Designation:B387−18StandardSpecificationforMolybdenumandMolybdenumAlloyBar,Rod,andWire1ThisstandardisissuedunderthefixeddesignationB387;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecificationcoversunalloyedmolybdenumandmolybdenumalloybar,rod,andwireasfollows:1.1.1Molybdenum360—Unalloyedvacuumarc-castmo-lybdenum.1.1.2Molybdenum361—Unalloyedpowdermetallurgymo-lybdenum.1.1.3MolybdenumAlloy363—Vacuumarc-castmolybde-num–0.5%titanium–0.1%zirconium(TZM)alloy.1.1.4MolybdenumAlloy364—Powdermetallurgymolyb-denum–0.5%titanium–0.1%zirconium(TZM)alloy.1.1.5Molybdenum365—Unalloyedvacuumarc-castmolybdenum,lowcarbon.1.1.6MolybdenumAlloy366—Vacuumarc-castmolybdenum,30%tungstenalloy.1.2Thisspecificationcoverswirenosmallerthan0.020in.(0.51mm)indiameterorofequivalentcross-sectionalarea.SpecificationF289coversdiametersupto0.020in.(0.51mm).1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.4Thefollowingprecautionarycaveatpertainsonlytothetestmethodportionsofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafety,health,andenviron-mentalpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2E8TestMethodsforTensionTestingofMetallicMaterials[Metric]E0008_E0008ME29Prac...
