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1、Designation:B23?00(Reapproved2014)StardSpecificationfWhiteMetalBearingAlloys(KnownCommerciallyas“BabbittMetal”)1ThisstardisissuedunderthefixeddesignationB23thenumberimmediatelyfollowingthedesignationindicatestheyearofigi

2、naladoptioninthecaseofrevisiontheyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperepsilon()indicatesaneditialchangesincethelastrevisionreapproval.ThisstardhasbeenapprovedfusebyagenciesoftheU.

3、S.DepartmentofDefense.1.Scope1.1Thisspecificationcoverseighttypicalwhitemetalbearingalloysinbaringotfmknowncommerciallyas“babbittmetal.”Thealloysarespecifiedcoveringtherangecommerciallyusedaredesignatedbythealloynumberss

4、howninTable1.1.2Thevaluesstatedininchpoundunitsaretoberegardedasstard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedfinfmationonlyarenotconsideredstard.1.3Thisstarddoesnotpurpttoaddressallo

5、fthesafetyconcernsifanyassociatedwithitsuse.ItistheresponsibilityoftheuserofthisstardtobecomefamiliarwithallhazardsincludingthoseidentifiedintheappropriateMaterialSafetyDataSheet(MSDS)fthisproductmaterialasprovidedbythem

6、anufacturertoestablishappropriatesafetyhealthpracticesdeterminetheapplicabilityofregulatylimitationspritouse.2.ReferencedDocuments2.1ASTMStards:2E29PracticefUsingSignificantDigitsinTestDatatoDetermineConfmancewithSpecifi

7、cationsE57MethodsfChemicalAnalysisofWhiteMetalBearingAlloys(Withdrawn1986)33.deringInfmation3.1dersfmaterialsunderthisspecificationshallincludethefollowinginfmation:3.1.1Nameofmaterial(whitemetalbearingalloy)3.1.2Fmnomin

8、alweightofindividualbars3.1.3Quantity3.1.4Alloynumber3.1.5Inspectionrequired(Section9)3.1.6Certificationrequired(Section10)3.1.7Markingrequired(Section11)3.1.8ASTMdesignationyearofissue.4.MaterialsManufacture4.1Thebarsin

9、gotsshallbemadeinaccdancewithsuchpracticeastoobtainthechemicalcompositionweightdimensionsasprescribedinthisspecification.4.2Thebarsingotsshallbeasunifminqualityaspracticable.5.ChemicalComposition5.1Thealloyscoveredbythis

10、specificationshallconfmtotherequirementsfchemicalcompositionprescribedinTable1.5.2ByagreementbetweenmanufacturerpurchaseranalysismayberequiredlimitsestablishedfelementsnotspecifiedinTable1.6.DimensionsWeights6.1Thebabbit

11、tshallbefurnishedinbarsofaconvenientweightsizefhling.Unlessotherwiseagreeduponnounnotchedbarshallexceed10lb(4.5kg)inweightnnotchedbarexceed15lb(6.8kg).6.2Bymutualagreementbabbittmaybefurnishedinsmallroundbarsabout3.5in.(

12、90mm)indiameter.7.Sampling7.1Threebarsshallbeedtorepresentashipmentoflessthan1000lb(450kg)fivebarstorepresentashipmentof1000lbto10000lb(4500kg)inclusivetenbarstorepresentashipmentofover10000lbtoonecarload.7.2Sawcutsshall

13、bemadeatpointsinthebarsasindicatedinFig.1.Nolubricantsshallbeusedfsawing.Thesavings1ThisspecificationisunderthejurisdictionofASTMCommitteeB02onNonferrousMetalsAlloysisthedirectresponsibilityofSubcommitteeB02.02onRefinedL

14、eadTinAntimonyTheirAlloys.CurrenteditionapprovedOct.12014.PublishedOctober2014.iginallyapprovedin1926.Lastpreviouseditionapprovedin2010asB23–00(2010).DOI:10.1520B002300R14.2FreferencedASTMstardsvisittheASTMwebsitewww.ast

15、m.gcontactASTMCustomerServiceat.FAnnualBookofASTMStardsvolumeinfmationrefertothestard’sDocumentSummarypageontheASTMwebsite.3Thelastapprovedversionofthishisticalstardisreferencedonwww.astm.g.Copyright?ASTMInternational100

16、BarrHarbDrivePOBoxC700WestConshohockenPA194282959.UnitedStates111.Certification11.1Whenspecifiedinthepurchasedercontractaproducer’ssupplier’scertificationshallbefurnishedtothepurchaserthatthematerialwasmanufacturedsample

17、dtestedinspectedinaccdancewiththisspecificationhasbeenfoundtomeettherequirements.Whenspecifiedinthepurchasedercontractareptofthetestresultsshallbefurnished.12.ProductMarking12.1Thenametrademarkofthemanufacturershallbecas

18、toneachbar.Thenumericaldesignationofthealloysuppliedshallbestampedcastoneachbarfidentification.13.Keywds13.1Rabbitmetalbarbearingalloyschemicalcompositioningotlead–tin–antimonyalloysphysicalpropertiestin–antimony–coppera

19、lloysAPPENDIX(NonmatyInfmation)X1.PROPERTIESOFWHITEMETALBEARINGALLOYSX1.1ThedatainTableX1.1donotconstituteapartofthisspecification.Theyaregivenmerelytoindicatetothepurchaserthephysicalpropertiesofthevariousalloysspecifie

20、dwhichcanbeexpectedofcarefullymanufacturedalloysofthefmulasindicatedtoconstituteaguidetothepurchaseriningthegradebestsuitedfmeetingtheserviceconditionfwhichthebabbittmetalistobeused.Alloys1to8werepreparedattheNationalBur

21、eauofStardsfrompureBanktinhighgrade“Star”antimonyacommerciallypurelead(99.94%Pub)thevaluesgivenaretheresultsoftestsmadeintheBureaulabaties.Dataonalloy15theliquidstemperatureofalloy1havebeenaddedbasedonwkatotherlabaties.A

22、llfiguresaresubjecttorevision.TABLEX1.1CompositionPhysicalPropertiesAofWhiteMetalBearingAlloysAlloyNumberBSpecifiedNominalCompositionofAlloys%SpecificGravityCCompositionofAlloysTested%YieldPointpsiD(MPa)TinAntimonyLeadCo

23、pperArsenicTinAntimonyLeadCopper68F(20C)212F(100C)191.04.54.57.3490.94.52none4.564400(30.3)2650(18.3)289.07.53.57.3989.27.40.033.16100(42.0)3000(20.6)384.08.08.07.4683.48.20.038.36600(45.5)3150(21.7)710.015.0remainder.45

24、9.7310.014.575.00.113550(24.5)1600(11.0)85.015.0remainder.4510.045.214.979.40.143400(23.4)1750(12.1)151.016.0remainder1.010.05AlloyNumberBJohnson’sApparentElasticLimitpsi(MPa)EUltimateStrengthinCompressionFBrinellHardnes

25、sGMeltingPointF(C)TemperatureofCompleteLiquefactionF(C)ProperPouringTemperatureF(C)68F(20C)212F(100C)68F(20C)212F(100C)68F(20C)212F(100C)12450(16.9)1050(7.2)12850(88.6)6950(47.9)17.08.0433(223)700(371)825(441)23350(23.1)

26、1100(7.6)14900(102.7)8700(60.0)24.512.0466(241)669(354)795(424)35350(36.9)1300(9.0)17600(121.3)9900(68.3)27.014.5464(240)792(422)915(491)72500(17.2)1350(9.3)15650(107.9)6150(42.4)22.510.5464(240)514(268)640(338)82650(18.

27、3)1200(8.3)15600(107.6)6150(42.4)20.09.5459(237)522(272)645(341)1521.013.0479(248)538(281)662(350)AThecompressiontestspecimenswerecylinders1.5in.(38mm)inlength0.5in.(13mm)indiametermachinedfromchillcastings2in.(51mm)inle

28、ngth0.75in.(19mm)indiameter.TheBrinelltestsweremadeonthebottomofparallelmachinedspecimenscastinamold2in.(51mm)indiameter0.625in.(16mm)deepatroomtemperature.BDatanotavailableonAlloyNumbers1113.CThespecificgravitymultiplie

29、dby0.0361equalsthedensityinpoundspercubicinch.DThevaluesfyieldpointweretakenfromstressstraincurvesatadefmationof0.125%ofgagelength.EJohnson’sapparentelasticlimitistakenastheunitstressatthepointwheretheslopeofthetangentto

30、thecurveis2?3timesitsslopeattheigin.FTheultimatestrengthvaluesweretakenastheunitloadnecessarytoproduceadefmationof25%ofthelengthofthespecimen.GThesevaluesaretheaverageBrinellnumberofthreeimpressionsoneachalloyusinga10mmb

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