Designation:B240−13StandardSpecificationforZincandZinc-Aluminum(ZA)AlloysinIngotFormforFoundryandDieCastings1ThisstandardisissuedunderthefixeddesignationB240;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheDepartmentofDefense.1.Scope*1.1Thisspecificationcoverscommercialzincandzinc-aluminum(ZA)alloysiningotformforremeltingforthemanufactureofpressurediecastings,foundrycastingsandcontinuouscastbarstockasdesignatedandspecifiedinTable1.Sevenalloycompositionsarespecified,designatedasfollows:CommonTraditionalASTMAUNSAAlloy3Zamak3AG40AZ33524Alloy7Zamak7AG40BZ33526Alloy5Zamak5AC41AZ35532Alloy2Zamak2AC43AZ35544ZA-8ZA-8...Z35637ZA-12ZA-12...Z35632ZA-27ZA-27...Z35842ASeeTable1,footnoteB.1.2ZincalloysZ33524,Z33526,Z35532,andZ35544areusedprimarilyforremeltinginthemanufactureofpressurediecastings.Zinc-aluminumalloysZ35637,Z35632,andZ35842areusedforremeltinginthemanufactureofbothfoundryandpressurediecastings.CastingsmadefromtheseingotsarespecifiedinSpecificationB86,StandardSpecificationforZincandZinc-AluminumAlloysforFoundryandDieCastings.1.3Thevaluesstatedininch-poundunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Systemsofnomenclatureusedtodesignatezincandzinc-aluminum(ZA)alloysusedforcastingaredescribedinAppendixX1.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.ItistheresponsibilityoftheuserofthisstandardtobecomefamiliarwithallhazardsincludingthoseidentifiedintheappropriateMaterialSafetyDataSheet(MSDS)forthisproduct/materialasprovidedbythemanufacturer,toestablishappropriatesafetyandhealthpractices,anddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1Thefollowingdocumentsoftheissueineffectondataoforderacceptancefor...
