ASME_B36.19-2022.pdf

AN AMERICAN NATIONAL STANDARDASME B36.19-2022(R evision of ASME B36.19M-2018)Wel ded and Seaml essWrought St ainl ess St eel PipeA SMEB36.19-2022(Rev isionofA SMEB36.19M-2018)WeldedandSeamlessWr oughtStainlessSteelPipeA NA MERICA NNA TIONA LSTA NDA RDTwo Park Avenue New York,NY 10016 USAxDateofIssuance:May31,2022ThenexteditionofthisStandardisscheduledforpublicationin2025.ASMEissueswrittenrepliestoinquiriesconcerninginterpretationsoftechnicalaspectsofthisCode.InterpretationsarepublishedontheCommitt eewebpageandunderhttp:/go.asme.org/InterpsDatabase.PeriodicallycertainactionsoftheASMEB36CommitteemaybepublishedasCases.CasesarepublishedontheASMEwebsiteundertheB36CommitteePageathttp:/go.asme.org/B36committeeastheyareissued.ErratatocodesandstandardsmaybepostedontheASMEwebsiteundertheCommitt eePagestoprovidecorrectionstoincorrectlypublisheditems,ortocorrecttypographicalorgrammaticalerr orsincodesandstandards.Sucherratashallbeusedonthedateposted.TheB36CommitteePagecanbefoundathttp:/go.asme.org/B36committee.Thereisanoptionavailabletoautomaticallyreceiveane-mailnotif icationwhenerrataarepostedtoaparticularcodeorstandard.Thisoptioncanbef oundontheappr opriateCommitt eePageafterselecting“Errata”inthe“PublicationInformation”section.ASMEistheregisteredtrademarkofT heAmericanSocietyofMechanicalEngineers.T hiscodeorstandardwasdevelopedunderproceduresaccreditedasmeetingthecriteriaforAmericanNationalStandards.T hestandardscommitteethatappr ovedthecodeorstandardwasbalancedtoensurethatindividualsfromcompetentandconcernedinterestshadanopportunitytoparticipate.T heproposedcodeorstandardwasmadeavailableforpublicreviewandcomment,whichprovidedanopportunityforadditionalpublicinputfromindustry,academia,regulatoryagencies,andthepublic-at-large.ASMEdoesnot“approve,”“rate,”or“endorse”anyitem,construction,pr oprietarydevice,oractivity.ASMEdoesnottakeanypositionwithrespecttothevalidityofanypatentrightsassertedinconnectionwithanyitemsmentionedinthisdocument,anddoesnotundertaketoinsureanyoneutilizingastandardagainstliabilityforinfringementofanyapplicableletterspatent,nordoesASMEassumeanysuchliability.Usersofacodeorstandardareexpresslyadvisedthatdeterminationofthevalidityofanysuchpatentrights,andtheriskofinfringementofsuchrights,isentirelytheirownresponsibility.Participationbyfederalagencyrepresentativesorper sonsaffiliatedwithindustryisnottobeinterpretedasgovernmentorindustryendor sementofthiscodeorstandard.ASMEacceptsresponsibilityforonlythoseinterpretationsofthisdocumentissuedinaccordancewiththeestablishedASMEproceduresandpolicies,whichprecludestheissuanceofinterpretationsbyindividuals.Nopartofthisdocumentmaybereproducedinanyform,inanelectronicretrievalsystemorotherwise,withoutthepriorwrittenpermissionofthepublisher.T heAmericanSocietyofMechanicalEngineersT woParkAvenue,NewYork,NY10016-5990Copyright2022byT HEAMERICANSOCIET YOFMECHANICALENGINEERSAllrightsreservedCONTENTSForeword.ivCommit t eeRost er.vCorrespondenceWitht heB36Commit t ee.viSummaryofChanges.viii1Scope.12Size.13Materials.14W allThick ness.15W eig hts/Masses.16PermissibleVariations.17PipeThreads.18W all-Thick nessSelection.29Refer encesSection.2Table2-1DimensionsofW eldedandSeamlessSt ainlessSt eelPipeandNominalWeight s(Masses)ofSt eelPipe,PlainEnd.3iiiFOREWORDThisSt andardforcorrosion-resist antpiping,designat edcat egoricallyasstainles s,isbasedonthesameprinciplesthatformedt heback groundforthedevelopmentofASMEB36.10M,W eldedandSeamlessWroughtSt eelPipe,andreferenceismadet ot hissourceofinformat ion.Themorerecentdevelopmentofthehighlyalloyedst ainlessst eelshasbroughtaboutaminorconflictw ithconvent ion.Wit ht hesenew ermat erials,t heneedforst andardsisjustasgreatandt hepresentt ypesoft hreadsarejustassat isfact ory,butt hebasiccostoft hemetalismuchhigherandt heartoffusionw eldinghasdevelopedconcurrently.Thecharact erofst ainlessst eelpermit st hedesignofthin-wallpipingsyst emsw it houtfearofearlyfailureduetocorrosion,andt heuseoffusionweldingt ojoinsuchpipinghaseliminat edthenecessit yoft hreadingit.Fort hesereasons,t hewall-thick nessdimensionsshownunderSchedule10Shav ebeendeveloped,basedont heconvent ionalformula,butt henmodifiedtocorrespondt ot henearestBirming hamWireGage(B.W.G.)number.Followingpublicat ionoft he1949edit ion,ademanddevelopedforast illlight erwallpipe.ASchedule5Sw asdet er-minedcooperat ivelybyrepresent at ivesofchemicalcompanies,processingindust ries,andmanufact urersofw eldingfittings.Thisw asendorsedbyt heAmericanSt andardsAssociat ion(ASA)ChemicalIndust ryCorrelat ingCommit t eeandt heManufact urersStandardizationSociet yoftheV alveandFit t ingsIndust ry.Thenewschedulewasincludedint herev isedstandardthatw asapprovedbyASAnowAmericanNat ionalSt andardsInst it ut e(ANSI)onApril7,1952.In1956,itw asrecommendedt hatt hewallt hick nessof12in.5Sbelessened,andanewrevisionoft hest andardwasissuedshort lyaft eritsapprovalbyASAonFebruary27,1957.Int hisfourt hedit ion,dimensionsw ereexpandedbeyond12in.pipesizebyinclusionof,andreferencet o,ASTMSpecificat ionA409.