:
Committee to Review Generic Requirements FROM:
Eric S. Beckp rd, Director Office of Nuclear Regulatory Research
SUBJECT:
REQUEST FOR CRGR REVIEW 0F PROPOSED RULE T0 INCORPORATE BY REFERENCE THE 1988 ADDENDA 0F SUBSECTION IWE, DIVISION 1, OF THE ASME-B0llER AND PRESSURE VESSEL CODE L
By memorandum dated June 13, 1989, I transmitted a proposed rule to the CRGR for review and approval.
The proposed rule would amend 10 CFR 50.55a to incorporate by reference the 1986 Edition with Addenda through the 1987 Addenda of Subsection IWE, " Requirements for Class MC and Metallic Liners of r
Class CC Components of Light-water Cooled Power Plants," of Section XI, of the AmericanSocietyofMechanicalEngineers(ASME)BoilerandPressureVessel' Code. As indicated in that memorandum, there have been numerous interoffice-L discussions on the appropriate backfit section to cite. These discussions have delayed. forwarding the proposed rule.
During this delay, the ASME has issued the 1988 Addenda to the Code.
The ASME will publish the 1989 Edition on July 1, 1989.
The=1989 Edition is the 1986 Edition as modified by the 1986 Addenda, 1987 Addenda, and the 1988 Addenda.
The changes to Subsection IWE in the'1988 Addenda are either technically minor or are editorial. Therefore RES proposes to additionally incorporate by i
reference the 1988 Addenda and the 1989 Edition. This additional incorporation by reference has been approved by OGC, ADM.L GPA and AE0D. The technical content of this. addition is acceptable to NRR; however, they continue to have the concerns expressed in the June 13, 1989 memorandum regarding the' citation relative to backfit.
4 is the 1988 Addenda.
Enclos re 2 is a comparison between the 1988 Addenda and the previous addenda.
/
i
/ Eric S. Beckjord, Director
/ Office of Nuclear Regulatory Research
Enclosures:
As stated DISTRIBUTION: -RESReading DCS R-2411 WNorris JCostello AMurphy GMillman MVagins RBosnak GArlotto STreby' HDenton -LShao EJordan PNorry Dross EBeckjord *See previous sheet for concurrences
- SSEB/DE/RES SSEB/DE/RES SSEB/DE/RES EEB/DE/RES' EEB/DE/RES DD:DE/RES WNorris:fkm*
JCostello*
AMurphy*
GMillman*
MVagins*
RBosna k*
6/12/89 6/12/89 6/52/89 6/
6/12/89 6/13/89 D:DE/RES OGC GPA NRR
~D-ADM DD:RES GArlotto* STreby HDenton LShao*
E!ordan PNorry Dross l
6/13/89 6/ /89 6/ /89 6/ /89 6
9 6/ /89 6/ /89
-D:RES EBeckjord i
6/ /89'
}
i 2
' MEMORANDUM FOR:
Edward L. Jordan, Chairman Committee to Review Generic Requirements FROM:
Eric S. Beckjord, _ Director Office of Nuclear Regulatory Research i
SUBJECT:
REQUEST FOR CRGR REVIEW 0F PROPOSED RULE TO INCORPORATE BY REFERENCE THE 1988 ADDENDA 0F SUBSECTION IWE, DIVISION 1 _
0F THE ASME BOILER AND PRESSURE VESSEL CODE By memorandum dated June 13, 1989, 1. transmitted a proposed rule to the CRGR for review and approval. The proposed' rule would amend 10 CFR 50.55a to incorporate by reference the 1986 Edition with Addenda through-the 1987 Addenda of Subsection IWE, " Requirements for Class MC and Metallic Liners of Class CC Components of Light-water Cooled Power Plants," of Section XI, of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code. As indicated in that memorandum, there have been numerous interoffice discussions on the appropriate backfit section to cite. These discussions have-delayed forwarding the proposed rule.
During this delay, the ASME has issued the 1988 Addenda to the Code.
The ASME will publish the 1989 Edition on July'1, 1989. The 1989 Edition is the 1986 Edition as modified by the 1986 Addenda, 1987 Addenda, and the 1988 Addenda.
The changes to Subsection IWE in the 1988 Addenda are either technically minor or are editorial.
Therefore RES proposes to additiona11y incorporate by reference the 1988 Addenda and the 1989 Edition..This additional incorporation by reference has been approved by OGC, ADM,-GPA, and AE00. The_ technical content of this addition is acceptable to NRR; however, they continue to have the concerns expressed in the June 13, 1989 memorandum regarding the citation
. relative to backfit. is the 1988 Addenda. is a comparison between the 1988 Addenda and the previous addenda.
Eric S. Beckjord, Director Office of Nuclear Regulatory Research
Enclosures:
As stated DISTRIBUTION: RESReading DCS R-2411 WNorris JCostello AMurphy GMillman MVagins RBosnak GArlotto STreby HDenton LShao EJordan PNorry Dross EBeckjord *See previous sheet for concurrences SSEB/DE/RES.
SSEB/DE/RES SSEB/DE/RES EEB/DE/RES EEB/DE/RES DD:DE/RES WNorris:fkm*
JCostello*
AMurphy*
GMillman*
MVagins*
RBosna k*
6/12/89 6/12/89 6/12 8 6/12/89 6/12/89 6/13/89 D:DE/RES OGC GPA AEOD ADM DD:RES
/
EJordan PNorry Dross GArlotto* Sireby HDenton 6/13/89 6/ /89 6/ /89 6/16/89 6/ /89 6/ /89 6/ /89 D:RES EBeck,iord 6/ /89
g MEMORANDUM FOR: Edward L. Jordan, Chairman
~
Committee to Review Generic Requirements.
FROM:
Eric S. Beckjord, Director Office of Nuclear Regulatory Research
SUBJECT:
REQUEST FOR CRGR REVIEW OF PROPOSED RULE-T0 INCORPORATE BY-REFERENCE THE 1988 ADDENDA 0F SUBSECTION IWE, DIVISION 1, OF THE ASME BOILER AND PRESSURE YESSEL CODE By memorandum dated
, I transmitted a proposed rule to the CRGR for review and approval. The proposed rule would amend 10 CFR 50.55a to incorporate by reference the 1986 Edition with Addenda through the 1987 Addenda of Subsection IWE, " Requirements for Class MC and Metallic Liners of Class CC Components of Light-water Cooled Power Plants," of Section XI, of the American Society of Mechanical Engineers (ASME) Boiler and Pressure Vessel Code. As indicated in that memorandum, there have been numerous interoffice discussions on the a)prepriate backfit section to cite. These discussions have delayeo forwarding tie proposed rule.
During this delay, the ASME has issued the 1988 Addenda to the Code. The ASME '
will publish the 1989 Edition on July 1, 1989.
The'1989 Edition is the 1986 Edition as modified by the 1986 Addenda,1987 Addenda, and the 1988 Addenda.
The changes to Subsection IWE in the 1988 Addenda are either technically minor or are editorial. Therefore RES proposes to additionally incorporate by reference the 1988 Addenda and the 1989 Edition.
This additional incorporation by reference has been approved by OGC, ARM, GPA, and AE0D.
This addition has also been approved by the technical division within NRR, but the concern about adequate safety highlighted in the memorandum still exists within NRR:PTSB. is the 1988 Addenda. is a comparison-between the 1988 Addenda and the previous addenda.
Eric S. Beckjord, Director Office of Nuclear Regulatory Research
Enclosures:
As stated DISTRIBUTION: RESReading DCS R-2411 WNorris JCostello AMurphy GMillman MVagins RBosnak GArlotto STreby HDenton LShao EJordan PNorry Dross EBeckjord SSEB/DE/RES SSEB/DE/RES SSEB/DE/RES. EEB/DE/RES EE
/RES DD:
/RES.
W r is:fkm JCogJo AMur h G
an MVagins-R ak 6 11 89 6/+/89 6//t/89 6/ W/89 6/A/89 6// /89
[
S OGC GPA NRR AE00 ADM DD:RES 0
otto STreby HDenton LShao EJordan PNorry Dross S/l3/89 6/ /89 6/ /89 6/ /89 6/ /89 6/ /89 6/ /89 D:RES EBeckjord 6/ /89 I
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SUBSECTION IWE 4-REQUIREMENTS FOR CLASS MC AND METALLIC LINERS OF CLASS CC o
COMPONENTS OF LIGHT-WATER COOLED POWER PLANTS
(
IWL1000 Scope and Respomelbility................................................................... 201 201-IWE.1100 Scope.........................................................................................
201 IWLl200 Components Subject to h = Nation.....................................................
201 IWE.1210 Enamination Requirements.................................................................
IWE.1220 Components Enempted From Enamination.............................................. 201, 201.1 IWE.1230 A ccessibility for Enamination..............................................................
IWE.123i A ccessible Welds........................................................................
IW L1232 Inaccessible We1ds.....................................................................
(
202 IWE.2000 F== Imation and laspection..............................................................
202 IWE.2200 Prese rvice Enamination....................................................................,
202 l
IWL2400 Inspection 5ched ule.........................................................................
l IWL2410 Inspection Program......................................................................... 20 203 L
IW L2411 I nspection Program A......................................................................
203 IWL2412 I nspec t ion Program B......................................................................
203
[
IWE-2420 Successi ve laspections.....................................................................
~
IWE.2430 A dditional Examinations..........................................................,........ 203-IWE.2500 Examination and Pressure Test Requirements.......................................... 203 IWE 2600 Condition of Surface to Be Examined................................................... 203.1 213' IWE.3000 Acceptance Standards............,.........................................................
p IWE 3100 Evaluation of Nondestructive Examination Results.................................... 213 IWE-3110 Preservice Enamina tions.................................................................... 2 IWE.3111 General.......................................................................................
213 213 I W E.3112 Acceptance..................................................................................
213 IWE 3114 Repairs and Ree naminations...............................................................
213 IWE 3II5 Review t,y A uthori ties......................................................................
IWE.3120 inservice Nondestructive Examinations................................................... 213 IWE.3121 Genera!.......................................................................................
213 i
2I3 -
IWE 3122 Acceptance................................................................................
213 IWE.3122.1 Acceptance by Examination...............................................................
IWL3122.2 A cceptance by Repai r.................................................................. 213 IWF4122.3 Acc etit a nce by R eplacement............................................................ 214
-214 IWE 3122.4 Acceptance by Evaluation..........
197 A86 A87 A88 e
~.w
214 IWE-3124 R epairs and R ee naminations..............................................................
L 214 g
IWE.3125 R evie w by A ut hori t ies......................................................................
214 IWE.3130 I nservice Visual E samina tions.............................................................
214' IW L3200 S u pplemen tal Ena minations................................................................
214 IWE.3400 Standards.....................................................................................
214 IW L3410 Acceptance Standards.......................................................................
214 IW L3430 Acceptabilit y.................................................................................
214 IWE.3500 Acceptam Standar ds.......................................................................
IWE.3510 Standards for Examination Category E.A. Pressure Retaining Welds in 2id Vessels......................................................................................
214 IWE.3510.1 Visual Examinations on Coated Areas...................................................214 IWL3510.2 Visual Enaminations on Noncosted Ar eas..............................................
IWL35tl Standards for Enamination Category E.A l. Nonpressure. Retaining 215 Welds.......................................................................................
215 IWL3511.1
- Visual Examinations on Coated Areas...................................................
215 IWE.3511.2 Visual Examinations on Noncosted Areas..............................................
IWL3512 Standards for Examination Category E-B. Pressure Retaining Welds in 215 Containment Penetrations...............................................................215 IWE.3512.1 Visual Examinations on Costed Areas...................................................
215 IWE.3512.2 Visual Examina tions on Nonconted Areas..............................................
IWE.3513 Standards for Examination Category E.C. Pressure Retaining Welds in 215 Airlock s and Equipment Hatc hes......................................................
215 IWE.3513.1 Visual Examinations on Coated Areas...................................................
215 IWE.351? 2 Visual Examinations on Nonconted Areas..............................................
215 IWE.3514 Standards for Examination Category E.D. Seals and Gaskets.......................
215 iWE.3514.1 Visual Examinations.......................................................................
215 IWL3515 Standards for Examination Category E.E. Integral Attachments....................
215 IWE.3515.1 Visual Examinations on Cos ed Areas...................................................
a 215 IWL3515.2 Visual Examinations on Noncosted Areas..............................................
TWE.3516 Standards for Evninstion Category LF. Pressure Retaining Dissimilar 215 Metal Weld!.
215 IWE.3516.1 Visual Examinations on Coated A r eas.........,,.......................................,
215 IWE.3516.2 Visual Examinations on Noncoated Areas..............................................
215 IWE.3516.3 Surface Examinat ions......................................................................
216 IWE.3517 Standards for Examination Category E 3 Pressure Retaining Bolting.............
216 IWE.3517.1 Vis ual Examina tions.......................................................................
216 IWE.3517.2 Bolt Torque or Bolt Tension..............................................................
IWE.3518 Standards for Examination Category E.P. All Pressure Retaining -
216 Components..............................................................................
216 IWE.3518.1 V is ual Ex aminations.....................................................................
217 IWE-4000 Repair Procedures.........................................................................
217 IWL4100 Scope..............................,,,,.......................................................
217 IWE.4200 B utte rbead Tempe rbead R epair.........................................................
217 IWE 4210 Gene ral R equ ire ments..............................................................
218.1
!W L4220 Weldin g Qualifica tions.................................................................
218.1 IWE-4221 Proced u r e Q ualification..................................................................
219 IWE-4222 Pe rformance Qualifica tion..............................................................
219 IWE 4223 Prod uction Teat................................................................
219 IWL4224 Weldin g Tec h nique..........................................,.
221 IWL4225 Examination.......
221 IWE 4226 Repair Techniques...........
221 IWE-4227 Half Bead Repair.........
A86 198 A87 A88 m
m
224 tWE 9000 System Pressure Teste....................................................................,
224 4
IWE.5200 System Test Requirements................................................................,
224 IWE.5210 General.......................................................................................
224 IWE.5220 Tests Following Repair, Modi 6 cation. or Replacement................................
224 IWL5221 14akageTest.................................................................................
224 IWE.5222 Deferral of tankage Tests.................................................................
l 224
+
IWL5240 Visual ? aamina tion.........................................................................
224 IWE.5250 Corrective Measures.....................................................................,
225 IWL7000 Replacements.................................................................................
225_
j IWE.7100 5 cope..........................................................................................
225 IWE.7300 I nstallation Not Requiring Welding......................................................
225 IWE.7310 M ec hanical 3 oints...........................................................................225 IWE.7320 Bolted Connections..............................................................
225 IWE.7400 Installation Rguiring Welding............................................................
225 IWL7600 Materials.....................................................................................
Figures 203.1 IWE.25001 Dummitar Metal Welds....................................................................
220 IWE.4224-1 Tempervend Technique...................
IWE.4224 2 Illustration of the Temperbead Technique for Reinforcement of 221.
Existing Fillet Welds.....................................................................
222 TWE.42261 Repair Techniques for improper Temperbead Spacing...............................
223 IWL4226 2 Example of Weld Undercut Repair Technique........................................
(
Tables 203 IWE.2411 1 Examination Program A.......................................,...........................
IWL24121 Examination Program B.................................................................
203 IWE.25001 Exammation Categories.....................................................................
204 215 IWE.34101 Acceptance Standards.....................................................................
4 i
A96 199 A87 ABB
f t
ARTICLE. IWE 2000 EXAMINATION AND INSPECTION (2) If repair or replacement is performed while A88 the plant is in service, the preservice examination may be deferred to the next scheduled plant outage, provided nondestructive examination in accordance IWE 2200 PRESERVICE EXAMINATION
(); grTs [
eTes
)rNyIWE-(a) Examinations listed in Table IWE 25001 shajj
$220, the preservice examination may be performed oc completed prior to initial plant startup. In addition,-
either prior to or following the test, (e) Welds made as part of a repair or a replacement A46 these preservice examinations shall be extended to Program shr.!! be examined in accordance with the include essentially 100% of the pressure retaining requirements of IWE 4000, except' that for welds welds in components not exempted by IWE 1220.
joining Class MC or Class CC components to items (b) If visual examinations are required, these exam-inations shall be performed in accordance with IWE.
designed, constiocted, and installed to the require-ments of Section Ill, Class 1,2 or 3, the examiriation*
2600, fo!!owing the completion of the pressure test requirements of IWB 2000, IWC 2000, or IWD 2000, requireo by the Construction Code and after applica.
i tion of protective coatings (e.g., paint) when such as applicable,shall applyc (f) Preservice examination for a repair or replace-(
coatings are required.
ment may be. conducted prior to installation provided:
As4 (c) If surface examinations are required by this (1) the examination is performed after the pres.
Article, shop or field examinations in accordance with sure test required by the Construction Code has been NE 5000 for Class MC or CC 5500 for Class CC may serve in lieu of the on site preservice examinations completed; (2) the examination is conducted under condi-provided:
tions and with equipment and techniques equivalent to
(/) the examinations are conducted ts the same those that are expected to be employed for subsequent -
method with equipment and techniques eqaalent to inse:vice examinations; and those that are expected to be employed for subsequent (3) the shop or 6 eld examination records are, or inservice examinations; can be, documented and identined in a form consistent (2) the shop or field examination records are, or can be, documented and identified in a form consistent with that required by IWA 6000.
(g) When coatings over welds.are reapplied, the A86 with those required in IWA 6000; and condition of the new coating over the weld area shall
(
(J) the examinations' are performed after the be documented in the preservice examination records, pressure test required by the Construcdon Code has been completed.
(d) If a vessel or a portion thereof is repaired or replaced during the service lifetime of a power unit, the preservice examination requirements for the vessel repair or replacement and the attsching welds shall be IWE 2400 INSPECTION SCHEDULE A87 met.
IWE 2410 INSPECTION PROGRAM' A87-(1) If the repLr or replacement is performed while the plant is not in service, the preservice Inservice examinations and system pressure tests examination shall be performed prior to the resump-may be performed during plant outages such as tion of service.
refueling shutdowns or maintenance shutdowns.
202
_ _. _ ~. _.. _
IMT 3411-TMT 2SO t
REQUIREMENT 1s FOR Cl. ASS MC COMPONEh*TS 1M EdWa j
TABLE TWE.2412 2 A47 A47 TABLE TWD24112 EXAMINATION PROGRAM B t
j CXAMINATION PROGRAM A inspction Period, Minimum Maximum kpection Per6ed, Minimum Man 6 mum inspMile* C44nder Years of Enaminations (meminations Inspectlen Calender Years of Esaminatlens Etaminatlens inteNal Plant Servke Completed. % C. edited, %
Intervat Plant $eNke Completed, % Credited, %
)
1h 3
100 100 1st 3
16 34 7
SD 67 10 100 100 2nd 7
33 67 10 100 100 2nd 13 16 34 17 SD 67 Pd 13 16 34 20 100 100 17 40 50 20 75 23 100 100 3rd 23 16 34 27 SD 67 30 100 100 4th 27 e
16 30 ts 34 33
$0 67 4th 33 16 34 37 SO 100 37 76 100 40 100 40 100 1
(b) If component examination results require evalu.
t As7 IWL24tl laspection Program A ation of Anws in accordance with IWE 3000, and the component quali6es as conditionally seceptable for (a) With the exception of the esaminations that C'"I "ed seMee, the areas conu,ng such Asws may be deferred until the end of an inspection interval, ahall oc reenamined during the next inspection period as specined in Table IWL25001, the required exam.
ed in the schedules of the inspection programs of instions shall be completed during each successive
,E.24 o
2 2 tion intenal, in accordance with Table IWL g{
(
reveal that the' Anws remain essentially unchanged for (b) Ihe inspection period speci6ed in (a) above may the next inspection period, the component exam.
be decreased or extended by as much as 1 year to ination schedule may revert to the ongmal schedul: of enable an inspection to coincide with a plant outage, auccessive inspections, within the limitations of IWA.2430(c)
IW L2430 ADDITIONA1. EXAMINATIONS Ac7 IWE.2412 laspection Program B (a) With the exception of the examinations that (a) Examinations performed during any one inspec-may be deferred until the end of an inspection interval, tion that reveal indications that exceed the acceptance as specined in Table IWL25001, the required exam.
standards of Table IWL34101 shall be extended to inations shall be completed during each successive include an additional number of areas within the same inspection interval, in accordance with Table IWL category approximately equal to the number of areas g
initially examined during the inspection.
2412 1.
(b) The inspection period speci6ed in (a) above may (b) In the event further indications that exceed the l
be decreased or extended by as much as 1 year to acceptance standards of Table IWL34101 are re.
l enable an inspection to coincide with a plant outage, vealed, all of the remaining areas within the same within the limitations of lW A.2430(d).
category shall be examined to the extent speci6ed in i
Table IWE.25001 for the inspection interval.
IWE.2500 EXAMINATION AND Ass Ae7 IWE.2420 SUCCESS!YE INSPECI10NS PRESSURE TEST (a) The sequence of component examinations estab-REQUIREMENTS lished during the 6rst mspection interval shall be repeated during each successive inspection interval, to (a) The method of examination for the components, the extent practical.
parts, and items (e.g., seals, gaskets, and bolts) of the 20)
- '.*.'
- :2 00 !" T 2 "
SECrlON XI-DIV1510N I 1986 Edities
_ t nom. sue s.%
pressure retaining boundarit.s shall comply with those A.s tabulated in Table IWE 221, except where alter.
I nate examination methods ree used that meet the requirements ofIWA 2240.
i (b) When paint or coatings over welds are to be l
in,,
g y,,
removed, the paint or coatings over the welds shall be visually examined in secordance with Table IWE-k
/
2MI prior to removal.
I
\\
c'
o
!WE 26no CONDITION OF SURFACE TO BE EXAMINED If a containment vessel is painted or coated to protect surfaces from corrosion, preservice and inter.
vice visual esaminations shall be performed without
_ t nam. ori.
c.o the removal of the paint or conting. For aruns that r*9uire 8urf*C' of 8UPP emental esamination, the paint l
A
.s c.O or coating shall be removed to the base metal or weld surface. After examination, the areas shall be repaired, FIG. IWE 25001 DIS $1MILAR METAL WELDS if required, and repainted or reconted.
(
203.1 1
I 9
i 1
l l
a j
t ARTIF " IWE-4000 REPM4 PF JCEDURES i
i i.
Ass IWE 4100 SCOPE ferred to the holding or drying ovens and maintained at 22574$07, l
nis Article provides rules and requirements in
(!) During repalt welding, eiwtrodes shall be i
addition to those of IWA4000 for repa. T comPo-maintained in heated evens or heated portable con.
nents covered under the scope ofIWE.110L tainers in the repair aren until used. The oven j
temperature shall be maintained betwwn 225*F and 3$07. Eletrodes shall be used within 2 hr after removal from the holding or drying ovens or hated age portable containers. Elwtrodes removed from heated i
ovens for more than 2 hr, but less than 4 hr, shall be returned to a holding oven and held at a tempersture betwwn 2257 and 3$07 for at least 8 ht before use.
4 Ass IWFA300 BU'ITERBEAD TEMPERBEAD Electmda runed imm hated was or hated REPAIR portable containers for a period in escess of 4 hr shall t
(
(a) These requirements are for welding when the be rebaked in accordance with (b)(1) above before use, i
site or connguration of the repair leads to highly Electrodes shall not be rebaked more than once.
J retrained weld joints and when factors such as water (c) Welding meterials used in the repair shall be backing make prebest and postweld het treatments controlled during repair so that they are identined as imptactical, acceptable material until consumed.
(b) This repair technique is limited to P.No.1 Or.
(4) Welding material contaminated with oil, grease, No. I and p.No.1 Or. No. 2 pressure boundary water, or other foreign material shall not be used.
material.
(e) All welding material shall conform to the material testing requirements of NE 2000 for Class MC or CC 2$00 for Class CC. For each lot of covered IWE.4210 GENERAL REQUIREMENTS electrada, weld metal tests shall be made in accor.
dance with test requirements of NE 2431.1 for Class (a) The shielded metal arc welding process (SM AW) using low hydrogen electrodes shall be used.
MC or CC 2612.1 for Class CC, and the coupons shall
(-
(b) The following rules shall apply for low hydro.
be lated in the as welded condition. Impact tat gen electrodes used for the repair welding.
requirements and acceptance criteria shall be as (1) After receipt from the electrode manufacturer required by the Design Specincation for the compo-and before use, all covered electrodes f. hall be baked at ment base metalto be repaired.
the electrode manufacturer's recommended baking (f) Controlled poening of welds may be performed temperature. In no case shall the baking temperature to minimize distortion, provided it is also used on the be less than 650T or greater than 850T. The welds made to qualify the repair procedure and the temperature of the oven shall act exceed 3007 when production test assemb!... Ptening shall not be used on the electrodes are inserted for the baking cycle. The the initial layer of the wth! rs etal or on the fmal layer, temperature shall not be raised more than 3007/hr.
If peening is used, it shall be considered as an essential The total time above $00T, including the holding variable in the welding procedure.
time, shall not exceed $ hr. After baking and before (g) Fabrication and welding shall be sequenced to cooling below 2257, the electrodes shall be trans. ~ minimite thtrYfftetsUf testraint.
217, 218
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F#TA230-!%TA221 SECTION XI - DIVillON 1 1996 Edidae
!WE4230 WELDING QUALIFICATIONS
{
The welding procedure and welders shall be qual-66ed in accordance with Section IX and the additional requirements of Section III, eacept as a.odined or i
supplemented by IWE 422I through IWE 4223.
IWE4221 Procedure Quatineation Ato I
Welding procedure qualincation tests shall be per-t i
formed in accordance with section IX for groove welds and the additions) requirements of NE4000 for Class MC or CC 4000 for Class CC. Impact test requirements and accep nee criteria shall be as required by the Dmign $p location for the compo.
nest base material, r
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218.1
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!!'t! Ed!!re REQUIREMENTS FOR CLAts MC COMPONENTS IWE 4222-lWE 4224 4
IWE 4222 Performance Quali6 cation (9) actual weld electrode sites to be used for the butterbead layer and the temperbead or temperbead he welders shall be qualified on a radiographically g,).,,,
examined groove weld test in accordance with Section (10) range of electrode sites to be used to complete IX and by performance of the production test required the weld joint-by IWE-4223. De welder shall use the production (11) preheat and preheat maintenance within tol-Welding Procedure Specification and simulate typical erances spec 6ed in the Welding Procedure Spec-physical obstructions.
[6 cation; (12) prening, as applicable; IWE-4223 Predeetion Test (13) guides, templates, and natures used for weld placement, as applicable; in addit,on to the procedure quali6 cation test (14) maximum temperbead edge clearance (dimen-i requirements of IWE 4221, one production test is sion S) as shown in Figs. IWE 42241 and IWE 4224-required prior to any repair melding. A production 2 and the minimum temperbead edge clearances shall test simulates repair welding using the variables listed be recordsd[-gjyj, %um weave width for the tsutterbead in (a) and (b) below. A production test assembly may consist of one or more production tests. The variables listed in (a) and (b) below shall be evaluated by h
nion w Mi be of sumelem sin to performing a product, ion test. The production test permit removal of the test specimens required in (d) assembly shall be evaluated by performing the exam-g,,
(d) The production test shall be evaluated as fol-(a) e pr u tion test material that repre.
I#** '
sents the prenure boundary shall be of the same
(/) visual examination in accordance with IWA-material speci6 cation, type, clus, group number, or 2000 (VT 3) for compliance with the Welding P'roce-grade as the preuure boundary material to be repaired by welding. All other material shall be of the same P.
[' ##
"i examination and acceptance of the Number as those to be used in the repair. % hen the welds in the completed test assembly in accordance 1
original material is no longer manufactured, material with Subsection NE for Class MC or Subsection CC similar to the original material speci6 cation may be f Ch CC-substituted. Electrodes used for the produc'. ion test (J) etarriination of two cross sections for each shall be the same speci6 cation and classincation as production test is required. The cross sections shall be those used for the weld repair and shall be treated as polished and suitably etched and examined at x10 required by 1% E 4210(b)'
magni 6 cation. Cross sections containing cracks or (b) De production test shall simulate the repair.
other deleterious conditions shall be cause for rejec-The following parameters shall be recorded:
tion of the production test.
(1) all euential and wt plementary cuential van. -
(4) a minimum of two microhardness traverses ables listed for the process h %ction lA; shall be taken from one cross section for each (2) nominal pressure boundary bue metal production test. The traverses shall be taken from areas f maximum anticipated hardness including the (3
azimum nominal sttachment base metal t e of the butterbead layer as shown in Fig.1% E-t thickness-42241. The indentation spacing of the heat affected (4) weld joint geometry (including joint design a ne (HAZ) microhardness traverse shall consist of and At up tolerances) and the maximum nominal weld n t less than ten indentations. Hardness values for the thickness. For fillet welds, the nominal thickness is the traverse shall be recorded. The maximum hardness for throat thickness, and for groove welds, the nominal the pressure boundary HAZ shall not exceed 400 thickness is the depth of the weld groove.
gram load),
(J) restraint on the weld joint; the restraint shall be maintained on the production test assembly for a minimum of 48 hr after the completed weld has IW M 224 Welding Technique reached ambient temperature; (6) weld sequencing (both fabrication steps and Welding shall be in accordance with the following.
order of bead sequence);
(a) Prior to welding, the area to be welded shall be (7) weld position (see Section IX);
examined by magnetic particle or liquid penetrant (6) water backing and water temperature within methods in accordance with Subsection NE for Class specined tolerances, as applicable; MC or Subsection CC for Class CC.
219
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SECTION XI - DIVI $10N I 190s Edle6es Teme.r.o Attachment w~ ~ X
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J Typiest m6cfchereness troverseloostlen lose deteil (cIl Typical micepheteness Typneet mkrohereness ese dete cl Temportised gY" tr8*ere8 leest4*n Temportieed l8888'88III801 leyer gg
-- =. = - - X A _,
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o Detail (el Detell 16)
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0.010 n. -. -
0.020 in. -.
0.030 in. -. -
- 0.0d0 6n. -. - -
0.060 6n. -.
0.000 in. -. -. -.
Detent tel (Typeeell 0.070in. - -
A tow motet G ENE R Al, NOT ES:
(el tutter lever may eleo be depoolted as sweeve head betwoon buttettseed or tempertsood.
(b) If weeve heed is used, initiel and final eusew passet must be accompented by tempertsmed (c) 11 strerpt technique le weed, ones of str6nger penses must tse accompenned by tempertseed.
(dl in electeode telect6en, preterence should tue geven to electrode types with etwolded v eld strengths s
which do not grootty enseed the minimum tensile strength specited f or the bene motel.
Ate FIG, IWE 42241 TEMPERBEAD TECHNIQUE I
i 220
Seas Edleten REQttlREMENT$ POR CLAtt NC COMPONENT $
IWE 4234 lWE 4227
=:
Issoensil W or W.
Fig. tWE.42J4 il
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/
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Ass FIG !WE4224 2 ILLUSTRATION OF THE TEMPERBEAD TECHNIQUE FOR REINFORCEMENT OF EXISTING FILLET WELDS,
(6) All surfaces to be welded and the sunounding (6) The completed weld and a band 1 in. on either areas shall be clean and free of scale, rust, moisture, or side of the weld shall be examined by the magnetic other surface contamhants, particle method not lens than 48 hr after the com-(c) De minimum preheat temperature speci6ed in pleted repair has reached ambient temperature. The
,the Welding Procedure speciacatbn and the produc-acceptance criteria of Subsection NE for Class MC or i
tion test OWE 4223) shall be maintained during tack Subsection CC for Class CC shall be met, welding and until completion of the weld.
(d) De manimum interpass temperature shall be p.E4226 Repalt Techalques 500'F.
(
(e) Welding shall consist of the application of a (a) Defects contained wholly in the weld metal shall butterbead layer, followed by temperbeads or a tem-be repaired in accordance with NE 4400 for Class MC perbead layer. Butte bead and alternate temperbead or CC4540 for Class CC, eacept as noted in (b) below, placement is shown in Fig. IWE42241, detall (a).
(6) Improper application of the temperbead or Similar application of the temperbead technique for defects in the butterbead or temperbead shall be the reinforcement of Atlet welds is shown in Fig. IWE.
repaired by application of a new butterbead and 4224 2, he technique described in this paragraph temperbend as shown in Fig. lWE 42261.
shall be performed in the production test and actual (c) The repair technique for undercut greater than
- work, k in is shown in Fig. IWE 4226 2.
(f) No postweld beat treatment is required.
l IWE 4227 Half Beed Repair 225 MA As an alternative to IWEd 200, the half bead (a) The completed weld shall be visually eaamined
. welding process shall be used for weld repairs and the (VT 1)in accordance with IWA 2200.
requirements of IWA 4510 shall1 e met.
221
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n IwT.s776, SEC110N XI-DiVillON I 1986 Eaties a
N j
Grooter then the mealmwm Tempoetsmed laps poet f
V////A W///A i'
b
,..... h W1 W///A V////A h temporteed h temperbeed V///Xi W///A S.op 3 Step 3 lol Spesias Tee Lares (b) Spee6ae Tee Small A84 FIG.'IWE-42261 REPA!R TECHNIQUES FOR IMPROPER TEMPER 8EAD SPACING 222
,.-.,m,_,.-.,
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was g4 w.s REQUIREMENTS FOR MC COMPONENTS F13. !HTA242 Undercut.re.ter th.6 1/32 in.esop i///////
N.._,
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Ass FIG. !WE-4226 2 EXAMPLE OF WELO UNDERCUT REPAIR TECHNIQUE 223
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ARTICLE IWE-5000 i
SYSTEM PRESSURE TESTS i
IWE 5200 SYSTEM TEST formed directly prior to the conduct of a scheduled REQUIREMENTS Type A test do not require a separate test."
Att IWE 5210 GENERAL IWE 8222 Deforeal of 14akage Tests l
Encept as noted in IWE 5240, the requirements of IWA $000 are not applicable to Clans MC or Class 1.dakage tests for the following minor repairs or CC components, modincations to the pressure retaining boundary may be deferred until the next scheduled leakage test, provided nondestructive examination is performed in I
accordance with the approved repair program:
(a) welds of attachments to the surface of the i
t% E 8220 TESTS FOLIIeWING REPAIR, pressure retaining boundary; MODIFICAT.ON, OR (b) repair cavities, the depth of which does not REPLACEMENT penetrate the required design wall by more than 10%;
and Aes IWE 5221 14akase Test (c) welds attaching penetrations that are NPS I or Except as noted in IWE 5222, repairs or smaller.
modifications to the pressure retaining boundary or replacement of Class MC or Class CC components shall be subjected to a pneumatic leakage test in IWE 8240- VISUAL EXAMINATION accordance with the provisions of Title 10, Part 50 of the Code of Federal Regulations, Appendix J. Pa%.
ine requirements of IWA.$246 for visual exam-graph IV.A. which states:
inations are applicable.
Any major modi 5 cation, replacement.of a compo.
nent which is part of the primary reactor containment IWE 5280 CORRECTIVE MEASURES boundary, or resealing a seal welded door, performed after the preoperational leakage rate test shall be If the leakage test requirements of IWE 5221 followed by either a Type A, Type B, or Type C test, cannot be satis 6ed, the source of leakage shall be as applicable for the area afected by the modi 6 cation.
located and the area shall be examined to the extent The measured leakage from this test shall be included necessary to establish the requirements for corrective in the report to the Commission, required by V.A. The action. Repairs shall be performed in accordance with acceptance critena of Ill.A.$.(b), Ill.B.3., or Ill.C.3.,
the rules of IWE-4000 and leakage testing shall be as appropriate, shall be met. Minor modi 6 cations, reperformed as required by IWE 5220, prior to replacements, or rescaling of seal welded doors, per-retuming the component to service.
224
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i COMPARATIVE TEXT This is a comparative text showing the changes to Subsection IWE that were made in the 1988 Addenda.
The lef t hand column shows subsection IWE as it-appeared in the 1986 Edition as modified by the 1986 Addenda and the 1987 Addenda. The right hand column shows the changes occurring in-the 1988 Ad-denda. Most of the changes that occurred were the result of consolidation of naterial between subsections.
For example, previously.IWE-4210 was titled l
Thermal Removal Processes, in subsections IWB and IWC, the same-section could be found.Section XI decided to consolidate these sections into IWA. Hence, this consolidation necessitated renumbering of the'lWE sections, j
i e
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i 9
i 3
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ARTICLE IWE 2000 EXAMINATION AND INSPECTION r,uim Adhnh gg
.U de n.h rwstioO INsPEenON Euminatiom shall be verned by an impactee.
Aas yf ed! ah's6 $7[
gt,,
f ee ds.n m e n j +e h A - 2 : 10 1%%2900 EXAMINATION AND I%%2800 EXAMINATION AND Ass PRESSURE TEST PRES $URE TEST REQUIREMENTS REQUIREMEhis The method of examination for the components, (e) The method of esamination for the components, parts, and items (c 8.. asals, gaskets, and bolts) of the pans, and items (e.g., esals, gaskets, and bolts) of the pressure retaining boundaries shall comply with those pressure retaining boundaries shall comply with those tabulated in Table IWE.2$001, ercept where alter
- tabulated in Table IWE.2$001, encept where alter.
nate enemination methods are used that meet the mate sunlution methods are used that meet the eequirements of lWA.2240.
requirementa oflWA 1240.
+
(6) When paint or coatings over welds are to be eemoved, the paint or contings over the welds shall be visually enemined in accordance with Table IWE-2$001 prior to removal.
l s
4
ARTICLE IWEe4000 REPAIR PROCEDURES
% :m w a y ns, IMT 4100 GENERAL IMTAlle SCOPE A6s !%TA100 SCOPE his Article proddes the rules and requirements for the welding and repair of octoponents sovered under nis Article provides rules and requirements in abe acope ofIWE.1100.
addition to these of IWA4000 for repair of compo-
,a ments covered vader the scope ofIWE 1100.
/ n
- 6' f*'
8%TA1 PROCEDURE Defects shall be removed or reduced in eine in accordance with !%TA200. When the envity orested N
by removal of & defect easseds the acceptance w
ariteria of IWA4000 and repair by welding is essen-eary, the repair welds shall be enade in assordance with IWA 4000 and 2 Article, 1%TA200 REMOVAL OF DEFECMi Ass !%TA200 BtJITERBEAD TEMPERBEAD INCLUDING PREPARATIONS REPAIR FOR %*ELDLNG (e) These requirements are for welding when the Defects may be removed or reduced in aise by aise or eonaguration of the repair leads to highly thermal or mechanical removal procenaea, provided restrained weld joints and when factori auch as water the requirements of this ubarticle are antis 6ed.
backing tanke preheat and postweld beat treatmecu peef.f w A - '17 2. O impractical.
naw (H This repair whnique is limited to P No. I Or, IMTA210 THERMAL REMOYAL No. I and P No.1 Or. No. 2 pressure boundary PROCESSES material.
I%YA311 Requiroseets for P.No.1 Materials gyg. C hl m, pre nW *N (e) Prel$ ting, when used, shall be speciAed in the TWE422 C N REQ M N repair prooidure.
(e) D e abielded metal arc welding process
- 1 When earbon air are gouging or plasma arc (SMAW) using low hyorogen slectrodes abau be used.
cutting is usud, any acale on the gouged or cut surface
- ) The following rules shall apply for low bydro-ahall be snee.unically removed in accordance with the gen electrodes used for the repair welding.
following (1) After receipt from the electrode manufacturer
(/) Wher, repair welds are to be made, the and before use, au oovered electrodes shall be baked at requirements of IWE 4230 shall apply, the electrode manufacturer's recosamended baking (2) When repair welds are not required, appoal-temperature, In no ease shall the baking temperature mately S in, of material shan be removed and the be less than 6507 or greater than 3507. ne area shall be faired into the surrounding area.
temperature of the oven shall not exceed 3007 when (c) When osyfuel cutting or other thermal removal the electrodes are inserted for the baking cycle. The processes are uned, material shaU be removed by a temperature shall not be raised more than 3007/hr.
mechanica1 method from therinally pr==amt areas in ne total time above S007, including the holding accordance with the foUoming.
time, shall not onceed 5 br After baking and before (1) When repair welds are to be made, a mini-cooling below 2257, the electrodes shall be trans.
sum of S in. of material shall be removed from the ferred to the holding or drying ovens arsd maintained envity to be repaired. In addition, the requirements of at 2257-3507.
I%7A230 shad apply.
(2) During repair welding, electrodes shall be (2) When repair welds are not required, a mini-maintained in heated ovens or heated portable con-zum of S in, material shad be removed and the area tainers in the repair area until used. The oven l
ahau be faired into the surrounding area.
-~~ temperature shall be maintained between 2257 and (J) De depth of awharucaUy removed material 3507. Electrodes shall be used within 2 hr after shall be determined by actual measurements.
l fr.g g o a O N ** O (f A 4/*s de renovel from the bolding or drying evens or buted portable containers. Electrodes removed from heated ovens for more than 2 kr, but less than 4 hr thall be returned to a bolding even ard held at a temperature between 2257 and H07 for at least g hr before use.
i Electrodes renoved from bested evens or bested
+
portable containers for a period in sacees of 4 hr shall be robaked in nocordames with (bXI) above before use.
Electrodes chall not be rebaked more than once.
(c) Welding materials used in the repair shall be controlled during repair so that they are 6 der,ti6ed as neceptable material natil sonaused.
(d) Welding material contaminated with oil, grease, water, or other foreign material sball act be used.
(t) All welding material shall conform to the material testing requirements of NE 2000 for Class MC or CC.2900 for Class CC. Foe each not of oovered 1
electrodes, weld metal tests shall b made in socor.
l dance with test requirements of NE4431.1 for Class MC or CC 2612.1 for Class CC, and thecoupons shall 1
be tested 6n the as-welded condition. Impact test requirements and acceptance eriteria snell be as required by the Design Speedention for the compo-sent base metal to be repaired.
(f) Controlled poening of welds may be performed to miniml e distortion, provided it is also used on the welds made to qualify the repalt procedure and the production last assembly. paening shall not be used on the initial layer of the weld metal or on the Analleyer.
If poening is used, it shall be canaldered as an essential l
Yp variable in the welding procedure.
.( 7 g.
(g) Fabrication and welding shall be sequenced to w {M #
minimite the efects of restraint.
i' n
t d
IWE4220 htECHANICAL REMOYAL IWE4220 WELDING QUALif1 CAT 10NS f
The welding procedure and weldcrs shall be qual.
(e) When a mechanical removal process is used in 16ed in accordance with Section IX and the additional
,an area where repair welding is not required, the area requirements of Section Ill, oncept as modined or shall be faired into the surrounding area. After Anal supplemented by IWE 4221 through IWE 4223.
grinding, the afected surfaces shall be esamined by the magnetic particle or liquid penetrant method to assure that the defect has been removed.
(b) When repair welds are to be made, the require-enents ofIWE 4230 shall apply.
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