Designation:A182/A182M−16aEndorsedbyManufacturersStandardizationSocietyoftheValveandFittingsIndustryUsedinUSDOE-NEStandardsStandardSpecificationforForgedorRolledAlloyandStainlessSteelPipeFlanges,ForgedFittings,andValvesandPartsforHigh-TemperatureService1ThisstandardisissuedunderthefixeddesignationA182/A182M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thisspecification2coversforgedlowalloyandstainlesssteelpipingcomponentsforuseinpressuresystems.Includedareflanges,fittings,valves,andsimilarpartstospecifieddimensionsortodimensionalstandards,suchastheASMEspecificationsthatarereferencedinSection2.1.2Forbarsandproductsmachineddirectlyfrombar(otherthanthosedirectlyaddressedbythisspecification;see6.4),refertoSpecificationsA479/A479MandA739forthesimilargradesavailableinthosespecifications.Productsmadetothisspecificationarelimitedtoamaximumweightof10000lb[4540kg].Forlargerproductsandproductsforotherapplications,refertoSpecificationsA336/A336MandA965/A965Mforthesimilarferriticandausteniticgrades,respectively,availableinthosespecifications.1.3Severalgradesoflowalloysteelsandferritic,martensitic,austenitic,andferritic-austeniticstainlesssteelsareincludedinthisspecification.Selectionwilldependupondesignandservicerequirements.Severaloftheferritic/austenitic(duplex)gradesarealsofoundinSpecificationA1049/A1049M.1.4Supplementaryrequirementsareprovidedforusewhenadditionaltestingorinspectionisdesired.Theseshallapplyonlywhenspecifiedindividuallybythepurchaserintheorder.1.5Thisspecificationisexpressedinbothinch-poundunitsandinSIunits.However,unlesstheorderspecifiestheapplicable“M”specificationdesignation(SIunits),themate-rialshallbefurnishedtoinch-poundunits.1.6ThevaluesstatedineitherSIunits...
