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1、Designation:B618B618M?14StardSpecificationfAluminumAlloyInvestmentCastings1ThisstardisissuedunderthefixeddesignationB618B618Mthenumberimmediatelyfollowingthedesignationindicatestheyearofiginaladoptioninthecaseofrevisiont

2、heyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperepsilon()indicatesaneditialchangesincethelastrevisionreapproval.ThisstardhasbeenapprovedfusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.

3、1ThisspecificationcoversaluminumalloyinvestmentcastingsdesignatedasshowninTable1.1.2Thisspecificationisfaluminumalloyinvestmentcastingsusedingeneralpurposeapplications.Itmaynotaddressthemechanicalpropertiesintegritytesti

4、ngverificationrequiredfhighlyloadedsafetycriticalapplications.1.3AlloytemperdesignationsareinaccdancewithANSIH35.1H35.1(M).TheequivalentUnifiedNumberingSystemalloydesignationsareinaccdancewithPracticeE527.1.4Unlesstheder

5、specifiesthe“M”specificationdesignationthematerialshallbefurnishedtotheinchpoundunits.1.5FacceptancecriteriafinclusionofnewaluminumaluminumalloystheirpropertiesinthisspecificationseeAnnexA1AnnexA2.1.6Units—Thevaluesstate

6、dineitherSIunitsinchpoundunitsaretoberegardedseparatelyasstard.Thevaluesstatedineachsystemmaynotbeexactequivalentstherefeeachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconfmanc

7、ewiththestard.1.7Thisstarddoesnotpurpttoaddressallofthesafetyconcernsifanyassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstardtoestablishappropriatesafetyhealthpracticesdeterminetheapplicabilityofregulatylimita

8、tionspritouse.2.ReferencedDocuments2.1Thefollowingdocumentsoftheissueineffectonthedateofpurchasefmapartofthisspecificationtotheextentreferencedherein:2.2ASTMStards:2B179SpecificationfAluminumAlloysinIngotMoltenFmsfCastin

9、gsfromAllCastingProcessesB275PracticefCodificationofCertainZincTinLeadDieCastingsB557TestMethodsfTensionTestingWroughtCastAluminumMagnesiumAlloyProductsB557MTestMethodsfTensionTestingWroughtCastAluminumMagnesiumAlloyProd

10、ucts(Metric)B660PracticesfPackagingPackingofAluminumMagnesiumProductsB881TerminologyRelatingtoAluminumMagnesiumAlloyProductsB917B917MPracticefHeatTreatmentofAluminumAlloyCastingsfromAllProcessesB985PracticefSamplingAlumi

11、numIngotsBilletsCastingsFinishedSemiFinishedWroughtAluminumProductsfCompositionalAnalysisD3951PracticefCommercialPackagingE29PracticefUsingSignificantDigitsinTestDatatoDetermineConfmancewithSpecificationsE34TestMethodsfC

12、hemicalAnalysisofAluminumAluminumBaseAlloysE94GuidefRadiographicExaminationE155ReferenceRadiographsfInspectionofAluminumMagnesiumCastingsE165PracticefLiquidPerantExaminationfGeneralIndustryE527PracticefNumberingMetalsAll

13、oysintheUnifiedNumberingSystem(UNS)E607TestMethodfAtomicEmissionSpectrometricAnalysisAluminumAlloysbythePointtoPlaneTechniqueNitrogenAtmosphere(Withdrawn2011)3E716PracticesfSamplingSamplePreparationofAluminumAluminumAllo

14、ysfDeterminationofChemicalCompositionbySpectrochemicalAnalysis1ThisspecificationisunderthejurisdictionofASTMCommitteeB07onLightMetalsAlloysisthedirectresponsibilityofSubcommitteeB07.01onAluminumAlloyIngotsCastings.Curren

15、teditionapprovedOct.12014.PublishedOctober2014.iginallyapprovedin1977.Lastpreviouseditionapprovedin2011asB618B618M–11a.DOI:10.1520B0618_B0618M14.2FreferencedASTMstardsvisittheASTMwebsitewww.astm.gcontactASTMCustomerServi

16、ceat.FAnnualBookofASTMStardsvolumeinfmationrefertothestard’sDocumentSummarypageontheASTMwebsite.3Thelastapprovedversionofthishisticalstardisreferencedonwww.astm.g.ASummaryofChangessectionappearsattheendofthisstardCopyrig

17、ht?ASTMInternational100BarrHarbDrivePOBoxC700WestConshohockenPA194282959.UnitedStates1E1251TestMethodfAnalysisofAluminumAluminumAlloysbySparkAtomicEmissionSpectrometryE2422DigitalReferenceImagesfInspectionofAluminumCasti

18、ngsIEEEASTMSI10StardfUseoftheInternationalSystemofUnits(SI):TheModernMetricSystem2.3ANSIStard:4H35.1H35.1(M)2006AmericanNationalStardAlloyTemperDesignationSystemsfAluminum2.4MilitaryStards:5MILSTD129MarkingfShipmentStage

19、MILSTD276ImpregnationofPousNonferrousMetalCastings2.5FederalStard:Fed.Std.No.123MarkingfShipment(CivilAgencies)52.6AMSStard:6AMS2771HeatTreatmentofAluminumAlloyCastings2.7NAVSEAStard:7S9074ARGIB010278RequirementsfFabrica

20、tionWeldingInspectionCastingInspectionRepairfMachineryPipingPressureVessels2.8OtherStards:8CENEN14242AluminumAluminumAlloys—ChemicalAnalysis—InductivelyCoupledPlasmaOpticalEmissionSpectralAnalysis3.Terminology3.1Definiti

21、ons—RefertoTerminologyB881fdefinitionsofproducttermsusedinthisspecification.3.2DefinitionsofTermsSpecifictoThisStard:3.2.1investmentcastingn—ametalobjectproducedbysurrounding(investing)anexpendablepattern(usuallywaxplast

22、ic)witharefractyslurrythatsetsatroomtemperatureafterwhichthepatternisremovedthroughtheuseofheatthenfillingtheresultingcavitywithmoltenmetalallowingittosolidify.4.deringInfmation4.1dersfmaterialunderthisspecificationshall

23、includethefollowinginfmation(1.41.6):4.1.1Thisspecificationdesignation(whichincludesthenumbertheyeartherevisionletterifapplicable)NOTE1—FinchpoundapplicationspecifySpecificationB618fmetricapplicationspecifySpecificationB

24、618M.Donotmixunits.4.1.2Alloy(Section7Table1)4.1.3Temper(Section10Table2[Table3])4.1.4Applicabledrawingpartnumber4.1.5Thequantityineitherpiecespounds[kilograms].4.2Additionallydersfmaterialtothisspecificationshallinclude

25、thefollowinginfmationwhenrequiredbythepurchaser:4.2.1Whetherchemicalanalysistensilepropertyreptsarerequired(Table1Table2[Table3])4.2.2Whethercastingstestspecimensbothmaybesuppliedintheartificiallyaged?T5temperfalloys705.

26、0707.0712.0713.0(10.2)4.2.3Whethertestspecimenscutfromcastingsarerequiredinadditiontoinsteadofseparatelycastspecimens(10.311.2)4.2.4WhetherheattreatmentistobeperfmedinaccdancewithAMS2771(Section15)4.2.5Whetherrepairsarep

27、ermissible(16.1)4.2.6Whetherinspectionisrequiredattheproducer’swks(18.1)4.2.7Whethersurfacerequirementsshallbecheckedagainstobservationalstardswheresuchstardsareestablished(19.1)4.2.8Whetherliquidperantinspectionisrequir

28、ed(19.3)4.2.9Whetherradiographicinspectionisrequiredifsotheradiographicgradeofcastingrequired(19.4Table4)4.2.10Whethercertificationisrequired(21.1)4.2.11Whetherfoundrycontrolisrequired(Section9)4.2.12WhetherPracticesB660

29、applyifsothelevelsofpreservationpackagingpackingrequired(23.3)4.2.13WhethermarkinginaccdancewithFed.Std.No.123PracticeD3951MILSTD129applies(23.3).5.ResponsibilityfQualityAssurance5.1ResponsibilityfInspectionTests—Unlesso

30、therwisespecifiedinthecontractpurchasedertheproducershallberesponsibleftheperfmanceofallinspectiontestrequirementsspecifiedherein.Exceptasotherwisespecifiedinthecontractdertheproducermayusehisownanyothersuitablefacilitie

31、sftheperfmanceoftheinspectiontestrequirementsspecifiedhereinunlessdisapprovedbythepurchaser.Thepurchasershallhavetherighttoperfmanyoftheinspectionstestssetfthinthisspecificationwheresuchinspectionsaredeemednecessarytocon

32、firmthatmaterialconfmstoprescribedrequirements.6.MaterialsManufacture6.1Theresponsibilityoffurnishingcastingsthatcanbelaidoutmachinedtothefinisheddimensionswithinthepermissiblevariationsspecifiedasshownontheblueprintsdra

33、wingsshallrestwiththeproducerexceptwherepatternequipmentisfurnishedbythepurchaser.6.1.1UnlessotherwisespecifiedonlyaluminumalloyconfmingtotherequirementsofSpecificationB179producer’sfoundryscrap(identifiedasbeingmadefrom

34、alloyconfmingtoSpecificationB179)shallbeusedintheremeltingfurnacefromwhichmoltenmetalistakenfpouringdirectlyintocastings.Additionsofsmallamountsofmodifiersgrainrefiningelementsalloysarepermitted.4AvailablefromAluminumAss

35、ociationInc.1525WilsonBlvd.Suite600ArlingtonVA22209:www.aluminum.g.5AvailablefromStardizationDocumentsderDeskDODSSPBldg.4SectionD700RobbinsAve.PhiladelphiaPA191115098:www.dodssp.daps.mil.6AvailablefromSocietyofAutomotive

36、Engineers(SAE)400CommonwealthDr.WarrendalePA150960001:www.sae.g.7AvailablefromNavalSeaSystemsComm(NAVSEA)1333IsaacHullAve.SEWashingtonDC20376:www.navsea.navy.mil.8AvailablefromEuropeanCommitteefStardization(CEN)36RuedeSt

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