Designation:A694/A694M−16StandardSpecificationforCarbonandAlloySteelForgingsforPipeFlanges,Fittings,Valves,andPartsforHigh-PressureTransmissionService1ThisstandardisissuedunderthefixeddesignationA694/A694M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thisspecificationcoversforgedorrolledsteelpipeflanges,forgedfittings,valves,andpartssuitableforusewithhigh-strengthtransmission-servicepipe.Includedareflanges,fittings,andsimilarpartsorderedeithertodimensionsspecifiedbythepurchaserortoASMEorMSSdimensionalstandardsreferencedinSection2.1.2Severalgradesofmaterial,basedonminimumyieldstrengthrequirements,arecovered,asindicatedinTable1.1.3SupplementaryRequirementsareprovided.Supplemen-taryRequirementS1isprovidedforusewhenpurchaserapprovalisrequiredforrepairwelding.1.4Thisspecificationisexpressedinbothinch-poundunitsandinSIunits.However,unlesstheorderspecifiestheapplicable“M”specificationdesignation(SIunits),themate-rialshallbefurnishedtoinch-poundunits.1.5ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Withinthetext,theSIunitsareshowninbrackets.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnonconformancewiththestandard.2.ReferencedDocuments2.1InadditiontothosereferencedocumentslistedinSpecificationA961/A961M,thefollowinglistofstandardsapplytothisspecification:2.2ASTMStandards:2A53/A53MSpecificationforPipe,Steel,BlackandHot-Dipped,Zinc-Coated,WeldedandSeamlessA106/A106MSpecificationforSeamlessCarbonSteelPipeforHigh-TemperatureServiceA381SpecificationforMetal-Arc-WeldedSteelPipeforUseWithHigh-PressureTransmissionSystemsA707/A707MSpecificationforForgedCarbonandAlloySteelFlangesforLow-TemperatureServiceA788/A788MSpecifica...
