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1、Designation:B249/B249M–02StandardSpecificationforGeneralRequirementsforWroughtCopperandCopper-1AlloyRod,Bar,ShapesandForgingsThisstandardisissuedunderthe®xeddesignationB249/B249M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptio
2、nor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scop
3、e*B16/B16MSpeci®cationforFree-CuttingBrassRod,Bar,31.1Thisspeci®cation2establishesthegeneralrequirementsandShapesforUseinScrewMachinescommontowroughtcopperandcopperalloyrod,bar,shapes,B21/B21MSpeci®cationforNavalBrassRod,Bar,andShapes3andforgingswhichsha
4、llapplytoSpeci®cationsB16/B16M,B21/B21M,B98/B98M,B124/B124M,B138/B138M,B98/B98MSpeci®cationforCopper-SiliconAlloyRod,Bar,andShapes3B139/B139M,B140/B140M,B150,B151/B151M,B196/B196M,B283,B301/B301M,B371,B411/B411M,B441,B124/B124MSpeci®cationforCopperandCop
5、per-AlloyForgingRod,Bar,andShapes3B453/B453M,B455,andB570totheextentreferencedtherein.B138/B138MSpeci®cationforManganeseBronzeRod,Bar,andShapes31.2Thechemicalcomposition,physicalandmechanicalproperties,andallotherrequirementsnotincludedinthisB139/B139MSp
6、eci®cationforPhosphorBronzeRod,Bar,andShapes3speci®cationareprescribedintheproductspeci®cation.1.3Thevaluesstatedininch-poundsunitsorSIunitsaretoB140/B140MSpeci®cationforCopper-Zinc-Lead(RedBrassorHardwareBronze)Rod,Bar,andShapes3beregardedseparatelyinth
7、estandard.WithinthetexttheSIvaluesaregiveninbrackets.ThevaluesstatedineachsystemB150Speci®cationforAluminumBronzeRod,Bar,andShapes3ofunitsarenotexactequivalents;eachsystemisindependentoftheother.CombiningvaluesfromthetwosystemsmayB151/B151MSpeci®cationfo
8、rCopper-Nickel-ZincAlloy(NickelSilver)andCopper-NickelRodandBar3resultinnonconformancewiththespeci®cation.B154TestMethodforMercurousNitrateTestforCopperNOTE1ÐRequirementsfor¯atwire(de®nedas¯atproductsuptoandandCopperAlloys
