Designation:A1103/A1103M−16StandardSpecificationforSeamlessCold-FinishedCarbonSteelStructuralFrameTubingforAutomotiveRacingApplications1ThisstandardisissuedunderthefixeddesignationA1103/A1103M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationisforseamlesscold-finishedcarbonsteelroundstructuralframetubingforautomotiveracingapplications.ThechemicalrequirementsarelistedinTable1.Tubingmaybeusedforotherapplicationsrequiringsimilartolerancesandproperties.Thespecificationincludesrequire-mentsforheattreatmentandmechanicalpropertiestomeettheneedsfortheapplication.Thetubingisintendedtobebentandjoinedbywelding.Theweldingprocedureshallbesuitableforthegrade,theconditionofthecomponents,andtheintendedservice.1.2Thetubingoutsidediametersizerangeisfrom0.625to2.0in.[16to50mm].Thewallthicknessshallbespecifiedasaminimumwall.1.3Optionalsupplementaryrequirementsmaybeprovidedand,whenoneormoreofthesearedesired,eachshallbesostatedintheorder.1.4Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.Theinch-poundunitsshallapplyunlessthe“M”designationofthisspecificationisspecifiedintheorder.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2A450/A450MSpecificationforGeneralRequirementsforCarbonandLowAlloySteelTubesA751TestMethods,Practices,andTerminologyforChemi-calAnalysisofSteelProd...
