Designation:A1000/A1000M−11StandardSpecificationforSteelWire,CarbonandAlloySpecialtySpringQuality1ThisstandardisissuedunderthefixeddesignationA1000/A1000M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecificationcoversfourdifferentgradesofroundandshapedplaincarbonandalloysteelspringwire,uniforminqualityandtemper,intendedforthemanufactureofmechanicalspringsthatcanwithstandmoderatefatiguestressesoversomerelativelylownumberofcycles.ThequalitylevelisbetweenthecommercialqualitygradesofwiresuchasSpecificationsA401/A401M,A231/A231M,andA229/A229MandthevalvespringqualitygradessuchSpecificationsasA230/A230M,A232/A232M,andA877/A877M.ItissimilartothegradeTD(referencedinEN10270-2)intendedformediumfatiguelevels,suchasrequiredforclutchsprings.Thiswireshallbeeitherintheannealedandcold-drawnorquenchedandtemperedconditionasspecifiedbypurchaser.1.2ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.2.ReferencedDocuments2.1ASTMStandards:2A229/A229MSpecificationforSteelWire,QuenchedandTemperedforMechanicalSpringsA230/A230MSpecificationforSteelWire,Oil-TemperedCarbonValveSpringQualityA231/A231MSpecificationforChromium-VanadiumAlloySteelSpringWireA232/A232MSpecificationforChromium-VanadiumAlloySteelValveSpringQualityWireA370TestMethodsandDefinitionsforMechanicalTestingofSteelProductsA401/A401MSpecificationforSteelWire,Chromium-SiliconAlloyA700PracticesforPackaging,Marking,andLoadingMeth-odsforSteelProductsforShipmentA751TestMethods,Practices,andTerminologyforChemi-calAnalysisofSteelProductsA877/A877MSpecificationforSteelWire,Chromium-SiliconAlloy,Chrome...
