Designation:B272−12StandardSpecificationforCopperFlatProductswithFinished(RolledorDrawn)Edges(FlatWireandStrip)1ThisstandardisissuedunderthefixeddesignationB272;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope*1.1Thisspecificationestablishestherequirementsforcop-perproducts,flatwireandstrip,withrolledordrawnfinishededgesproducedforgeneralapplication.1.1.1TheproductisproducedinUNSCopperNos.C10100,C10200,C10300,C10500,C10700,C10800,C11000,C11040,C12200,andC14200unlessotherwiseestablishedbyagreementbetweenmanufacturerandpurchaser.1.2Units—Valuesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunits,whichareprovidedforinformationonlyandarenotconsideredstandard.NOTE1—Whenacopperotherthanthatlistedin1.1.1isdesignatedbythepurchaser,theresultingproductshallconformtothephysical,mechanical,performance,dimensional,andtolerancerequirementsperagreementbetweenthemanufacturerandpurchaser.2.ReferencedDocuments2.1ASTMStandards:2B49SpecificationforCopperRodDrawingStockforElec-tricalPurposesB170SpecificationforOxygen-FreeElectrolyticCopper—RefineryShapesB193TestMethodforResistivityofElectricalConductorMaterialsB248SpecificationforGeneralRequirementsforWroughtCopperandCopper-AlloyPlate,Sheet,Strip,andRolledBarB250/B250MSpecificationforGeneralRequirementsforWroughtCopperAlloyWireB577TestMethodsforDetectionofCuprousOxide(Hydro-genEmbrittlementSusceptibility)inCopperB846TerminologyforCopperandCopperAlloysB950GuideforEditorialProceduresandFormofProductSpecificationsforCopperandCopperAlloysE8/E8MTestMethodsforTensionTestingofMetallicMa-terialsE18TestMethodsforRockwellHardnessofMetallicMa-terialsE53TestMethodforDeterminationofCopperinUnalloyedCop...
