2010ASMEBoilerandPressureVesselCodeANINTERNATIONALCODEVIIIDivision1RulesforConstructionofPressureVesselsCopyrightASMEInternationalProvidedbyIHSunderlicensewithASMELicensee=LloydsRegisterGroupServices/5975710001,User=Luo,WuNotforResale,07/21/201005:52:34MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--`,``,`,,`,`,,```,,`,,`,`,,,``,-`-`,,`,,`,`,,`---INTENTIONALLYLEFTBLANKCopyrightASMEInternationalProvidedbyIHSunderlicensewithASMELicensee=LloydsRegisterGroupServices/5975710001,User=Luo,WuNotforResale,07/21/201005:52:34MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--`,``,`,,`,`,,```,,`,,`,`,,,``,-`-`,,`,,`,`,,`---ANINTERNATIONALCODE2010ASMEBoiler&PressureVesselCode2010EditionJuly1,2010VIIIDivision1RULESFORCONSTRUCTIONOFPRESSUREVESSELSASMEBoilerandPressureVesselCommitteeonPressureVesselsThreeParkAvenue�NewYork,NY�10016USACopyrightASMEInternationalProvidedbyIHSunderlicensewithASMELicensee=LloydsRegisterGroupServices/5975710001,User=Luo,WuNotforResale,07/21/201005:52:34MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--`,``,`,,`,`,,```,,`,,`,`,,,``,-`-`,,`,,`,`,,`---DateofIssuance:July1,2010(IncludesallAddendadatedJuly2009andearlier)ThisinternationalcodeorstandardwasdevelopedunderproceduresaccreditedasmeetingthecriteriaforAmericanNationalStandardsanditisanAmericanNationalStandard.TheStandardsCommitteethatapprovedthecodeorstandardwasbalancedtoassurethatindividualsfromcompetentandconcernedinterestshavehadanopportunitytoparticipate.Theproposedcodeorstandardwasmadeavailableforpublicreviewandcommentthatprovidesanopportunityforadditionalpublicinputfromindustry,academia,regulatoryagencies,andthepublic-at-large.ASMEdoesnot“approve,”“rate,”or“endorse”anyitem,construction,proprietarydevice,oractivity.ASMEdoesnottakeanypositionwithrespecttothevalidityofanypatentrightsassertedinconnectionwithanyitemsmentionedinthisdocument,anddoesnotundertaketoinsureanyoneutilizingastandardagainstliabilityforinfringementofanyapplicableletterspatent,norassumeanysuchliability.Usersofacodeorstandardareexpresslyadvisedthatdeterminationofthevalidityofanysuchpatentrights,andtheriskofinfringementofsuchrights,isentirelytheirownresponsibility.Participationbyfederalagencyrepresentative(s)orperson(s)affiliatedwithindustryisnottobeinterpretedasgovernmentorindustryendorsementofthiscodeorstandard.ASMEacceptsresponsibilityforonlythoseinterpretationsofthisdocumentissuedinaccordancewiththeestablishedASMEproceduresandpolicies,whichprecludestheissuanceofinterpretationsbyindividuals.ThefootnotesinthisdocumentarepartofthisAmericanNationalStandard.ASMEcollectivemembershipmarkTheaboveASMEsymbolsareregisteredintheU.S.PatentOffice.“ASME”isthetrademarkoftheAmericanSocietyofMechanicalEngineers.Nopartofthisdocumentmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutthepriorwrittenpermissionofthepublisher.LibraryofCongressCatalogCardNumber:56-3934PrintedintheUnitedStatesofAmericaAdoptedbytheCounciloftheAmericanSocietyofMechanicalEngineers,1914.Revised1940,1941,1943,1946,1949,1952,1953,1956,1959,1962,1965,1968,1971,1974,1977,1980,1983,1986,1989,1992,1995,1998,2001,2004,2007,2010TheAmericanSocietyofMechanicalEngineersThreeParkAvenue,NewYork,NY10016-5990Copyright©2010byTHEAMERICANSOCIETYOFMECHANICALENGINEERSAllRightsReservedCopyrightASMEInternationalProvidedbyIHSunderlicensewithASMELicensee=LloydsRegisterGroupServices/5975710001,User=Luo,WuNotforResale,07/21/201005:52:34MDTNoreproductionornetworkingpermittedwithoutlicensefromIHS--`,``,`,,`,`,,```,,`,,`,`,,,``,-`-`,,`,,`,`,,`---CONTENTSListofSections.........................................................................xxvForeword...............................................................................xxviiStatementsofPolicy....................................................................xxixPersonnel..............................................................................xxxSummaryofChanges....................................................................xliiListofChangesinRecordNumberOrder.................................................xlviiiIntroduction.......................................................................1SUBSECTIONAGENERALREQUIREMENTS.........................................8PartUGGeneralRequirementsforAllMethodsofConstructionandAllMaterials........................................................8UG-1Scope..................................................................8MaterialsUG-4General................................................................8UG-5Plate...................................................................9UG-6Forgings...............................................................9UG-7Castings................................................................9UG-8PipeandTubes.........................................................9UG-9WeldingMaterials.......................................................10UG-10MaterialIdentifiedWithorProducedtoaSpecificationNotPermittedbyThisDivision,andMaterialNotFullyIdentifie