EN 13480-4:2017

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kovinski industrijski cevovodi - 4. del: Proizvodnja in vgradnjaMetallische industrielle Rohrleitungen - Teil 4: Fertigung und VerlegungTuyauteries industrielles métalliques - Partie 4: Fabrication et installationMetallic industrial piping - Part 4: Fabrication and installation77.140.75Jeklene cevi in cevni profili za posebne nameneSteel pipes and tubes for specific use23.040.10Železne in jeklene ceviIron and steel pipesICS:Ta slovenski standard je istoveten z:EN 13480-4:2017SIST EN 13480-4:2018en,fr,de01-januar-2018SIST EN 13480-4:2018SLOVENSKI
STANDARDSIST EN 13480-4:2012/A3:2017SIST EN 13480-4:2012/A4:2017SIST EN 13480-4:2012/A5:2018SIST EN 13480-4:2012SIST EN 13480-4:2012/A1:2013SIST EN 13480-4:2012/A2:20161DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13480-4
June
t r s y ICS
t uä r v rä r s Supersedes EN
s u v z ræ vã t r s tEnglish Version
Metallic industrial piping æ Part
vã Fabrication and installation Tuyauteries industrielles métalliques æ Partie
v ã Fabrication et installation
Metallische industrielle Rohrleitungen æ Teil
vã Fertigung und Verlegung This European Standard was approved by CEN on
t s June
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s u v z ræ vã t r s y ESIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)2ContentsFPageFEuropeanforeword.5 1Scope.7 2Normativereferences.7 3Termsanddefinitions.8 4Symbols.8 5General.8 5.1Requirementsonthemanufacturer.8 5.2Requirementsonfabricatorsandinstallersofpipingandsupports.9 5.3Requirementsforfabricationandinstallation.9 5.4Classificationofpiping.10 5.5Materialgrouping.10 5.6Tolerances.10 6Cuttingandbevelling.10 6.1General.10 6.2Identificationofpressureparts.10 7Bendingandotherforming.11 7.1General.11 7.2Heattreatmentaftercoldforming.13 7.2.1Flatproducts.13 7.2.2Pipes.13 7.3Heattreatmentafterhotforming.15 7.3.1Materialgroups1,3,4,5and6.15 7.3.2Materialgroups8.1and8.2.15 7.3.3Heattreatmentafterhotformingformaterialgroup10.17 7.3.4Heattreatmentafterhotformingforcladmaterials.17 7.4Tolerances.17 7.4.1Outæofæroundnessofbendsunderinternalpressureequalto,orgreaterthan,theexternalpressure.17 7.4.2Outæofæroundnessofbendsunderexternalpressureandvacuum.18 7.4.3Wavesatbends.18 7.4.4Startæupbulgeofinductionbends.19 7.5Surfacefinish.20 8Installationofpiping.20 8.1Fixingandalignment.20 8.2Fieldrunpiping.22 8.3Flangedorsimilarmechanicalconnections.22 8.3.1Flangeconnections.22 8.3.2Threadedconnections.23 8.3.3Couplingsandcompressionfittings.23 8.4Protectionofendsofpipingcomponents.23 9Welding.24 SIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)39.1Weldingpersonnel.24 9.2Weldingprocedurespecifications.24 9.3Weldingprocedures.24 9.3.1Verificationofsuitability.24 9.3.2Application.25 9.4Fillermetalsandauxiliarymaterials.26 9.5Climaticconditions.26 9.6Cleaningbeforeandafterwelding.26 9.7Jointpreparation.27 9.8Edgeprotection.27 9.9Assemblyforwelding.27 9.10Earthing.27 9.11Performanceofwelding.28 9.11.1Preheating.28 9.11.2Strikingmarks.28 9.11.3Externalwelds.28 9.11.4Dissimilarjoints.28 9.12Backingrings.28 9.13Attachments.29 9.13.1General.29 9.13.2Temporaryattachments.29 9.13.3Permanentattachments.29 9.14Postæweldheattreatment.29 9.14.1General.29 9.14.2Equipment.33 9.14.3Temperaturemeasurements.33 9.14.4Controllingthickness.33 9.14.5Rateofheating.35 9.14.6Localheattreatment.35 9.14.7Insulation.36 9.15Weldidentification.36 10Adjustmentandrepair.36 10.1General.36 10.2Adjustment.36 10.2.1Coldhammering.36 10.2.2Adjustmentsbymeansofheat.36 10.2.3Adjustmentbywelding.37 10.2.4Adjustmentbylocalforging.37 10.3Weldrepair.37 11Markinganddocumentation.37 11.1Markingofspoolsandcomponentsforinstallation.37 11.2Markingandidentificationofinstalledpiping.37 11.2.1General.37 11.2.2CEMarkingofinstalledpiping.38 11.2.3Technicalidentificationofinstalledpiping.38 12Additionalrequirements.39 12.1Cleaning.39 12.2Temporarypreservation.39 12.3Externalcorrosionprotection.39 12.4Thermalandacousticinsulation.39 12.5Connectionsforstaticelectricity.40 SIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)4AnnexA(informative)Contaminationandsurfacequalityofstainlesssteel.41 A.1Introduction.41 A.2Protection.41 A.2.1Handling.41 A.2.2Duringfabricationandinstallation.41 A.3Controlledcleaningmethods.42 A.4Chemicaltreatments.42 A.4.1Acidpickling.42 A.4.2Decontamination,passivation.43 A.5Preparingforshipment.43 AnnexBDimensionaltolerancesforfabricatedspools.44 AnnexYHistoryofEN13480æ4.46 Y.1DifferencesbetweenEN13480æ4:2012andEN13480æ4:2017.46 AnnexZARelationshipbetweenthisEuropeanStandardandtheEssentialRequirementsofEUDirective2014/68/EUaimedtobecovered.47 Bibliography.48 FFFSIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)5EuropeanforewordpipingFandFpipelinesóáFtheFsecretariatFofFwhichFisFheldFbyFAFNORäFThisFEuropeanFStandardFshallFbeFgivenFtheFstatusFofFaFnationalFstandardáFeitherFbyFpublicationFofFanFidenticalFtextForFbyFendorsementáFatFtheFlatestFbyFDecemberFFtFrFsFyáFandFconflictingFnationalFstandardsFshallFbeFwithdrawnFatFtheFlatestFbyFDecemberFFtFrFsFyäFAttentionFisFdrawnFtoFtheFpossibilityFthatFsomeFofFtheFelementsFofFthisFdocumentFmayFbeFtheFsubjectFofFleFforFidentifyingFanyForFallFsuchFpatentFrightsäFThisFdocumentFhasFbeenFpreparedFunderFaFmandateFgivenFtoFCENFbyFtheFEuropeanFCommissionFandFtheFEuropeanFFreeFTradeFAssociationáFandFsupportsFessentialFrequireForFrelationshipFwithFEUFDirectiáFwhichFisFanFintegralFpartFofFthisFdocumentäFThisFEuropeanFStandardFENFFsFuFvFzFrFforFmetallicFindustrialFpipingFconsistsFofFeightFinterdependentFandFnotFdissociableFPartsFwhichFareãF Part1:General; Part2:Materials; Part3:Designandcalculation; Part4:Fabricationandinstallation; Part5:Inspectionandtesting; Part6:Additionalrequirementsforburiedpiping; CEN/TR13480æ7,Guidanceontheuseofconformityassessmentprocedures; Part8:Additionalrequirementsforaluminiumandaluminiumalloypiping.AlthoughFtheseFPartsFmayFbeFobtainedFseparatelyáFitFshouldFbeFrecognisedFthatFtheFPartsFareFinterædependantäFAsFsuchFtheFmanufactureFofFmetallicFindustrialFpipingFrequiresFtheFapplicationFofFallFtheFrelevantFPartsFinForderFforFtheFrequirementsFofFtheFStandardFtoFbeFsatisfactorilyFfulfilledäFThisFEuropeanFStandardFwillFbeFmaintainedFbyFaFMaintenanceFMHDFworkingFgroupFwhoseFscopeFofFworkingFisFlimitedFtoFcorrectionsFandFinterpretationsFrelatedFtoFENFFsFuFvFzFräFSIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)6submittingFquestionsFcanFbeFdownloadedFfromFtheFlinkFtoFtheFMHDFwebsiteäFAfterFsubjectFexpertsFhaveFagreedFanFansweráFtheFanswerFwillFbeFcommunicatedFtoFtheFquestioneräFCorrectedFpagesFwillFbeFgivenFspecificFissueFnumberFandFissuedFbyFCENFaccordingFtoFCENFRulesäFInterpretationFsheetsFwillFbeFpostedFonFtheFwebsiteFofFtheFMHDäFThisFdocumentFsupersedesFENFFsFuFvFzFræFvãFtFrFsFtäFThisFnewFeditionFincorporatesFtheFAmendmentsFwhichFhaveFbeenFapprovedFpreviouslyFbyFCENFmembersáFandFtheFcorrectedFpagesFupFtoFIssueFFvFwithoutFanyFfurtherFtechnicalFchangeäFAnnexFYFprovidesFdetailsFofFsignificantFtechnicalFchangesFbetweenFthisFEuropeanFStandardFandFtheFpreviousFeditionäFAmendmentsFtoFthisFnewFeditionFmayFbeFissuedFfromFtimeFtoFtimeFandFthenFusedFimmediatelyFasFalternativesFtoFrulesFcontainedFhereinäFAccordingFtoFtheFCENæCENELECFInternalFRegulationsáFtheFnationalFstandardsForganizationsFofFtheFfollowingFcountriesFareFboundFtoFimplementFthisFEuropeanFStandardãFAustriaáFBelgiumáFBulgariaáFCroatiaáFCyprusáFCzechFRepublicáFDenmarkáFEstoniaáFFinlandáFFormerFYugoslavFRepublicFofFMacedoniaáFFranceáFGermanyáFGreeceáFHungaryáFIcelandáFIrelandáFItalyáFLatviaáFLithuaniaáFLuxembourgáFMaltaáFNetherlandsáFNorwayáFPolandáFPortugaláFRomaniaáFSerbiaáFSlovakiaáFSloveniaáFSpaináFSwedenáFSwitzerlandáFTurkeyFandFtheFUnitedFKingdomäFFFFFFFFFFFFFFFFFFSIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)71 ScopeThisFPartFofFthisFEuropeanFStandardFspecifiesFtheFrequirementsFforFfabricationFandFinstallationFofFpipingFsystemsáFincludingFsupportsáFdesignedFinFaccordanceFwithFENFFsFuFvFzFræFuãFtFrFsFyäF2 NormativereferencesTheFfollowingFdocumentsáFinFwholeForFinFpartáFareFnormativelyFreferencedFinFthisFdocumentFandFareFindispensableFforFitsFapplicationäFForFdatedFreferencesáFonlyFtheFeditionFcitedFappliesäFForFundatedFreferencesáFtheFlatestENFFsFrFtFrFvãFtFrFrFváFMetallicproducts—TypesofinspectiondocumentsENFFsFtF{FwFtæFwãFtFrFsFsáFWaterætubeboilersandauxiliaryinstallations—Part5:WorkmanshipandconstructionofpressurepartsoftheboilerFENFFsFuFvFzFræFsãFtFrFsFyáFMetallicindustrialpiping—Part1:GeneralENFFsFuFvFzFræFtãFtFrFsFyáFMetallicindustrialpiping—Part2:MaterialsFENFFsFuFvFzFræFuãFtFrFsFyáFMetallicindustrialpiping—Part3:DesignandcalculationFENFFsFuFvFzFræFwãFtFrFsFyáFMetallicindustrialpiping—Part5:InspectionandFtestingENFISOFFuFzFuFvæFuãFtFrFrFwáFQualityrequirementsforfusionweldingofmetallicmaterials—Part3:Standardqualityrequirements(ISO3834æ3:2005)ENFISOFFvFrFxFuãFtFrFsFráFWeldingandalliedprocesses—Nomenclatureofprocessesandreferencenumbers(ISO4063:2009,Correctedversion2010æ03æ01)FENFISOFFwFzFsFyãFtFrFrFyáFWelding—Fusionæweldedjointsinsteel,nickel,titaniumandtheiralloys(beamweldingexcluded)—Qualitylevelsforimperfections(ISO5817:2003,correctedversion:2005,includingTechnicalCorrigendum1:2006)ENFISOFF{FxFrFxæFsãFtFrFsFuáFQualificationtestingofwelders—Fusionwelding—Part1:Steels(ISO9606æ1:2012,FincludingCor1:2012)FENFISOFFsFuF{FtFráFWelding—Generaltolerancesforweldedconstructions—Dimensionsforlengthsandangles—Shapeandposition(ISO13920)ENFISOFFsFvFyFuFtãFtFrFsFuáFWeldingpersonnel—Qualificationtestingofweldingoperatorsandweldsettersformechanizedandautomaticweldingofmetallicmaterials(ISO14732:2013)FSpecificationandqualificationofweldingproceduresformetallicmaterials—WeldingprocedurespecificationFENFISOFFsFwFxFsFrãFtFrFrFuáFSpecificationandqualificationofweldingproceduresformetallicmaterials—Qualificationbasedontestedweldingconsumables(ISO15610:2003)ENFISOFFsFwFxFsFsãFtFrFrFuáFSpecificationandqualificationofweldingproceduresformetallicmaterials—Qualificationbasedonpreviousweldingexperience(ISO15611:2003)SIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)8ENFISOFFsFwFxFsFtãFtFrFrFváFSpecificationandqualificationofweldingproceduresformetallicmaterials—Qualificationbyadoptionofastandardweldingprocedure(ISO15612:2004)ENFISOFFsFwFxFsFuãFtFrFrFváFSpecificationandqualificationofweldingproceduresformetallicmaterials—Qualificationbasedonpreæproductionweldingtest(ISO15613:2004)FENFISOFFsFwFxFsFvæFsãFtFrFrFváFSpecificationandqualificationofweldingproceduresformetallicmaterials—Weldingproceduretest—Part1:Arcandgasweldingofsteelsandarcweldingofnickelandnickelalloys(ISO15614æ1:2004)ENFISOFFsFyFxFxFuãFtFrFrF{áFWelding—Qualityrequirementsforheattreatmentinconnectionwithweldingandalliedprocesses(ISO17663:2009)Welding—Guidelinesforametallicmaterialsgroupingsystem(ISO/TR15608)F3 TermsanddefinitionsForFtheFpurposesFofFthisFdocumentáFtheFtermsFandFdefinitionsFgivenFinFENFFsFuFvFzFræFsãFtFrFsFyFtogetherFwithFtheFfollowingFapplyäF3.1fieldrunpipingpipingFinstalledFwithoutFpreplanningFbyFdrawingsFofFtheFpipingFroutingFandFtheFsupportFpointsFFNoteFFsFtoFentryãFTypicalFdimensionsFareFDNFFwFrForFsmalleräF3.2spool(withorwithoutoverlength)prefabricatedFassemblyFofFcomponentsFwhichFformsFpartFofFaFpipingFsystemF3.3coldformingformingFatFambientFtemperatureáFbutFnotFbelowFFªFFwFF¹CFFF3.4hotformingforFferriticFsteelsáFformingFatFtemperaturesFatForFaboveFtheFmaximumFpermissibleFtemperatureFforFpostæweldFheatFtreatmentâFforFausteniticFandFausteniticæferriticFsteelsFatFtemperaturesFaboveFFuFrFrFF¹CF4 SymbolsForFtheFpurposesFofFthisFPartFofFthisFEuropeanFStandardáFtheFsymbolsFgivenFinFENFFsFuFvFzFræFsãFtFrFsFyFapplyäFAdditionalFsymbolsFareFdefinedFinFappropriateFclausesFofFthisFPartäF5 General5.1 RequirementsonthemanufacturerTheFmanufacturerFshallFbeFresponsibleFforFtheFfabricationFandFtheFinstallationáFevenFifFthisFworkFwillFbeFFsubæcontractedFtoFotherFfabrSIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)95.2 Requirementsonfabricatorsandinstallersofpipingandsupports5.2.1rsFshallFensureFtheFcorrectFtransportáFhandlingáFstorageáFfabricationáFinstallationFandFtestingFofFallFpipingFcomponentsFincludingFsupportsäF5.2.2TheFfabricatorsFandFinstallersFshallFhaveFaccessFtoFfacilitiesFwhichFenableFthemFtoFhandleFtheFpipingFcomponentsFincludingFsupportsFcorrectlyFandFtoFcarryFoutFtheFrequiredFtestsäF5.2.3rsFshallFemployFtheirFownFresponsibleFsupervisorsFandFcompetentFpersonneläFIfFsubæcontractorsFareFemployedáFtheFfabriresponsibleFforFtheirFcompetenceFandFtheFcomplianceFwithFthisFEuropeanFStandardäFNOTEFTheFtaskFandFresponsibilitiesFofFaFweldingFcoæordinatorFareFdescribedFinFENFISOFFsFvFyFuFsäF5.2.4FAllFstagesFofFfabricationFandFinstallationFshallFbeFsupervisedFinFsuchFaFwayFasFtoFmaintainFtheFdesignFintegrityFofFtheFfinishedFsystemäF5.2.5FCoæordinationFbetweenFthoseFresponsibleFforFdesignFandFthoseFresponsibleFforFfabricationFsáFtoFensureFthatFfabricationáFinstallationFandFtestingFisFcarriedFoutFinFaccordanceFwithFtheFdesignFspecificationäF5.2.6ofFtheFpipingFshallFfulfilFtheFrequirementsFofFENFISOFFuFzFuFvæFuäF5.3 Requirementsforfabricationandinstallation5.3.1FPriorFtoFanyFoperationáFaFcheckFshallFbeFmadeFtoFensureFthatFtheFspoolsFandFcomponentsFsuppliedFareFinFaccordanceFwithFth5.3.2FPrefabricatedFspoolsFandFcomponentsFshallFbeFprotectedFduringFhandlingáFtransportáFandFstorageäFF5.3.3FWhenFjoiningFspoolsForFcomponentsáFtheyFshallFnotFbeFstrainedFnorFdeformedFotherFthanFasFmayFbeFrequiredFbyFtheFdesignäFDesignerF5sFinstallationFinstructionsáFifFanyáFshallFbeFobservedäFNOTEFFwäFuäFuFisFdeemedFtoFbeFfulfilledáFwhenFtheFqualityFcharacteristicsFofFtheFmaterialFareFnotFimpairedFbyFcoldForFhotFformingáFeägäFbyFcuttingáFgrindingáFstraighteningForFbendingáFofFtheFcomponentsFandFwhenFtheFdifferentFcomponentsFhaveFbeenFjoinedFsuchFthatFstressesFandFdeformationsFwhichFcanFimpairFtheFsafetyFofFtheFpipingFareFexcludedäF5.3.4AnyFtemporaryFsupportsForFrestraintsFusedFasFanFaidFduringFtransportáFinstallationForFtestingFshallFbeFremovedFpriorFtoFcommissioningäF5.3.5FAppropriateFmeasuresFshallFbeFtakenFtoFavoidFcorrosionæinducingFcontaminationFofFstainlessFsteelFandFnonæferrousFmaterialsäFIfFcontaminationFoccursáFitFshallFbeFproperlyFremovedFasFsoonFasFpracticableáFnotwithstandingFanyFfinalFtreatmentäFNOTEFRecommendedFmethodsFforFtheFpreventionFandFremovalFofFcontaminationFonFstainlessFsteelFareFgivenFinFAnnexFAäF5.3.6FPipingFforFfluidsFwhichFareFlikelyFtoFcauseFcondensationFshallFbeFinstalledFwithFadequateFslopesFandFtrapsäFSIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)105.4 ClassificationofpipingTheFpipingFsystemsFshallFbeFclassifiedFintoFdifferentFcategoriesFdependingFonFtheFfluidFcarriedáFdiameterFandFpressureäFTheseFareFgivenFinFENFFsFuFvFzFræFsäF5.5 MaterialgroupingMaterialFgroupingFisFgivenFinFENFFsFuFvFzFræFtäF5.6 TolerancesTolerancesFshallFcomplyFwithFENFISOFFsFuF{FtFráFclassFCFandFclassFGáFexceptFwhereFotherFclassesFareFspecifiedFinFthisFEuropeanFStandardForFbyFdesignäFAngularFtolerancesFforFfabricatedFpipeworkFshallFbeFdeterminedFbyFtheFdimensionalFtoleranceFforFtheFterminalFpointsFofFtheFfinishedFpartäFAlternativeFtolerancesFforFfabricationFandFinstallationFofFpipeworkFshallFbeFdeterminedFandFinFallFcasesFtheseFshallFbeFidentifiedFinFtheFspecificationäFDimensionalFtolerancesFforFfabricatedFspoolsFshallFcomplyFwithFAnnexFBäF6 Cuttingandbevelling6.1 GeneralCuttingFandFbevellingFbyFmachiningFshallFbeFpermittedFforFallFmaterialsäFFlameFcuttingFshallFbeFpermittedFforFmaterialFgroupsFFsáFFtáFFuáFFvFandFFwFonlyFwithFpreheatingFasFspecifiedFforFweldingäFFNOTEFFlameFcuttingFforFmaterialFgroupsFFsFandFFtFcanFbeFusedFforFbevellingáFifFtheFrequiredFbevelFformsFandFtolerancesFcanFbeFachievedFandFtheFheatFaffectedFzoneFhasFnoFdetrimentalFeffectsFonFtheFqualityFofFtheFweldäFFForFmaterialFgroupsFFuáFFvFandFFwáFtheFheatFaffectedFzoneFshallFbeFremovedFbyFmachiningForFgrindingäFPlasmaFcuttingFshallFbeFpermittedFforFallFmaterialFgroupsFgivenFinFthisFEuropeanFStandardäFPlasmaFcuttingFshallFbeFprecededFbyFpreheatingáFasFspecifiedFforFweldingäFOtherFcuttingFandFbevellingFprocessesFareFpermittedáFprovidedFtheirFsuitabilityFisFdemonstratedäF6.2 IdentificationofpressurepartsForFpressureFpartsáFidentificationFofFmaterialsFshallFremainFpossibleáFeitherFbyFretainingForFbyFtransferringFtheFmarkFstipulatedFbyFtheFproductFstandardáForFbyFusingFaFuniqueFcodeFkeptFinFtheFrecordsFofFtheFpipingFfabricatoräFStampingFshallFnotFintroduceFaFnotchingFeffectáFthereforeFlowæstressFstampingFisFrecommendedäFIfFanyFmethodFofFmarkingFotherFthanFhardæstampingáFedgingForFenfabricatorFshallFensureFthatFconfusionFbetweenFdifferentFmaterialsFisFnotFpossibleäFSIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)117 Bendingandotherforming7.1 General7.1.1FFabricatorsFofFformedFpressureFpartsFshallFhaveFadequateFproceduresáFequipmentFandFtoolsFforFtheFformingFandFtheFsubsequentFheatFtreatmentäFTheFprocedureFforFbendingFshallFbeFqualifiedFaccordingFtoFENFFsFtF{FwFtæFwãFtFrFsFsáFAnnexFAáFwithFregardFtoFexaminationFandFrangeFofFqualificationäFPipesFwithFinternalFcoatingFsuchFasFglassáFrubberForFplasticsFshallFnotFbeFformedFunlessFitFhasFbeenFdemonstratedFthatFtheFformingFprocessFisFnotFdetrimentalFtoFtheFliningäFNOTEFThereFareFtwoFkindsFofFformingFwithinFtheFscopeFofFthisFEuropeanFStandardãFcoldFformingFandFhotFformingäFTheFthicknessFafterFbendingForFformingFshallFbeFnotFlessFthanFthatFrequiredFbyFtheFdesignäFLongitudinalFweldsFshouldFbeFlocatedFatFtheFneutralFzoneäFTheFrangeFofFtheFneutralFzoneFafterFbendingFisFgivenFinFFigureFFyäFsäFsæFsäFKeyFsFextradosFFtFintradosFngitudinalFweldFatFbendingFFigure7.1.1æ1—OptimalrangeforthelongitudinalweldatbendingF7.1.2TheFformingFandFpostæformingFheatFtreatmentFofFthermomechanicalFsteelsFshallFbeFgivenFindividualFconsiderationäFAccountFshallFbeFtakenFofFtheFrecommendationsFofFtheFsteelmakersäFPipesFwhoseFpropertiesFhaveFbeenFgeneratedFbyFthermomechanicalFmeansFsuchFasFcontrolledFrollingFcanFbeFformedFbyFcoldFmethodsäFSuchFmaterialsFmayFbeFsubstantiallyFchangedFbyFtheFformingFprocessFandFrequireFparticularFconsiderationFtoFensureFthatFtheFspecifiedFpropertiesFareFrecoveredFafterFformingäFF7.1.3TheFfollowingFformulaeFshallFbeFusedFforFtheFcalculationFofFtheFpercentageFdeformationFforFcoldFformedFcylindersFandFconeFproducSIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)12 ForFcylindersFandFconesFrolledFfrmfordd50reVF ForFcylindersFandFconesFrolledFfrmimfmfintd150rrreVwhereFordeFisFtheForderedFthicknessâFinteFFisFtheFthicknessFofFtheFintermediateFproductâFmfrFFisFtheFaverageFradiusFofFtheFfinishedFproductâFmirFFisFtheFaverageFradiusFofFtheFintermediateFproductâFVdFFisFtheFdeformationFasFaFpercentageäFNOTEFIfFnoFintermediateFqualityFheatFtreatmentFisFappliedFbetweenFindividualFformingFstepsáFtheFdeformationFisFtheFtotalFamountFofFdeformationFofFtheFindividualFstepsäFIfFintermediateFqualityFheatFtreatmentFisFappliedFbetweenFtheFformingFstepsáFtheFdeformationFisFthatFdeformationFappliedFafterFtheFlastFtreatmentäFFttFFigure7.1.3æ1—FormingofcylindersandconesF7.1.4ToolsFandFequipmentFusedFforFformingFshallFbeFmaintainedFtoFensureFaFsmoothFprofileFfreeFfromFstressæraisingFdefectsáFeägäFscoresäFSIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)137.1.5HeatFtreatmentFafterFformingFshallFbeFinFaccordanceFwithFtheFrespectiveFmaterialFstandardäF7.1.6FWeldingFonFtoFformedFareasFshallFnotFbeFperformedFuntilFheatFtreatmentFisFcompleteäF7.2 Heattreatmentaftercoldforming7.2.1 FlatproductsFlatFproductsFshallFbeFheatFtreatedFafterFcoldFformingFasFrequiredFinFTableFFyäFtäFsæFsäFFForFspecialFdesignFreasonsáFforFexampleFcyclicFloadingForFstressFcorrosionFcrackingáFheatFtreatmentFinFexcessFofFthatFinFTableFFyäFtäFsæFsFmayFbeFspecifiedFafterFcoldFformingäFNoFheatFtreatmentFforFausteniticFsteelsFisFrequiredãF ForFausteniticFsteelsFhavingFaFdocumentedFminimumFvalueFofFelonAFwFequalFtoForFgreaterFthanFFuFrFF¨áFaFmaximumFlevelFofFFsFwFF¨FcoldFdeformationFshallFbeFacceptableäFFAFgreaterFdeformationFmayFbeFacceptedFifFtheFevidenceFisFsuppliedFthatFthereFisFaFminimumFFFSuchFevidenceFshallFbeFdeemedFsuppliedáFifFtheFacceptanceFcertificateFshowsFthatFelongationFafterFAFwFisFnotFlessFthanFFuFrFF¨äFThisFshallFbeFapplicableFonlyFinFcasesFwhereFthereFisFnoFriskFofFstressFcorrosionFcrackingâFAFwFlessFthanFFuFrFF¨áFevidenceFshallFbeFsuppliedFthatFthereFisFaFminimumFelongationFofFFsFwFF¨FafterFcoldFformingâFFrFF¨FifFtheFworkingFtemperatureFisFbelowFæFsF{FxFF¹CäFTable7.2.1æ1—HeattreatmentaftercoldformingofflatproductsMaterialgroupsaccordingtoCENISO/TR15608FDeformationHeattreatmentFsäFsáFFsäFtáFFsäFuáFFtäFsáFFtäFtFaáFFuáFFvFbáFFwäFsáFFwäFtbáFFwäFuFbáFFwäFvFbáFFxFbáFFyäFsáFFyäFtáFFyäFuáFF{äFsáFF{äFtáFFsFrFFFwFF¨FnoFFµFFwFF¨FyesFFzäFsáFFzäFtFcFFFdFFFaFIfFnotFheatFtreatedáFqualificationFtestsFareFrequiredFtoFdemonstrateFthatFtheFmaterialFpropertiesFareFnotFimpairedäFbFHeatFtreatmentFrequiredFinFaccordanceFwithFtheFmaterialFstandardsFwhereFtheFminimumFmetalFtemperatureFisFbelowFæFFsFrFF¹CäFcFdFSolutionFannealedFandFquenchedForFstabilisedFmaterialsFdoFnotFrequireFheatFtreatmentFafterFcoldFformingäF7.2.2 PipesPipesFshallFbeFheatFtreatedFafterFcoldFformingFinFaccordanceFwithFTableFFyäFtäFtæFsäFSIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)14ForFspecialFreasonsáFforFexampleFcyclicFloadingForFstressFcorrosionáFheatFtreatmentFmayFbeFspecifiedFafterFcoldFformingäFTable7.2.2æ1—HeattreatmentaftercoldformingofpipesMaterialgroupsaccordingtoCENISO/TR15608FMeanbendingradiusofthepipeFFrm OutsidediameterofthepipeFFdoFHeattreatmentFsäFsáFFsäFtáFFsäFuáFFtäFsáFFFtäFtFbáFFuFbáFFvFaáFFwäFsáFFwäFtFaáFFwäFuFaáFFwäFvFaáFFxFaáFFyáFFzáFF{áFFsFrFFrmFFFsáFuFdoFFallFdiametersFFyesFFsáFuFdoFF´FrmFF´FFtáFwFdoFFdoFFFsFvFtFmmFFnoFFdoFFµFFsFvFtFmmFFyesFcFFFFtáFwFdoFFrmFallFdiametersFnoFNOTEFForFdoFand rmáFseeFFigureFFyäFtäFtæFsäFaFHeatFtreatmentFrequiredFinFaccordanceFwithFtheFmaterialFstandardsFwhereFtheFminimumFmetalFtemperatureFisFbelowFæFsFrFF¹CäFbFIfFnotFheatFtreatedáFqualificationFtestsFareFrequiredFtoFdemonstrateFthatFtheFmaterialFpropertiesFareFnotFimpairedäFcFNotFrequiredFforFmaterialFgroupsFFzäFsáFFzäFtäFFFFigure7.2.2æ1—PipebendingSIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)157.3 Heattreatmentafterhotforming7.3.1 Materialgroups1,3,4,5and6AfterFhotFformingáFincludingFinductionFbendingáFtheFpartsFshallandFtemperingáFquenchingFandFtemperingForFannealingFasFapproprispecificationFtoFensureFthatFtheFpropertiesFmeetFthoseFrequiredFbyFtheFmaterialFstandardáForFotherFappropriateFspecificationäFSpecialFconsiderationFshallFbeFgivenFtoFmaterialsFdesignedFtoFoperateFatFelevatedForFsubæzeroFtemperaturesForFotherFspecialFconditionsäFIfFtheFhotFformingFofFmaterialsFofFgroupsFFsáFFuáFFwFupFtoFFtFF¨FCrFhasFbeenFstartedFandFendedFwithinFtheFtemperatureFrangeFfixedFinFtheFmaterialFspecificationãF quenchedFandFtemperedFsteelsFneedFonlyFbeFtemperedFprovidedFthatFtheyFhaveFbeenFrapidlyFcooledFbyFwaterForFairFfromFtheFformingFtemperatureäFtreatmentFduringFbendingFbyFtheFapplicationFofFwaterForFairFquenchesäFFusingFtheFinductionFbendingFprocessFwithFairForFwaterFquenchingFmayFbeFsuitableFinFtheFasæbentFconditionFforFapplicationsFwhereFhighFimpactFresistanceFandFductilityFareFnotFrequiredäFSuchFbendsFmayFbeFsuppliedFwithoutFpostæbendingFheatFtreatmentFprovidedFthatFbendFhardnessFdoesFnotFexceedFFtFzFwFHVäFHeatFtreatmentsFforFhighFalloyedFferriticFmaterialFshouldFfollowFasFsoonFafterFformingFasFpracticableáFtoFminimiseFtheFriskFofFhydrogenFinducedFcrackingäFTheFmanufacturerFshallFdemonstrateFthatFtheFrequisiteFpropertiesFareFachievedFinFtheFfinalFproductFbyFtheFexaminationFandFtestingFofFoneForFmoreFsampleFbendsäFTheseFbendsFshallFbeFmadeFinFaccordanceFwithFallFtheFrelevantFparametersFtoFbeFusedFinFproductionFbendsäFTheseFparametersFincludeáFbutFareFnotFlimitedFtoáFchemicalFcompositionáFformingFtemperatureáFformingFrm do7.3.2 Materialgroups8.1and8.2AusteniticFsteelsFwhichFhaveFbeenFrapidlyFcooledFfromFaboveFtheFsolutionFannealingFtemperatureFusingFwaterForFairFduringFtheFformingFprocessFshallFnotFrequireFpostæformingFheatFtreatmentäFStabilisedFausteniticFsteelsFformedFaboveFtheFsolutionFannealingFtemperatureFshallFbeFsubjectedFtoFpostæformingFstabilisingFtreatmentäFStabilisedFausteniticFsteelsFformedFinFtheFstabilisingFtemperatureFrangeáFshallFnotFrequireFsubsequentFtreatmentäFHeatFtreatmentFshallFbeFcarriedFoutFinFaccordanceFwithFTableFFyäFuäFtæFsäFSIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)16Table7.3.2æ1—HeattreatmentofausteniticsteelsafterhotformingMaterialtypeTypicalsteelgradesConditionsunderwhichpostæformingheattreatmentmaybewaivedTemperaturerangeforheattreatmentwhenstabilisingaSolutionannealingtemperaturebácFNameFNumberFNonæweldedFpartsFWeldedFpartsFNonæweldedFpartsFF¹CFWeldedFpartsFF¹CFFF¹CFStabilisedFsteelsFnonæMoæalloyedFXFFxFCrNiTiFFsFzæFsFrFXFFxFCrNiNbFFsFzæFsFrFFsäFvFwFvFsFFsäFvFwFwFrFFormingFstartedFatFFFFFFFFFFsFFrFrFrFF¹CFfFtoFFsFFsFwFrFF¹CFandFfinishedFatFFµFFyFwFrFF¹CFFormingFstartedFatFFsFFrFrFrFF¹CFtoFFsFFsFwFrFF¹CFandFfinishedFatForFnonæstabilisedFfillersFwithFFFráFrFvFF¨FCFinFweldFmetalFF{FrFrFF¬FFtFrFFcFF{FtFrFF¬FFtFrFFFFsFFrFtFrFFMoæalloyedFXFFxFCrNiMoTiFFsFyæFsFtæFtFXFFxFCrNiMoNbFFsFyæFsFtæFtFFsäFvFwFyFsFFsäFvFwFzFrFnotFpermittedFdFnotFpermittedFdFFeFFsäFvFwFrFwFFFFFsFFrFwFrFFnonFstabilisedFsteelsFnonæMoæalloyedFXFFtFCrNiFFsF{æFsFsFXFFtFCrNiNFFsFzæFsFrFFsäFvFuFrFxFFsäFvFuFsFsFF{FrFrFF¬FFtFrFFcFF{FtFrFF¬FFtFrFFcáFgFFFsFFrFrFrFFMoæalloyedFXFFtFCrNiMoFFsFyæFsFtæFtFXFFtFCrNiMoFFsFzæFsFvæFuFXFFtFCrNiMoNFFsFyæFsFsæFtFFsäFvFvFrFvFFsäFvFvFuFwFFsäFvFvFrFxFF{FxFrFF¬FFtFrFF¹CFcáFeFF{FzFrFF¬FFtFrFFcáFgáFhFFFsFFrFtFrFFXFFtFCrNiMoNFFsFyæFsFuæFuFXFFtFCrNiMoFFsFzæFsFwæFvFXFFtFCrNiMoNFFsFyæFsFuæFwFFsäFvFvFtF{FFsäFvFvFuFzFFsäFvFvFuF{FFFFFsFFrFvFrFFnonFMoæalloyedFXFFvFCrNiFFsFzæFsFrFXFFvFCrNiFFsFzæFsFtFFsäFvFuFrFsFFsäFvFuFrFuFFormingFstartedFatFFFsFFrFrFrFF¹CFfFtoFFsFFsFwFrFF¹CFeFandFfinishedFatFFµFFzFyFwFF¹CFwaterFforFwallFthicknessesFFormingFstartedFatFFsFFrFrFrF¹CFtoFFsFFsFwFrFF¹CFeFandFfinishedFatFwaterFforFwallFthicknessesForFnonæstabilisedFfillersFwithFFFráFrFxFF¨FCFnotFpermittedFnotFpermittedFFFsFFrFrFrFFMoæFalloyedFXFFwFCrNiMoFFsFyæFsFtæFtFXFFuFCrNiMoFFsFyæFsFuæFuFFsäFvFvFrFsFFsäFvFvFuFxFFFFFsFFrFwFrFFaFFStabilisingForFcorrespondingFannealingFinFtheFcaseFofFnonæstabilisedFsteelsFwithFapproximatelyFFuFrminFcriticalFintervaläFbFFForFeordF≥FFxFmmFtheFtypeFofFcoolingFshallFcFFForFeordFdFFUnlessFrequiredFbyFprocessFconditionsäFeFFMinimalFcriticalFintervalFisFFwFminäFfFFFStartingFtemperatureFofFFsFFrFrFrFF¹CFmayFbeFloweredFifFpartFwasFinFtheFquenchedFstateFpriorFtoFhotFformingäFgFFStabilisingFnotFpermissibleFifFstabilisedFfillersFareFusedäFhFFSteelsFNoäFFsäFvFvFrFxFandFFsäFvFvFtF{FmayFbeFstabilisedFatFlowerFtemperaturesFifFtheFsameFmaterialFcharacteristicsFwillFbeFreachedäFSIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)177.3.3 Heattreatmentafterhotformingformaterialgroup10AfterFhotFformingáFtheFpartsFshallFbeFheatFtreatedFinFaccordanceFwithFtheFmaterialFspecificationsäF7.3.4 HeattreatmentafterhotformingforcladmaterialsIfFformingFcannotFbeFavoidedáFthenFtheFprocessFofFformingFandFheatFtreatmentFshallFbeFdemonstratedFasFgivingFspecifiedFpropertiesäF7.4 Tolerances7.4.1 Outæofæroundnessofbendsunderinternalpressureequalto,orgreaterthan,theexternalpressureTheFoutæofæroundnessáFuF1002minomaxominomaxodddduwhereFFmaxodFisFtheFmaximumFoutsideFdiameterFmeasuredáFinFmmâFFminodFisFtheFminimumFoutsideFdiameterFmeasuredFatFtheFsameFcrossFsectionFasFmaxodáFinFmmäFTheFoutæofæroundnessFofFtheFbendFshallFnotFexceedFtheFlimitsFgivenFinFFigureFFyäFväFsæFsäFTheFendsFofFtheFbentFpipesFshallFcomplyFwithFtheFtolerancesFforFtheFbaseFpipeäFFFFSIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)18FKey odFFisFtheFoutsideFdiameterFâmrFFisFtheFmeanFbendingFradiusFâFuFFisFtheFoutæofæroundnessFFigure7.4.1æ1—AcceptableoutæofæroundnessF7.4.2 OutæofæroundnessofbendsunderexternalpressureandvacuumValuesFforFoutæofæroundnessFshallFconformFtoFtheFvaluesFstatedFinFtheFdesignäF7.4.3 WavesatbendsWavesFatFbendsFareFacceptableFasFlongFasFtheyFcomplyFwithFbothFofFtheFfollowingFconditionsãF01m03,0dhFwhereFFhmFisFtheFmeanFheightFofFadjacentFwavesáFcalculatedFasFfollowsãF030402m2dddhwhereFdFrFsáFdFrFtáFdFrFuáFdFrFvFareFasFshownFinFFigureFFyäFväFuæFsäFFFFSIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)19m12haFwhereFFaFisFtheFwaveFdistanceâFhmFisFtheFmeanFheightFofFadjacentFwavesáFcalculatedFasFinFFormula NOTEFFFFForFclarityáFwavesFhaveFbeenFexaggeratedäFigure7.4.3æ1—Wavesatbends7.4.4 StartæupbulgeofinductionbendstheFnominalFwallFthicknessáFandFtheFmaximumFdimensionFofFitsFbaseFshallFbeFatFleastFeightFtimesFitsFheightFandFshallFblendFsmoothlyFintoFtheFTheFoutæofæroundnessFtoleranceFspecifiedFinFFyäFväFsFshallFalsoFbeFapplicableFonFaFcrossæsectionFtakenFatFtheFpointFofFirregularityäFSIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)20FKeyFaFFFzFhF4ehFwhereFeFisFtheFnominalFwallFthicknessFFigure7.4.4æ1—Startæupbulge7.5 SurfacefinishTheFsurfaceFofFtheFbendFshallFbeFsuchFasFtoFpermitFaFvisualFexaminationäFAllFbendsFshallFbeFfreeFfromFsurfaceFimperfectionsFsuchFasFcracksáFindentationsáFlapsFandFscabsäFWhereFsurfaceFimperfectionsFareFgroundFoutáFtheFwallFthicknessFshallFnotFbeFreducedFbelowFtheFcalculatedFminimumFwallFthicknessäFAreasFwhichFareFgroundFtoFremoveFimperfectionsFshallFbeFexaminedFbyFsurfaceFcrackFdetectionFmethodsFappropriateFtoFtheFmaterialFtoFensureFcompleteFremovalFofFtheFimperfectionsäFRepairsFbyFweldingFshallFnotFbeFpermittedäF8 Installationofpiping8.1 FixingandalignmentTheFpipingFshallFbeFinstalledFinFaccordanceFwithFtheFdesignFrequirementsFgivenFinFENFFsFuFvFzFræFuäFForFspecialFoperationsáFeägäFbalancingFandFcoldFpulláFinstructionsFshallFbeFspecifiedäFTheFslopeFofFtheFpipingFshallFbeFcheckedFtoFensureFthatFcontinuousFslopeFisFachievedFinFaccordanceFwithFtheFdesignäFWhereFnecessaryáFduringFassemblyFofFpipingFsectionsáFtheFinstallerFshallFuseFtemporaryFsupportsFtoFensureFthatFnoFunacceptableFstressForFdeformationFoccursFinFtheFpipingFandFconnectedFequipmentFasFaFconsequenceFofFtheFcantileverFeffectFofFunsupportedFweightFdistributionäFTemporaryFauxiliaryFsupportsFshouldFbeFusedFtoFreplaceFtheFsupportingFeffortFofFconnectedFequipmentäFPipingFshallFnotFbeFdistortedFforFtheFpurposeFofFalignmentFforFjointFassemblyäFSuchFdistortionFcanFintroduceFdetrimentalFstrainsFinFtheFpipingForFconnectedFequipmentäFFFFFSIST EN 13480-4:2018

EN13480æ4:2017(E)Issue1(2017æ06)21LongitudinalFweldsFshallFbeFlocatedFsoFasFtoFavoidFopeningsForFattachmentsFwhereverFpossibleäFLongitudinalFweldsFinFadjoiningFcomponentsFshallFbeFstaggeredFbyFtwiceFtheFnominalFwallFthicknessáFwithFaFminimumFdistanceFofFFtFrFmmäFSupportsFshallFbeFinstalledFtoFensureFthatFtheFidentificat
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