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

REGgORYINFORMATIONDISTRIBUNSYSTEM(BIDS~)ACCESSIONNBR:9311300069DOC.DATE:93/11/15NOTARIZED:NODOCKET0FACIL:50-335St.LuciePlantiUnitiiFloridaPoujer&LightCo.0500033550-389St.LuciePlantiUnit2iFloridaPoujer5LightCo.05000389AUTH.NAMEAUTHORAFFILIATIONSAGER'.*.FloridaPoeer5LightCo.RECIP.NAMERECIPIENTAFFILIATIONDocumentControlBranch(DocumentControlDesk)

SUBJECT:

Forwardsresponseto930728requestforaddiinforeIGL92-OIiRevIiincludingnewmeanchemistryvalvesforUnitIloujerlongitudinalujelds~changestoTSBasesTableB3/4.D4-15CE-NPSD-906-PZcCE-NPSD-906-NP.CE-NPSD-906-Peithhe1d.SDISTRIBUTIONCODE:A028DCOPIESRECEIVED:LTRENCLSIZE:TITLE:GenericLetter92-01Responses(ReactorVesselStructuralIntegritgNOTES:RECIPIENTIDCODE/NAMEPD2-2PDCOPIESLTTRENCL11RECIPIENTIDCODE/NAMENORRIS'COPIESLTTRENCL22INTERNAL:ACRSNRR/DORS/OGCBNRR/DRPWOC/LFDCBEXTERNAL:NRCPDR01NRR/DE/EMCBNRR/DRPE/PDI-1NUDOCS-ABSTRACTOGC/HDS3RES/DE/MEB1+P,NSIC221111011~PNOTETOALLRIDS"RECIPIENTS:PLEASEHELPUSTOREDUCEWASTE!CONTACTTHEDOCUMENTCONTROLDESK.ROOMPl-37(EXT.504-2065)TOELIMINATEYOURNAMEFROMDISTRIBUTIONLISTSFORDOCUMENTSYOUDON'TNEED!TOTALNUMBEROFCOPIESREQUIRED:LTTR21ENCL19 81I' P.O.Box128,Ft.Pierce,FL34954-012$November15,1993't0CFR2.790fNFORMATJONEXEMPTFROMDlSCLOSUREL-93-28610CFR50.410CFR50.54(f)U.S.NuclearRegulatoryCommissionAttn:DocumentControlDeskWashington,D.C.20555RE:St.LucieUnits1and2DocketNo.50-335and50-389GenericLetter92-01Revision1ResonsetoReuestforAdditionalInformationTheadditionalinformationandclarificationsrequestedbyNRCletterdatedJuly28,1993,areprovidedinattachments1and2tothisletter.Attachment1alsoprovidesnewmeanchemistryvaluesforSt.LucieUnit1lowerlongitudinalwelds.Attachment3andenclosures1through4providesupportinginformationforthe,response.Thepreparationoftheresponserequiredreviewofthereactorvesselfabricationrecordsbytheoriginalequipmentmanufacturer(CombustionEngineering)asbackgroundforpartoftheresponse.FPLletter(L-93-232)datedSeptember10,1993,providedthescheduleforrespondingtothesubjectRAI.Attachment3provideschangestotheTechnicalSpecificationBasesTableB3/4.4-1foreachunit.Thechangeswereidentifiedduringthepreparationofthisresponseandwerereviewedpursuantto10CFR50.59.ThereviewdeterminedthechangeswerenotanunreviewedsafetyquestionanddonotrequireachangetotheirrespectiveTechnicalSpecifications.Enclosures1and2areproprietaryandnon-proprietaryversionsofABBCombustionEngineeringletter(F-MECH-93-050)datedSeptember28,1993.Thisletterprovidestheuppershelfenergy(USE)informationonbeltlineweldsfortheSt.LucieUnit1andUnit2reactorvessels.Enclosure3,CENPSD-906-P,andEnclosure4,CENPSD-906-NP,areproprietaryandnon-proprietaryversionsoftheABBCombustionEngineeringreport"CEOGProgramtoEvaluateChemicalContentofWeldDepositsFabricatedUsingHeatsA8746-and34B009"preparedfortheCombustionEngineeringOwnersGroup(CEOG).Thisreportprovidesthebasisforthecopperandnickelcontentofreactorvesselweldsfortwo(2)oftheweldwireheatsusedinthefabricationoftheSt;LucieUnit1reactorvessel.Enclosures1and3tothisthedisclosureofwhichPDRADOCK05000335PPDR,anFPLGroupcompanyletter=containproprietaryinformation,couldcompromisetradesecretsor~/5j 47~J=<-AJSQDJetQPZ~Gr'i-l>"..>>.HIk~J' commercialinformationconsideredbyABBCombustionEngineering,Inc.asprivilegedandconfidential.Pursuantto10CFR2.790(a)(4),FPLrequeststhatproprietaryversionsoftheCombustionEngineeringletterandreportbewithheldfrompublicdisclosure.Theaffidavitsrequiredby10CFR2.790(b)(1)executedbyABBCombustionEngineeringsupportingthisrequestareincluded.Pleasecontactusifthereareanyquestionsaboutthissubmittal.Verytrulyyours,D.A.gerVicersidentSt.L'ePlantDAS/GRM/kwDAS/PSL11014-93cc:StewartD.Ebneter,RegionalAdministrator,RegionII,USNRCSeniorResidentInspector,USNRC,St.LuciePlant St.LucieUnits1and2DocketNo.50-335and50-389GenericLetter92%1Revision1FPLLetterL-93-286AttachmentAFFIDAVITPURSUANTTO10CFR2.790CombustionEngineering,Inc.)StateofConnecticut)CountyofHartford)SS.:I,S.A.Toelle,deposeandsaythatIamtheManager,NuclearLicensing,ofCombustionEngineering,Inc.,dulyauthorizedtomakethisaffidavit,andhavereviewedorcausedtohave'eviewedtheinformationwhichisidentifiedasproprietaryandreferencedin'theparagraphimmediatelybelow.Iamsubmittingthisaffidavit.inconjunctionwiththeFloridaPowerandLightCompanyandinconformancewiththeprovisionsof10CFR2.790oftheCommission'sregulationsforwithholdingthisinformation.Theinformationforwhichproprietarytreatmentissoughtiscontainedinthefollowingdocument:ABBLetterF-MECH-93-050.-/L-MECH-93-015,"UpperShelfEnergyInformationPertainingtotheSt.LucieUnit1andUnit2ReactorVesselWeld,"September28,1993.Thisdocumenthasbeenappropriatelydesignatedasproprietary.IhavepersonalknowledgeofthecriteriaandproceduresutilizedbyCombustionEngineeringindesignatinginformationasatradesecret,privilegedorasconfidentialcommercialorfinancialinformation.Pursuanttotheprovisionsofparagraph{b){4)ofSection2.790oftheCommission'sregulations,thefollowingisfurnishedfor p12considerationbytheCommissionindeterminingwhethertheinformationsoughttobewithheldfrompublicdisclosure,includedintheabovereferenceddocument,shouldbewithheld.1~2.3~4.Theinformationsoughttobewithheldfrompublicdisclosure,whichisownedandhasbeenheldinconfidencebyCombustionEngineering,isspecificmaterialandmechanicalpropertiespertainingtotheweldsinreactorvesselsfabricatedbyCombustionEngineering.Theinformationconsistsoftestdataorothersimilardataconcerningaprocess,methodorcomponent,theapplicationofwhichresultsinsubstantialcompetitiveadvantagetoCombustionEngineering.TheinformationisofatypecustomarilyheldinconfidencebyCombustionEngineeringandnotcustomarilydisclosedtothepublic.CombustionEngineeringhasarationalbasisfordeterminingthetypesofinformationcustomarilyheldinconfidencebyitand,inthatconnection,utilizesasystemtodeterminewhenandwhethertoholdcertaintypesofinformationinconfidence.ThedetailsoftheaforementionedsystemwereprovidedtotheNuclearRegulatoryCommissionvialetterDP-537fromF.M.SterntoFrankSchroederdatedDecember2,1974.Thissystemwasappliedindeterminingthatthesubjectdocumenthereinisproprietary.TheinformationisbeingtransmittedtotheCommissioninconfidenceundertheprovisionsof10CFR2.790withtheunderstandingthatitistobereceivedinconfidencebythe 0~r Commission.5.Theinformation,tothebestofmyknowledgeandbelief,isnot6.availableinpublicsources,andanydisclosuretothirdpartieshasbeenmadepursuanttoregulatoryprovisionsorproprietaryagreementswhichprovideformaintenanceoftheinformationinconfidence.PublicdisclosureoftheinformationislikelytocausesubstantialharmtothecompetitivepositionofCombustionEngineeringbecause:a~b.c~d.AsimilarproductismanufacturedandsoldbymajorpressurizedwaterreactorcompetitorsofCombustionEngineering.DevelopmentofthisinformationbyC-Erequiredhundredsofmanhoursandhundredsofthousandsofdollars.Tothebestofmyknowledgeandbelief,acompetitorwouldhavetoundergosimilarexpenseingeneratingequivalentinformation.Inordertoacquiresuchinformation,acompetitorwouldalsorequireconsiderabletimeandinconveniencetoascertainthespecificmaterialandmechanicalpropertiespertainingtotheweldsinreactorvesselsfabricatedbyCombustionEngineering.Theinformationrequiredsignificanteffortandexpensetoobtainthelicensingapprovalsnecessaryforapplicationof'Itheinformation.Avoidanceofthisexpensewoulddecreaseacompetitor'scost~inapplyingtheinformationand marketingtheproducttowhichtheinformationisapplicable.e.TheinformationconsistsofspecificmaterialandmechanicalpropertiespertainingtotheweldsinreactorvesselsfabricatedbyCombustionEngineering,theapplicationofwhichprovidesacompetitiveeconomicadvantage.TheavailabilityofsuchinformationtocompetitorswouldenablethemtomodifytheirproducttobettercompetewithCombustionEngineering,takemarketingorotheractionstoimprovetheirproduct'spositionorimpairthepositionofCombustionEngineeringsproduct,andavoiddevelopingsimilardataandanalysesinsupportoftheirprocesses,methodsorapparatus.f.-InpricingCombustionEngineering'sproductsandservices,significantresearch,development,engineering,analytical,manufacturing,licensing,qualityassuranceandothercostsandexpensesmustbeincluded.TheabilityofCombustionEngineering'scompetitorstoutilizesuchinformationwithoutsimilarexpenditureofresourcesmayenablethemtosellatpricesreflectingsignificantlylowercosts.g.Useoftheinformationbycompetitorsintheinternationalmarketplacewouldincreasetheirability,to;marketnuclearsteamsupplysystemsbyreducingthecostsassociatedwiththeirtechnologydevelopment.Inaddition,disclosurewouldhaveanadverse"economic,impactonCombustionfEngineering'spotentialforobtainingormaintaining lr',St.LucieUnits1and2DocketNo.50-335and50-389GenericLetter92-01Revision1FPLLetterL-93-286AttachmentAFFIDAVITPURSUANTTO10CFR2.790CombustionEngineering,Inc.)StateofConnecticut)CountyofHartford)SS.:I,S.A.Toelle,deposeandsaythatIamtheManager,NuclearLicensing,ofCombustionEngineering,Inc.,dulyauthorizedtomakethisaffidavit,andhavereviewedorcausedtohavereviewedtheinformationwhichisidentifiedasproprietaryandreferencedintheparagraphimmediatelybelow.IamsubmittingthisaffidavitinconjunctionwiththeFloridaPowerandLightCompanyandinconformancewiththeprovisionsof10CFR2.790oftheCommission'sregulationsforwithholdingthisinformation.Theinformationforwhichproprietarytreatmentissoughtiscontainedinthefollowingdocument:ABBLetterF-MECH-93-050/L-MECH-93-015("UpperShelfEnergyInformationPertainingtotheSt.LucieUnit1andUnit2ReactorVesselWeld,"September28,1993.Thisdocumenthasbeenappropriatelydesignatedasproprietary.IhavepersonalknowledgeofthecriteriaandproceduresutilizedbyCombustionEngineeringindesignatinginformationasatradesecret,privilegedorasconfidentialcommercialorfinancialinformation.Pursuanttotheprovisionsofparagraph(b)(4)ofSection2.790oftheCommissionsregulations,thefollowingisfurnishedfor 2oftheCommissionsregulations,thefollowingisfurnishedforconsiderationbytheCommissionindeterminingwhethertheinformationsoughttobewithheldfrompublicdisclosure,includedintheabovereferenceddocument,shouldbewithheld.Theinformationsoughttobewithheldfrompublicdisclosure,whichisownedandhasbeenheldinconfidencebyCombustionEngineering,isthereactorpressurevesselweldmaterialspecificationsandprocedures.2~Theinformationconsistsoftestdataorothersimilardataconcerningaprocess,methodorcomponent,theapplicationofwhichresultsinsubstantialcompetitiveadvantagetoCombustionEngineering.3~TheinformationisofatypecustomarilyheldinconfidencebyCombustionEngineeringandnotcustomarilydisclosedtothepublic.CombustionEngineeringhasarationalbasisfordeterminingthetypesofinformationcustomarilyheldinconfidencebyitand,inthatconnection,utilizesasystemtodeterminewhenandwhethertoholdcertaintypesofinformationinconfidence.ThedetailsoftheaforementionedsystemwereprovidedtotheNuclearRegulatoryCommissionvialetterDP-537fromF.M.SterntoFrankSchroederdatedDecember2,1974.Thissystemwasappliedindeterminingthatthesubjectdocumenthereinisproprietary.

TheinformationisbeingtransmittedtotheCommissioninconfidenceundertheprovisionsof10CFR2.790withtheunderstandingthatitistobereceivedinconfidencebytheCommission.Theinformation,tothebestofmyknowledgeandbelief,isnotavailableinpublicsources,andanydisclosuretothirdpartieshasbeenmadepursuanttoregulatoryprovisionsorproprietaryagreementswhichprovideformaintenanceoftheinformationinconfidence.PublicdisclosureoftheinformationislikelytocausesubstantialharmtothecompetitivepositionofCombustionEngineeringbecause:a.AsimilarproductismanufacturedandsoldbymajorpressurizedwaterreactorcompetitorsofCombustionEngineering.b.-DevelopmentofthisinformationbyC-Erequiredhundredsofc~thousandsofmanhoursandmillionsofdollars.Tothebestofmyknowledgeandbelief,acompetitorwouldhavetoundergosimilarexpenseingeneratingequivalentinformation.Inordertoacquiresuchinformation,acompetitorwouldalsorequireconsiderabletimeandinconveniencetoascertainthereactorpressurevesselweldmaterialspecificationsandprocedures.

Theinformationrequiredsignificanteffortandexpensetoobtainthelicensingapprovalsnecessaryforapplicationoftheinformation.Avoidanceofthisexpensewoulddecreaseacompetitor'scostinapplyingtheinformationandmarketingtheproducttowhichtheinformationisapplicable.e.Theinformationconsistsofthedetailsconcerningthereactorpressurevesselweldmaterialspecificationsandprocedures,theapplicationofwhichprovidesacompetitiveeconomicadvantage.Theavailabilityofsuchinformationtocompetitorswouldenablethemtomodifytheirproducttobettercompetewith.CombustionEngineering,takemarketingorotheractionstoimprovetheirproduct'spositionorimpairthepositionofCombustionEngineering'sproduct,andavoiddevelopingsimilardataandanalysesinsupportoftheirprocesses,methodsorapparatus.InpricingCombustionEngineering'sproductsandservices,significantresearch,development,engineering,analytical,gimanufacturing,licensing,qualityassuranceandothercostsandexpensesmustbeincluded.TheabilityofCombustionEngineering'scompetitorstoutilizesuchinformationwithoutsimilarexpenditureofresourcesmayenablethemtosellatpricesreflectingsignificantlylowercosts.Useoftheinformationbycompetitorsintheinternationalmarketplacewouldincreasetheirabilitytomarketnuclearsteamsupplysystemsbyreducingthecostsassociatedwith H'

theirtechnologydevelopment.Inaddition,disclosurewouldhaveanadverseeconomicimpactonCombustionEngineering'spotentialforobtainingormaintainingforeignlicensees.Furtherthedeponentsayethnot.s.8.S.A.ToelleManagerNuclearLicensingSworntobeforemethis~d+dayof199304M~oaryPubc'-Mycommissionexpires:38(-~

0JIJl'l foreignlicensees.Furtherthedeponentsayethnot.S.A.ToelleManagerNuclearLicensingSworntobeforemethis~9dsyof1993Iy'IoaryPublc,""My.commissionexpires:

Pt/

St.LucieUnits1and2DocketNo.50-335and50-389GenericLetter92-01Revision1ResponsetoRequestforAdditionalInformation(RAI)ATTACHMENT1RESPONSEFORST.LUCIEUNIT1OriinalGL92-01uestion2.aCertainaddresseesarerequestedtoprovidethefollowinginformationregardingAppendixGto10CFRPart50:AddresseesofplantsforwhichtheCharpyuppershelfenergyispredictedtobelessthan50foot-poundsattheendoftheirlicensesusingtheguidanceinParagraphC.1.2orC.2.2inRegulatoryGuide1.99,Revision2,arerequestedtoprovidetotheNRCtheCharpyuppershelfenergypredictedforDecember16,1991,andfortheendoftheircurrentlicenseforthelimitingbeltlineweldandtheplateorforgingandarerequestedtodescribetheactionstakenpursuanttoParagraphsIV.A.1orV.CofAppendixGto10CFRPart50.uestion2.ainGL92-01RAITheresponseindicatesthattheinitialuppershelfenergy(USE)valuesforwelds2-203A,B,Carenotknown.EitherprovidetheCharpyUSEvaluesforeachbeltlineweldwithnodocumentedinitialUSEvalueorprovidetheCharpyUSEandanalysisfromweldsthatwerefabricatedusingthesamevendor,fabricationtimeframe,fabricationprocess,andmaterialspecificationtodemonstratethatallbeltlineweldswithnodocumentedinitialUSEvalueswillmeettheUSErequirementsofAppendixG,10CFR50.Ifthiscannotbeprovided,thensubmitananalysiswhichdemonstratesthatlowervaluesofUSEwillprovidemarginsofsafetyagainstfractureequivalenttothoserequiredbyAppendixGoftheASMECode.TheresponseindicatesthattheinitialUSEvalueforthelimitingplate,C-8-2,is103ft-lb.ThestaffbelievesthatthisinitialUSEvalueof103ft-lbisfromlongitudinalCharpyspecimens,mistakenlyreportedasfromtransverseCharpyspecimens.Twosourcessupportthisconclusion:pages57and58ofreportTR-F-MCM-004labelledthisUSEvalueas"longitudinal,"andTableB3/4.4-1oftheplant'sTechnicalSpecificationlisted78ft-lbasthe"transverse"USEvalueofthisplate.ConfirmthisandupdatetheEOLUSEvalueforthisplate.IftheupdatedEOLUSEisbelow50ft-lbbasedonNRCcriteria,thensubmitananalysiswhichdemonstratesthatlowervaluesofUSEwillprovidemarginsofsafetyagainstfractureequivalenttothoserequiredbyAppendixGoftheASMECode.

PIk~.)N ResonsetoRAIuestion2.aTheresponsetoGL92-01+didnotincludetheuppershelfenergy(USE)valuesfortheStLucieUnit1intermediateshelllongitudinalwelds(2-203A,B,C),becausetheseweldswerenotconsidered"limiting"basedontheirrelativelylowestimatedcopper(Cu)andnickel(Ni)contentandlowRT~~.TheunirradiatedCharpyUSEvalueforwelds2-203A,B&Cwasnotobtainedduringfabrication.TheseweldseamswereallfabricatedusingthesameweldwiresA8746and34B009withLinde124fluxnotedinTable1.CombustionEngineering(CE)performedananalysisofUSEvaluesfor68otherCEfabricatedweldsusingMilB-4wireandLinde124flux+.TheaverageUSEvalueofthisdatasetis102.3ft-lbswithastandarddeviationof9.4ft-lbs.TheanalysisconcludedthisaverageUSEvalueof102.3ft-lbs.isapplicablefortheStLucieUnit1welds2-203A,B,C.SincetheresponsetoGL92-01,abetterestimateforCuandNihasbeendevelopedforwelds2-203A,B,C.TheweldprocesswasasinglewireprocesswithouttheuseofadditionalNiwire.Twowireheatsandfluxlots(Table1)wereusedindicatingachangeduringfabricationtoanotherheat/lotcombination.AnanalysisofthebestestimatesofgenericdataforthetimeperiodforthesetypesofwireswasperformedbyCE+.Thisanalysisconcludedthatthebestestimate(meanplusonestandarddeviation)CuandNivaluefortheA8746welddepositsand34B009welddepositsare0.16%Cuand0.194Curespectivelyand0.10%Niforbothwelds.Sincetheexactlocationoftheweldwireswitchisnotknown,theconservativelyhigh0.194Cuand0.104Nivaluesareconsideredthebestestimatevaluesfortheintermediatelongitudinalwelds(2-203A,B,C)andwillbeusedtomakethedecreaseinUSEvalueprojections.Thenewchemistryvaluesdonotsignificantlyeffecttheembrittlementpredictionsfortheseweldsastheyaretheleast"limiting"ofalltheSt.LucieUnit1beltlinewelds.TheresponsetoGL92-01reportedthatFPLhasidentifiedtheBeaverValleyUnit1surveillanceweldwasfabricatedbythesamevendor(CE)usingtheidenticalweldwireheatandfluxlotastheSt.LucieUnit1lowerlongitudinalwelds(3-203A,B,C).TheBeaverValleysurveillanceweldchemicalanalysisandtheCEqualificationchemicalanalysisaretheonlytwoknownsourcesofwelddepositdataforthisweldwireandfluxlotaccordingtotheEPRIRMATCHdatabase.AmeanvalueofCu,Ni,P,andSareprovidedinTable1asthenewchemistryvaluesforthisweld.ThechemistryandCharpyUSEvaluesforallthebeltlineplatesareshowninTable2.Onlythe"limiting"surveillanceplatewasreportedintheresponsetoGL92-01<'>.UsingtheCuandUSEvaluesfromTable1andtheSt.LucieUnit1conservativemaximumendoflicense(EOL)1/4Tvesselfluence(actualazimuthalfluenceislessattheselongitudinalweldlocations),thewelds2-203A,B,Cwillnotfallbelowthe10CFR50AppendixG,50ft.-lb.,limitwithinthelicenselife.

I ThenewmeanCuvalueof0.28wt4,doesnoteffectthepreviousEOLUSEprojectionforthelimiting3-203A,B,CweldsbecausetheprojectionlineforthenewCuvalueisattheupperlimitonR.G.1.99Rev.2,Figure2.TheprojectedEOLUSEdoesnotfallbelowthe10CFR50AppendixG,50ft.-lb.,limitwithinthelicenselife.ThesamecalculationwasperformedfortwobeltlineplatesthathavethehighestCuvalueandlowestUSEvaluesfromTable2.Usingthesevaluesandthemaximum1/4Tvesselfluence,thebeltlineplateswillnotfallbelowthe10CFR50AppendixG,50ft.-lb.,limitwithinthelicenselife.Belowaretheendoflife(EOL)USEprojectionsforStLucieUnit1reactorvesselbeltlinewelds2-203A,B,C;3-203A,B,C;andthelowestpredictedUSEbeltlineplates.MaterialInitialUSEft-lb(Transverse)'%uEOL1/4TFluence(n/cm)RegGuide1.99Rev2%ReductionEOLUSEft-lbIntermediateshelllongwelds(2-203AiB,C)Lowershelllongwelds(3-203AgB,C)Intermediateshellplatec-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.1indicatedthattheunirradiatedUSEforthelimitingSt.LucieUnit1beltlineplate,C-8-2,is103ft.-lb.takeninthetransversedirection.Thedatawasobtainedfromthebaselinesurveillanceprogramlimitingplate.Thespecimenswereorientedtoprovidetransversedata.Thisvalueisalsoreportedonpages61and80ofTR-F-MCM-004().Pages57and58ofthesamereportthattheRequestforAdditionalInformationrefersto,isforirradiateddata.Sincethe103ft.-lb.valuereportedintheGL92-01responseiscorrect,noupdatedprojectionofendoflicenseUSEisnecessary.AchangetotheFSARwillbemadetoreflectthisnewdata.Attachment3isthechangetotheTechnicalSpecificationBasespage.

TABLE1ST.LUCIEUNIT1REACTORVESSELBELTLINEWELDMATERIALWELDLOCATIONIntermediateShellLongSeam(2-203A,B,C)LowerShellLongSeam3-203A,B,CIntermediatetoLowerShellGirthSeam(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-NotAvailablea-GenericdataforCEsubmergedarcweldsusingLinde0091,1092and124Fluxper10CFR50.6b-SurveillanceProgramData+c-BestestimatedCuandNicontent(lownickeltypewire)@d-MeanvalueofwelddepositdatafromCEqualification<@andtheBeaverValleySurveillanceWeld@.

TABLE2ST.LUCIEUNIT1REACTORVESSELBELTLINEPLATEMATERIALPLATELOCATION'tCu%NiDROPWEIGHTTEST(0F.)NDT('F-)MINIMUMLONGITUDINALCHARPYUSE(FT-LBS)TRANSVERSECHARPYUSE()(FT-LBS)IntermediateShellHeatNo.A4567-1CodeNo.C-7-1IntermediateShellHeatNo.B9427-1CodeNo.C-7-2IntermediateShellHeatNo.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)Calculatedvalueusing65%oflongitudinalspecimendataperMTEBPosition5.2Paragraph1.2b)SurveillanceProgramData()(averageUSEData)

)8 REFERENCELIST(1)FPLLetter,L-92-189,St.LucieUnits1and2DocketNo.50-335and50-389,GenericLetter92-01,Revision1,Response,PTLimitsandLTOPAnalysis,W.H.BohlketoNRC,July7,1992(2)"UpperShelfEnergyInformationPertainingtotheSt.LucieUnit1andUnit2ReactorVesselWelds",ABB-CombustionEngineering,F-MECH-93-050/L-MECH-93-015,September28,1993(3)"CEOG,"ProgramtoEvaluateChemicalContentofWeldDepositsFabricatedUsingHeatsA8746and34B009",CombustionEngineeringOwnersGroup,February1993,CENPSD-906-PandCENPSD-906-NP(4)"FloridaPower&LightCo.St.LucieUnit1PostIrradiationEvaluationofReactorVesselSurveillanceCapsuleW-97",CombustionEngineering,Inc.,December1983,TR-F-MCM-004(5)"EvaluationofPressurizedThermalShockEffectsDuetoSmallBreakLOCA'swithLossofFeedwaterfortheCombustionEngineeringNSSS",CombustionEngineeringOwnersGroup,December1981,CEN-189andCEN-189AppendixF(6)FPLLetter,L-77-308,St.LucieUnit1ReactorVesselMaterialInformation,R.E.UhrigtoD.K.Davis,NRC,September30,1977(7)"FloridaPower&LightCo.St.LucieUnit1EvaluationofBaseLineSpecimens",CombustionEngineering,Inc.,October1984,TR-F-MCM-005(8)"FloridaPower&LightCo.,St.LucieUnit1UpdatedFinalSafetyAnalysisReport",Amendment11,Chapter5.0(9)"AnalysisofCapsuleWfromDuquesneLightCo.BeaverValleyUnit1ReactorVesselRadiationSurveillanceProgram",WestinghouseElectricCorp.,November1988,WCAP-12005 St.LucieUnits1and2DocketNo.50-335and50-389GenericLetter92-01Revision1ResponsetoRequestforAdditionalInformation(RAI)ATTACHMENT2RESPONSEFORST.LUCIEUNIT2OriinalGL92-01uestion2.aCertainaddresseesarerequestedtoprovidethefollowinginformationregardingAppendixGto10CFRPart50:AddresseesofplantsforwhichtheCharpyuppershelfenergyispredictedtobelessthan50foot-poundsattheendoftheirlicensesusingtheguidanceinParagraphC.1.2orC.2.2inRegulatoryGuide1.99,Revision2,arerequestedtoprovidetotheNRCtheCharpyuppershelfenergypredictedforDecember16,1991,andfortheendoftheircurrentlicenseforthelimitingbeltlineweldandtheplateorforgingandarerequestedtodescribetheactionstakenpursuanttoParagraphsIV.A.1orV.CofAppendixGto10CFRPart50.uestion2.ainGL92-01RAITheresponseindicatesthattheinitialUSEvaluesforallbeltlinewelds,exceptforthesurveillanceweld,arenotknown.EitherprovidetheCharpyUSEvaluesforeachbeltlineweldwithnodocumentedinitialUSEvalueorprovidetheCharpyUSEandanalysisfromweldsthatwerefabricatedusingthesamevendor,fabricationtimeframe,fabricationprocess,andmaterialspecificationtodemonstratethatallbeltlineweldswithnodocumentedinitialUSEvalueswillmeettheUSErequirementsofAppendixG,10CFR50.Ifthiscannotbeprovided,thensubmitananalysiswhichdemonstratesthatlowervaluesofUSEwillprovidemarginsofsafetyagainstfractureequivalenttothoserequiredbyAppendixGoftheASMECode.TheresponseindicatesthattheinitialUSEvalueforthelimitingplate,M-605-1,is105ft-lb.ThestaffbelievesthatthisinitialUSEvalueof105ft-lbisfromlongitudinalCharpyspecimens,mistakenlyreportedasfromtransverseCharpyspecimens.Theplant'sTechnicalSpecificationssupportthisconclusion,whereallUSEvaluesinTableB3/4.4-1werelabelledas"longitudinal,"andtheleastUSEvaluerecordedtherewas91ft-lbforplateM-4116-1.The"transverse"USEvalueforplateM-4116-1,afterapplyingafactorof0.65,is59.2ft-lb.ConfirmthisandupdatetheEOLUSEvalueforthisnewlimitingplate.IftheupdatedEOLUSEisbelow50ft-lbbasedonNRCcriteria,thensubmitananalysiswhichdemonstratesthatlowervaluesofUSEwillprovidemarginsofsafetyagainstfractureequivalenttothoserequiredbyAppendixGoftheASMECode.

ICM ResonsetoRAIuestion2.a.TheinitialresponsetoGenericLetter92-01+indicatedthatalltheStLucieUnit2uppershelfenergy(USE)valuesforthebeltlineweldsandplateswereknownandreportedintheStLucieUnit2FSAR").Table1isasummaryofallthebeltlinewelddatafromtheTables5.2-6and5.2-7aoftheFSAR.Theintermediatetolowershellgirthseam(101-171)isthemostlimitingweldforpredictionsofUSEatendoflicense(EOL).Table2isasummaryofallthebeltlineplatedatafromtheTables5.2-5and5.2-7oftheFSAR.The"limiting"beltlineplatewithrespectstoshiftinRTND~istheM-605-1plateandiscontainedintheSt.LucieUnit2ReactorVesselSurveillanceProgram.ThemostlimitingbeltlineplatefromanUSEprospectivewouldbethelowershellplateM-4116-1with91ft-lbsUSEinthetransverseorientation.UsingthedatafromTables1and2,themaximumvesselfluenceandtheRegulatoryGuide1.99,Revision2predictionforCharpyUSE,allthebeltlineweldsandthemostlimitingbeltlineplate(USEperspective)donotfallbelow50ft.-lbsUSEatorbeforetheendofthecurrentoperatinglicense.BelowisatableshowingthepredictedendoflicenseUSEatthe1/4Tlocationforthebeltlineweldsandthelimiting(USE)beltlineplaterequestedintheRAI.MaterialPlateM4116-1Inter.ShellLongSeams(101-124A,B,C())LowerShellLongSeams(101142AgBgC)IntermediatetoLowerShellGirthWeld(101-171)InitialUSEft-lb(Transverse)9111613696(')%Cu0.060.040.050.07EOL1/4TFluence(n/cm)1.83x10191.83x10~91.83x10~91.83x10~9RegGuide1.99Rev2%reduction222222'tEOLUSEft-lb719010675LowestUSEvalueofthetwoweldwiresusedtofabrictethisseam.TheUSEvaluesreportedfortheStLucieUnit2beltlineplatematerialsaretransverseCharpyvalues.Section5.3.1.5oftheFSAR+indicatesthatthebeltlinematerialwastestedintheweak(transverse)directionandreportsthatthelowestplateUSEvalueis91ft-lbs.AsearchofthereactorvesselfabricationdatapackageverifiedthatthevaluesreportedintheFSARandTechnicalSpecificationBasesaretransversedata.AcopyoftheCMTRfortheplateinquestionisshowninFigure1withtheheatcodeandtestdirectionnoted.AchangetotheFSARwillbemadetoreflectthedataastransverse.Attachment3isthechangetotheTechnicalSpecificationBasespages.

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)LowerShellLongSeam101-142CIntermediatetoLowerShellGirthSeam(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.)TRANSVERSECHARPYUSE(FT-LBS)IntermediateShell(M405-I)IntermediateShell(M%05-2)IntermediateShell(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).5O,l'III'll:hJll)IIilli'0)J)Itl:VISIJO)J))I:2-10-75'-P3I'lg0!)EOIITRACTll(A7II72S.ukl!nn~!'trr.lC:n.IOIIRO.72OIM2-OIIIll0307-7COOCNO,M-4))G-)220-3/I"X99-9/1G"X9-11/1G>>l.owerShellLIILI.CIII'I!II:AI.AIIAI.YGIG75Cil)LICCIIAIIIChI.1I.ST5JTrf.~Jt<<23A430002!22EE-TA.505IC5TItc.CAUOCTC5TTCUI'LRATIISICofA.T.TICLOSTRCIA~>>TIIAKSI67UL'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'FAOOITIOIIALOAT*RICLUOIIIOIIKATTRCAT!2CIITIi(-(a)1600'Fa25'F4hours.Waterquenched.(b)122Fa25'F4hours.(c)1150'Fk50'F40hourJurnaco~co)cdtoG00'F.ThcImpactswerctakentransversetothemaiorrollingdlrcctlonoJtheplateatthe1/42Tlcvclandnotchedpcrpcndlculartothcplatesurface.ThedropwclghtandtcnsllcsvicrctakentransversetothomaJorrollingdlrcctlon.TestingwnsdoneInaccordancevf1thMf,PSpcclllcatlonN-5.5.2.11(b).Add.1(a).Fott<<CII50I:c:P~Webbll.DlnwlddleT.U.lvlarstonS.A.LcvflIt.C.Jara!!tf.,Jr,LoLRTOLORttttlftLottl>>Iottlot<<0Jotolt~ttwOOOOol!LOAt~IAO<<ltl>>(OSLftl>>IMOJWI<<SPOIIASOJOT~SP~ttltlth!IIO>>I~tttOot122>>>>l!<<tl>>CO<<AOSttO>>llotOIIIRSttOILOtOTOOOMO.COUOUST!fAIrlmRLCRRIO,lttc.OTAfnoIIIIth~ganuarst31~1975Figure1:StLucieUnit2BeltlinePlateM4116-1CertifiedMaterialTestReport(CMTR)

REFERENCELIST(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",Amendment8,Chapter5.0(3)"AnalysisofCapsuleW-83,FloridaPower&LightCo.,St.LuciePlantUnit2",Babcock&Wilcox,September1985,BAW-1880 St.LucieUnits1and2DocketNo.50-335and50-389GenericLetter92-01Revision1ResponsetoRequestforAdditionalInformation(RAgATTACHEMENT3TECHNICALSPECIFICATIONBASESCHANGESUNIT1PAGEB3/44-9UNIT1PAGE3/44-10UNIT2PAGE3/44-9 St+ucieUnits1and2DocketNo.50-335and50-389'enericLetter92%1Revision1FPLLetterL-93-286AttachmentAFFIDAVITPURSUANTTO10CFR2.790CombustionEngineering,Inc.)StateofConnecticut)CountyofHartford)SS.:I,S.A.Toelle,deposeandsaythatIamtheManager,NuclearLicensing,ofCombustionEngineering,Inc.,dulyauthorizedtomakethisaffidavit,andhavereviewedorcausedtohavereviewedtheinformationwhichisidentifiedasproprietaryandreferencedintheparagraphimmediatelybelow.IamsubmittingthisaffidavitinconjunctionwiththeapplicationofFloridaPower&LightCompanyinconformancewiththeprovisionsof10CFR2.790oftheCommission'sregulationsforwithholdingthisinformation.Theinformationforwhichproprietarytreatmentissoughtiscontainedinthefollowingdocument:CENPSD-906-P,"GEOGProgramtoEvaluateChemicalContentofWeldDepositsFabricatedUsingHeatsA8746and34B009,"February1993.Thisdocumenthasbeenappropriatelydesignatedasproprietary.IhavepersonalknowledgeofthecriteriaandproceduresutilizedbyCombustionEngineeringindesignatinginformationasatradesecret,privilegedorasconfidentialcommercialoffinancialinformation.Pursuanttotheprovisionsofparagraph(b)(4)ofSection2.790

&f,t4Ls~J'"~II PROPRIETARYINFORMATIONThisDocumentcontainsproprietaryinformationandisnottobetransmittedorreproducedwithoutspecificwrittenapprovalfromCombustionEngineering,Inc.CopyNo.6SCENPSD-906-POMBUSTtONENGINEERINGOWNERSGROUPCEOGPROGRAMTOEVALUATECHEMICALCOXIKNTOFWELDDEPOSITSFABRICATEDUSINGHEATSAS746AZ'6)34B009CEOGTASK747'f0CFR2.790fNFORMATlONEXEMPTFROMDISCLOSuREPreparedfortheC-EOWNERSGROUPFebruary1993ABBCombustionEnaineeringNuclearPowerP..93113000698D,QD(IDliQQDQDASEABROWNBOVERI IIiwary.)'IIPI CombustionEngineering,Inc.ProprietaryInformationTABLEOFCONTENTSSectionNo.Title~PaeIntroductionBackgroundScopeIVVVIResultsConclusionsReferences10 IQ/iiI4III CombustionEngineering,Inc.ProprietaryInformationLISTOFTABLESNumberTitle~Pae'NickelContentforCoiledWireElectrodeWeldDepositsWeldSeamsandConsumablesUsing[Adcom]Heat¹A8746CopperAnalysisResultsforWeldWireHeat¹A8746WeldDepositCopperContentfor[Adcom]WireHeats1213WeldSeamsandConsumablesUsing[ReidAvery]Heat¹34B00915'opperContentAnalysisResultsforWeldWireHeat¹34B009WeldDepositNickelContentwithColdNickelFeedNickelContentforHeat¹34B009withColdNickelFeedandLinde1092Flux161718BestEstimateCopperandNickelContentforVesselWelds19 I~4=f"IIIv~4CP,I CombustionEngineering,Inc.ProprietaryInformationI.INTRODUCTIONThisreportpresentstheresultsofataskundertakenfortheCombustionEngineeringOwnersGroup(CEOG)toprovidethebasisforthecopperandnickelcontentofreactorpressurevesselweldsmadeusingtwospecificheatsofweldwire.TheseheatsarecommontobeltlineweldsinseveralreactorvesselsfabricatedbyABB/CEinChattanooga,Tennessee.Theas<epositedweldswerenotalwaysanalyzedexplicitlyforcopperornickelduringfabricationbecausethesignificanceofthosechemicalelementstoirradiationembrittlementwasnotthenrecognized.Subsequenteffortsto.estimatetheas-depositedweldchemistryfromlimiteddatasometimeshaveresultedindifferentvaluesforthesameweldconsumables.Thepurposeofthisevaluationistoutilizeabroadsetofchemicalanalysisresultsinconjunctionwithinformationfrommaterialspecificationstoestablishaconsistentandviablebasisfortheas-depositedweldchemicalcontentforfourspecificreactorpressurevesselsinvolvingtwoheatsofweldwire.II.BACKGROUNDSubmittalsweremadeinDecember1991totheNuclearRegulatoryCommission(NRC)inresponseto10CFR50.61,"FractureToughnessRequirementsforProtectionAgainstPressurizedThermalShock(PTS)Events"(FederalRegister,v.5694,page22304,May15,1991).TheNRCexpressedconcernregardingtheconsistencyandcredibilityofdatausedasthebasisforPTSsubmittals,especiallywithrespecttochemicalcontent.Twoormorelicenseeshavereporteddifferentcopperornickelcontentsforreactorvesselweldsforwhichanidenticalheatofweldwirewasused.Thesedifferencesaroseinpartbecauseofthewaymultipleanalyseswerehandled,thetypeofestimationmethodsusedbylicensees,orthedegreetowhichdatatraceabilitywasestablished.

IIIIII CombustionEngineering,Inc.ProprietaryInformationThePTSsubmittalofoneCEOGlicenseewasquestionedbytheNRCregardingthecopperandnickelcontentofavesselbeltlineweldformedusingweldwireheatnumberA8746.ThissameweldwireheatwasalsousedfortwootherCEOGlicensees'esselbeltlinewelds.Thesamecoppercontent(asinglemeasurement,notanaverage)wasreportedbyallthreelicensees,butdifferentnickelcontentswerereported.Aninitialresponsetothequestionwaspreparedbasedonareviewoffabricationrecords,proceduresandspecificationsasdescribedintheresultssection.ThisreportbuildsuponthatinitialreviewusingchemicalanalysisdatarepresentativeofweldwirespecificationsandweldproceduresemployedbyABB/CE.NRCguidancefordeterminationofcopperandnickelcontentiscontainedin10CFR50.61,"FractureToughnessRequirementsforProtectionAgainstPressurizedThermalShockEvents".Fouralternativesareavailabletoobtainbestmtimatecopperandnickelvaluesfortheplateorforging,orforweldsamplesmadewiththeweldwireheatnumberthatmatchesthecriticalvesselweldasfollows:(1)(2)(3)(4)Themeanofthemeasuredvalues,or,ifthesevaluesarenotavailable,theupperlimitingvaluesinthematerialspecificationstowhichthevesselwasbuilt,orifnotavailable,conservativeestimates(meanplusonestandarddeviation)basedongenericdatafromreactorvesselsfabricatedinthesametimeperiodtothesamematerialspecifications,ifjustificationisprovided.Ifnoneofthefirst3alternativesareavailable,0.35%copperand1.0%nickelmustbeassumed.Theprecedingguidancewasemployedinthisevaluation.-2-I,lII+c~I~lII CombustionEngineering,Inc.ProprietaryInformationIII~SCOPETheobjectiveofthisevaluationistoprovidebestestimatevaluesofcopperandnickelcontentforwelddepositsproducedusingthefollowingmaterials:2.3.[AdcomHiMnMo]weldwireheatA8746andLinde124fiux[ReidAveryHiMnMo]weldwireheat34B009andLinde124or1092flux[ReidAveryHiMnMo]weldwireheat34B009withNi-200coldwirefeedandLinde1092fluxTheprecedingmaterialswereusedtofabricatereactorvesselbeltlineweldsinCalvertCliffsUnit2,St.LucieUnit1,MillstoneUnit"1,andMillstoneUnit2.The.guidelinescontainedin10CFR50.61arefollowedtoprovidethosebestestimates.TheapproachtakenistoreviewABB/CEweldingproceduresandspecifications,tocollectchemicalanalysisresultsspecifictothethreeweldmaterialsnoted,andtocollectchemicalanalysisresultsforcomparableandcontrastingweldmaterials.Thisinformationisthenevaluatedtodeterminethebestestimatevaluefor:2.3.thenickelcontentof[HIMnMo]wirewelddeposits,specificallyheats¹A8746and34B009,thecoppercontentof[Adcom]wirewelddeposits,specificallyheat¹A8746thecoppercontentof[ReidAvery]heat¹34B009.welddeposits,andthenickelcontentof[ReidAvery]heat¹34B009plusNi-200coldwirefeedwelddeposits.Inthisevaluation,chemicalanalysisresultswereobtainedfromwelddepositsfabricatedusingLinde0091,1092,124and80fluxes.ThetoughnesspropertiesofweldsmadeusingLinde0091,1092and124fluxeshavebeenpreviouslyshowntobe-3-sh~Ka.1I8~r~LI1m'tC+~r~.wlII CombustionEngineering,Inc.ProprietaryInformationcomparable'".[Fluxtypeisknowntoaffectcertainchemicalelements,butnickelandcoppercontentsinthewelddeposithavenotbeenfoundtobesubstantiallyaffectedbyfiux'ypeforLinde0091,1092and124foragivenheatofweldwire"'.]ThereisinsufficientinformationfromABB/CEfabricationrecordstodrawsimilarconclusionsregardingLinde80fluxwelds.Therefore,copperandnickelanalysisresultsfromLinde80fluxweldswillbeconsideredforinformationonly.IV.RESULTS1.WeldingProceduresandSpecificationsABB/CEfabricatedmanyreactorpressurevesselsusingautomaticsubmerged.arcwelding.[TypeMil-B4electrodewirespecifications(seeMIL-E-18193A,MilitarySpecification,"Electrodes,Welding,CarbonSteelandAlloySteel,Base,Coiled,"July23,1957)wereusedasthebasisforABB/CEprocurementofthefillerwire.Inthisreport,theterminology"wiretype"isusedtorepresentthebroadclassificationofweldfillermaterial:Mil-B4ofMil-B4Modified(Mil-B4Mod).Theterminology"specification"isusedtorepresentIthespecificclassificationofweldfillermaterial:HIMnM,MnMoNi,MnMo,orLowCu-P.Theterminology"supplierdesignation"isusedtorepresentthespecificcompositionalclassificationofwireprovidedbythesuppliertomeettheCEspecification:HiMnMo,MnMoNiorLowCu-P.ABB/CEpurchasespecificationsinplacebetween1965and1971calledforseveralgroupsofcoiledelectrodesdifferentiatedbythemanganese(Mn),molybdenum(Mo)andnickel(Ni)content:k~WireTeMil-B4ModMil-B4ModMil-B4Mil-B4ModMil-B4ABB/CES~HiMnMoMnMoNiMnMoMnMoNiLowCu-PSpecifiedNickelContent0.90to1.10%0.65to0.85%Supplier~DesinationHiMnMoMnMoNiHiMnMoMnMoNiLowCu-P-4 LIIIIlI CombustionEngineering,Inc.ProprietaryInformationOnly'nthecaseofthewiredesignationMnMoNiwasanynickelrequired(specifiedbyCE)tobeincludedinthewire.NotealsothatMil-B4ModifiedwasoriginallyspecifiedbyCEaseitherHiMnMoorMnMoNi.Insubsequentspecifications,Mil-B4ModifiedreferredonlytoMnMoNiwireswithnominally0.75%or1.00%nickel,andMil-B4referredonlytoHiMnMo,MnMo,orLowCu-Pwireswhichallhadnonickelspecified.Thesuppliersofcoiledwireelectrodestypicallyusedthedesignationsasindicatedaboveontheircertiftcations.Suppliercertificationsandweldmaterialreleasereports(generatedbyABB/CEuponreceiptofthewire)includednickelcontentonlyfortheMnMoNiwires,i.e.,thenickelwasdeterminedonlywhereitwasspecified.Weldmaterialcertificationtests(welddeposits)andactualvesselwelddepositanalysesgenerallyincludedananalysisfornickelonlywhenMnMoNiwireswereutilizedorwhenthevesselequipmentspecificationcalledforanickelanalysis,Nickelwasnotintentionallyaddedtoaheatbecauseoftheextraexpensetothewiresupplier.Therefore,thenickelcontentforaHiMnMooraMnMowireisexpectedtobelow(significantlylessthan0.75%).]2.ObservedNickelContentof[HiMnMoandMnMoNi]CoiledWireElectrodeWeldDeposits[ThenickelcontentofweldsdepositedusingHiMnMoheats"¹A8746and¹34B009isnotavailablefromABB/CEwelddepositanalysisrecords.However,nickelcontentwasdeterminedforotherHiMnMoheatsandformanyMnMoNiheats.[Note:weldsfabricatedusingaNi-200coldwireadditionarenotincludedinthediscussionwhichfollows.]Asearchwas"performedofABB/CEweldreceiptandwelddepositanalysisrecordsfortheyears1965to1971,andalistwascompiledofeachanalysisthatincludednickelcontent.Foreachanalysiswithareportedvalueofnickel,thesupplier-5-I(I*.Pi~tigi'Y,pI CombustionEngineering,Inc.ProprietaryInformationdesignationandwiresupplierisnotedasshowninTableI;multipleanalysesonasingleheataregroupedtogether.Themeanandstandarddeviationsdescribedbelowarebasedontheaveragenickelforeachheat,whereastherangesreflectallreportednickelvalueswithineachsetofwires.TheMnMoNiwiresfallwithintworangesofnickel,0.59to0.82%Niand0.89to1.10%Ni.Thecorrespondingmeanandstandarddeviationare:mean=0.706%Ni,o'0.051%Nimean=0.990%Ni,u=0.069%NiThesecorrespondwelltothetwospecificationlevelsof0.75%and1.00%Nidiscussedintheprevioussection.FortheHiMnMowires,nickelcontentisintherangeof0.01to0.16%.Themeannickelvalueforthe16heatsis0.058%withastandarddeviationof0.037%Ni,ItisclearfromtheHIMnModatathatnickelwasnotintentionallyaddedtotheoriginalheatsfromwhichtheelectrodewiresweredrawn.Therefore,fortheHiMnMoheats¹A8746and¹348009,aconservativebestestimate(meanplusonestandarddeviation)ofthenickelinthewelddepositis0.10%Ni.]3.CopperContentofWeldDepositsUsingWireHeat¹A8746[Weldwireheat¹A8746,aHiMnMocoiledelectrodesuppliedbyAdcom,wasusedtofabricatetheweldseamsdescribedinTable2.Ineachcase,thesubmergedarcweldingwasperformedusingLinde124flux.Twoseparatewelddepositchemicalanalyseswereperformedwhichinvolvedheat¹A8746asdescribedinTable3.OnlyoneoftheanalysesrelatesdirectlytothefourwelddepositslistedinTable2.Eachofthevesselweldswere-6-III~

CombustionEngineering,Inc.ProprietaryInformationdepositedusingLinde124flux,whereasonlyoneofthechemicalanalysesreflectedaLinde124fluxweld.Therefore,theLinde80welddepositanalysiscanonlybeusedforinformation.TheLinde124fluxwelddepositanalysisresultedinacoppercontentof0,12%usingAdcomweldwireheatA8746.Inordertojudgetheviabilityofthe0.12%coppervalue,acompilationwasmadeofwelddepositcoppercontentsofotherAdcomheatswhichisgiveninTable4.Treatingeachcopperanalysisasindependent(i.e.,assumingthateachreflectsresultsfromauniquecoil),themeancoppercontentis0.20%,thestandarddeviationis0.036%,andtherangeis0.12to0.27%.Thedataincludesevendifferentheatsorcombinationsofheats,fourdifferenttypesofflux,twodifferentwirespecifications,anda29monthtimeperiodoverwhichwirewasprocuredandanalyseswereperformed.Therefore,the0.036%standarddeviationforcopperreflectsheat-to-heatandcoil-to-coilvariationsaswellastheinfluencetofweldfluxandthetimedependenceofthecoppercoatingprocessonwelddepositcoppercontent.Inotherwords,sincethestandarddeviationrepresentsmanyAdcomwireheatsandotherfactors,the0.036%copper(onestandarddeviation)shouldconservativelyrepresentthecoppervariabilityofweldsdepositedusingasingleheatofAdcomwire,heatPA&746.ComparisonofthedatafromTable3andTable4indicatesthattherangeofavailablemeasurementsspecifictoheatPA8746,0.12to0.17%copper,iswithintherangeofthesevendifferentAdcomsuppliedheatsandcombinationsofheats.Furthermore,themeanofthetwoA8746analyses,0.145%Cu,iswithinonestandarddeviationofthesingleLinde124welddepositanalysis(0.036%plus0.12%equals0.156%Cu).Therefore,aconservativebest-7-It,eLI CombustionEngineering,Inc.ProprietaryInformationestimateofthecoppercontentoftheweldsdescribedinTable2is0.16%basedontheheat-specificmeasurementandthestandarddeviationforgenericAdcomwireheatdata.]4.CopperContentofWeldDepositsUsingWireHeat¹348009[Weldwireheat¹348009,aHiMnMocoiledelectrodesuppliedbyReidAvery,wasusedtofabricatetheweldseamsdescribedinTable5,ThesubmergedarcweldingwasperformedusingeitherLinde124orLinde1092flux.Ninechemicalanalysesinvolvingheat¹348009aredescribedinTable6.Thefirsttwoentriesarelaboratoryexperimentresultsand,therefore,arenotrepresentativeofproductionwelddeposits.FourentriesareanalysisresultsfromsamplesextractedfromaH.B.RobinsonUnit2(HBR-2)reactorvesselheadweld.ThreeentriesareanalysisresultsfortheMillstoneUnit1(MP-1)surveillanceweldperformedforEPRIandGeneralElectric.ThesevenrepresentativemeasurementswerefromweldsdepositedusingLinde1092flux,andthetwoexperimentalanalysisresultswerefromweldsdepositedusingLinde1092orLinde124.TheLinde1092fluxwelddepositanalysesresultedinameancoppercontentof0.19%.ThismeanofmeasuredvaluesisdirectlyapplicabletotheMillstoneUnit1welddescribedinTable5.Giventhattheweldfluxdoesnotaffectthecoppercontentsignificantly(seeSectionIII),the0.19%meancopperisalsoapplicabletotheSt.LucieUnit1welddescribedinTable5whichwasdepositedusingLinde124flux.]5.NickelContentofWeldDepositsUsingWireHeat¹348009andaColdNickelWireFeed[TheMillstoneUnit1welddescribedinTable5wasfabricatedusingacoldnickel-8-fI~~tIr~v~1'dI ICombustionEngineering,Inc.ProprietaryInformationwirefeedinadditiontotheelectrodewireheat¹34B009.Therefore,thenickel4contentofthatweldwouldbegreaterthannormalforaHiMnMowirewelddepositwithoutthenickelfeedwire(asdiscussedinSectionIV.2).Table7presents24setsofdataonthenickelcontentofweldsdepositedusingRACO-3(ReidAvery)wires,Ni-200wire(coldnickelfeed)andLinde1092flux.Onlytwodifferentwireheats,singlyorintandem,wereused.Themeannickelcontentis1.065%andtherangeis0.72%to1.21%Ni.Table8presentsnickelcontentassociatedwiththeTable6datainwhichheat¹34B009wasusedwithNi-200wireandLinde1092flux.Allbuttwoofthenickelcontentsspecifictoheat¹34B009arewithintherangeofthedatafromTable7.TheaverageofthethreeMP-1surveillanceweldvaluesis0.94%Ni,andtherangeis0.81to1.03%Ni.TheaverageoftheMP-1andthetwoin-rangeHBR-2valuesis0.88%Ni,andtherangeis0.75to1.03%Nifortheweldsdepositedwithheat¹34B009.The0.88%Nirepresentsthemeanofmeasuredvaluesforwelddepositsformedusingheat¹34B009withacoldnickelwirefeed.However,giventhehighermeanofthegenericdata(Table7),amoreconservativeestimateoftheheat-specificweldnickelcontentis1.03%,theupperboundofthedatafromTable8.]V.CONCLUSIONSPVeldsdepositedbyCombustionEngineeringusingHiMnMocoiledwireelectrodesyieldameannickelcontentof0.058%withastandarddeviationof0.037%.Therefore,aconservativeestimate(meanplusonestandarddeviation)ofnickelcontentinsuchweldsis0.10%Ni.]2.[WeldsdepositedusingAdcomHeat¹A8746(HiMnMo)andLinde124fluxareconservativelyestimatedtocontain0.16%Cuand0.10%Ni.]-9-ItIIIII CombustionEngineering,Inc.ProprietaryInformation[TheweldsdepositedusingReidAveryHeat¹34B009(HiMnMo)withLinde124orLinde1092fluxareestimatedtocontain0.19%Cubasedonthemeanofmeasuredvalues,andconservativeestimatesofnickelcontentare1.03%NiwithaNi-200wireadditionand0.10%NiwithoutaNi-200wireaddition.]ThesebestestimatechemicalcontentsaresummarizedinTable9fortheweldsdescribedinTables2and5.VLREFERENCES1."EvaluationofPressurizedThermalShockEffectsduetoSmallBreakLOCA'swithLossofFeedwaterfortheCombustionEngineeringNSSS,"CombustionEngineeringReportCEN-189,December1981.2."ApplicationofReactorVesselSurveillanceDataforEmbrittlementManagement,"CombustionEngineeringOwnersGroupReportCEN-405-P(DraftRevision2),December1992.-10-l CombustionEngineering,Inc.ProprietaryInformationTABLE1NickelContentforCoiledWireElectrodeWeldDepositsSupplier~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),1.100.89-11-III CombustionEngineering,Inc.ProprietaryInformationTABLE2WeldSeamsandConsumablesUsing[AdcomHeat]PA8746[(HiMnMo)]ReactorVesselCalvertCliffsUnit2St.LucieUnit1MillstoneUnit2WeldSeamNoote12-203A,B,C2-203A,B,C(Note2)2-203A,B,C3-203A,B,CWeldFluxTeLinde124Linde124Linde124Linde124WeldProcedure~SufiSAA-4-0SAA-4-0SAA-4-0SAA-MA-501-2Note1:Note2;Alloftheweldseamslistedweredepositedwithoutacoldnickelwirefeed.Weldwireheat¹34B009[(ReidAveryi]wasalsousedwithheat¹A8746todeposittheweldseamsinasingleareprocess.-12-Il CombustionEngineering,Inc.ProprietaryInformationTABLE3CopperContentAnalysisResultsforWeldWireHeat¹A8746KAdcomHiMnMo)]ofAnalsisDateFlux/LotNo.~CoeuroWeldDepositWeldDeposit.8/27/69Linde124/¹38788/19/69Linde80/¹86510.170.12-13-Iln,l CombustionEngineering,Inc.ProprietaryInformationTABLE4Supplier~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-CombinationoftwoAdcomheatsinwelddeposit-14-IIl CombustionEngineering,Inc.ProprietaryInformationTABLE5WeldSeamsandConsumablesUsing[ReidAvery]Heat¹34B009[(HiMnMo)]eactorVesselWeldSeamNo.WeldFluxTWeldProcedureSNSt.LucieUnit12-203A,B,C(Note1)Linde124SAAMOMillstoneUnit13-073(Note2)Linde1092SAA-33-J(1)Note1:Weldwireheat¹A8746[(Adcom)]wasalsousedwithheat¹34B009todeposittheweldseamsinasinglearcprocess.Acoldnickelwirefeedwasnotused.Note2:Theweldprocessincludedtheadditionofacoldnickelwirefeed.-15-5b~4IllIl CombustionEngineering,lnc.ProprietaryInformationTABLE6CopperContentAnalysisResultsforWeldWireHeat434B009T~IAIITl~TC~CSourceWeldDepositLinde10920.15CELabExperimentWeldDepositWeldDepositLinde124Linde10920.170.180CELabExperimentHBR-2HeadSampleWeldDepositLinde10920.182HBR-2HeadSampleWeldDepositLinde10920.183HBR-2HeadSampleWeldDepositLinde10920.202HBR-2HeadSampleWeldDepositLinde10920.18MP-1SurveillanceWeld(EPRI)WeldDepositLinde10920.19MP-1SurveillanceWeld(EPRI)IIWeldDepositLinde10920.18MP-1SurveillanceWeld(GEReportNEDC-30299)-16-

~~~(gy5~~~~~~

CombustionEngineering,Inc.ProprietaryInformationTABLE7WeldDepositNickelContentwithColdNickelFeedSourceNickelContentoMixedReidAveryHeats,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:Averageof2analysesfromonesurveillanceprogramweld(1.02and1.21%Ni).-17-

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

CombustionEngineering,Inc.ProprietaryInformationTABLE8NickelContentforHeat0'34B009withColdNickelFeedandLinde1092FluxNickelContentSource0.750.320.840.43"0.810.981.03HBR-2HeadSampleHBR-2HeadSampleHBR-2HeadSampleHBR-2HeadSampleMP-1SurveillanceWeld(EPRI)MP;1SurveillanceWeld(EPRI)MP-1SurveillanceWeld(GEReportNEDC-30299)-18-Il~l~~~

CombustionEngineering,Inc.ProprietaryInformationTABLE9BestEstimateCopperand,NickelContentforVesselWeldsReactorVesselCalvertCliffsUnit2WeldSeamNo.2-203A,B,C~ContenteCuNi0.16"0.10St.LucieUnit12-203ABCtt)2-203A,B,Ct')0.160.100.190.10MillstoneUnit22-203A,B,C3-203A,B,C0.160.100.160.10Millstone'nit13-0730.191.03Notese(1)ChemicalcontentcontributionfromwireheatPA8746(2)Chemicalcontentcontributionfromwireheat034B009-19-I~1I~I

,"St.LucieUnits1and2DocketNo.50-335and50-389GenericLetter92%1Revision1FPLLetterL-93-286Enclosure1iLIl)IR~~~meme10CFR2.7SOINFORMATIONEXEMPTFROMDISCLOSURECobololSeptember28,1993F-MECH-93-050.IMECH-93-015Mr.R.ScottBoggsFloridaPower&LightCompanyP.O.Box1400JunoBeach,FL33408-0420

Subject:

UpperShelfEnergyInformationPertainingtotheSt.LucieUnit1and~Unit2ReactorVesselWelds.Appendices:Attachments:A)CertifiedMaterialTestReportsPertinenttoSt.LucieUnit2"AtypicalWeldMaterialInReactorPressureVesselWelds;InformationRequestedbyNuclearRegulatoryCommissionInspection&EnforcementBulletinNo.78-12",PreparedByCombustionEngineeringInc.,datedJune8,1979.

DearMr.Boggs:

Thepurposeofthisreportistoprovideuppershelfenergy(USE)informationonbeltlineweldsforFloridaPowerandLightCompany(FP&L),St.LucieUnits1and2reactorvessels.ThisinformationisrequiredbyFP&LinordertorespondtoaNRCrequestforadditionalinformationassociatedwithGenericLetter92-01(Ref1)asdescribedinReferences2and3.Additionally,twocopiesoftheCombustionEngineeringDocument"AtypicalWeldMaterialInReactorPressureVesselWelds"areincludedasrequestedinReference3.Pleaserecognizethatthisletterreport,includingAppendixA,containsproprietaryinformationandisnottobetransmittedorreproducedwithoutspecificwrittenapprovalfromCombustionEngineering,Inc.TheAttachment"AtypicalWeldMaterialInReactorPressureVessels",isnotproprietarybecauseitwaspubliclyreleasedinthepast.1.0St.LucieUnit1:1.1BarrackroundTheSt.LucieUnit1reactorvesselintermediateshelllongitudinalseamwelds(2-203A,B,C)werefabricatedusingwireheatnumbersA8746and34B009andLinde124Fluxlots3878and3688respectivelybaseduponinputprovidedbyFP&LandrepeatedinReference2.TheinitialCharpyuppershelfenergy(USE)forthisweldwasnotABBCombustionEngineeringNuclearPowerCombustionEngineering,tnc.1000ProspectHitlRoadPostOtficeBox500Windsor,Connecticut060954500Telephone(203)6881911Fax(203)285-9512Tetex99297COMBENWSOR

PROPRIETARYINFORMATIONCOMBUSTIONENGINEERING,INC.Mr.ScottBoggsSeptember28,1993F-MECH-93-050IMECH-93-015Page2of10determinedatthetimeofmanufacture,norissuchdataknowntobeavailablefromothersources(e.g.,surveillanceprogramwelds)fortheaforementionedweldingconsumables.TheNRChasstatedthatanacceptableapproachforsatisfactionof10CFR50,AppendixGrequirementsforinitialUSEistousetheaveragevaluefromsimilarlyfabricatedwelds(Ref1);inthiscase,fromUSEmeasurementsonsubmergedarcweldsproducedusingMIL-B4wireandLinde124Flux.1.2~ScoeThisreportprovidesabasisfortheinitialuppershelfenergyforweldwireheatnumbersA8746and34B009fabricatedwithLinde124fluxusingUSEdatafromweldsfabricatedwithLinde124flux.1,3ProcedureWeldmaterialcertifications(WMC)(Ref4)attheABBCombustionEngineeringfacilityinChattanooga,TennesseeweresearchedtoobtainCharpyimpacttestdataspecifictoLinde124fluxwelds.TheWMCswerecompiledandtheinitialUSEdeterminedfromtheCharpyimpactdatainaccordancewiththedefinitionsprovidedinASTME185-82(Ref5).Theprimarydefinitionsnecessarytoestablishtheuppershelfenergyareprovidedasfollows:1.3.1UpperShelfEnergyisdefinedastheaverageenergyvalueforallCharpyspecimens(normallythree)whosetesttemperatureisabovetheupperendofthetransitionregion.Forspecimenstestedinsetsofthreeateachtesttemperature,thesethavingthehighestaveragemayberegardedasdefiningtheuppershelfenergy(Ref5),1.3.2CharpyTransitionCurveisdefinedasagraphicpresentationofCharpydata,includingabsorbedenergy,lateralexpansionandfractureappearance,extendingoverarangeincludingthelowershelfenergy(<5%shear),transitionregionandtheuppershelfenergy()95%shear)(Ref5).1.3.3TransitionRegionisdefinedastheregiononthetransitiontemperaturecurveinwhichtoughnessincreasesrapidlywithrisingtemperature.Intermsoffractureappearance,itischaracterizedbyarapidchangefromaprimarilycleavage(crystalline)fracturemodetoprimarilyshearfracturemode(Ref5).Charpytestdataforeachweldwireheatandfluxlotcombinationshowingafractureappearanceof95%shearorgreaterwerecompiled.TheCharpyteststendedtobeconductedinsetsofthreeoverarangeoftesttemperatures.Thisallowedeachsetof PROPRIETARYINFORMATIONCOMBUSTIONENGINEERING,INC.Mr.ScottBoggsSeptember28,1993F-MECH-93-950L-MECH-93-015Page3of10threeteststobeaveragedtodeterminetheUSEatagiventemperature.ThehighestaveragedUSEforeachweldwireheatandfluxlotcombinationwastakentobetheinitialUSEforthematerialandusedtodeterminethebestestimate(mean)andstandarddeviationforweldsfabricatedusingLinde124flux.ThisbestestimatecanthenbeusedasinputforprojectingUSEafterirradiation.1.4ResultsCharpyimpactenergydatawasassessedfor68differentweldwireheat/fluxlotcombinationstodeterminetheinitialuppershelfenergyinaccordancewithASTME185-82definitions(Ref5).67USEvaluesrepresentedtheaverageofthreeCharpyimpactspecimensusuallytestedatasingletemperature.TheremainingoneUSEvaluecomes'fromanaverageoftwoCharpyspecimenstestedat100'F.ThisUSEvaluewasjudgedtobeadequateforthepurposesofthisanalysisandwouldnotsignificantlyaltertheresultsifomitted.Allfracturespecimenshaveafractureappearanceshowingnolessthan95%shear.TheaverageuppershelfenergyfortheLinde124fluxweldsis[102.3ft-lbswithastandarddeviationof9.4ft-lbs.]Thedatarangesfrom[82.7ft-lbto125.7ft-lb.]Thisrepresentsanaverageof68differentweldwireheat/Linde124fluxlotcombinationspresentedinTable1.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.ScottBoggsSeptember28,1993PROPRIETARYINFORMATIONCOMBUSTIONENGINEERING,INC.F-MECH-93-950L-MECH-93-015Page4of10Count1213141516171819202122232526272830313233343536373839WireHeat/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 PROPRIETARYINFORMATIONCOMBUSTIONENGINEERING,INC.Mr.ScottBoggsSeptember28,1993F-MECH-93-950L-MECH-93-015Page5of10Count4041424345464748495051525354555657585960616263656667WireHeat/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 PROPRIETARYINFORMATIONCOMBUSTIONENGINEERING,INC.Mr.ScottBoggsSeptember28,1993F-MECH-93-950L-MECH-93-015Page6of10Count68WireHeat/FluxLotPSP73Sg/0342$AverageUSE:StandardDeviation:InitialUSEft-lb97.7102.3(ft-Ib)9.4(ft-ib)2.0St.LucieUnit2:2.1~BackroundTheSt.LucieUnit2reactorvesselbeltlineweldswerefabricatedusingtheconsumablepresentedinTable2baseduponinputprovidedbyFP8rLandrepeatedinReference2.Thebasisfortheinitialuppershelfenergyfortheseweldswasweldmaterialcertificationtestsperformedatthetimeofvesselmanufacture(Ref4).Table2:BeltlineWeldWireConsumableusedinSt.LucieUnit2SeamNo.101-124A,B,C101-124C(Repair)101-142A,B,C101-171101-171WireHeatNo.836428363783637836373P7317FluxTypeLinde0091Linde0091Linde0091Linde124Linde124FluxLotNo.353611221122095109512.2~ScoeWeldmaterialcertificationtestreports(WMCs)forthefollowingweldwireheatandfluxlotsareprovided:Wireheat83642,Linde0091fluxlot3536;wireheat83637,Linde0091fluxlot1122;wireheat83637,Linde124fluxlot0951;andwireheat3P7317,Linde124fluxlot0951.Uppershelfenergyvaluesfortheaforementionedwire/fluxcombinationswillbedeterminedifsufficientinformationispresentedintheWMC.Wherefullyapplicableinformationisnotavailable,thedegreeofapplicabilitywillbeaddressedaspertheprojectproposal(Ref2)~

PROPRIETARYINFORMATIONCOMBUSTIONENGINEERING,INC.Mr.ScottBoggsSeptember28,1993F-MECH-93-950L-MECH-93-015Page7of102.3ProcedureWeldmaterialcertifications(WMC)attheABBCombustionEngineeringfacilityinChattanooga,TennesseeweresearchedtoobtainCharpyimpacttestdataspecifictotheconsumablepresentedinTable2.TheWMCswerecompiledandtheinitialUSEdetermined,whenpossible,fromtheCharpyimpactdatainaccordancewiththedefinitionsprovidedinASTME185-82(Ref5)andpresentedinsections1.3.1-1.3.3.WherefullyapplicableinformationwasnotavailableintheWMC(e,g.,wherepercentshearfracturewasnotreported)thedegreeofapplicabilitytotheUnit2weldseamUSEisaddressed.2.4ResultsWeldmaterialcertification(WMC)reportsfortheweldwireheat/fluxlotnumbercombinationspresentedinTable2wereobtainedfromrecordsinpossessionofCombustionEngineering.TheWMCspertainingtotheLinde124weldscontainedenoughinformationtofullydeterminetheinitialuppershelfenergyvaluesfortheconsumableused.TheWMCspertainingtotheLinde0091weldsdidnotcontainsufficientinformation;however,enoughinformationwasavailabletodetermineaconservative(lowerbound)uppershelfenergyvaluerelevanttotheconsumablesused.AcopyoftheWMCsfortheconsumableslistedinTable2areprovidedinAppendixA,AdescriptionoftheprocessusedtodeterminetheUSEisdescribedforeachweldwireheat/fluxlotcombinationasfollows:2.4.1WireHeat83637,FluxTypeLinde124,FluxLotNo.0951:TheWMCpertainingtothiscombinationofweldconsumablescontainsafullarrayofCharpytestsoverarangeoftemperatures.[TheinitialuppershelfenergywasdeterminedfromasetofthreeCharpyspecimenstestedat160'F.Allthreespecimensshowafractureappearanceof100%shearfailureandtheinitialuppershelfenergycalculatedtobe116.7ft-lb.]2.4.2WireHeat3P7317,FluxTypeLinde124,FluxLotNo.0951:TheWMCpertainingtothiscombinationofweldconsumablescontainsafullarrayofCharpytestsoverarangeoftemperatures.[TheinitialuppershelfenergywasdeterminedfromasetofthreeCharpyspecimenstestedat160'F.Allthreespecimensshowafractureappearanceof100%shearfailureandtheinitialuppershelfenergywascalculatedtobe102.7ft-lb.]2.4.3WireHeat83642,FluxTypeLinde0091,FluxLotNo.3536:TheWMCpertainingtothiscombinationofweldconsumablescontainslimitedCharpytestsattwotest-temperaturesandfractureappearanceisnotrecorded.[Anaverage PROPRIETARYINFORMATIONCOMBUSTIONENGINEERING,INC.Mr.ScottBoggsSeptember28,1993F-MECH-93-950L-MECH-93-015Page8of10Charpyenergyat10'Fwascalculatedfromthreespecimenstobe116.3ft-lbs.]Thisvaluedoesnotrepresentan"official"uppershelfenergyfortheseweldconsumablesbecausenomeasurementofthefractureappearance(i.e.,%shearfracture)isavailable.However,thisvaluesuggestsverygoodfracturetoughnesscharacteristicsforthematerialat10'Fand,therefore,maybeusedasalowerboundapproximationtotheinitialUSE.2.4.4WireHeat83637,FluxTypeLinde0091,FluxLotNo.1122:TheWMCpertainingtothiscombinationofweldconsumablescontainslimitedCharpytestsat10'Fandfractureappearanceisnotrecorded.[AnaverageCharpyenergywascalculatedfromthreespecimenstobe136.3ft-lb.]Thisvaluedoesnotrepresentanofficialuppershelfenergyfortheseweldconsumablesbecausenomeasurementofthefractureappearance(i.e.,%shearfailure)isavailable.However,thisvaluesuggestsverygoodfracturetoughnesscharacteristicsforthematerialat10'Fand,therefore,maybeusedasalowerboundapproximationtotheinitialUSE.

3.0CONCLUSION

S:NoinformationisavailabletodeterminetheinitialuppershelfenergyspecifictotheweldconsumablesusedintheSt.LucieUnit1reactorvessel2-203A,B,Cweldments.Asanalternateapproach,abestestimatevalueofinitialUSEwascalculatedusing68weldsfabricatedwithLinde124flux.ThebestestimateinitialUSEoftheseweldsfabricatedwithMIIB4wireandLinde124fluxwascalculatedtobe[102.3ft-lbwithastandarddeviationof9.4ft-lb.]ThisbestestimatevaluecanbeusedasinputforprojectingUSEafterirradiation.CompleteorpartialinformationisavailabletodeterminetheinitialuppershelfenergyspecifictotheconsumableusedintheSt.LucieUnit2beltlinewelds.WeldmaterialcertificationreportsforthesematerialsareprovidedinAppendixA.Weldwireheat3P7317withLinde124fluxlot0951hasacalculatedinitialuppershelfenergyvalueof[102.7ft-lb.]Weldwireheat83637withLinde124fluxlot0951hasacalculatedinitialuppershelfenergyvalueof[116.7ft-lb.]Weldwireheat83637withLinde0091fluxlot1122hasanaverageCharpyenergyat10'Fof[136.3ft-lb;]weldwireheat83642withLinde0091fluxlot3536hasanaverageCharpyenergyat10Fof[116.3ft-lb.]TheseaverageenergiescanbeconservativelyassumedtobealowerboundapproximationoftheinitialuppershelfenergyforthetwoLinde0091fluxwelds.

PROPRIETARYINFORMATIONCOMBUSTIONENGINEERING,INC.Mr.ScottBoggsSeptember28,1993F-MECH-93-950IMECH-93-015Page9of10Ifyouhaveanyquestionsorconcernsregardingthisinformation,pleasefeelfreetocontactmeat(203)285-3794orSteveByrneat(203)285-3469.Sincerely,COMBUSTIONENGINEERING,INCDaviJ.WoodillaProjectEngineerEnclosureVERlFlCATIONSTATUS:COMPLETEatroSaloty8ctatoddostgnMormatton~tnlhhdooratrtltboaboonverifkdtobocorralbymoansor:DaogogooooogoggcocigslisL'tOAMigLOgosssssOosiogs-Cocoasaccoo.VsllgscilcoTosoos.TossgosagSoo.~PwarcD.Srrrm~n,vIndopondontRoNtowonNarno/SignaturolOato Mr.ScottBoggsSeptember28,1993PROPRIETARYINFORMATIONCOMBUSTIONENGINEERING,INC.F-MECH-93-950L-MECH-93-015Page10of10

References:

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

Subject:

St.LucieUnits1and2-RequestforAdditionalInformation-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,"WeldMaterialCertificationReports",S.T.Byrne,datedOctober14,1993.ASTMDesignationE185-82,"StandardPracticeforConductingSurveillanceTestsforLight-WaterCooledNuclearPowerReactorVessels,"AnnualBookofASTMStandards,Vol.12.02,ASTM,Philadelphia,PA.

Mr.ScottBoggsSeptember28,1993PROPRIETARYINFORMATIONCOMBUSTIONENGINEERING,INC.F-MECH-93-050L-MECH-93-015PageA1ofA10APPENDIXACertifiedMaterialTestReportsPertinenttoSt.LucieUnit2 Mr.ScottBoggsSeptember28,1993PROPRIETARYINFORMATIONCOMBUSTIONENGINEERING,INC.F-MECH-93-050L-MECH-93-015PageA2ofA10ContentsofAppendixA~PaeA4A6A8A10TitleCertifiedMaterialTestReportforWeldWireHeatNo.83637LindeFluxType124,FluxLotNo.0951CertifiedMaterialTestReportforWireHeatNo.3P7317,LindeFluxType124,FluxLotNo.0951CertifiedMaterialTestReportforWeldWireHeatNo.83642,LindeFluxType0091,FluxLotNo.3536CertifiedMaterialTestReportforWeldWireHeatNo.83637,LindeFluxType0091,FluxLotNo.1122.

Mr.ScottBoggsSeptember28,1993PROPRIETARYINFORMATIONCOMBUSTIONENGINEERING,INC.F-MECH-93-050IMECH-93-015PageA3ofA10CertifiedMaterialTestReortforWeldWireHeatNo.83637LindeFluxe124FluxLotNo.0951 Mr.ScottBoggsSeptember28,1993PROPRIETARYINFORMATIONCOMBUSTIONENGINEERING,INC.F-MECH-93-050IMECH-93-015PageA4ofA10"~PQQJFRSYSTEMSToJ.McDowellcc:R.E.Lorentz,Jr.S.R.LewisS.A.LewisB.GoinsSubjectWeldingMaterialCertlficatlonToRequirementsof,ASMESectionIIIJobNumberM-32255ProjectNumber960009'rom-DateMetallurgical&MaterialsLaboratoryChattanooga4-22-76Thefollowingtestdatsfor3/16"dleterbare're,TypeLowCu-Phos,HeatNo.83637,FluxType124,LotNo.09(TestNo.1824).Awelddepositwasmadeusingtheaboveheatofwireandlotofflux.WeldingwasdoneinaccordancewithSAA-SMA-511-0.Thecompletedweldmentwasgivenapostweldheattreatmentof1150'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[69.0UltimateTensileStrenathKS84.3Elongation241n/ReductionofArea%69.2JMA:gb

Mr.ScottBoggsSeptember28,1993PROPRIETARYINFORMATIONCOMBUSTIONENGINEERING,INC.F-MECH-93-050L-MECH-93-015PageASofA10CertifiedMaterialTestReortforWireHeatNo.3P7317LindeFluxTe124FluxLotNo.0951 PROPRIETARYINFORMATIONCOMBUSTIONENGINEERING,INC.Mr.ScottBoggsSeptember28,1993pj444'<<<<I~Žt~".==aPGQfEHSVS7tr.MSF-MECH-93-050L-MECH-93-015PageA6OfA10ToSubjectFrom-DateMetallurgical6,MaterialLaboratoryWeldingMaterialCertificationToRequirementsofASMESectionIIIJobNumberM-322SSProspectNumber960009J.McDowellcc:R.E.Lorentz,Jr.S.R.LewisChattanoogaPhos,HeatNo.3P7317,FluxType124,LotNo.0951.(TestNo.1859)S.A.LewisB.GoinsPROPRIETARYThefollowingtestdatasfor1/8"diaerbarewierypeLowCu-Awelddepositwasmadeusingtheaboveheatofwirealotoffaux.WeldingwasdoneinaccordancewithSAA-SMA-104-0TheciafpletdtfŽweldmentwasgivenapostweldheattreatmentof1150'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>3O726075.6077609710010210099100~111aLatEx101312262520'148S3~51667068-90-80-70-60+100+100+100+160+160+1601F1NF1F2NF1NF94'0093+~100+100<100>9610010410010810066370687379-80'LLWELDMETAL.505TENSILELabCodeYieldStrengtKS[69.5UltimateTensiStrenethK.p85.5Elongationin2"%28.54-"JA'mold(rReductionofArea%69.0JMA:gb Mr.ScottBoggsSeptember28,1993PROPRIETARYINFORMATIONCOMBUSTIONENGINEERING,INC.F-MECH-93-050L-MECH-93-015PageA7ofA10CertifiedMaterialTestReortforWeldWireHeatNo.83642LindeFluxe0091FluxLotNo.3536

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

Mr.ScottBoggsSeptember28,1993PROPRIETARYINFORMATIONCOMBUSTIONENGINEERING,INC.F-MECH-93-050L-MECH-93-015PageA9ofA10CertifiedMaterialTestReortforWeldWireHeatNo.83637LindeFluxe0091FluxLotNo.1122.

Mr.ScottBoggsSeptember28,1993F-MECH-93-050PROPRIETARYINFORMATIONL-MECH-93-015COMBUSTIONENGINEERING,INC.PageA10ofA10illICM-UfIIUDUUHVCEDlUIM!.)I..II'EstlCONIHUSYIQMDIVISIIGMSubectE-fPROPRfFrom-DateMr.P.C.Kiefer:c:Mr.R.JayMr.S.A.LewisMr.S.R.LewisMr.R.E.Lorentz,jr.Mr.G.PorterMr.R.E.SmithWeldingMaterialQualificationtoRequirementsofASMESectionIIIJobNumberD-32255ProjectNumber960009MetallurgicalResearchandDevelopmentDepartmentChattanoogaFebruary8,1973Thefollowingtestdataisfor3/16"diameterbarewire,typelowCu-Phos.,HeatNo.83637,FluxType0091,LotNo.1122.Awelddepositwasmadeusingtheaboveheatofwireandlotofflux.WeldingwasdoneinaccordancewithC-EWeldingProcedureSpecificationSA-33-34.Thecompletedweldmentwasgivenapostweldheattreatmentof1150'F+25Ffor40hoursandfurnacecooledto600'F.IMPACTANDORFRACTURETESTSTYPETEMPoFVALUES~Ft.Lbs.MilsLat.Exn.TEMP.oFVALUESDroWeihtsNOT+10"+10+10153131125858177-50-401F2NF-50FALLWELDMETAL.505TENSILELabYieldStrengthCodeKSIUltimateTensileStrength.KSIElongationin2"ReductionofArea/oBC77~229.$73.1.Arnold