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1、Manua1.forDeterminingtheRemainingStrengthofCorrodedPipe1.inesSupp1.ementtoASMEB31CodeforPressurePipingANAMERICANNATIONA1.STANDARDManua1.forDeterminingtheRemainingStrengthofCorrodedPipe1.inesSupp1.ementtoASMEB31CodeforPressurePipingANAMERICANNATIONA1.STANDARDTwoParkAvenueNewYork,NY10016USADateof1.unc
2、c:October312023ThenextCdtionofthisManua1.isschedUcdforpub1.icationh2026ThisManua1.wasdeve1.opedunderproceduresaccreditedasmceongthecritcaforAZnCneanNatiOMStandards.ThestandardscommitteethatapprovedtheManua1.wasba1.ancedtoensurethatndvduakfromcompetentandconcernedinterestshadanOpportunitytoparticipat
3、e.IheManua1.wasmadevaiab1.eforpub1.icreviewandcomment,whichprovidedanopportunityforaddtia1.pub1.icinputfromindustry,acadcmafregu1.atoryagencies,andthepuU*c-at-1.arge.ASMEdoesnotapprove/-ccrfrate/orendoneanyitem,consucooaproprietarydevice,oractivity.ASMEdoesttakeanypositionwithrespecttotheva1.iditydJ
4、nVpotentrightsassertedinconnectionwithanitems11emionednthisdocument,anddocsnotundertaketoinsureanyoneUD1.izingastandardagainstIBbi1.itforinfringementofanyapp1.icab1.e1.etterspatent,nordoesASMEassumeanysuch1.iabi1.rty.Usersofacodeorsta11dardarcexpress1.yad/isedthatdetcr11Mnatooftheva1.idityofanysuchp
5、atentrights,andtheriskofinfringementofsuchrights,isentire1.ytheirownresponsibi1.ity.Parbapationbyfedera1.agencyrepcWentabvesorpersonsaffi1.iatedwithindustryisnottobeinterpretedagovernmentorindustryendorsementofthisManua1.ASMEacceptsresponsibi1.ityforon1.ythoseInterpretationsofthisdocumentissued1.acc
6、ordancewiththeestab1.ishedASMEproceduresandpo1.icies,whichprec1.udestheissuanceofinterpretatiombyindividua1.s.Theendnotesandpreamb1.einthisdocument(ifany)arcpartofthisAmericanNationa1.Standard.ASMECo1.1.ectiveMtm1.xrfihipMWIIASME*andIbeboveASMC*mbo1.4rerecbteredtridemjrhoTheAmernSocietyoMechjrice1.E
7、11crjer5.Sop4rtof卜bdocumentEJYbereproducedinaryform,Ganff1.ffctfonicretrev41.symOfoherww,withoutthpriorwrittenPerTnMOnofth。pub1.isher.ThMIefICMSMtyofMechfIcXEngineersTwoPartAvenue.MWYork.KY116990CopyrightO2023byTHEAMERICANSoanYOfMCCHANCA1.1.NGN(XRSA1.rghtreservedPrintedinUSACONTENTSForewordvCommrtte
8、cRosterviCorrespondenceWiththeB31CommitteeviiSummaryofChangesbe1 Introduction12 Eva1.uationMethods53 Tab1.esofA1.1.owab1.e1.engthofCorrosion8NonmandatoiyAppendixASamp1.eCa1.cu1.ations64Figures1.12- 1CorrosionPitInteractionDistancesS1.13- 1He1.ica1.1.yOrientedCorrosionPattern62.1-1CorrosionParameters
9、UsedinAna1.ysis6-2-1.PittingArrangementforExamp1.eProbiem65A-2-2CrossSectionofPittingforExamp1.eProb1.em65Tab1.es31Va1.uesof1.forPipeSizesNNPS2andCNPS6931MVa1.uesof1.forPipeSizes60mmand168mmOD93-2Vaiuwo(1.forPipeSixesNPS6andNPS10103-2MVa1.uesof1.forPipeSizes168mmand273mmOB113-3Va1.uesof1.forPipeSize
10、sNNPS10andVNPS161233MVa1.uesof1.forPipeSizes273mmand406mmOD133-4Va1.uesof1.forPipeSizesNPS16andNI*S20143-4MVa1.uesof1.forPipeSizes406mmandS08mmOD163.5Va1.uesof1.forPipeSizesNPS20andNPS24183-SMVa1.uesof1.forPipeSizes2三0mmand610mmOB2036Va1.uesof1.forPipeSizesNPS24andNPS302236MVa1.uesof1.forPipeSizes61
11、0mmand762mmOD243-7Va1.uesof1.forPipeSizesNPS30andNPS36263-7MVa1.uesof1.forPipeSizes762mmand914mmOB283-8Va1.uesof1.forRpcSizesNPS36andNPS423038MVa1.uesof1.forPipeSizes914mmand1066nun0.D323-9Va1.uesof1.forPipeSUesNPS42andNPS48M39MVa1.uesof1.forPipeSizes1066nunand1219mm0.D383-10Va1.uesof1.forPipeSizesZ
12、NPS48andNPSS242310MVa1.uesof1.forPipeSizes1219mmand1320mm0.D4S3-11Va1.uesof1.forPipeSizesNPS52andNPS56483-1IMVa1.uerof1.forPipeSizes21320mmandngservicehistories,mayexperiencecorrosion.Ithasahobeenrecognized,throughtheoretica1.ana1.i5,scientificresearchandtestIng.andmdustryoperatingexpcrience.thatsom
13、eamountofmea1.Iossduetocorrask)ncanbeto1.eratedwithoutimpairingtheabi1.ityofthepipe1.inetooperatesafe1.y.In1984,theAmericanSodecyofMechan1.a1.Engineers(SME)pub1.ishedthefirsteditionoftheSMEB31GManua1.forDeterminingtheRemainingStrengthofCorrodedPipe1.ines.ASMEB3IGprovidedpipe1.ineoperatorswithsimp1.i
14、fiedeva1.uationmethodbasedontheresu1.tsOfana1.ysisandtests.Theapp1.icationofASMEB31Ghasenab1.edpipe1.ineoperatorstore1.iab1.ydeterminesafeoperatingpressure1.eve1.sforpipeaffectedbycorrosion,andtodeterminewhetherrepairsarenecewaryinordertocontinueoperatingsafe1.y.ASMEB31GcontinuedtobereissuedbyASMEwithon1.yminorrevisionsovertime,a1.thoughothercorrosioneva(u3tionmethod%hadUVOhred%inceSMEB31G*sinitia1.p
