Designation:B403−12StandardSpecificationforMagnesium-AlloyInvestmentCastings1ThisstandardisissuedunderthefixeddesignationB403;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scope*1.1Thisspecificationcoversmagnesium-alloyinvestmentcastingsdesignatedasshowninTable1.1.2AlloydesignationsareinaccordancewithPracticeE527;temperdesignationsareinaccordancewithPracticeB296.1.3Thevaluesstatedininch-poundunitsaretoberegardedasthestandard.TheSIvaluesinparenthesesareforinforma-tiononly.2.ReferencedDocuments2.1Thefollowingdocumentsoftheissueineffectonthedateoforderacceptanceformapartofthisspecificationtotheextentreferencedherein:2.2ASTMStandards:2B296PracticeforTemperDesignationsofMagnesiumAlloys,CastandWroughtB557TestMethodsforTensionTestingWroughtandCastAluminum-andMagnesium-AlloyProductsB660PracticesforPackaging/PackingofAluminumandMagnesiumProductsB661PracticeforHeatTreatmentofMagnesiumAlloysB666/B666MPracticeforIdentificationMarkingofAlumi-numandMagnesiumProductsB951PracticeforCodificationofUnalloyedMagnesiumandMagnesium-Alloys,CastandWroughtB953PracticeforSamplingMagnesiumandMagnesiumAlloysforSpectrochemicalAnalysisB954TestMethodforAnalysisofMagnesiumandMagne-siumAlloysbyAtomicEmissionSpectrometryD3951PracticeforCommercialPackagingE29PracticeforUsingSignificantDigitsinTestDatatoDetermineConformancewithSpecificationsE88PracticeforSamplingNonferrousMetalsandAlloysinCastFormforDeterminationofChemicalCompositionE94GuideforRadiographicExaminationE155ReferenceRadiographsforInspectionofAluminumandMagnesiumCastingsE165PracticeforLiquidPenetrantExaminationforGeneralIndustryE527PracticeforNumberingMetalsandAlloysintheUnifiedNumberingSystem(UNS)2.3FederalStandards:Fed.Std.No.123MarkingforShipping(CivilAgenc...
