Designation:A660/A660M−11(Reapproved2016)StandardSpecificationforCentrifugallyCastCarbonSteelPipeforHigh-TemperatureService1ThisstandardisissuedunderthefixeddesignationA660/A660M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecification2coverscarbonsteelpipemadebythecentrifugalcastingprocessintendedforuseinhigh-temperature,high-pressureservice.Pipeorderedunderthisspecificationshallbesuitableforfusionwelding,bending,andotherformingoperations.1.2Severalgradesofcarbonsteelsarecovered.TheircompositionsaregiveninTable1.1.3Supplementaryrequirements(S1toS9)ofanoptionalnatureareprovided.Thesupplementaryrequirementscallforadditionalteststobemade,andwhendesiredshallbesostatedintheorder,togetherwiththenumberofsuchtestsrequired.1.4Thevaluesstatedineitherinch-poundunitsorSIunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyofeachother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththespecification.2.ReferencedDocuments2.1ASTMStandards:3A530/A530MSpecificationforGeneralRequirementsforSpecializedCarbonandAlloySteelPipeE94GuideforRadiographicExaminationE114PracticeforUltrasonicPulse-EchoStraight-BeamContactTestingE125ReferencePhotographsforMagneticParticleIndica-tionsonFerrousCastingsE142MethodforControllingQualityofRadiographicTest-ing(Withdrawn2000)4E186ReferenceRadiographsforHeavy-Walled(2to41⁄2in.(50.8to114mm))SteelCastingsE381MethodofMacroetchTestingSteelBars,Billets,Blooms,andForgingsE446ReferenceRadiographsforSteelCastingsUpto2in.(50.8mm)inThickness2.2ANSIStandards:B36.10AmericanStandardforWeldedandSeamlessWroughtSteelPipe5B46.1SurfaceTexture52.3MSSStandards:SP-54QualityStandardforSteelCastingsforValves,Flang...
