英国标准BSEN288-9-1999

~STDmBSIBSENZôB-q-ENGL1901W1b24bb907900727h4IsBRITISHSTANDARDSpecificationandapprovalofweldingproceduresformetallicmaterials-Part9:WeldingproceduretestforpipelineweldingonlandandoffshoresitebuttweldingoftransmissionpipelinesTheEuropeanStandardEN28891999hasthestatusofaBritishStandardICs25.160.10BSEN288-9:1999NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPïRIGRTLAWCOPYRIGHTEuropeanCommitteeforStandardizationLicensedbyInformationHandlingServices~STDaBSIBSEN2B8-7-ENGL1701D16246670790073bTO~~~~Amd.No.DateBSEN288-91999CommentsNationalforewordThisBritishStandardistheEnglishlanguageversionofEN2889:1999.TheUKparticipationinitspreparationwasentrustedbyTechnicalCommitteeWEE.21,pipeworkwelding,toSubcommitteeWEE/21/7,Fieldwelding,whichhastheresponsibilityto:-aidenquirerstounderstandthetext;-presenttotheresponsibleEuropeancommitteeanyenquiriesontheinterpretation,orproposalsforchange,andkeeptheUKinterestsinformed;-monitorrelatedintemationalandEuropeandevelopmentsandpromulgatethemintheUK.Alistoforganizationsrepresentedonthissubcommitteecanbeobtainedonrequesttoitssecretary.Cross-referencesTheBritishStandardswhichimplementinternationalorEuropeanpublicationsreferredtointhisdocumentmaybefoundintheBSIStandardsCatalogueunderthesectionentitled"InternationalStandardsCorrespondenceIndex",orbyusingthe"Find"facilityoftheBSIStandardsElectronicCatalogue.ABritishStandarddoesnotpurporttoincludeallthenecessaryprovisionsofacontsact.UsersofBritishStandardsareresponsiblefortheircorrectapplication.CompliancewithaBritishStandarddoesnotofitselfconferimmunityfromlegalobligations.SummaryofpagesThisdocumentcomprisesafrontcover,aninsidefrontcover,theENtitlepage,pages2to19andabackcover.TheBSIcopyrightnoticedisplayedthroughoutthisdocumentindicateswhenthedocumentwaslastissued.ThisBritishStandard,havingbeenpreparedunderthedirectionoftheEngineeringSectorCommittee,waspublishedundertheauthorityoftheStandardsCommitteeandcomesintoeffecton15August1999AmendmentsissuedsincepublicationOBSI08-1999ISBNO580325806COPYRIGHTEuropeanCommitteeforStandardizationLicensedbyInformationHandlingServicesSTDaBSIBSENZöB-q-ENGLLqOLmLb24bb9U79OU74537UmoPlwNSTANDARDEN288.9NORMEEUROPEENNEEUROP-N0R;MMarch1999ICs25.160.10EnglishversionSpecificationandappmdofweldmgproceduresformetallicmaterials-Part9Weldin$proceduretestforpipellineweldmgonlandandoflkhoresitebuttweldmgofimm-rws'onpipelinesDescriptifetqualiñcationd'unmodeopératoiredemudagepourleseuxmétalliques-Partie9EpreuvedequaMcaiiond'unmodeopératoiredesoudagepourlesoudageboutaboutde*'onsdetransportsursite,surterreetVemrgmgpmhrleitungenanLandundOfkhoreenmerAnforderungundAnerkennungvonSchweiBverîàhrenfürmetallischeWerkstoffe-Teil9SchweiBverhhrensprufungfürbaustellengeschweiBteStumphähkvonThisEuropeanStandardwasapprovedbyCENon3March1999.CENmembersareboundtocomplywiththeCENKENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteraton.Up-to-datelistsandbibiiographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember.ThisEuropeanStandardexisisinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusastheofficialversions.CENmembersarethenationaìstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom.CENEuropeanCommitteeforStandardizationComiti2EuropéendeNormalisationEurophkhesKomiteefürNormungCentralSecretariat:ruedeStassart36,B-1060BrusselsO1999CENAUrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN288-91999ECOPYRIGHTEuropeanCommitteeforStandardizationLicensedbyInformationHandlingServices~~~~STD.BSIBSEN288-9-ENGL1901OLb24bb9079007s473mPage2EN28û-91999ForewordThisEuropeanStandardhasbeenpreparedbyTechnicalCommitteeCENRC121,Welding,theSecretariatofwhichisheldbyDS.ThisEuropeanstandardshallbegiventhestatusofanationalstandard,eitherbypubiicationofanidenticaltextorbyendorsement,atthelatestbySeptember1999,andconflictingnationalstandardsshallbewithdrawnatthelatestbySeptember1999.AccordingtotheCENKENELECInternalRegulations,thenationaistandardsorganizationsofthefollowingcountriesareboundtoimplementthisEuropeanstandard:Austria,Belgium,CzechRepublic,Denmark,Finland,France,Gemmy,Greece,Iceland,Ireland,I-,Luxembourg,Netherlands,Norway,Pow,Spain,Sweden,SwitzerlandandtheUnitedKingdom.ContentsForewordIntroduction1233.13.23.33.44566.16.26.377.17.27.37.47.588.18.28.38.48.58.69ScopeNormativereferencesDefinitionsrepairfullpenetrationrepairinternalrepairmakePreliminaryweldingprocedurespecification(PWPS)WeldingproceduretestTestpieceGeneralShapeanddimensionsoftestpiecesWeldingoftestpiecesExaminationandtestingExtentoftestingLocationandcuttingoftestspecimensNon-destructiveexaminationDestructivetestsRetestingRangeofapprovalGeneralRelatedtothemanufacturerRelatedtothematerialCommontoallweldingproceduresSpecifictoprocessesPeriodofvaiidityWeàiingprocedureapprovalrecordm-)page23334444444444444466111212.121213141414AnnexA(nonnative)Repairs15AnnexB(informative)Adeviations16AnnexC(informative)Weldingprocedureapprovalrecordform17OBSI08-1999COPYRIGHTEuropeanCommitteeforStandardizationLicensedbyInformationHandlingServicesSTD-BSIBSEN288-9-ENGL1901WLb24bb9079007630TIntroductionAilnewweldingprocedureapprovaisareinaccordancewiththisstandardfromthedateofitsissue.However,thisstandarddoesnotinvaiidatepreviousweldingprocedureapprovaismadetoformernationalstandardsorspecification,providingtheintentofthetechnicalrequirementsissatisfiedandthepreviousprocedureapprovalsarerelevanttotheapplicationandproductionworkonwhichtheyareemployedAlso,whereadditionaitestsarecarriedouttomaketheweldingprocedureapprovaltechnicallyequivaient,theadditionaltestsaremadeonatestpiecewhichshouldbemadeinaccordancewiththisstandard.Considerationofpreviousprocedureapprovalstoformernationalstandardsorspecifícationsshouldbemadeattheheoftheenquiryorcontractstageandagreedbetweenthecontractingparties.1scopeThisstandardspecitieshowaweldingprocedurespecificationisapprovedbyweldingproceduretestsforonlandandoffshoresitebuttweldingoftsansmissionpipelinesundernormalahnosphericconditions.Testsarecarriedoutinaccordancewiththisstandardunlessadditionaltests(e.g.CTODtestsandallweldmetaltensiletests)arespecitiedbytherelevantapplicationstandardorcontractwhentheseapplyThisstandarddefinestheconditionsfortheexecutionofweldingprocedureapprovaltestsandthelimitsofvalidityofanapprovedweldingprocedureforallpracticalweldingoperationswiththerangeofvariablesWedinclause8.Itappliestothearcweldingofsteelsofgroups1,2and3accordingtoCR12187.Theprinciplesofthisstandardcanbeappliedtootherfusionweldingprocessessubjecttoagreementbetweenthecontsactingparties.Therequirementsforweldingprocedurespecificationandqualificationforhyperbaricand"wet"weldingarenotcoveredbythissupplementarystandard.ArcweldingiscoveredbythefollowingprocessesinaccordancewithEN21063:111-114-121-131-135-136-141-metaì-arcweldingwithcoveredelectrode;flux-coredwiremeta-arcweldingwithoutgasshield;submergedarcweldingwithwireelectrode;metai-arcinertgaswelding,MIGwelding;metal-arcactivegaswelding,MAG-welding;flux-coredwiremetal-arcweldingwithactivegasshield;tungsteninertgasarcwelding,TIGwelding.otherfusionweldingprocessesbyagreemente.g.metalcoredwirearcwelding.Page3EN288.919992NormativereferencesThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.Thesenormativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropeanStandardoniywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthepublicationreferredtoapplies.EN2881,Speí@icatwnandapprovalofweldingprocecluresfimetall2cmaterials-Part1:Genemlrulesforfusionweiùing.EN2882,SpecificationandapprovalofweldingpcedumformetallicmateriaCs-Part2:Weldingpcedumsp&fktionforarcwelding.EN439,WaingconsuWh-Shieldinggasesforamweldingandcutting.amwelding-Classifikation.EN875,Destructivetestsmweldsinmetallicmutenals-Impacttests-Testspecimenlocation,notchorientutionandexamination.EN895,Destructivetestsonwelíisinmetau2cmaterial-Panversetensiletest.EN970,Non-destructiveexaminationofwelds-Visualexamination.EN1043-1,Destructivetestonweldinmetallicmaterials-Hardnesstesting-Part1:Hardnesstestonarcweldedjoints.EN1290,Non-destructiveexaminationofwelds-Magneticparti.deexaminationofwelds.EN1321,Destructivetestonweldsinmetallicmaterials-Macroscopicandmicmscopicexaminationofwelds.EN1435,Non-destructiveexaminationofwelds-Rdwgraphicexaminationofweldedjoints.EN1714,Non-destructiveexaminutionofwelds-Ultrasonicexaminationofweldedjoints.ENIS06947,Welds-Workingpositions-Definitiunsofangksofslopeandrotution.(IS06947:1993)EN100451,Metallicmaterials-Charpyimpacttest-Part1:Testmethod.EN24063,Welding,brazing,soùkringandbrmeweìdingofmetals-Nomenclatureofprocessesandwfmenumbersforsymbolicrepresentationondrawings.ENIS06520-1:1998,Weìdingandappliedprocases-CïosiJicationofgeometricirnpep5ectionsinmetallicmaterials-Part1:Fusionwelding.(IS06520-1:1998)CR12187,Weiding-&.idelinesforagroupingsystemofmaterialsforwelding1rurp0se.s.EN760,W&iwconsumables-fiSUmed(Is04063:1990)OBSI08-1999COPYRIGHTEuropeanCommitteeforStandardizationLicensedbyInformationHandlingServicesPage4EN288-919993DeñnitionsForthepurposesofthisstandard,thedefinitionslistedbelowandinEN2881apply3.1repairanyoperationwhichinvolvesweldingtorectifytheweld,outsidethenomaiweldingcycle3.2fullpenetrationrepairweldedrepairthroughthewholethicknessofthequalificationjoint3.3internalrepairweldedrepaircarriedoutfromtheinsidesurfaceortherootsideofaweld,afterexcavationandrepreparation,usingeitherasingleoramulti-passwelddepositionsequence3.4makespecifictradeorbrandnameoftheconsumable,butnotitsdesignation4Prelhinaryweldingprocedurespecification(pwPS)ThepreliminaryweldingprocedurespecificationshallbepreparedinaccordancewithEN2882.Itshallspecifytherangeforailrelevantparametersincludingthefollowingadditionalitems:-steelgradeandsupplyconditions-numberandlocationofwelders;-timelapsebetweenstartofrootpassandstartofhotpass;-partiallycompletedjoint:numberofrunsbeforethejointispermittedtocooltoambienttemperature;-typeoflineupciamp;-timeofclampremoval;-numberofrunscompletedbeforeloweringofforbargemoveup;-preheatingmethod;-methodtocontrolcooiing.(N,TM,QTeels);5WeldingproceduretestThemahgandtestingoftestpiecesrepresentingthetypeofweldingusedinproductionshallbecarriedoutinaccordancewithclauses6and7ofthisstandard.Whenaweldingprocedureistobequalifiedandapprovedforpipe-reeling,theproposedweldingproceduresshaiiincluderelevantpreviouslydocumentedstrainageingdataand/oranyadditionaltestsspecified.NOTEThesetestscanincluderepresentativestraincyclesandacceleratedageingtypicallyfor1hat100"C.wheredatapipemziterialperFomcdwe1dabhtyexist,thesedatashallbeconsideredwhenselectingsuitableweldingparcunetersandconditionsforincorporatingintothepWPS.WheresuchdatadonotexistitcanbenecessarytocasryoutpreliminnaryweldingtrialstoestablishthesedataThewelderwhoundertakestheweldingproceduretestsatisfactorilyinaccordancewiththisstandardcanbeapproved,byagreementbetweenthecontractingparties,forweldingonsitewithintherangescoveredbytheapprovedweldingprocedurespecification.6Testpiece6.1GeneralTheweldedassemblytowhichthewelduigprocedurewillrelateinproductionshallberepresentedbymakingastandardizedtestpieceorpieces,asspecifiedin6.2.6.2ShapeanddimensionsoftestpiecesTestweldsshallbemadebetweenwholepipelengths(ifagreedbetweenthecontractingpartiesthelengthcouldbereducedtoaminimumofonediameter)undersimulatedsiteconditions(thismayincludetheapplicationofinstaliationstrains).WeldingshallfollowthepWPS,withremovalofline-upclamps,loweringoff,partialcompletionandrecommencementwhereapplicable.6.3WeldingoftestpiecesPreparationandweldingoftestpiecesshalibecarriedoutinaccordancewiththepWPS,andunderthegeneralconditionsofproductionweldingwhichtheyshallrepresent.WeldingpositionsandlimitationsfortheangleofslopeandrotationoftestpieceshalibeinaccordancewithENIS06947(seealso8.4.2).Iftackweldsaretobefusedintothefinaljointtheyshallbeincludedinthetestpiece.Weldingandtestingofthetestpiecesshallbewitnessedbyanexaminerorexaminingbody.7Examinationandtesting7.1ExtentoftestingThetestingincludesbothnondestructiveexaminaton(NDE)anddestructivetestingwhichshallbecarriedoutinaccordancewiththerequirementsof'pable1.WhenCharpyimpacttestsarespecifiedforweldsexceeding20mmthick,theyarerequiredattwodifferentthicknesslocations(see7.4.3).RepairsoutsideessentialvariablesneedfullapprovalinaccordancewithannexA.7.2LocationandcuttingoftestspecimensThelocationoftestspecimensshailbeinaccordancewithFigures1and2.Testspecimensshallbetakenafternon-destructiveexamination(NDE)hasshownsatisfactoryresults.Itispermittedtotakethetestspecimensfromlocationsavoidingareasshowingacceptableimperfections.OBSI08-1999COPYRIGHTEuropeanCommitteeforStandardizationLicensedbyInformationHandlingServicesSTD.BS1BSEN266-9-ENGL1901ILb24bh90790076IC42-Page5EN288-91999Table1-ExaminationandtestingofthetestpiecesITestpieceIButt-weld'QpeoftestVisualexamination(EN970)Mographicemmination(EN1435)orUltrasonicexaminaton(EN1714)Surfacecrackdetectionlhnsversetensiletest(EN895)Impacttest(EN875)Hardnesstest(EN10431)Macro-examination(EN1321)Extentoftesting1W100%100%2testspecimens2or4setsrequired1testspecimenNoteNOTE1MagneticparticleexaminationaccordingtoEN1290.NOTE21setintheweldmetaiand1setintheHAZateachldon.Seealso7.4.3.NOTE3NotrequiredforparentmetalsinfemticsteelswithR,,,5430N/m2(Re5275N/m2).TopforfixedpipeArea1for:-1tensiletestspecimen:Area2for:-impactandadditionaltestspecimensifrequired.Area3for:-1tensiletestspecimen;Area4for:-1macrotestspecimen;-1hardnesstestspecimen.Figure1-Locationoftestspecimensforabutt-weldinpipe-UpwardsweldingOBSI08-1999COPYRIGHTEuropeanCommitteeforStandardizationLicensedbyInformationHandlingServicesSTD.BSIBSEN288-9-ENGLL9OLLb246670770079OLqPage6EN2ûû-91999TopforfixedpipeArea1for:-1tensiletestspecimen:Ama2for-1macrotestspecimen:-1hardnesstestspecimen.Area3for:-1tensiletestspecimen:Area4for:-impactoradditionaltestspecimensifrequired.Figure2-Locationoftestspecimensforabutt-weldinpipe-Downwardswelding7.3Non-destructiveexamination7.3.1MethodAfteranyrequiredpost-weldheattreatmentandpriortothecuttingoftestspecimens,alltestpiecesshallbeexaminedvisuallyandnondestructivelyinaccordancewith7.1.Fornon-post-weldheattreatedtestpieces,accountshouldbetakenofthematerialssusceptibiiitytohydrogeninducedcrackingandconsequentlytheNDEshouldbedelayed.TheNDEdelayshallbe24h,unlessagreedbythecontractingpartiesorbytherelevantapplicationstandard.7.3.2AcceptancelevelsAweldingprocedureisapprovediftheimperfectionsinthetestpiecearewithinthespecifiedEmitsgivenin"able2.7.4DestructivetestsForweldscarriedoutbycellulosiccoatedelectrodes,adegassingheattreatmentof250"Cofupto16hcanbecarriedout,ifnecessaryaccordingtospecialrequirements.7.4.1DansversetensiletestinglkstsspecimensandtestingfortransversetensiletestingforbuttjointsshallbeinaccordancewithEN895.Forpipes>50mmoutsidediameter,theweldreinforcementshallberemovedonbothfacestogivethetestspecimenathicknessequaltowallthicknessofthepipe.'ilansversetensiletestisacceptableifthetestspecimenbreaksintheparentmaterialorwhenitbreaksintheweldmetalwithatensilestrengthequaltoorgreaterthanthespecifiedminimumtensilestrengthofpipematerial.7.4.2Macro-examinationTestspecimensandtestingformacroexaminationshallbeinaccordancewithEN1321.Theacceptancelevelsstatedin7.3.2shallapply7.4.3ImpacttestingIntheabsenceofanapplicationstandard,impacttestingisrequiredforpipeswithspecifiedimpactpropertiesandwallthicknessest212mm.TestspecimensshallbetakenandpreparedinaccordancewithEN100451insuchawaythattheaxisofthenotchisperpendiculartothepipesurface.Testspecimensandtestingforimpacttestshallbeinaccordancewiththisstandardforpositionandtemperatureoftesting,andwithEN875fordimensionsandtesting.Forweldmetal,testspecimentypeVWTOandforHAZspecimentypeVHTOshallbewed(seeFigure3).Fromeachspecifiedposition,eachsetshallbecomprisedofthreetestspecimens.TestspecimenswithCharpyVnotchshalibeusedandsampledfrom1mmto2mmbelowtheinnersurfaceofthepipeandtransversetotheweldWhenthepipewallthicknessexceeds20mm,twomoresetsarerequired,inthesamecircumferentiallocations,buttakenwithin1nunto2mmoftheoutsidesurfaceofthepipe.Testtemperatureandabsorbedenergyshallbeinaccordancewiththespecifieddesignrequh-ementsforthecompleteproduct,providedtherequirementslaiddownbytheapplicationstandardaremet.OBSI08-1999COPYRIGHTEuropeanCommitteeforStandardizationLicensedbyInformationHandlingServicesSTDmBSIBSENZBB-9-ENGL190%162ribb90770080830HPage7EN288-91999Table2-Limitsforim]imperfectiondesignation)racks;asporeJnifonnlydistributedporosityhearporosityIlongatedcavitylurfaceporemzdized(clustered)porosityElongatedcavityCraterpipeENIS06520-1:1998reference10020112012201420161017!O132015rfectionsLimitsforimperfectionsJotpermittedndividualgasporesorunifomlyàistributed)orosityshailbeunacceptablewhenanyofhefollowingconditionsexistsa)thesizeofanindividaiporeexceeds3nun;b)thesizeofanindividalporeexceeds25%ofthethinnerofthenominalwailthicknesjoined;c)thetotalarea,whenprojectedradiailythroughtheweldshallnotexceed294ofthcprojdedweldareaintheradiograph,consistingofthelengthoftheweldaffectedbytheporosi@,withaminimumlengthof150mmmultipliedbythemcurllnumwidtloftheweld-Clusteredporositythatoccminanypassexceptthefinishpassshaìlcomplywiththecriî~riaofgaspores.-Clusteredporositythatoccursinthefinishpassshallbeunacceptablewhenanyofthefollowingconditionsexists:a)thediameteroftheclusteredporosityexceeds13mm;b)theaggregatelengthofclusteredporosityinanycontinuous300mmlengtlofweldexceeds13mm;c)anindividualporewithinaclusteredporosityexceeds2mminsize.Unacceptableintherootpasswhenanyofthfollowingconditionsexists:a)thelengthofanindividualindicationexceeds50mm;b)theaggregatelengthoftheelongatedcavitiesinanycontinuous300mmlengthojweldexceeds50mm;c)theaggregatelengthoftheelongatedcavitiesexceeds15%oftheweldlength.Unacceptablewhenthemaximmlengthexceeds2mmor30%ofthewallthickness,whicheveristhesrnalier.OBSI081999COPYRIGHTEuropeanCommitteeforStandardizationLicensedbyInformationHandlingServices~~STD.BSIBSENZöô-q-ENGL39033b24bb90790083777Page8EN2889:1999Table2-Limitsforimperfections(continued)ImperfectiondesignationSlaginclusion:-linear-isolatedMetallicinclusions:-tungsten-copperlackoffusion:-lackofsidewallfusion-lackofinter-runfusion~ENIS06520-1:1998reference301301130123043041304240140114012~~~LimitsforimperfectionsUnacceptablewhenanyofthefollowingconditionsexists:a)thelengthofahearslaginclusionexceeds50mm;NOTEParalielbearindicationsseparatedbyappromatelythewidthoftherootrun(wagontracks)shouldbeconsideredassingleindicationsunlessthewidthofeitherofthemexceeds0,8m.Irthatcase,theyshouldbeconsideredasseparateindicationS.b)theaggregatelengthoflinearslaginclusionsinanycontinuous300mmlengthofweldexceeds50nun;c)thewidthofahearsiaginclusionexceeds1,6mm;d)theaggregatelengthofisolatedslaginclusionsinanycontinuous300mmlengthofweldexceeds50mm;e)thewidthofanisolatedslaginclusionexceeds3nunor50%ofthewallthickness,whicheverisless;f)morethanfourisolatedslaginclusionswiththemaximumwidthof3mmarepresentinanycontinuous300mmlengthofweld;g)theaggregatelengthoflinearandiso&cslaginclusionsexceeds15%oftheweldlength.Jmceptablewhenanyofthefollowing:onditionsexists:a)thesizeofacopperortungsteninclusionexceeds3mmor50%ofthewallthickness,whicheveristhesmaller;b)theaggregatelengthofcopperortungsteninclusionsexceeds12mminanycontinuous300mmlengthofweldormorethanfoursuchinclusionsarepresentinanycontinuous300mmlengthofweld.Jnacceptablewhenanyofthefollowing:onditionsexists:a)thelengthofanindividualindicationexceeds50mmb)theaggregatelengthofindicationsinanycontinuous300mmlengthofweldexceeds50mm;c)theaggregatelengthofindicationsexceeds15%oftheweldlength.OBSI08-1999COPYRIGHTEuropeanCommitteeforStandardizationLicensedbyInform