Designation:B422/B422M−17StandardSpecificationforCopper-Aluminum-Silicon-CobaltAlloy,Copper-Nickel-Silicon-MagnesiumAlloy,Copper-Nickel-SiliconAlloy,Copper-Nickel-Aluminum-MagnesiumAlloy,andCopper-Nickel-TinAlloySheetandStrip1ThisstandardisissuedunderthefixeddesignationB422/B422M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thisspecificationestablishestherequirementsfor2Cop-perAlloyUNSNos.C19002,C19010,C19015,C19020,C19025,C63800,C64725,C70250,C70260,C70265,C70310,andC70350sheetandstrip.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.3Thefollowingsafetyhazardcaveatpertainsonlytothetestmethod(s)describedinthisspecification.1.3.1Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:3B248SpecificationforGeneralRequirementsforWroughtCopperandCopper-AlloyPlate,Sheet,Strip,andRolledBarB248MSpecificationforGeneralRequirementsforWroughtCopperandCopper-AlloyPlate,Sheet,Strip,andRolledBar(Metric)B846TerminologyforCopperandCopperAlloysE527PracticeforNumberingMetalsandA...
