ML17309A716

Forwards Response to 930728 Request for Addl Info Re GL 92-01,Rev 1,including New Mean Chemistry Valves for Unit 1 Lower Longitudinal Welds,Changes to TS Bases Table B 3/4. 4-1 & CE-NPSD-906-P & CE-NPSD-906-NP.CE-NPSD-906-P Withheld

ML17309A716
Person / Time
Site:	Saint Lucie
Issue date:	11/15/1993
From:	SAGER D A FLORIDA POWER & LIGHT CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
Shared Package
ML17228A369	List: ML17228A368 ML17309A716
References
GL-92-01, GL-92-1, L-93-286, NUDOCS 9311300069
Download: ML17309A716 (110)

Text

REGgORYINFORMATION DISTRIBUNSYSTEM(BIDS~)ACCESSION NBR:9311300069 DOC.DATE:93/11/15NOTARIZED:

NODOCKET0FACIL:50-335St.LuciePlantiUnitiiFloridaPoujer&LightCo.0500033550-389St.LuciePlantiUnit2iFloridaPoujer5LightCo.05000389AUTH.NAMEAUTHORAFFILIATION SAGER'.*.FloridaPoeer5LightCo.RECIP.NAMERECIPIENT AFFILIATION DocumentControlBranch(Document ControlDesk)

SUBJECT:

Forwardsresponseto930728requestforaddiinforeIGL92-OIiRevIiincluding newmeanchemistry valvesforUnitIloujerlongitudinal ujelds~changestoTSBasesTableB3/4.D4-15CE-NPSD-906-PZcCE-NPSD-906-NP.

CE-NPSD-906-P eithhe1d.SDISTRIBUTION CODE:A028DCOPIESRECEIVED:

LTRENCLSIZE:TITLE:GenericLetter92-01Responses (ReactorVesselStructural Integritg NOTES:RECIPIENTIDCODE/NAME PD2-2PDCOPIESLTTRENCL11RECIPIENT IDCODE/NAME NORRIS'COPIESLTTRENCL22INTERNAL:

ACRSNRR/DORS/OGCB NRR/DRPWOC/LFDCBEXTERNAL:

NRCPDR01NRR/DE/EMCB NRR/DRPE/PDI-1 NUDOCS-ABSTRACT OGC/HDS3RES/DE/MEB 1+P,NSIC221111011~PNOTETOALLRIDS"RECIPIENTS:

PLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK.ROOMPl-37(EXT.504-2065)

TOELIMINATE YOURNAMEFROMDISTRIBUTION LISTSFORDOCUMENTS YOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:

LTTR21ENCL19 81I' P.O.Box128,Ft.Pierce,FL34954-012$

November15,1993't0CFR2.790fNFORMATJON EXEMPTFROMDlSCLOSURE L-93-28610CFR50.410CFR50.54(f)U.S.NuclearRegulatory Commission Attn:DocumentControlDeskWashington, D.C.20555RE:St.LucieUnits1and2DocketNo.50-335and50-389GenericLetter92-01Revision1ResonsetoReuestforAdditional Information Theadditional information andclarifications requested byNRCletterdatedJuly28,1993,areprovidedinattachments 1and2tothisletter.Attachment 1alsoprovidesnewmeanchemistry valuesforSt.LucieUnit1lowerlongitudinal welds.Attachment 3andenclosures 1through4providesupporting information forthe,response.

Thepreparation oftheresponserequiredreviewofthereactorvesselfabrication recordsbytheoriginalequipment manufacturer (Combustion Engineering) asbackground forpartoftheresponse.

FPLletter(L-93-232) datedSeptember 10,1993,providedthescheduleforresponding tothesubjectRAI.Attachment 3provideschangestotheTechnical Specification BasesTableB3/4.4-1foreachunit.Thechangeswereidentified duringthepreparation ofthisresponseandwerereviewedpursuantto10CFR50.59.Thereviewdetermined thechangeswerenotanunreviewed safetyquestionanddonotrequireachangetotheirrespective Technical Specifications.

Enclosures 1and2areproprietary andnon-proprietary versionsofABBCombustion Engineering letter(F-MECH-93-050) datedSeptember 28,1993.Thisletterprovidestheuppershelfenergy(USE)information onbeltlineweldsfortheSt.LucieUnit1andUnit2reactorvessels.Enclosure 3,CENPSD-906-P, andEnclosure 4,CENPSD-906-NP, areproprietary andnon-proprietary versionsoftheABBCombustion Engineering report"CEOGProgramtoEvaluateChemicalContentofWeldDepositsFabricated UsingHeatsA8746-and 34B009"preparedfortheCombustion Engineering OwnersGroup(CEOG).Thisreportprovidesthebasisforthecopperandnickelcontentofreactorvesselweldsfortwo(2)oftheweldwireheatsusedinthefabrication oftheSt;LucieUnit1reactorvessel.Enclosures 1and3tothisthedisclosure ofwhichPDRADOCK05000335PPDR,anFPLGroupcompanyletter=contain proprietary information, couldcompromise tradesecretsor~/5j 47~J=<-AJSQDJetQPZ~Gr'i-l

>"..>>.HIk~J' commercial information considered byABBCombustion Engineering, Inc.asprivileged andconfidential.

Pursuantto10CFR2.790(a)(4),

FPLrequeststhatproprietary versionsoftheCombustion Engineering letterandreportbewithheldfrompublicdisclosure.

Theaffidavits requiredby10CFR2.790(b)(1)executedbyABBCombustion Engineering supporting thisrequestareincluded.

Pleasecontactusifthereareanyquestions aboutthissubmittal.

Verytrulyyours,D.A.gerVicersidentSt.L'ePlantDAS/GRM/kw DAS/PSL11014-93cc:StewartD.Ebneter,RegionalAdministrator, RegionII,USNRCSeniorResidentInspector, USNRC,St.LuciePlant St.LucieUnits1and2DocketNo.50-335and50-389GenericLetter92%1Revision1FPLLetterL-93-286Attachment AFFIDAVIT PURSUANTTO10CFR2.790Combustion Engineering, Inc.)StateofConnecticut

)CountyofHartford)SS.:I,S.A.Toelle,deposeandsaythatIamtheManager,NuclearLicensing, ofCombustion Engineering, Inc.,dulyauthorized tomakethisaffidavit, andhavereviewedorcausedtohave'eviewed theinformation whichisidentified asproprietary andreferenced in'theparagraph immediately below.Iamsubmitting thisaffidavit.

inconjunction withtheFloridaPowerandLightCompanyandinconformance withtheprovisions of10CFR2.790oftheCommission's regulations forwithholding thisinformation.

Theinformation forwhichproprietary treatment issoughtiscontained inthefollowing document:

ABBLetterF-MECH-93-050

.-/L-MECH-93-015, "UpperShelfEnergyInformation Pertaining totheSt.LucieUnit1andUnit2ReactorVesselWeld,"September 28,1993.Thisdocumenthasbeenappropriately designated asproprietary.

Ihavepersonalknowledge ofthecriteriaandprocedures utilizedbyCombustion Engineering indesignating information asatradesecret,privileged orasconfidential commercial orfinancial information.

Pursuanttotheprovisions ofparagraph

{b){4)ofSection2.790oftheCommission's regulations, thefollowing isfurnished for p12consideration bytheCommission indetermining whethertheinformation soughttobewithheldfrompublicdisclosure, includedintheabovereferenced

document, shouldbewithheld.

1~2.3~4.Theinformation soughttobewithheldfrompublicdisclosure, whichisownedandhasbeenheldinconfidence byCombustion Engineering, isspecificmaterialandmechanical properties pertaining totheweldsinreactorvesselsfabricated byCombustion Engineering.

Theinformation consistsoftestdataorothersimilardataconcerning aprocess,methodorcomponent, theapplication ofwhichresultsinsubstantial competitive advantage toCombustion Engineering.

Theinformation isofatypecustomarily heldinconfidence byCombustion Engineering andnotcustomarily disclosed tothepublic.Combustion Engineering hasarationalbasisfordetermining thetypesofinformation customarily heldinconfidence byitand,inthatconnection, utilizesasystemtodetermine whenandwhethertoholdcertaintypesofinformation inconfidence.

Thedetailsoftheaforementioned systemwereprovidedtotheNuclearRegulatory Commission vialetterDP-537fromF.M.SterntoFrankSchroeder datedDecember2,1974.Thissystemwasappliedindetermining thatthesubjectdocumenthereinisproprietary.

Theinformation isbeingtransmitted totheCommission inconfidence undertheprovisions of10CFR2.790withtheunderstanding thatitistobereceivedinconfidence bythe 0~r Commission.

5.Theinformation, tothebestofmyknowledge andbelief,isnot6.available inpublicsources,andanydisclosure tothirdpartieshasbeenmadepursuanttoregulatory provisions orproprietary agreements whichprovideformaintenance oftheinformation inconfidence.

Publicdisclosure oftheinformation islikelytocausesubstantial harmtothecompetitive positionofCombustion Engineering because:a~b.c~d.Asimilarproductismanufactured andsoldbymajorpressurized waterreactorcompetitors ofCombustion Engineering.

Development ofthisinformation byC-Erequiredhundredsofmanhoursandhundredsofthousands ofdollars.Tothebestofmyknowledge andbelief,acompetitor wouldhavetoundergosimilarexpenseingenerating equivalent information.

Inordertoacquiresuchinformation, acompetitor wouldalsorequireconsiderable timeandinconvenience toascertain thespecificmaterialandmechanical properties pertaining totheweldsinreactorvesselsfabricated byCombustion Engineering.

Theinformation requiredsignificant effortandexpensetoobtainthelicensing approvals necessary forapplication of'Itheinformation.

Avoidance ofthisexpensewoulddecreaseacompetitor's cost~inapplyingtheinformation and marketing theproducttowhichtheinformation isapplicable.

e.Theinformation consistsofspecificmaterialandmechanical properties pertaining totheweldsinreactorvesselsfabricated byCombustion Engineering, theapplication ofwhichprovidesacompetitive economicadvantage.

Theavailability ofsuchinformation tocompetitors wouldenablethemtomodifytheirproducttobettercompetewithCombustion Engineering, takemarketing orotheractionstoimprovetheirproduct's positionorimpairthepositionofCombustion Engineering sproduct,andavoiddeveloping similardataandanalysesinsupportoftheirprocesses, methodsorapparatus.

f.-InpricingCombustion Engineering's productsandservices, significant

research, development, engineering, analytical, manufacturing, licensing, qualityassurance andothercostsandexpensesmustbeincluded.

TheabilityofCombustion Engineering's competitors toutilizesuchinformation withoutsimilarexpenditure ofresources mayenablethemtosellatpricesreflecting significantly lowercosts.g.Useoftheinformation bycompetitors intheinternational marketplace wouldincreasetheirability,to;market nuclearsteamsupplysystemsbyreducingthecostsassociated withtheirtechnology development.

Inaddition, disclosure wouldhaveanadverse"economic

,impactonCombustion fEngineering's potential forobtaining ormaintaining lr',St.LucieUnits1and2DocketNo.50-335and50-389GenericLetter92-01Revision1FPLLetterL-93-286Attachment AFFIDAVIT PURSUANTTO10CFR2.790Combustion Engineering, Inc.)StateofConnecticut

)CountyofHartford)SS.:I,S.A.Toelle,deposeandsaythatIamtheManager,NuclearLicensing, ofCombustion Engineering, Inc.,dulyauthorized tomakethisaffidavit, andhavereviewedorcausedtohavereviewedtheinformation whichisidentified asproprietary andreferenced intheparagraph immediately below.Iamsubmitting thisaffidavit inconjunction withtheFloridaPowerandLightCompanyandinconformance withtheprovisions of10CFR2.790oftheCommission's regulations forwithholding thisinformation.

Theinformation forwhichproprietary treatment issoughtiscontained inthefollowing document:

ABBLetterF-MECH-93-050

/L-MECH-93-015(

"UpperShelfEnergyInformation Pertaining totheSt.LucieUnit1andUnit2ReactorVesselWeld,"September 28,1993.Thisdocumenthasbeenappropriately designated asproprietary.

Ihavepersonalknowledge ofthecriteriaandprocedures utilizedbyCombustion Engineering indesignating information asatradesecret,privileged orasconfidential commercial orfinancial information.

Pursuanttotheprovisions ofparagraph (b)(4)ofSection2.790oftheCommission sregulations, thefollowing isfurnished for 2oftheCommission sregulations, thefollowing isfurnished forconsideration bytheCommission indetermining whethertheinformation soughttobewithheldfrompublicdisclosure, includedintheabovereferenced

document, shouldbewithheld.

Theinformation soughttobewithheldfrompublicdisclosure, whichisownedandhasbeenheldinconfidence byCombustion Engineering, isthereactorpressurevesselweldmaterialspecifications andprocedures.

2~Theinformation consistsoftestdataorothersimilardataconcerning aprocess,methodorcomponent, theapplication ofwhichresultsinsubstantial competitive advantage toCombustion Engineering.

3~Theinformation isofatypecustomarily heldinconfidence byCombustion Engineering andnotcustomarily disclosed tothepublic.Combustion Engineering hasarationalbasisfordetermining thetypesofinformation customarily heldinconfidence byitand,inthatconnection, utilizesasystemtodetermine whenandwhethertoholdcertaintypesofinformation inconfidence.

Thedetailsoftheaforementioned systemwereprovidedtotheNuclearRegulatory Commission vialetterDP-537fromF.M.SterntoFrankSchroeder datedDecember2,1974.Thissystemwasappliedindetermining thatthesubjectdocumenthereinisproprietary.

Theinformation isbeingtransmitted totheCommission inconfidence undertheprovisions of10CFR2.790withtheunderstanding thatitistobereceivedinconfidence bytheCommission.

Theinformation, tothebestofmyknowledge andbelief,isnotavailable inpublicsources,andanydisclosure tothirdpartieshasbeenmadepursuanttoregulatory provisions orproprietary agreements whichprovideformaintenance oftheinformation inconfidence.

Publicdisclosure oftheinformation islikelytocausesubstantial harmtothecompetitive positionofCombustion Engineering because:a.Asimilarproductismanufactured andsoldbymajorpressurized waterreactorcompetitors ofCombustion Engineering.

b.-Development ofthisinformation byC-Erequiredhundredsofc~thousands ofmanhoursandmillionsofdollars.Tothebestofmyknowledge andbelief,acompetitor wouldhavetoundergosimilarexpenseingenerating equivalent information.

Inordertoacquiresuchinformation, acompetitor wouldalsorequireconsiderable timeandinconvenience toascertain thereactorpressurevesselweldmaterialspecifications andprocedures.

Theinformation requiredsignificant effortandexpensetoobtainthelicensing approvals necessary forapplication oftheinformation.

Avoidance ofthisexpensewoulddecreaseacompetitor's costinapplyingtheinformation andmarketing theproducttowhichtheinformation isapplicable.

e.Theinformation consistsofthedetailsconcerning thereactorpressurevesselweldmaterialspecifications andprocedures, theapplication ofwhichprovidesacompetitive economicadvantage.

Theavailability ofsuchinformation tocompetitors wouldenablethemtomodifytheirproducttobettercompetewith.Combustion Engineering, takemarketing orotheractionstoimprovetheirproduct's positionorimpairthepositionofCombustion Engineering's product,andavoiddeveloping similardataandanalysesinsupportoftheirprocesses, methodsorapparatus.

InpricingCombustion Engineering's productsandservices, significant

research, development, engineering, analytical, gimanufacturing, licensing, qualityassurance andothercostsandexpensesmustbeincluded.

TheabilityofCombustion Engineering's competitors toutilizesuchinformation withoutsimilarexpenditure ofresources mayenablethemtosellatpricesreflecting significantly lowercosts.Useoftheinformation bycompetitors intheinternational marketplace wouldincreasetheirabilitytomarketnuclearsteamsupplysystemsbyreducingthecostsassociated with H'

theirtechnology development.

Inaddition, disclosure wouldhaveanadverseeconomicimpactonCombustion Engineering's potential forobtaining ormaintaining foreignlicensees.

Furtherthedeponentsayethnot.s.8.S.A.ToelleManagerNuclearLicensing Sworntobeforemethis~d+dayof199304M~oaryPubc'-Mycommission expires:38(-~

0JIJl'l foreignlicensees.

Furtherthedeponentsayethnot.S.A.ToelleManagerNuclearLicensing Sworntobeforemethis~9dsyof1993Iy'IoaryPublc,""My.commission expires:

Pt/

St.LucieUnits1and2DocketNo.50-335and50-389GenericLetter92-01Revision1ResponsetoRequestforAdditional Information (RAI)ATTACHMENT 1RESPONSEFORST.LUCIEUNIT1OriinalGL92-01uestion2.aCertainaddressees arerequested toprovidethefollowing information regarding AppendixGto10CFRPart50:Addressees ofplantsforwhichtheCharpyuppershelfenergyispredicted tobelessthan50foot-pounds attheendoftheirlicensesusingtheguidanceinParagraph C.1.2orC.2.2inRegulatory Guide1.99,Revision2,arerequested toprovidetotheNRCtheCharpyuppershelfenergypredicted forDecember16,1991,andfortheendoftheircurrentlicenseforthelimitingbeltlineweldandtheplateorforgingandarerequested todescribetheactionstakenpursuanttoParagraphs IV.A.1orV.CofAppendixGto10CFRPart50.uestion2.ainGL92-01RAITheresponseindicates thattheinitialuppershelfenergy(USE)valuesforwelds2-203A,B,Carenotknown.EitherprovidetheCharpyUSEvaluesforeachbeltlineweldwithnodocumented initialUSEvalueorprovidetheCharpyUSEandanalysisfromweldsthatwerefabricated usingthesamevendor,fabrication timeframe,fabrication process,andmaterialspecification todemonstrate thatallbeltlineweldswithnodocumented initialUSEvalueswillmeettheUSErequirements ofAppendixG,10CFR50.Ifthiscannotbeprovided, thensubmitananalysiswhichdemonstrates thatlowervaluesofUSEwillprovidemarginsofsafetyagainstfractureequivalent tothoserequiredbyAppendixGoftheASMECode.Theresponseindicates thattheinitialUSEvalueforthelimitingplate,C-8-2,is103ft-lb.ThestaffbelievesthatthisinitialUSEvalueof103ft-lbisfromlongitudinal Charpyspecimens, mistakenly reportedasfromtransverse Charpyspecimens.

Twosourcessupportthisconclusion:

pages57and58ofreportTR-F-MCM-004labelledthisUSEvalueas"longitudinal,"

andTableB3/4.4-1oftheplant'sTechnical Specification listed78ft-lbasthe"transverse" USEvalueofthisplate.ConfirmthisandupdatetheEOLUSEvalueforthisplate.IftheupdatedEOLUSEisbelow50ft-lbbasedonNRCcriteria, thensubmitananalysiswhichdemonstrates thatlowervaluesofUSEwillprovidemarginsofsafetyagainstfractureequivalent tothoserequiredbyAppendixGoftheASMECode.

PIk~.)N ResonsetoRAIuestion2.aTheresponsetoGL92-01+didnotincludetheuppershelfenergy(USE)valuesfortheStLucieUnit1intermediate shelllongitudinal welds(2-203A,B,C),becausetheseweldswerenotconsidered "limiting" basedontheirrelatively lowestimated copper(Cu)andnickel(Ni)contentandlowRT~~.Theunirradiated CharpyUSEvalueforwelds2-203A,B&Cwasnotobtainedduringfabrication.

Theseweldseamswereallfabricated usingthesameweldwiresA8746and34B009withLinde124fluxnotedinTable1.Combustion Engineering (CE)performed ananalysisofUSEvaluesfor68otherCEfabricated weldsusingMilB-4wireandLinde124flux+.TheaverageUSEvalueofthisdatasetis102.3ft-lbswithastandarddeviation of9.4ft-lbs.Theanalysisconcluded thisaverageUSEvalueof102.3ft-lbs.isapplicable fortheStLucieUnit1welds2-203A,B,C.SincetheresponsetoGL92-01,abetterestimateforCuandNihasbeendeveloped forwelds2-203A,B,C.Theweldprocesswasasinglewireprocesswithouttheuseofadditional Niwire.Twowireheatsandfluxlots(Table1)wereusedindicating achangeduringfabrication toanotherheat/lotcombination.

Ananalysisofthebestestimates ofgenericdataforthetimeperiodforthesetypesofwireswasperformed byCE+.Thisanalysisconcluded thatthebestestimate(meanplusonestandarddeviation)

CuandNivaluefortheA8746welddepositsand34B009welddepositsare0.16%Cuand0.194Curespectively and0.10%Niforbothwelds.Sincetheexactlocationoftheweldwireswitchisnotknown,theconservatively high0.194Cuand0.104Nivaluesareconsidered thebestestimatevaluesfortheintermediate longitudinal welds(2-203A,B,C)andwillbeusedtomakethedecreaseinUSEvalueprojections.

Thenewchemistry valuesdonotsignificantly effecttheembrittlement predictions fortheseweldsastheyaretheleast"limiting" ofalltheSt.LucieUnit1beltlinewelds.TheresponsetoGL92-01reportedthatFPLhasidentified theBeaverValleyUnit1surveillance weldwasfabricated bythesamevendor(CE)usingtheidentical weldwireheatandfluxlotastheSt.LucieUnit1lowerlongitudinal welds(3-203A,B,C).TheBeaverValleysurveillance weldchemicalanalysisandtheCEqualification chemicalanalysisaretheonlytwoknownsourcesofwelddepositdataforthisweldwireandfluxlotaccording totheEPRIRMATCHdatabase.AmeanvalueofCu,Ni,P,andSareprovidedinTable1asthenewchemistry valuesforthisweld.Thechemistry andCharpyUSEvaluesforallthebeltlineplatesareshowninTable2.Onlythe"limiting" surveillance platewasreportedintheresponsetoGL92-01<'>.

UsingtheCuandUSEvaluesfromTable1andtheSt.LucieUnit1conservative maximumendoflicense(EOL)1/4Tvesselfluence(actualazimuthal fluenceislessattheselongitudinal weldlocations)

,thewelds2-203A,B,Cwillnotfallbelowthe10CFR50AppendixG,50ft.-lb.,limitwithinthelicenselife.

I ThenewmeanCuvalueof0.28wt4,doesnoteffectthepreviousEOLUSEprojection forthelimiting3-203A,B,Cweldsbecausetheprojection lineforthenewCuvalueisattheupperlimitonR.G.1.99Rev.2,Figure2.Theprojected EOLUSEdoesnotfallbelowthe10CFR50AppendixG,50ft.-lb.,limitwithinthelicenselife.Thesamecalculation wasperformed fortwobeltlineplatesthathavethehighestCuvalueandlowestUSEvaluesfromTable2.Usingthesevaluesandthemaximum1/4Tvesselfluence,thebeltlineplateswillnotfallbelowthe10CFR50AppendixG,50ft.-lb.,limitwithinthelicenselife.Belowaretheendoflife(EOL)USEprojections forStLucieUnit1reactorvesselbeltlinewelds2-203A,B,C;3-203A,B,C;andthelowestpredicted USEbeltlineplates.MaterialInitialUSEft-lb(Transverse)

'%uEOL1/4TFluence(n/cm)RegGuide1.99Rev2%Reduction EOLUSEft-lbIntermediate shelllongwelds(2-203AiB,C)Lowershelllongwelds(3-203AgB,C)Intermediate shellplatec-7-3LowershellplateC-8-1102.3112()7681.90.19()0.280.110.152.01x10191.27x102.01x10~92.01x10193944%23%28%62.462.758.559.7TheresponsetoGL92-01Rev.1indicated thattheunirradiated USEforthelimitingSt.LucieUnit1beltlineplate,C-8-2,is103ft.-lb.takeninthetransverse direction.

Thedatawasobtainedfromthebaselinesurveillance programlimitingplate.Thespecimens wereorientedtoprovidetransverse data.Thisvalueisalsoreportedonpages61and80ofTR-F-MCM-004().

Pages57and58ofthesamereportthattheRequestforAdditional Information refersto,isforirradiated data.Sincethe103ft.-lb.valuereportedintheGL92-01responseiscorrect,noupdatedprojection ofendoflicenseUSEisnecessary.

AchangetotheFSARwillbemadetoreflectthisnewdata.Attachment 3isthechangetotheTechnical Specification Basespage.

TABLE1ST.LUCIEUNIT1REACTORVESSELBELTLINEWELDMATERIALWELDLOCATIONIntermediate ShellLongSeam(2-203A,B,C)LowerShellLongSeam3-203A,B,CIntermediate toLowerShellGirthSeam(9-203)HEATNo.A8746/34B00930542490136FLUXTYPELinde124Linde1092Linde0091FLUXLOT3878/368838893999%Cu019c0.28~0.23bNi0.10c0.630.11b0.018()0.01640013b0.017()0.00840.012bDROPWEIGHTTEST('F-)NA-60(>>-60bRTNDT(F)-S6'60(>>-60bCHARPYUSE(FT-LBS)102.3(2)112()144bNA-NotAvailable a-GenericdataforCEsubmerged arcweldsusingLinde0091,1092and124Fluxper10CFR50.6b-Surveillance ProgramData+c-Bestestimated CuandNicontent(lownickeltypewire)@d-MeanvalueofwelddepositdatafromCEqualification<@

andtheBeaverValleySurveillance Weld@.

TABLE2ST.LUCIEUNIT1REACTORVESSELBELTLINEPLATEMATERIALPLATELOCATION'tCu%NiDROPWEIGHTTEST(0F.)NDT('F-)MINIMUMLONGITUDINAL CHARPYUSE(FT-LBS)TRANSVERSE CHARPYUSE()(FT-LBS)Intermediate ShellHeatNo.A4567-1CodeNo.C-7-1Intermediate ShellHeatNo.B9427-1CodeNo.C-7-2Intermediate ShellHeatNo.A4567-2CodeNo.C-7-3LowerShellHeatNo.C5935-1CodeNo.C-8-1LowerShellHeatNo.C5935-2CodeNo.C-8-2LowerShellHeatNo.C5935-3CodeNo.C-8-30.110.640.0040.110.640.0040.110.580.0040.150.560.0060.150.570.0060.120.580.0040.0130.0100.0120.0100.0100.010-30-30-1010b-10+10+20+20126126124126139b13581.981.980.681.9103b87.8Note:DataobtainedfromTables5.2-4Aand5.2-6fromtheStLucieUnit1FSAR()unlessnoted.a)Calculated valueusing65%oflongitudinal specimendataperMTEBPosition5.2Paragraph 1.2b)Surveillance ProgramData()(averageUSEData)

)8 REFERENCE LIST(1)FPLLetter,L-92-189, St.LucieUnits1and2DocketNo.50-335and50-389,GenericLetter92-01,Revision1,Response, PTLimitsandLTOPAnalysis, W.H.BohlketoNRC,July7,1992(2)"UpperShelfEnergyInformation Pertaining totheSt.LucieUnit1andUnit2ReactorVesselWelds",ABB-Combustion Engineering, F-MECH-93-050/L-MECH-93-015, September 28,1993(3)"CEOG,"ProgramtoEvaluateChemicalContentofWeldDepositsFabricated UsingHeatsA8746and34B009",Combustion Engineering OwnersGroup,February1993,CENPSD-906-P andCENPSD-906-NP (4)"FloridaPower&LightCo.St.LucieUnit1PostIrradiation Evaluation ofReactorVesselSurveillance CapsuleW-97",Combustion Engineering, Inc.,December1983,TR-F-MCM-004 (5)"Evaluation ofPressurized ThermalShockEffectsDuetoSmallBreakLOCA'swithLossofFeedwater fortheCombustion Engineering NSSS",Combustion Engineering OwnersGroup,December1981,CEN-189andCEN-189AppendixF(6)FPLLetter,L-77-308, St.LucieUnit1ReactorVesselMaterialInformation, R.E.UhrigtoD.K.Davis,NRC,September 30,1977(7)"FloridaPower&LightCo.St.LucieUnit1Evaluation ofBaseLineSpecimens",

Combustion Engineering, Inc.,October1984,TR-F-MCM-005 (8)"FloridaPower&LightCo.,St.LucieUnit1UpdatedFinalSafetyAnalysisReport",Amendment 11,Chapter5.0(9)"Analysis ofCapsuleWfromDuquesneLightCo.BeaverValleyUnit1ReactorVesselRadiation Surveillance Program",

Westinghouse ElectricCorp.,November1988,WCAP-12005 St.LucieUnits1and2DocketNo.50-335and50-389GenericLetter92-01Revision1ResponsetoRequestforAdditional Information (RAI)ATTACHMENT 2RESPONSEFORST.LUCIEUNIT2OriinalGL92-01uestion2.aCertainaddressees arerequested toprovidethefollowing information regarding AppendixGto10CFRPart50:Addressees ofplantsforwhichtheCharpyuppershelfenergyispredicted tobelessthan50foot-pounds attheendoftheirlicensesusingtheguidanceinParagraph C.1.2orC.2.2inRegulatory Guide1.99,Revision2,arerequested toprovidetotheNRCtheCharpyuppershelfenergypredicted forDecember16,1991,andfortheendoftheircurrentlicenseforthelimitingbeltlineweldandtheplateorforgingandarerequested todescribetheactionstakenpursuanttoParagraphs IV.A.1orV.CofAppendixGto10CFRPart50.uestion2.ainGL92-01RAITheresponseindicates thattheinitialUSEvaluesforallbeltlinewelds,exceptforthesurveillance weld,arenotknown.EitherprovidetheCharpyUSEvaluesforeachbeltlineweldwithnodocumented initialUSEvalueorprovidetheCharpyUSEandanalysisfromweldsthatwerefabricated usingthesamevendor,fabrication timeframe,fabrication process,andmaterialspecification todemonstrate thatallbeltlineweldswithnodocumented initialUSEvalueswillmeettheUSErequirements ofAppendixG,10CFR50.Ifthiscannotbeprovided, thensubmitananalysiswhichdemonstrates thatlowervaluesofUSEwillprovidemarginsofsafetyagainstfractureequivalent tothoserequiredbyAppendixGoftheASMECode.Theresponseindicates thattheinitialUSEvalueforthelimitingplate,M-605-1,is105ft-lb.ThestaffbelievesthatthisinitialUSEvalueof105ft-lbisfromlongitudinal Charpyspecimens, mistakenly reportedasfromtransverse Charpyspecimens.

Theplant'sTechnical Specifications supportthisconclusion, whereallUSEvaluesinTableB3/4.4-1werelabelledas"longitudinal,"

andtheleastUSEvaluerecordedtherewas91ft-lbforplateM-4116-1.

The"transverse" USEvalueforplateM-4116-1, afterapplyingafactorof0.65,is59.2ft-lb.ConfirmthisandupdatetheEOLUSEvalueforthisnewlimitingplate.IftheupdatedEOLUSEisbelow50ft-lbbasedonNRCcriteria, thensubmitananalysiswhichdemonstrates thatlowervaluesofUSEwillprovidemarginsofsafetyagainstfractureequivalent tothoserequiredbyAppendixGoftheASMECode.

ICM ResonsetoRAIuestion2.a.TheinitialresponsetoGenericLetter92-01+indicated thatalltheStLucieUnit2uppershelfenergy(USE)valuesforthebeltlineweldsandplateswereknownandreportedintheStLucieUnit2FSAR").Table1isasummaryofallthebeltlinewelddatafromtheTables5.2-6and5.2-7aoftheFSAR.Theintermediate tolowershellgirthseam(101-171) isthemostlimitingweldforpredictions ofUSEatendoflicense(EOL).Table2isasummaryofallthebeltlineplatedatafromtheTables5.2-5and5.2-7oftheFSAR.The"limiting" beltlineplatewithrespectstoshiftinRTND~istheM-605-1plateandiscontained intheSt.LucieUnit2ReactorVesselSurveillance Program.ThemostlimitingbeltlineplatefromanUSEprospective wouldbethelowershellplateM-4116-1with91ft-lbsUSEinthetransverse orientation.

UsingthedatafromTables1and2,themaximumvesselfluenceandtheRegulatory Guide1.99,Revision2prediction forCharpyUSE,allthebeltlineweldsandthemostlimitingbeltlineplate(USEperspective) donotfallbelow50ft.-lbsUSEatorbeforetheendofthecurrentoperating license.Belowisatableshowingthepredicted endoflicenseUSEatthe1/4Tlocationforthebeltlineweldsandthelimiting(USE)beltlineplaterequested intheRAI.MaterialPlateM4116-1Inter.ShellLongSeams(101-124A, B,C())LowerShellLongSeams(101142AgBgC)Intermediate toLowerShellGirthWeld(101-171)

InitialUSEft-lb(Transverse) 9111613696(')%Cu0.060.040.050.07EOL1/4TFluence(n/cm)1.83x10191.83x10~91.83x10~91.83x10~9RegGuide1.99Rev2%reduction 222222'tEOLUSEft-lb719010675LowestUSEvalueofthetwoweldwiresusedtofabrictethisseam.TheUSEvaluesreportedfortheStLucieUnit2beltlineplatematerials aretransverse Charpyvalues.Section5.3.1.5oftheFSAR+indicates thatthebeltlinematerialwastestedintheweak(transverse) direction andreportsthatthelowestplateUSEvalueis91ft-lbs.Asearchofthereactorvesselfabrication datapackageverifiedthatthevaluesreportedintheFSARandTechnical Specification Basesaretransverse data.AcopyoftheCMTRfortheplateinquestionisshowninFigure1withtheheatcodeandtestdirection noted.AchangetotheFSARwillbemadetoreflectthedataastransverse.

Attachment 3isthechangetotheTechnical Specification Basespages.

TABLE1ST.LUCIEUNIT2REACTORVESSELBELTLINEWELDMATERIALWELDLOCATIONHEATNOFLUXTYPEFLUXLOT%Cu%Ni%PDROPWEIGHTTEST(oF)RTyD~CHARPYUSE(FT-LBS)Inter.ShellLongSeam(101-124A)Inter.ShellLongSeam101-124BInter.ShellLongSeam(101-124C)LowerShellLongSeam(101-142A)

LowerShellLongSeam(101-142B)

LowerShellLongSeam101-142CIntermediate toLowerShellGirthSeam(101-171) 836428364283642/08363783637836378363783637/3P7317Linde0091Linde0091Linde0091Linde0091Linde0091Linde0091Linde124353635363536/112211221122112209510.040.030.040.040.050.040.070.060.0090.060.0110.070.0090.100.0080.090.0080.090.0080.080.0090.0100.0140.0110.0090.0090.0080.011-80-80-80/-50-50-50-50-70/-80-80-80-80/-50-50-50-50-70/-80116116116/136136136136115/96Note:DataobtainedfromTable5.2-6and5.2-7afromtheStLucieUnit2FSAR+.

TABLE2ST.LUCIEUNIT2REACTORVESSELBELTLINEPLATEMATERIALLOCATION(CODEf)HEATNO%Cu%NiDROPWEIGHTTEST('F.)NDT('F.)TRANSVERSE CHARPYUSE(FT-LBS)Intermediate Shell(M405-I)Intermediate Shell(M%05-2)Intermediate Shell(M405-3)LowerShellPlate(M4116-I)

LowerShellPlate(M4116-2)

LowerShellPlate(M4116-3)

A-8490-2B-3416-2A-8490-2B-8307-2A-3131-1A-3131-20.110.130.110.060.070.070.610.620.610.570.600.600.0080.0080.0090.0070.0070.0080.0120.0140.0170.0100.0090.008-10-20-30-50-40+30+10+20+20+2010511311391105Note:DataobtainedfromTable5.2-5and5.2-7fromtheStLucieUnit2FSAR@.

fl"'

JI,ll,Moss55AIClithtSIfCIIICAIIluVCIII)08IICATIIO.IAATCI,'IALOCSCI;!rTlt)IIAlh)l:Il)h).5 O,l'III'll:h Jll)IIilli'0)J)Itl:VISIJO)J

))I:2-10-75'-P3I'lg0!)EOIITRACT ll(A7II72S.ukl!nn~!'trr.lC:n.IOIIRO.72OIM2-OIII ll0307-7COOCNO,M-4))G-)220-3/I"X99-9/1G"X9-11/1G>>l.owerShellLIILI.CIII'I!II:AI.

AIIAI.YGIG 75Cil)LICCIIAIIIChI.1I.ST5JTrf.~Jt<<23A430002!22EE-TA.505IC5TItc.CAUOCTC5TTCUI'LRATIISIC ofA.T.TICLOSTRCIA~>>TIIA KSI67UL'IluhICTfIIS(LLT$1RCIIG'III, KSI76CLOIIOIII0'ŽA260RCOUCIIN!OfARCAni66EE-TB.50568.388.42G.O-~61.5IMPA5T*HOOMTRACTURP'tESTS'ITfC'TfLtts.OfVALltCS1tu~.~FVAUKSCharpyimpacts-40-40-40+30+30+30+60+60+60+70+70+70+80800100100261036lb381553254820452045205325603062>3060+306330MlittTII:Mo44518222539333230384241'5~-40-30-20+100+100+100+160+160+160626968939491404040100~100100~DTOWlllithtt1F1F.~2NF425053686863-30'FAOOITIOIIAL OAT*RICLUOIIIO IIKATTRCAT!2CIITI i(-(a)1600'Fa25'F4hours.Waterquenched.

(b)122Fa25'F4hours.(c)1150'Fk50'F40hourJurnaco~co)cd toG00'F.ThcImpactswerctakentransverse tothemaiorrollingdlrcctlon oJtheplateatthe1/42Tlcvclandnotchedpcrpcndlcular tothcplatesurface.Thedropwclght andtcnsllcsvicrctakentransverse tothomaJorrollingdlrcctlon.

TestingwnsdoneInaccordance vf1thMf,PSpcclllcatlon N-5.5.2.11 (b).Add.1(a).Fott<<CII50I:c:P~Webbll.Dlnwlddle T.U.lvlarston S.A.LcvflIt.C.Jara!!tf.,

Jr,LoLRTOLORttttlftLottl>>Iottlot<<0 Jotolt~ttwOOOOol!LOAt~IAO<<ltl>>(OS Lftl>>IMOJWI<<SPOIIASOJOT~SP~ttltlth!IIO>>I~tttOot122>>>>l!<<tl>>CO<<AOSttO>>

llotOIIIRSttOI LOtOTOOOMO.

COUOUST!fAI rlmRLCRRIO,lttc.OTAfnoIIIIth~ganuarst31~1975Figure1:StLucieUnit2BeltlinePlateM4116-1Certified MaterialTestReport(CMTR)

REFERENCE LIST(1)FPLLetter,L-92-189, "St.LucieUnits1and2DocketNo.50-335and50-389,GenericLetter92-01,Revision1,Response, PTLimitsandLTOPAnalysis",

W.H.BohlketoNRC,July7,1992(2)"FloridaPower&LightCo.,St.LuciePlantUnit2,UpdatedFinalSafetyAnalysisReport",Amendment 8,Chapter5.0(3)"Analysis ofCapsuleW-83,FloridaPower&LightCo.,St.LuciePlantUnit2",Babcock&Wilcox,September 1985,BAW-1880 St.LucieUnits1and2DocketNo.50-335and50-389GenericLetter92-01Revision1ResponsetoRequestforAdditional Information (RAgATTACHEMENT 3TECHNICAL SPECIFICATION BASESCHANGESUNIT1PAGEB3/44-9UNIT1PAGE3/44-10UNIT2PAGE3/44-9 St+ucieUnits1and2DocketNo.50-335and50-389'enericLetter92%1Revision1FPLLetterL-93-286Attachment AFFIDAVIT PURSUANTTO10CFR2.790Combustion Engineering, Inc.)StateofConnecticut

)CountyofHartford)SS.:I,S.A.Toelle,deposeandsaythatIamtheManager,NuclearLicensing, ofCombustion Engineering, Inc.,dulyauthorized tomakethisaffidavit, andhavereviewedorcausedtohavereviewedtheinformation whichisidentified asproprietary andreferenced intheparagraph immediately below.Iamsubmitting thisaffidavit inconjunction withtheapplication ofFloridaPower&LightCompanyinconformance withtheprovisions of10CFR2.790oftheCommission's regulations forwithholding thisinformation.

Theinformation forwhichproprietary treatment issoughtiscontained inthefollowing document:

CENPSD-906-P, "GEOGProgramtoEvaluateChemicalContentofWeldDepositsFabricated UsingHeatsA8746and34B009,"February1993.Thisdocumenthasbeenappropriately designated asproprietary.

Ihavepersonalknowledge ofthecriteriaandprocedures utilizedbyCombustion Engineering indesignating information asatradesecret,privileged orasconfidential commercial offinancial information.

Pursuanttotheprovisions ofparagraph (b)(4)ofSection2.790

&f,t4Ls~J'"~II PROPRIETARY INFORMATION ThisDocumentcontainsproprietary information andisnottobetransmitted orreproduced withoutspecificwrittenapprovalfromCombustion Engineering, Inc.CopyNo.6SCENPSD-906-P OMBUSTtON ENGINEERING OWNERSGROUPCEOGPROGRAMTOEVALUATECHEMICALCOXIKNTOFWELDDEPOSITSFABRICATED USINGHEATSAS746AZ'6)34B009CEOGTASK747'f0CFR2.790fNFORMATlON EXEMPTFROMDISCLOSuRE PreparedfortheC-EOWNERSGROUPFebruary1993ABBCombustion Enaineering NuclearPowerP..9311300069 8D,QD(IDliQQDQDASEABROWNBOVERI IIiwary.)'IIPI Combustion Engineering, Inc.Proprietary Information TABLEOFCONTENTSSectionNo.Title~PaeIntroduction

Background

ScopeIVVVIResultsConclusions References 10 IQ/iiI4III Combustion Engineering, Inc.Proprietary Information LISTOFTABLESNumberTitle~Pae'NickelContentforCoiledWireElectrode WeldDepositsWeldSeamsandConsumables Using[Adcom]Heat¹A8746CopperAnalysisResultsforWeldWireHeat¹A8746WeldDepositCopperContentfor[Adcom]WireHeats1213WeldSeamsandConsumables Using[ReidAvery]Heat¹34B00915'opperContentAnalysisResultsforWeldWireHeat¹34B009WeldDepositNickelContentwithColdNickelFeedNickelContentforHeat¹34B009withColdNickelFeedandLinde1092Flux161718BestEstimateCopperandNickelContentforVesselWelds19 I~4=f"IIIv~4CP,I Combustion Engineering, Inc.Proprietary Information I.INTRODUCTION Thisreportpresentstheresultsofataskundertaken fortheCombustion Engineering OwnersGroup(CEOG)toprovidethebasisforthecopperandnickelcontentofreactorpressurevesselweldsmadeusingtwospecificheatsofweldwire.Theseheatsarecommontobeltlineweldsinseveralreactorvesselsfabricated byABB/CEinChattanooga, Tennessee.

Theas<eposited weldswerenotalwaysanalyzedexplicitly forcopperornickelduringfabrication becausethesignificance ofthosechemicalelementstoirradiation embrittlement wasnotthenrecognized.

Subsequent effortsto.estimate theas-deposited weldchemistry fromlimiteddatasometimes haveresultedindifferent valuesforthesameweldconsumables.

Thepurposeofthisevaluation istoutilizeabroadsetofchemicalanalysisresultsinconjunction withinformation frommaterialspecifications toestablish aconsistent andviablebasisfortheas-deposited weldchemicalcontentforfourspecificreactorpressurevesselsinvolving twoheatsofweldwire.II.BACKGROUND Submittals weremadeinDecember1991totheNuclearRegulatory Commission (NRC)inresponseto10CFR50.61,"Fracture Toughness Requirements forProtection AgainstPressurized ThermalShock(PTS)Events"(FederalRegister, v.5694,page22304,May15,1991).TheNRCexpressed concernregarding theconsistency andcredibility ofdatausedasthebasisforPTSsubmittals, especially withrespecttochemicalcontent.Twoormorelicensees havereporteddifferent copperornickelcontentsforreactorvesselweldsforwhichanidentical heatofweldwirewasused.Thesedifferences aroseinpartbecauseofthewaymultipleanalyseswerehandled,thetypeofestimation methodsusedbylicensees, orthedegreetowhichdatatraceability wasestablished.

IIIIII Combustion Engineering, Inc.Proprietary Information ThePTSsubmittal ofoneCEOGlicenseewasquestioned bytheNRCregarding thecopperandnickelcontentofavesselbeltlineweldformedusingweldwireheatnumberA8746.ThissameweldwireheatwasalsousedfortwootherCEOGlicensees'essel beltlinewelds.Thesamecoppercontent(asinglemeasurement, notanaverage)wasreportedbyallthreelicensees, butdifferent nickelcontentswerereported.

Aninitialresponsetothequestionwaspreparedbasedonareviewoffabrication records,procedures andspecifications asdescribed intheresultssection.Thisreportbuildsuponthatinitialreviewusingchemicalanalysisdatarepresentative ofweldwirespecifications andweldprocedures employedbyABB/CE.NRCguidancefordetermination ofcopperandnickelcontentiscontained in10CFR50.61,"Fracture Toughness Requirements forProtection AgainstPressurized ThermalShockEvents".Fouralternatives areavailable toobtainbestmtimate copperandnickelvaluesfortheplateorforging,orforweldsamplesmadewiththeweldwireheatnumberthatmatchesthecriticalvesselweldasfollows:(1)(2)(3)(4)Themeanofthemeasuredvalues,or,ifthesevaluesarenotavailable, theupperlimitingvaluesinthematerialspecifications towhichthevesselwasbuilt,orifnotavailable, conservative estimates (meanplusonestandarddeviation) basedongenericdatafromreactorvesselsfabricated inthesametimeperiodtothesamematerialspecifications, ifjustification isprovided.

Ifnoneofthefirst3alternatives areavailable, 0.35%copperand1.0%nickelmustbeassumed.Thepreceding guidancewasemployedinthisevaluation.

I,lII+c~I~lII Combustion Engineering, Inc.Proprietary Information III~SCOPETheobjective ofthisevaluation istoprovidebestestimatevaluesofcopperandnickelcontentforwelddepositsproducedusingthefollowing materials:

2.3.[AdcomHiMnMo]weldwireheatA8746andLinde124fiux[ReidAveryHiMnMo]weldwireheat34B009andLinde124or1092flux[ReidAveryHiMnMo]weldwireheat34B009withNi-200coldwirefeedandLinde1092fluxThepreceding materials wereusedtofabricate reactorvesselbeltlineweldsinCalvertCliffsUnit2,St.LucieUnit1,Millstone Unit"1,andMillstone Unit2.The.guidelines contained in10CFR50.61arefollowedtoprovidethosebestestimates.

TheapproachtakenistoreviewABB/CEweldingprocedures andspecifications, tocollectchemicalanalysisresultsspecifictothethreeweldmaterials noted,andtocollectchemicalanalysisresultsforcomparable andcontrasting weldmaterials.

Thisinformation isthenevaluated todetermine thebestestimatevaluefor:2.3.thenickelcontentof[HIMnMo]wirewelddeposits, specifically heats¹A8746and34B009,thecoppercontentof[Adcom]wirewelddeposits, specifically heat¹A8746thecoppercontentof[ReidAvery]heat¹34B009.weld

deposits, andthenickelcontentof[ReidAvery]heat¹34B009plusNi-200coldwirefeedwelddeposits.

Inthisevaluation, chemicalanalysisresultswereobtainedfromwelddepositsfabricated usingLinde0091,1092,124and80fluxes.Thetoughness properties ofweldsmadeusingLinde0091,1092and124fluxeshavebeenpreviously showntobe sh~Ka.1I8~r~LI1m'tC+~r~.wlII Combustion Engineering, Inc.Proprietary Information comparable'".

[Fluxtypeisknowntoaffectcertainchemicalelements, butnickelandcoppercontentsinthewelddeposithavenotbeenfoundtobesubstantially affectedbyfiux'ypeforLinde0091,1092and124foragivenheatofweldwire"'.]Thereisinsufficient information fromABB/CEfabrication recordstodrawsimilarconclusions regarding Linde80fluxwelds.Therefore, copperandnickelanalysisresultsfromLinde80fluxweldswillbeconsidered forinformation only.IV.RESULTS1.WeldingProcedures andSpecifications ABB/CEfabricated manyreactorpressurevesselsusingautomatic submerged

.arcwelding.[TypeMil-B4electrode wirespecifications (seeMIL-E-18193A, MilitarySpecification, "Electrodes, Welding,CarbonSteelandAlloySteel,Base,Coiled,"July23,1957)wereusedasthebasisforABB/CEprocurement ofthefillerwire.Inthisreport,theterminology "wiretype"isusedtorepresent thebroadclassification ofweldfillermaterial:

Mil-B4ofMil-B4Modified(Mil-B4Mod).Theterminology "specification" isusedtorepresent Ithespecificclassification ofweldfillermaterial:

HIMnM,MnMoNi,MnMo,orLowCu-P.Theterminology "supplier designation" isusedtorepresent thespecificcompositional classification ofwireprovidedbythesuppliertomeettheCEspecification:

HiMnMo,MnMoNiorLowCu-P.ABB/CEpurchasespecifications inplacebetween1965and1971calledforseveralgroupsofcoiledelectrodes differentiated bythemanganese (Mn),molybdenum (Mo)andnickel(Ni)content:k~WireTeMil-B4ModMil-B4ModMil-B4Mil-B4ModMil-B4ABB/CES~HiMnMoMnMoNiMnMoMnMoNiLowCu-PSpecified NickelContent0.90to1.10%0.65to0.85%Supplier~DesinationHiMnMoMnMoNiHiMnMoMnMoNiLowCu-P-4 LIIIIlI Combustion Engineering, Inc.Proprietary Information Only'nthecaseofthewiredesignation MnMoNiwasanynickelrequired(specified byCE)tobeincludedinthewire.NotealsothatMil-B4Modifiedwasoriginally specified byCEaseitherHiMnMoorMnMoNi.Insubsequent specifications, Mil-B4ModifiedreferredonlytoMnMoNiwireswithnominally 0.75%or1.00%nickel,andMil-B4referredonlytoHiMnMo,MnMo,orLowCu-Pwireswhichallhadnonickelspecified.

Thesuppliers ofcoiledwireelectrodes typically usedthedesignations asindicated aboveontheircertiftcations.

Suppliercertifications andweldmaterialreleasereports(generated byABB/CEuponreceiptofthewire)includednickelcontentonlyfortheMnMoNiwires,i.e.,thenickelwasdetermined onlywhereitwasspecified.

Weldmaterialcertification tests(welddeposits) andactualvesselwelddepositanalysesgenerally includedananalysisfornickelonlywhenMnMoNiwireswereutilizedorwhenthevesselequipment specification calledforanickelanalysis, Nickelwasnotintentionally addedtoaheatbecauseoftheextraexpensetothewiresupplier.

Therefore, thenickelcontentforaHiMnMooraMnMowireisexpectedtobelow(significantly lessthan0.75%).]2.ObservedNickelContentof[HiMnMoandMnMoNi]CoiledWireElectrode WeldDeposits[Thenickelcontentofweldsdeposited usingHiMnMoheats"¹A8746and¹34B009isnotavailable fromABB/CEwelddepositanalysisrecords.However,nickelcontentwasdetermined forotherHiMnMoheatsandformanyMnMoNiheats.[Note:weldsfabricated usingaNi-200coldwireadditionarenotincludedinthediscussion whichfollows.]

Asearchwas"performed ofABB/CEweldreceiptandwelddepositanalysisrecordsfortheyears1965to1971,andalistwascompiledofeachanalysisthatincludednickelcontent.Foreachanalysiswithareportedvalueofnickel,thesupplier I(I*.Pi~tigi'Y,pI Combustion Engineering, Inc.Proprietary Information designation andwiresupplierisnotedasshowninTableI;multipleanalysesonasingleheataregroupedtogether.

Themeanandstandarddeviations described belowarebasedontheaveragenickelforeachheat,whereastherangesreflectallreportednickelvalueswithineachsetofwires.TheMnMoNiwiresfallwithintworangesofnickel,0.59to0.82%Niand0.89to1.10%Ni.Thecorresponding meanandstandarddeviation are:mean=0.706%Ni,o'0.051%Nimean=0.990%Ni,u=0.069%NiThesecorrespond welltothetwospecification levelsof0.75%and1.00%Nidiscussed intheprevioussection.FortheHiMnMowires,nickelcontentisintherangeof0.01to0.16%.Themeannickelvalueforthe16heatsis0.058%withastandarddeviation of0.037%Ni,ItisclearfromtheHIMnModatathatnickelwasnotintentionally addedtotheoriginalheatsfromwhichtheelectrode wiresweredrawn.Therefore, fortheHiMnMoheats¹A8746and¹348009,aconservative bestestimate(meanplusonestandarddeviation) ofthenickelinthewelddepositis0.10%Ni.]3.CopperContentofWeldDepositsUsingWireHeat¹A8746[Weldwireheat¹A8746,aHiMnMocoiledelectrode suppliedbyAdcom,wasusedtofabricate theweldseamsdescribed inTable2.Ineachcase,thesubmerged arcweldingwasperformed usingLinde124flux.Twoseparatewelddepositchemicalanalyseswereperformed whichinvolvedheat¹A8746asdescribed inTable3.OnlyoneoftheanalysesrelatesdirectlytothefourwelddepositslistedinTable2.Eachofthevesselweldswere III~

Combustion Engineering, Inc.Proprietary Information deposited usingLinde124flux,whereasonlyoneofthechemicalanalysesreflected aLinde124fluxweld.Therefore, theLinde80welddepositanalysiscanonlybeusedforinformation.

TheLinde124fluxwelddepositanalysisresultedinacoppercontentof0,12%usingAdcomweldwireheatA8746.Inordertojudgetheviability ofthe0.12%coppervalue,acompilation wasmadeofwelddepositcoppercontentsofotherAdcomheatswhichisgiveninTable4.Treatingeachcopperanalysisasindependent (i.e.,assumingthateachreflectsresultsfromauniquecoil),themeancoppercontentis0.20%,thestandarddeviation is0.036%,andtherangeis0.12to0.27%.Thedataincludesevendifferent heatsorcombinations ofheats,fourdifferent typesofflux,twodifferent wirespecifications, anda29monthtimeperiodoverwhichwirewasprocuredandanalyseswereperformed.

Therefore, the0.036%standarddeviation forcopperreflectsheat-to-heat andcoil-to-coil variations aswellastheinfluence tofweldfluxandthetimedependence ofthecoppercoatingprocessonwelddepositcoppercontent.Inotherwords,sincethestandarddeviation represents manyAdcomwireheatsandotherfactors,the0.036%copper(onestandarddeviation) shouldconservatively represent thecoppervariability ofweldsdeposited usingasingleheatofAdcomwire,heatPA&746.Comparison ofthedatafromTable3andTable4indicates thattherangeofavailable measurements specifictoheatPA8746,0.12to0.17%copper,iswithintherangeofthesevendifferent Adcomsuppliedheatsandcombinations ofheats.Furthermore, themeanofthetwoA8746analyses, 0.145%Cu,iswithinonestandarddeviation ofthesingleLinde124welddepositanalysis(0.036%plus0.12%equals0.156%Cu).Therefore, aconservative best It,eLI Combustion Engineering, Inc.Proprietary Information estimateofthecoppercontentoftheweldsdescribed inTable2is0.16%basedontheheat-specific measurement andthestandarddeviation forgenericAdcomwireheatdata.]4.CopperContentofWeldDepositsUsingWireHeat¹348009[Weldwireheat¹348009,aHiMnMocoiledelectrode suppliedbyReidAvery,wasusedtofabricate theweldseamsdescribed inTable5,Thesubmerged arcweldingwasperformed usingeitherLinde124orLinde1092flux.Ninechemicalanalysesinvolving heat¹348009aredescribed inTable6.Thefirsttwoentriesarelaboratory experiment resultsand,therefore, arenotrepresentative ofproduction welddeposits.

Fourentriesareanalysisresultsfromsamplesextracted fromaH.B.RobinsonUnit2(HBR-2)reactorvesselheadweld.ThreeentriesareanalysisresultsfortheMillstone Unit1(MP-1)surveillance weldperformed forEPRIandGeneralElectric.

Thesevenrepresentative measurements werefromweldsdeposited usingLinde1092flux,andthetwoexperimental analysisresultswerefromweldsdeposited usingLinde1092orLinde124.TheLinde1092fluxwelddepositanalysesresultedinameancoppercontentof0.19%.Thismeanofmeasuredvaluesisdirectlyapplicable totheMillstone Unit1welddescribed inTable5.Giventhattheweldfluxdoesnotaffectthecoppercontentsignificantly (seeSectionIII),the0.19%meancopperisalsoapplicable totheSt.LucieUnit1welddescribed inTable5whichwasdeposited usingLinde124flux.]5.NickelContentofWeldDepositsUsingWireHeat¹348009andaColdNickelWireFeed[TheMillstone Unit1welddescribed inTable5wasfabricated usingacoldnickel fI~~tIr~v~1'dI ICombustion Engineering, Inc.Proprietary Information wirefeedinadditiontotheelectrode wireheat¹34B009.Therefore, thenickel4contentofthatweldwouldbegreaterthannormalforaHiMnMowirewelddepositwithoutthenickelfeedwire(asdiscussed inSectionIV.2).Table7presents24setsofdataonthenickelcontentofweldsdeposited usingRACO-3(ReidAvery)wires,Ni-200wire(coldnickelfeed)andLinde1092flux.Onlytwodifferent wireheats,singlyorintandem,wereused.Themeannickelcontentis1.065%andtherangeis0.72%to1.21%Ni.Table8presentsnickelcontentassociated withtheTable6datainwhichheat¹34B009wasusedwithNi-200wireandLinde1092flux.Allbuttwoofthenickelcontentsspecifictoheat¹34B009arewithintherangeofthedatafromTable7.TheaverageofthethreeMP-1surveillance weldvaluesis0.94%Ni,andtherangeis0.81to1.03%Ni.TheaverageoftheMP-1andthetwoin-rangeHBR-2valuesis0.88%Ni,andtherangeis0.75to1.03%Nifortheweldsdeposited withheat¹34B009.The0.88%Nirepresents themeanofmeasuredvaluesforwelddepositsformedusingheat¹34B009withacoldnickelwirefeed.However,giventhehighermeanofthegenericdata(Table7),amoreconservative estimateoftheheat-specific weldnickelcontentis1.03%,theupperboundofthedatafromTable8.]V.CONCLUSIONS PVeldsdeposited byCombustion Engineering usingHiMnMocoiledwireelectrodes yieldameannickelcontentof0.058%withastandarddeviation of0.037%.Therefore, aconservative estimate(meanplusonestandarddeviation) ofnickelcontentinsuchweldsis0.10%Ni.]2.[Weldsdeposited usingAdcomHeat¹A8746(HiMnMo)andLinde124fluxareconservatively estimated tocontain0.16%Cuand0.10%Ni.]

ItIIIII Combustion Engineering, Inc.Proprietary Information

[Theweldsdeposited usingReidAveryHeat¹34B009(HiMnMo)withLinde124orLinde1092fluxareestimated tocontain0.19%Cubasedonthemeanofmeasuredvalues,andconservative estimates ofnickelcontentare1.03%NiwithaNi-200wireadditionand0.10%NiwithoutaNi-200wireaddition.]

Thesebestestimatechemicalcontentsaresummarized inTable9fortheweldsdescribed inTables2and5.VLREFERENCES 1."Evaluation ofPressurized ThermalShockEffectsduetoSmallBreakLOCA'swithLossofFeedwater fortheCombustion Engineering NSSS,"Combustion Engineering ReportCEN-189,December1981.2."Application ofReactorVesselSurveillance DataforEmbrittlement Management,"

Combustion Engineering OwnersGroupReportCEN-405-P (DraftRevision2),December1992.

l Combustion Engineering, Inc.Proprietary Information TABLE1NickelContentforCoiledWireElectrode WeldDepositsSupplier~DesinationHiMnMoHiMnMoHiMnMoHiMnMoHiMnMoHiMnMo(NotReported)

HiMnMoHiMnMoHiMnMoHiMnMoHiMnMoHiMnMoHiMnMoHiMnMoHiMnMoWire~SnlierPagePagePagePagePagePagePage(NotReported)

PageReidAveryReidAveryReidAveryReidAveryReidAveryReidAveryReidAveryNickel~Contente0.03,0.050.02,0.020.01,0.03,0.030.03,0.03,0.04,0.04,0.05,0.07,0.110.02,0.03,0.03,0.03,0.03,0.04,0.04,0.050.02,0.03,0.03,0.030.03,0.030.050.060.08,0.090.07,0.08,0.120.16,0.160.040.03,0.06,0.070.10,0.110.05,0,05,0.06MnMoNiMnMoNiMnMoNiMnMoNiMnMoNiMnMoNiMnMoNiMnMoNiMnMoNiMnMoNiMnMoNiAdcomAdcomPageAdcomReidAvery.ReidAveryAdcom(NotReported)

ReidAveryReidAveryReidAvery0.740.73,0.740.64,0.68,0.68,0.59,0.61,0.72,0.59,0.60,0.62,0.64,0.64,0.64,0.730.690.73,0.740.69,0.72,0.72,0.75,0.78,0.79,0.70,0.710.720,64,0.640.660.73,0.74,0.76,0.810.80,0.82MnMoNiMnMoNiMnMoNiMnMoNiAdcomAdcomAdcom(NotReported) 1.00,1.011.02,1.03,1.03,1.04,1.04,1.05,1.05,1.05,1.080.96,1.00(4),1.02(2),1.06(2),1.100.89 III Combustion Engineering, Inc.Proprietary Information TABLE2WeldSeamsandConsumables Using[AdcomHeat]PA8746[(HiMnMo)]

ReactorVesselCalvertCliffsUnit2St.LucieUnit1Millstone Unit2WeldSeamNoote12-203A,B,C2-203A,B,C(Note2)2-203A,B,C3-203A,B,CWeldFluxTeLinde124Linde124Linde124Linde124WeldProcedure

~SufiSAA-4-0SAA-4-0SAA-4-0SAA-MA-501-2 Note1:Note2;Alloftheweldseamslistedweredeposited withoutacoldnickelwirefeed.Weldwireheat¹34B009[(Reid Averyi]wasalsousedwithheat¹A8746todeposittheweldseamsinasingleareprocess.

Il Combustion Engineering, Inc.Proprietary Information TABLE3CopperContentAnalysisResultsforWeldWireHeat¹A8746KAdcomHiMnMo)]ofAnalsisDateFlux/LotNo.~CoeuroWeldDepositWeldDeposit.8/27/69Linde124/¹3878 8/19/69Linde80/¹86510.170.12 Iln,l Combustion Engineering, Inc.Proprietary Information TABLE4Supplier~DesinationFlux~TeWeldDepositCopperContentfor[Adcom]WireHeats'Copper~ContentoHiMnMoHiMnMoMnMoNiMnMoNiMnMoNiMnMoNiMnMoNiMnMoNiLinde124Linde80Linde0091Linde1092Linde1092Linde1092Linde1092Linde10920.12(NoteA)0.17(NoteA)0.160.16,0.200.18,0.19,0.20(2),0.21(2),0.22(2),0.24,0.250.220.22(NoteB)0.27(NoteB)NoteA-FromTable3NoteB-Combination oftwoAdcomheatsinwelddeposit IIl Combustion Engineering, Inc.Proprietary Information TABLE5WeldSeamsandConsumables Using[ReidAvery]Heat¹34B009[(HiMnMo)]

eactorVesselWeldSeamNo.WeldFluxTWeldProcedure SNSt.LucieUnit12-203A,B,C(Note1)Linde124SAAMOMillstone Unit13-073(Note2)Linde1092SAA-33-J(1)

Note1:Weldwireheat¹A8746[(Adcom)]

wasalsousedwithheat¹34B009todeposittheweldseamsinasinglearcprocess.Acoldnickelwirefeedwasnotused.Note2:Theweldprocessincludedtheadditionofacoldnickelwirefeed.

5b~4IllIl Combustion Engineering, lnc.Proprietary Information TABLE6CopperContentAnalysisResultsforWeldWireHeat434B009T~IAIITl~TC~CSourceWeldDepositLinde10920.15CELabExperiment WeldDepositWeldDepositLinde124Linde10920.170.180CELabExperiment HBR-2HeadSampleWeldDepositLinde10920.182HBR-2HeadSampleWeldDepositLinde10920.183HBR-2HeadSampleWeldDepositLinde10920.202HBR-2HeadSampleWeldDepositLinde10920.18MP-1Surveillance Weld(EPRI)WeldDepositLinde10920.19MP-1Surveillance Weld(EPRI)IIWeldDepositLinde10920.18MP-1Surveillance Weld(GEReportNEDC-30299)

~~~(gy5~~~~~~

Combustion Engineering, Inc.Proprietary Information TABLE7WeldDepositNickelContentwithColdNickelFeedSourceNickelContentoMixedReidAveryHeats,Linde1092fluxandNi-200wire1.06,1.03,1.15,1.16,1.15,1.08,1.03,1.06,1.06,1.04,1.10,1.01,1.04,1.15,1.07SingleReidAveryHeat,Linde1092fiuxandNi-200wire0.99,I.12,0.92,0.94(Note1),1.115(Note2),1.05,1.20,0.97Note1:Averageof20analysesfromsingleweld,witharangeof0.72to1.08%Ni.Note2:Averageof2analysesfromonesurveillance programweld(1.02and1.21%Ni).

)~~~~'1~~I~~~~~

Combustion Engineering, Inc.Proprietary Information TABLE8NickelContentforHeat0'34B009withColdNickelFeedandLinde1092FluxNickelContentSource0.750.320.840.43"0.810.981.03HBR-2HeadSampleHBR-2HeadSampleHBR-2HeadSampleHBR-2HeadSampleMP-1Surveillance Weld(EPRI)MP;1Surveillance Weld(EPRI)MP-1Surveillance Weld(GEReportNEDC-30299)

Il~l~~~

Combustion Engineering, Inc.Proprietary Information TABLE9BestEstimateCopperand,NickelContentforVesselWeldsReactorVesselCalvertCliffsUnit2WeldSeamNo.2-203A,B,C~ContenteCuNi0.16"0.10St.LucieUnit12-203ABCtt)2-203A,B,Ct')0.160.100.190.10Millstone Unit22-203A,B,C3-203A,B,C0.160.100.160.10Millstone'nit 13-0730.191.03Notese(1)Chemicalcontentcontribution fromwireheatPA8746(2)Chemicalcontentcontribution fromwireheat034B009 I~1I~I

,"St.LucieUnits1and2DocketNo.50-335and50-389GenericLetter92%1Revision1FPLLetterL-93-286Enclosure 1iLIl)IR~~~meme10CFR2.7SOINFORMATION EXEMPTFROMDISCLOSURE CobololSeptember 28,1993F-MECH-93-050

.IMECH-93-015 Mr.R.ScottBoggsFloridaPower&LightCompanyP.O.Box1400JunoBeach,FL33408-0420

Subject:

UpperShelfEnergyInformation Pertaining totheSt.LucieUnit1and~Unit2ReactorVesselWelds.Appendices:

Attachments:

A)Certified MaterialTestReportsPertinent toSt.LucieUnit2"Atypical WeldMaterialInReactorPressureVesselWelds;Information Requested byNuclearRegulatory Commission Inspection

&Enforcement BulletinNo.78-12",PreparedByCombustion Engineering Inc.,datedJune8,1979.

DearMr.Boggs:

Thepurposeofthisreportistoprovideuppershelfenergy(USE)information onbeltlineweldsforFloridaPowerandLightCompany(FP&L),St.LucieUnits1and2reactorvessels.Thisinformation isrequiredbyFP&LinordertorespondtoaNRCrequestforadditional information associated withGenericLetter92-01(Ref1)asdescribed inReferences 2and3.Additionally, twocopiesoftheCombustion Engineering Document"Atypical WeldMaterialInReactorPressureVesselWelds"areincludedasrequested inReference 3.Pleaserecognize thatthisletterreport,including AppendixA,containsproprietary information andisnottobetransmitted orreproduced withoutspecificwrittenapprovalfromCombustion Engineering, Inc.TheAttachment "Atypical WeldMaterialInReactorPressureVessels",

isnotproprietary becauseitwaspubliclyreleasedinthepast.1.0St.LucieUnit1:1.1BarrackroundTheSt.LucieUnit1reactorvesselintermediate shelllongitudinal seamwelds(2-203A,B,C)werefabricated usingwireheatnumbersA8746and34B009andLinde124Fluxlots3878and3688respectively baseduponinputprovidedbyFP&LandrepeatedinReference 2.TheinitialCharpyuppershelfenergy(USE)forthisweldwasnotABBCombustion Engineering NuclearPowerCombustion Engineering, tnc.1000ProspectHitlRoadPostOtficeBox500Windsor,Connecticut 060954500 Telephone (203)6881911Fax(203)285-9512Tetex99297COMBENWSOR

PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.Mr.ScottBoggsSeptember 28,1993F-MECH-93-050 IMECH-93-015 Page2of10determined atthetimeofmanufacture, norissuchdataknowntobeavailable fromothersources(e.g.,surveillance programwelds)fortheaforementioned weldingconsumables.

TheNRChasstatedthatanacceptable approachforsatisfaction of10CFR50,AppendixGrequirements forinitialUSEistousetheaveragevaluefromsimilarly fabricated welds(Ref1);inthiscase,fromUSEmeasurements onsubmerged arcweldsproducedusingMIL-B4wireandLinde124Flux.1.2~ScoeThisreportprovidesabasisfortheinitialuppershelfenergyforweldwireheatnumbersA8746and34B009fabricated withLinde124fluxusingUSEdatafromweldsfabricated withLinde124flux.1,3Procedure Weldmaterialcertifications (WMC)(Ref4)attheABBCombustion Engineering facilityinChattanooga, Tennessee weresearchedtoobtainCharpyimpacttestdataspecifictoLinde124fluxwelds.TheWMCswerecompiledandtheinitialUSEdetermined fromtheCharpyimpactdatainaccordance withthedefinitions providedinASTME185-82(Ref5).Theprimarydefinitions necessary toestablish theuppershelfenergyareprovidedasfollows:1.3.1UpperShelfEnergyisdefinedastheaverageenergyvalueforallCharpyspecimens (normally three)whosetesttemperature isabovetheupperendofthetransition region.Forspecimens testedinsetsofthreeateachtesttemperature, thesethavingthehighestaveragemayberegardedasdefiningtheuppershelfenergy(Ref5),1.3.2CharpyTransition Curveisdefinedasagraphicpresentation ofCharpydata,including absorbedenergy,lateralexpansion andfractureappearance, extending overarangeincluding thelowershelfenergy(<5%shear),transition regionandtheuppershelfenergy()95%shear)(Ref5).1.3.3Transition Regionisdefinedastheregiononthetransition temperature curveinwhichtoughness increases rapidlywithrisingtemperature.

Intermsoffractureappearance, itischaracterized byarapidchangefromaprimarily cleavage(crystalline) fracturemodetoprimarily shearfracturemode(Ref5).Charpytestdataforeachweldwireheatandfluxlotcombination showingafractureappearance of95%shearorgreaterwerecompiled.

TheCharpyteststendedtobeconducted insetsofthreeoverarangeoftesttemperatures.

Thisallowedeachsetof PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.Mr.ScottBoggsSeptember 28,1993F-MECH-93-950 L-MECH-93-015 Page3of10threeteststobeaveragedtodetermine theUSEatagiventemperature.

ThehighestaveragedUSEforeachweldwireheatandfluxlotcombination wastakentobetheinitialUSEforthematerialandusedtodetermine thebestestimate(mean)andstandarddeviation forweldsfabricated usingLinde124flux.Thisbestestimatecanthenbeusedasinputforprojecting USEafterirradiation.

1.4ResultsCharpyimpactenergydatawasassessedfor68different weldwireheat/fluxlotcombinations todetermine theinitialuppershelfenergyinaccordance withASTME185-82definitions (Ref5).67USEvaluesrepresented theaverageofthreeCharpyimpactspecimens usuallytestedatasingletemperature.

Theremaining oneUSEvaluecomes'fromanaverageoftwoCharpyspecimens testedat100'F.ThisUSEvaluewasjudgedtobeadequateforthepurposesofthisanalysisandwouldnotsignificantly altertheresultsifomitted.Allfracturespecimens haveafractureappearance showingnolessthan95%shear.TheaverageuppershelfenergyfortheLinde124fluxweldsis[102.3ft-lbswithastandarddeviation of9.4ft-lbs.]Thedatarangesfrom[82.7ft-lbto125.7ft-lb.]Thisrepresents anaverageof68different weldwireheat/Linde124fluxlotcombinations presented inTable1.Table1:InitialUpperShelfEnergyValuesforLinde124Welds.CountWireHeat/FluxLotInitialUSEft-lb130502/034223P7150/06623P7150/10613P7246/06623P7246/09513P7246/106173P7317/02813P7317/06623P7317/0951104.397.086.097.3108.0103.794.098.3102.7103P7317/10613P7802/0171103.0109.7

\~

Mr.ScottBoggsSeptember 28,1993PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.F-MECH-93-950 L-MECH-93-015 Page4of10Count1213141516171819202122232526272830313233343536373839WireHeat/FluxLot3P7802/02813P8013/02813P8013/0871CU3P8013/02814P6524/09514P7656/09514P7656/10614P7869/01714P7869/02814P7869/08714P7869/10614P7927/06624P7927/10614P8632/0281SP7388/0662SP8866/0171SP8866/1061SP9028/0281651A708/0281651A708/087190071/095183637/095183646/106183653/106187005/106189408/075189476/106189827/0951InitialUSEft-Ib104.793.7110.0104.7106.388.091.3107.7104.793.797.3115.7116.3109.3107.791.3i107.796.794.096.3112.7116.7106.0106.790.3'110.7100.0118.3 0~4,>>elH11t PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.Mr.ScottBoggsSeptember 28,1993F-MECH-93-950 L-MECH-93-015 Page5of10Count4041424345464748495051525354555657585960616263656667WireHeat/FluxLot89828/028189828/095189828/106189833/087189833/095189833/106190067/095190069/095190069/106190077/095190077/106190128/095190132/095190144/106190146/106190149/106190154/095190157/106190159/095190209/106190211/106191762/066291762/1061E56906/0662F69025/017169025/1061LP2P8374/0597LPSP9744/0281InitialUSEft-lb96.0109.3104.3113.3105.395.7124.3125.797.6115.7112.399.3115.093.096.794.0,102.398.0112.7100.782.788.0100.389.391.088.698.3109.0 PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.Mr.ScottBoggsSeptember 28,1993F-MECH-93-950 L-MECH-93-015 Page6of10Count68WireHeat/FluxLotPSP73Sg/0342$AverageUSE:StandardDeviation:

InitialUSEft-lb97.7102.3(ft-Ib)9.4(ft-ib)2.0St.LucieUnit2:2.1~BackroundTheSt.LucieUnit2reactorvesselbeltlineweldswerefabricated usingtheconsumable presented inTable2baseduponinputprovidedbyFP8rLandrepeatedinReference 2.Thebasisfortheinitialuppershelfenergyfortheseweldswasweldmaterialcertification testsperformed atthetimeofvesselmanufacture (Ref4).Table2:BeltlineWeldWireConsumable usedinSt.LucieUnit2SeamNo.101-124A,B,C101-124C(Repair)101-142A,B,C101-171101-171WireHeatNo.836428363783637836373P7317FluxTypeLinde0091Linde0091Linde0091Linde124Linde124FluxLotNo.353611221122095109512.2~ScoeWeldmaterialcertification testreports(WMCs)forthefollowing weldwireheatandfluxlotsareprovided:

Wireheat83642,Linde0091fluxlot3536;wireheat83637,Linde0091fluxlot1122;wireheat83637,Linde124fluxlot0951;andwireheat3P7317,Linde124fluxlot0951.Uppershelfenergyvaluesfortheaforementioned wire/flux combinations willbedetermined ifsufficient information ispresented intheWMC.Wherefullyapplicable information isnotavailable, thedegreeofapplicability willbeaddressed aspertheprojectproposal(Ref2)~

PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.Mr.ScottBoggsSeptember 28,1993F-MECH-93-950 L-MECH-93-015 Page7of102.3Procedure Weldmaterialcertifications (WMC)attheABBCombustion Engineering facilityinChattanooga, Tennessee weresearchedtoobtainCharpyimpacttestdataspecifictotheconsumable presented inTable2.TheWMCswerecompiledandtheinitialUSEdetermined, whenpossible, fromtheCharpyimpactdatainaccordance withthedefinitions providedinASTME185-82(Ref5)andpresented insections1.3.1-1.3.3.Wherefullyapplicable information wasnotavailable intheWMC(e,g.,wherepercentshearfracturewasnotreported) thedegreeofapplicability totheUnit2weldseamUSEisaddressed.

2.4ResultsWeldmaterialcertification (WMC)reportsfortheweldwireheat/fluxlotnumbercombinations presented inTable2wereobtainedfromrecordsinpossession ofCombustion Engineering.

TheWMCspertaining totheLinde124weldscontained enoughinformation tofullydetermine theinitialuppershelfenergyvaluesfortheconsumable used.TheWMCspertaining totheLinde0091weldsdidnotcontainsufficient information; however,enoughinformation wasavailable todetermine aconservative (lowerbound)uppershelfenergyvaluerelevanttotheconsumables used.AcopyoftheWMCsfortheconsumables listedinTable2areprovidedinAppendixA,Adescription oftheprocessusedtodetermine theUSEisdescribed foreachweldwireheat/fluxlotcombination asfollows:2.4.1WireHeat83637,FluxTypeLinde124,FluxLotNo.0951:TheWMCpertaining tothiscombination ofweldconsumables containsafullarrayofCharpytestsoverarangeoftemperatures.

[Theinitialuppershelfenergywasdetermined fromasetofthreeCharpyspecimens testedat160'F.Allthreespecimens showafractureappearance of100%shearfailureandtheinitialuppershelfenergycalculated tobe116.7ft-lb.]2.4.2WireHeat3P7317,FluxTypeLinde124,FluxLotNo.0951:TheWMCpertaining tothiscombination ofweldconsumables containsafullarrayofCharpytestsoverarangeoftemperatures.

[Theinitialuppershelfenergywasdetermined fromasetofthreeCharpyspecimens testedat160'F.Allthreespecimens showafractureappearance of100%shearfailureandtheinitialuppershelfenergywascalculated tobe102.7ft-lb.]2.4.3WireHeat83642,FluxTypeLinde0091,FluxLotNo.3536:TheWMCpertaining tothiscombination ofweldconsumables containslimitedCharpytestsattwotest-temperatures andfractureappearance isnotrecorded.

[Anaverage PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.Mr.ScottBoggsSeptember 28,1993F-MECH-93-950 L-MECH-93-015 Page8of10Charpyenergyat10'Fwascalculated fromthreespecimens tobe116.3ft-lbs.]Thisvaluedoesnotrepresent an"official" uppershelfenergyfortheseweldconsumables becausenomeasurement ofthefractureappearance (i.e.,%shearfracture) isavailable.

However,thisvaluesuggestsverygoodfracturetoughness characteristics forthematerialat10'Fand,therefore, maybeusedasalowerboundapproximation totheinitialUSE.2.4.4WireHeat83637,FluxTypeLinde0091,FluxLotNo.1122:TheWMCpertaining tothiscombination ofweldconsumables containslimitedCharpytestsat10'Fandfractureappearance isnotrecorded.

[AnaverageCharpyenergywascalculated fromthreespecimens tobe136.3ft-lb.]Thisvaluedoesnotrepresent anofficialuppershelfenergyfortheseweldconsumables becausenomeasurement ofthefractureappearance (i.e.,%shearfailure)isavailable.

However,thisvaluesuggestsverygoodfracturetoughness characteristics forthematerialat10'Fand,therefore, maybeusedasalowerboundapproximation totheinitialUSE.

3.0CONCLUSION

S:

Noinformation isavailable todetermine theinitialuppershelfenergyspecifictotheweldconsumables usedintheSt.LucieUnit1reactorvessel2-203A,B,Cweldments.

Asanalternate

approach, abestestimatevalueofinitialUSEwascalculated using68weldsfabricated withLinde124flux.ThebestestimateinitialUSEoftheseweldsfabricated withMIIB4wireandLinde124fluxwascalculated tobe[102.3ft-lbwithastandarddeviation of9.4ft-lb.]Thisbestestimatevaluecanbeusedasinputforprojecting USEafterirradiation.

Completeorpartialinformation isavailable todetermine theinitialuppershelfenergyspecifictotheconsumable usedintheSt.LucieUnit2beltlinewelds.Weldmaterialcertification reportsforthesematerials areprovidedinAppendixA.Weldwireheat3P7317withLinde124fluxlot0951hasacalculated initialuppershelfenergyvalueof[102.7ft-lb.]Weldwireheat83637withLinde124fluxlot0951hasacalculated initialuppershelfenergyvalueof[116.7ft-lb.]Weldwireheat83637withLinde0091fluxlot1122hasanaverageCharpyenergyat10'Fof[136.3ft-lb;]weldwireheat83642withLinde0091fluxlot3536hasanaverageCharpyenergyat10Fof[116.3ft-lb.]Theseaverageenergiescanbeconservatively assumedtobealowerboundapproximation oftheinitialuppershelfenergyforthetwoLinde0091fluxwelds.

PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.Mr.ScottBoggsSeptember 28,1993F-MECH-93-950 IMECH-93-015 Page9of10Ifyouhaveanyquestions orconcernsregarding thisinformation, pleasefeelfreetocontactmeat(203)285-3794orSteveByrneat(203)285-3469.

Sincerely, COMBUSTION ENGINEERING, INCDaviJ.WoodillaProjectEngineerEnclosure VERlFlCATION STATUS:COMPLETEatroSaloty8ctatod dostgnMormatton

~tnlhhdooratrtlt boaboonverifkd tobocorralbymoansor:DaogogooooogoggcocigslisL

'tOAMigLOgosssssOosiogs-Cocoasaccoo.VsllgscilcoTosoos.TossgosagSoo.~PwarcD.Srrrm~n,v Indopondont RoNtowonNarno/SignaturolOato Mr.ScottBoggsSeptember 28,1993PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.F-MECH-93-950 L-MECH-93-015 Page10of10

References:

1.LetterfromJ.A.Norris(NRC)toJ.H.Goldberg(FP&L),datedJuly28,1993,DocketNo.50-335,50-389.

Subject:

St.LucieUnits1and2-RequestforAdditional Information

-GenericLetter92-01,Revision1(TACNOS.M83505andM83506).2.ABB/CELetterNo.F-MECH-93-042, "St.LucieUpperShelfEnergyEvaluation, ProposalNo.93-241-A6A,"

S.T.Byrne,datedAugust27,1993.3.FloridaPowerandLightCompanyPurchaseOrderNo.B93633-30016, datedAugust31,1993.4.5.ABB/CELetterNo.MECH-93-1214, "WeldMaterialCertification Reports",

S.T.Byrne,datedOctober14,1993.ASTMDesignation E185-82,"Standard PracticeforConducting Surveillance TestsforLight-Water CooledNuclearPowerReactorVessels,"

AnnualBookofASTMStandards, Vol.12.02,ASTM,Philadelphia, PA.

Mr.ScottBoggsSeptember 28,1993PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.F-MECH-93-050 L-MECH-93-015 PageA1ofA10APPENDIXACertified MaterialTestReportsPertinent toSt.LucieUnit2 Mr.ScottBoggsSeptember 28,1993PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.F-MECH-93-050 L-MECH-93-015 PageA2ofA10ContentsofAppendixA~PaeA4A6A8A10TitleCertified MaterialTestReportforWeldWireHeatNo.83637LindeFluxType124,FluxLotNo.0951Certified MaterialTestReportforWireHeatNo.3P7317,LindeFluxType124,FluxLotNo.0951Certified MaterialTestReportforWeldWireHeatNo.83642,LindeFluxType0091,FluxLotNo.3536Certified MaterialTestReportforWeldWireHeatNo.83637,LindeFluxType0091,FluxLotNo.1122.

Mr.ScottBoggsSeptember 28,1993PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.F-MECH-93-050 IMECH-93-015 PageA3ofA10Certified MaterialTestReortforWeldWireHeatNo.83637LindeFluxe124FluxLotNo.0951 Mr.ScottBoggsSeptember 28,1993PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.F-MECH-93-050 IMECH-93-015 PageA4ofA10"~PQQJFRSYSTEMSToJ.McDowellcc:R.E.Lorentz,Jr.S.R.LewisS.A.LewisB.GoinsSubjectWeldingMaterialCertlficatlon ToRequirements of,ASMESectionIIIJobNumberM-32255ProjectNumber960009'rom-DateMetallurgical

&Materials Laboratory Chattanooga 4-22-76Thefollowing testdatsfor3/16"dleterbare're,TypeLowCu-Phos,HeatNo.83637,FluxType124,LotNo.09(TestNo.1824).Awelddepositwasmadeusingtheaboveheatofwireandlotofflux.Weldingwasdoneinaccordance withSAA-SMA-511-0.

Thecompleted weldmentwasgivenapostweldheattreatment of1150'F+50'Ffor40hoursandfurnacecooledto600F.IMPACTAND/ORFRACTURETESTSTYPETEMPOFVALUETEMP.0FVALUESNOTCVN-80-80:-80'40-40-40\-108-1oi+60+60+60~tJbs~her2126S~523540.'055356Fg6098094701058010680~10880ilsLatEx211817423240~72+787577-70-60-50+100+100+100+160+160+160DroWelaht1F2NF1NF112/116'1712011310084~100/8&.100901008610086-70FALL'WELDMETAL.505TENSILELabC;ode.i'PYieldStrengthKS[69.0UltimateTensileStrenathKS84.3Elongation 241n/Reduction ofArea%69.2JMA:gb

Mr.ScottBoggsSeptember 28,1993PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.F-MECH-93-050 L-MECH-93-015 PageASofA10Certified MaterialTestReortforWireHeatNo.3P7317LindeFluxTe124FluxLotNo.0951 PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.Mr.ScottBoggsSeptember 28,1993pj444'<<<<I~Žt~".==aPGQfEHSVS7tr.MS F-MECH-93-050 L-MECH-93-015 PageA6OfA10ToSubjectFrom-DateMetallurgical 6,MaterialLaboratory WeldingMaterialCertification ToRequirements ofASMESectionIIIJobNumberM-322SSProspectNumber960009J.McDowellcc:R.E.Lorentz,Jr.S.R.LewisChattanooga Phos,HeatNo.3P7317,FluxType124,LotNo.0951.(TestNo.1859)S.A.LewisB.GoinsPROPRIETARY Thefollowing testdatasfor1/8"diaerbarewierypeLowCu-Awelddepositwasmadeusingtheaboveheatofwirealotoffaux.Weldingwasdoneinaccordance withSAA-SMA-104-0 TheciafpletdtfŽ weldmentwasgivenapostweldheattreatment of1150'F+50'Ffor40~hoursandfurnacecooledto600'F.IMPACTAND/ORFRACTURETESTSTYPETEMPoFVALUESTEMP.0FVALUESNOTCVN-80-80-80-40-40-40-20-20,-20>+20+20+20+60+60+60goths'ea150~2352154230403033/'051~30503052>3O726075.6077609710010210099100~111aLatEx 101312262520'148S3~51667068-90-80-70-60+100+100+100+160+160+1601F1NF1F2NF1NF94'0093+~100+100<100>9610010410010810066370687379-80'LLWELDMETAL.505TENSILELabCodeYieldStrengtKS[69.5UltimateTensiStrenethK.p85.5Elongation in2"%28.54-"JA'mold(rReduction ofArea%69.0JMA:gb Mr.ScottBoggsSeptember 28,1993PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.F-MECH-93-050 L-MECH-93-015 PageA7ofA10Certified MaterialTestReortforWeldWireHeatNo.83642LindeFluxe0091FluxLotNo.3536

~~~~'~~~4~'~0~~sog~~o~Is~~II~~~o~~~--~~~-~~~~~~~~'III'~~~~~~~~~~~~~~~o~~~~~~~~~~~~~~~~~~~~~~~~0'0o~~~~~~II~~-~~~~I~I~~~~~~~~~~~

Mr.ScottBoggsSeptember 28,1993PROPRIETARY INFORMATION COMBUSTION ENGINEERING, INC.F-MECH-93-050 L-MECH-93-015 PageA9ofA10Certified MaterialTestReortforWeldWireHeatNo.83637LindeFluxe0091FluxLotNo.1122.

Mr.ScottBoggsSeptember 28,1993F-MECH-93-050 PROPRIETARY INFORMATION L-MECH-93-015 COMBUSTION ENGINEERING, INC.PageA10ofA10illICM-UfIIUDUUHVCEDlUIM!.)I..I I'EstlCONIHUSYIQM DIVISIIGM SubectE-fPROPRfFrom-DateMr.P.C.Kiefer:c:Mr.R.JayMr.S.A.LewisMr.S.R.LewisMr.R.E.Lorentz,jr.Mr.G.PorterMr.R.E.SmithWeldingMaterialQualification toRequirements ofASMESectionIIIJobNumberD-32255ProjectNumber960009Metallurgical ResearchandDevelopment Department Chattanooga February8,1973Thefollowing testdataisfor3/16"diameterbarewire,typelowCu-Phos.,

HeatNo.83637,FluxType0091,LotNo.1122.Awelddepositwasmadeusingtheaboveheatofwireandlotofflux.Weldingwasdoneinaccordance withC-EWeldingProcedure Specification SA-33-34.

Thecompleted weldmentwasgivenapostweldheattreatment of1150'F+25Ffor40hoursandfurnacecooledto600'F.IMPACTANDORFRACTURETESTSTYPETEMPoFVALUES~Ft.Lbs.MilsLat.Exn.TEMP.oFVALUESDroWeihtsNOT+10"+10+10153131125858177-50-401F2NF-50FALLWELDMETAL.505TENSILELabYieldStrengthCodeKSIUltimateTensileStrength.

KSIElongation in2"Reduction ofArea/oBC77~229.$73.1.Arnold