Designation:A925−03(Reapproved2014)StandardSpecificationforZinc-5%Aluminum-MischmetalAlloy-CoatedSteelOverheadGroundWireStrand1ThisstandardisissuedunderthefixeddesignationA925;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationcovershigh-strength,extra-high-strength,andutilitiesgradesofconcentriclaysteelwirestrandcomposedofthreewiresorsevenwireswithClassA,ClassB,orClassCzinc-5%aluminum-mischmetal(Zn-5Al-MM)alloycoatingsspecificallyintendedforuseasoverheadgroundwiresorstaticwiresforelectricpowertransmissionlines.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.2.ReferencedDocuments2.1ASTMStandards:2A90/A90MTestMethodforWeight[Mass]ofCoatingonIronandSteelArticleswithZincorZinc-AlloyCoatingsA902TerminologyRelatingtoMetallicCoatedSteelProd-uctsB750SpecificationforGALFAN(Zinc-5%Aluminum-Mischmetal)AlloyinIngotFormforHot-DipCoatingsE27MethodforSpectrographicAnalysisofZincandZincAlloysbytheSolution-ResidueTechnique(Withdrawn1985)3E47TestMethodsforChemicalAnalysisofZincDie-CastingAlloys(Withdrawn1997)32.2OtherStandard:4GF-1StandardPracticeforDeterminationofCeriumandLanthanumCompositionsinGalfanAlloy(5-Al-0.04%La-0.04%Ce-BalSHGZn)3.Terminology3.1Definitions—Fordefinitionsoftermsusedinthisspeci-ficationrefertoTerminologyA902.4.OrderingInformation4.1Ordersforstrandpurchasedunderthisspecificationshallincludethefollowinginformation:4.1.1Quantityofeachsize,4.1.2Sizeandgradeofstrand(Table1),4.1.3ClassofZn-5Al-MMalloycoating(Section11andTable2),and4.1.4ASTMdesignationandyearofissue.5.MaterialsandManufacture5.1BaseMetal—Thebasemetalshallbesteelmadebyanycommerciallyacceptedsteelmakingprocessandofsuchqualityandpurityt...
