ASTM B108-2002

Designation:B108–02StandardSpecificationforAluminum-AlloyPermanentMoldCastings1ThisstandardisissuedunderthefixeddesignationB108;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scope*1.1Thisspecification2coversaluminum-alloypermanentmoldcastingsdesignatedasshowninTable1.1.2AlloyandtemperdesignationsareinaccordancewithANSIH35.1.TheequivalentunifiednumberingsystemalloydesignationsareinaccordancewithPracticeE527.1.3Foracceptancecriteriaforinclusionofnewaluminumandaluminumalloysandtheirpropertiesinthisspecification,seeAnnexA1andAnnexA2.1.4Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplicabil-ityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1Thefollowingdocumentsoftheissueineffectonthedateofcastingpurchaseformapartofthisspecificationtotheextentreferencedherein:2.2ASTMStandards:B179SpecificationforAluminumAlloysinIngotandMoltenFormsforCastingsfromallCastingProcesses3B275PracticeforCodificationofCertainNonferrousMet-alsandAlloys,CastandWrought3B557TestMethodsforTensionTestingWroughtandCastAluminum-andMagnesium-AlloyProducts3B660PracticesforPackaging/PackingofAluminumandMagnesiumProducts3B917PracticeforHeatTreatmentofAluminum-AlloyCastingsfromAllProcesses3E29PracticeforUsingSignificantDigitsinTestDatatoDetermineConformancewithSpecifications4E34TestMethodsforChemicalAnalysisofAluminumandAluminum-BaseAlloys5E88PracticeforSamplingNonferrousMetalsandAlloysinCastFormforDeterminationofChemicalComposition5E94GuideforRadiographicTesting6E155ReferenceRadiographsforInspectionofAluminumandMagnesiumCastings6E165TestMethodforLiquidPenetrantExamination6E227TestMethodforOpticalEmissionSpectrometricAnalysisofAluminumandAluminumAlloysbythePoint-to-PlaneTechnique5E527PracticeforNumberingMetalsandAlloys(UNS)7E607TestMethodforOpticalEmissionSpectrometricAnalysisofAluminumandAluminumAlloysbythePoint-to-PlaneTechnique,NitrogenAtmosphere8E716PracticesforSamplingAluminumandAluminumAlloysforSpectrochemicalAnalysis8E1251TestMethodforOpticalEmissionSpectrometricAnalysisofAluminumandAluminumAlloysbytheArgonAtmosphere,Point-to-Plane,UnipolarSelf-InitiatingCa-pacitorDischarge82.3ANSIStandard:H35.1AlloyandTemperDesignationSystemsforAlumi-num92.4MilitaryStandards:9MIL-STD-129MarkingforShipmentandStorageMIL-STD-276ImpregnationofPorousNonferrousMetalCastingsMIL-STD-278WeldingandAlliedProcessesforMachineryforShipsMIL-I-13857ImpregnationofMetalCastings2.5FederalStandard:101ThisspecificationisunderthejurisdictionofASTMCommitteeB07onLightMetalsandAlloysandisthedirectresponsibilityofSubcommitteeB07.01onAluminumAlloyIngotsandCastings.CurrenteditionapprovedDec.10,2002.PublishedMarch2003.Originallyapprovedin1936.Lastpreviouseditionapprovedin2001asB108–01a.2ForASMEBoilerandPressureCodeapplicationseerelatedSB-108.3AnnualBookofASTMStandards,Vol02.02.4AnnualBookofASTMStandards,Vol14.02.5AnnualBookofASTMStandards,Vol03.05.6AnnualBookofASTMStandards,Vol03.03.7AnnualBookofASTMStandards,Vol01.01.8AnnualBookofASTMStandards,Vol03.06.9AvailablefromAmericanNationalStandardsInstitute,11W.42ndSt.,13thFloor,NY10036.10AvailablefromStandardizationDocumentsOrderDesk,Bldg.4,SectionD,700RobbinsAve.,Philadelphia,PA19111-5094,Attn:NPODS.1*ASummaryofChangessectionappearsattheendofthisstandard.Copyright©ASTMInternational,100BarrHarborDrive,POBoxC700,WestConshohocken,PA19428-2959,UnitedStates.FedStd.No.123MarkingforShipment(CivilAgencies)3.Terminology3.1Definitions:3.1.1permanentmoldcasting—ametalobjectproducedbyintroducingmoltenmetalbygravityorlowpressureintoamoldconstructedofdurablematerial,usuallyironorsteel,andallowingittosolidify.3.1.2semi-permanentmoldcasting—apermanentmoldcastingwhichismadeusinganexpendablecoresuchassand.4.OrderingInformation4.1Ordersformaterialunderthisspecificationshallincludethefollowinginformation:4.1.1Thisspecificationdesignation(whichincludesthenumber,theyear,andtherevisionletter,ifapplicable),4.1.2Alloy(seeSection7andTable1),4.1.3Temper(seeSection11andTable2),4.1.4Applicabledrawingorpartnumber,4.1.5Thequantityineitherpiecesorpounds.4.2Additionally,ordersformaterialtothisspecificationshallincludethefollowinginformationwhenrequiredbythepurchaser.4.2.1Whetheryieldstrengthtestsarerequired(see11.1andTable2,FootnoteF),4.2.2Whethercastingsortestbars,orboth,aretobeartificiallyagedforAlloys705.0-T5,707.0-T5,and713.0-T5(see11.3),4.2.3Whethertestsp