BSEN10253-3:2008ICS23.040.40;77.140.20NOCOPYINGWITHOUTBSIPERMISSIONEXCEPTASPERMITTEDBYCOPYRIGHTLAWBRITISHSTANDARDButt-weldingpipefittingsPart3:Wroughtausteniticandaustenitic-ferritic(duplex)stainlesssteelswithoutspecificinspectionrequirementsThisBritishStandardwaspublishedundertheauthorityoftheStandardsPolicyandStrategyCommitteeon31December2008©BSI2008ISBN9780580540479Amendments/corrigendaissuedsincepublicationDateCommentsBSEN10253-3:2008NationalforewordThisBritishStandardistheUKimplementationofEN10253-3:2008.ItsupersedesBS1640-2:1962andBS1640-4:1968whichiswithdrawn.TheUKparticipationinitspreparationwasentrustedtoTechnicalCommitteeISE/19,Pipefittings(otherthancastiron).Alistoforganizationsrepresentedonthiscommitteecanbeobtainedonrequesttoitssecretary.Thispublicationdoesnotpurporttoincludeallthenecessaryprovisionsofacontract.Usersareresponsibleforitscorrectapplication.CompliancewithaBritishStandardcannotconferimmunityfromlegalobligations.BSEN10253-3:2008EUROPEANSTANDARDNORMEEUROPÉENNEEUROPÄISCHENORMEN10253-3November2008ICS23.040.40;77.140.20EnglishVersionButt-weldingpipefittings-Part3:Wroughtausteniticandaustenitic-ferritic(duplex)stainlesssteelswithoutspecificinspectionrequirementsRaccordsàsouderboutàbout-Partie3:Aciersinoxydablesausténitiquesetausténo-ferritiquessanscontrôlespécifiqueFormstückezumEinschweißen-Teil3:Nichtrostendeaustenitischeundaustenitisch-ferritische(Duplex-)StähleohnebesonderePrüfanforderungenThisEuropeanStandardwasapprovedbyCENon18October2008.CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEuropeanStandardthestatusofanationalstandardwithoutanyalteration.Up-to-datelistsandbibliographicalreferencesconcerningsuchnationalstandardsmaybeobtainedonapplicationtotheCENManagementCentreortoanyCENmember.ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).AversioninanyotherlanguagemadebytranslationundertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheCENManagementCentrehasthesamestatusastheofficialversions.CENmembersarethenationalstandardsbodiesofAustria,Belgium,Bulgaria,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Romania,Slovakia,Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom.EUROPEANCOMMITTEEFORSTANDARDIZATIONCOMITÉEUROPÉENDENORMALISATIONEUROPÄISCHESKOMITEEFÜRNORMUNGManagementCentre:ruedeStassart,36B-1050Brussels©2008CENAllrightsofexploitationinanyformandbyanymeansreservedworldwideforCENnationalMembers.Ref.No.EN10253-3:2008:EBSEN10253-3:2008EN10253-3:2008(E)2ContentsPageForeword..............................................................................................................................................................4Introduction.........................................................................................................................................................61Scope......................................................................................................................................................72Normativereferences............................................................................................................................73Terms,definitionsandsymbols...........................................................................................................93.1Termsanddefinitions...........................................................................................................................93.2Symbols..................................................................................................................................................94Classificationofgradesanddesignation.........................................................................................104.1Classificationofgrades......................................................................................................................104.2Designation..........................................................................................................................................115Informationtobeobtainedfromthepurchaser...............................................................................115.1Mandatoryinformation........................................................................................................................115.1.1Designationoffittings.........................................................................................................................115.1.2Information...........................................................................................................................................115.2Options.................................................................................................................................................125.3Examplesofanorder................................................................................................................