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1、Designation:A182/A182M−12aEndorsedbyManufacturersStandardizationSocietyoftheValveandFittingsIndustryUsedinUSDOE-NEStandardsStandardSpeciÞcationforForgedorRolledAlloyandStainlessSteelPipeFlanges,ForgedFittings,andValvesandPartsforHigh-Temperature1ServiceThisstandardisissuedunderth
2、eÞxeddesignationA182/A182M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapprov
3、al.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.NoteTable2wascorrectededitoriallyandtheyeardatechangedonAugust8,2012.1.5ThisspeciÞcationisexpressedinbothinch-poundunitsandinSIunits.However,unlesstheorderspeciÞesthe1.Scope*applicableÒMÓspeciÞcationdesignatio
4、n(SIunits),themate-2rialshallbefurnishedtoinch-poundunits.1.1ThisspeciÞcationcoversforgedlowalloyandstainlesssteelpipingcomponentsforuseinpressuresystems.Included1.6ThevaluesstatedineitherSIunitsorinch-poundunitsareßanges,Þttings,valves,andsimilarpartstospeciÞedaretoberegardedsep
5、aratelyasthestandard.Withinthetext,dimensionsortodimensionalstandards,suchastheASMEtheSIunitsareshowninbrackets.ThevaluesstatedineachspeciÞcationsthatarereferencedinSection2.systemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvalues1.2Fo
6、rbarsandproductsmachineddirectlyfrombar(otherfromthetwosystemsmayresultinnon-conformancewiththethanthosedirectlyaddressedbythisspeciÞcation;see6.4),standard.refertoSpeciÞcationsA479/A479MandA739forthesimilargradesavailableinthosespeciÞcations.Productsmadetothis2.ReferencedDocumen
7、tsspeciÞcationarelimitedtoamaximumweightof10000lb2.1InadditiontothereferenceddocumentslistedinSpeci-[4540kg].ForlargerproductsandproductsforotherÞcationA961/A961M,thefollowinglistofstandardsapplytoapplications,refertoSpeciÞcationsA336/A336MandA965/thisspeciÞcation.A965Mforthesimi
8、larferriticandausteniticgrades,3respecti
