RCC-M-Edition 2007 SECTION IV WELDING

WELDINGSECTIONIVDESIGNANDCONSTRUCTIONRULESFORMECHANICALCOMPONENTSOFPWRNUCLEARISLANDSRCC-MRCC-MRCC-M-Edition2007SectionIV-SS1000GENERALS1100GENERALPROVISIONSS1110PRELIMINARYVERIFICATIONS,QUALIFICATIONSANDACCEPTANCESTheuseofanyweldingproceduresshallbeprecededbythefollowingverifications,qualificationsandacceptancetests:-preliminaryverificationoftheweldabilityofthematerials(seeS1200),-acceptancetestingoflotsoffillermaterials(seeS2000),-qualificationoftheweldingprocedure(seeS3000),-qualificationofweldersandoperatorsforthatweldingprocedure(seeS4000),-qualificationoffillermaterialscoveredbythetermsofS5000(seeS5000),-qualificationoftheworkshop(seeS6000).Themainpointsatwhichthequalificationsspecifiedinthevariouschaptersofthissectionoverlaparesummarizedbelow.-NolotoffillermaterialmaybeaccepteduntilatechnicalqualificationdatasheethasbeenissuedforthematerialinquestionifitiscoveredbythetermsofS5000.Thistechnicalqualificationdatasheetdefinesthescopeofalotandalsodefinestheconditionsforuseofthematerial.-AnylotoffillermaterialusedwhenaweldingprocedureisqualifiedshallhavebeenacceptedinaccordancewiththetermsofS3143.-WeldersoroperatorswhohavepassedthequalificationtestsweldingprocedureshallbequalifiedtousethatprocedurewithinthelimitssetbythetermsofchapterS4000.AnotherwelderoroperatormayapplytheweldingprocedureifhehaspassedthequalificationtestsinaccordancewiththetermsofS4000.-ThequalificationofaweldingprocedureexemptsthefillermaterialusedfromthestandardassemblyteststipulatedinS5131.3.TheprocedurequalificationreportshalltaketheplaceoftheweldingprocedurequalificationrecordstipulatedinS5143.©n°113-2007S1000/1RCC-M-Edition2007SectionIV-SAchangeinbrandormanufacturingprocessofafillermaterialneednotinvalidatethequalificationoftheweldingprocedureiftheconditionsoftheparagraphdealingwiththeareaofvalidityofthequalificationoffillermaterials(S3215,S3315,S3415,S3615,S3815),aresatisfied.TheydohoweverrequiretherequalificationofthefillermaterialinaccordancewiththetermsofS5000.-Thequalificationofaweldingprocedureshallhavebeenapprovedattheworkshopwheretheprocedureisused.Transferfromoneworkshoptoanotherortothesiteshall,however,beallowedsubjecttotheconditionslaiddowninS6000.-ThetestsorstandardtestcouponsrequiredforthequalificationoffillermaterialscoveredbyS5000shallbeperformedbyaqualificationfabricatingworkshopinaccordancewithS6000usingfillermaterialsacceptance-testedinaccordancewithS2000.Note:HardfacingbyfusiononsteelisdealtwithseparatelyinchapterS8000.S1120WELDINGDATAPACKAGEEachweldingdatapackagerelatestoonecomponent.Itisrequiredforpressureretainingcomponentsandforreactorinternals.Itshallcomprise:-anoveralloroutlinedrawingofthecomponent,markingthepositionofallweldedjoints.Inthespecialcaseofpipelines,otherthanthoseoftheprimaryloops,towhichtheconceptofanoveralloroutlinedrawingdoesnotapply,itshallbepossibletoidentifythetypeofjointused,e.g.ontheisometricdrawings,-Forcomponentsotherthanpiping,atestcouponscheduleshowingthetestcouponandweldingsequencesforthepartsofthecomponent,togetherwiththeinterlockingstress-relievingheattreatmentsandinspections,-acatalogueofalljoints:foreachweldedjoint,orforeachtypeofjointinthecaseofpiping,thefollowingshallbeprovidedorspecified:.adimensionalsketch,.theweldingprocedureorproceduresusedandtherelevantweldingproceduredatasheets,.thecumulatedheattreatments,.theproperlyreferencedqualificationtestcouponortestcouponswhichvalidatetheweldingprocedure,.arecapitulatorylistofqualificationtestcouponsforthewholecomponentwith,foreachtestcoupon,theweldingproceduredatasheetfromwhichtheareaofvalidityofthequalificationisderived,.alistofweldingcontroltestcoupons.S1000/2©n°113-2007RCC-M-Edition2007SectionIV-SS1121WELDINGPROCEDUREDATASHEETSWeldingproceduredatasheetsenumerateandquantifyallthevariablesregardedasaffectingtheareaofvalidityofthequalificationoftheprocedureconcerned.Inthespecialcaseofmixedorheterogeneouswelds(seeS3110),theweldingproceduredatasheetshallspecifytheprovisionsadopted(atweldedgesorinthestandardpartoftheweld)concerningoverlappingofpassesorlayersandthemeasurestakentoensurethatoverlappingisproperlyperformed.S1200WELDABILITYOFMATERIALSTheContractorforthemainprimarysystemandtheManufacturerfortheothercomponentsshallsatisfythemselvesthatallthematerialstobeassembledbymeansofweldedjointsaresuitableforweldingbytheproposedprocedures.Thereferenceisprovidedbyacovered-electrodemanualbuttweldofsignificantthicknessmadeintheflatposition;theuseofotherweldingproceduresconstitutesanextensionoftheweldabilityofthematerial.Theweldabilityofasteelincreaseswiththerangeofpossiblechoicesofweldingprocessesandfillermaterialsandwiththewideningrangeofvariablesoftheweldingprocedureswhichcanbeusedtomakesatisfactorywelds.TheContractorortheManufacturershallmakeuseoftestresultsalreadyavailableforthematerialsinvolvedorshall,ifnecessary,carryoutadequateadditionaltests.Theinformationsoobtainedshallcoverboththeheat-affectedzoneandthedepositedmetalintheirfinalstate,thatis,theyshalltakeintoaccounttheeffectofanyheattreatment(s)appliedafterwelding.Theinformationsha