Designation:B423−11(Reapproved2016)StandardSpecificationforNickel-Iron-Chromium-Molybdenum-CopperAlloy(UNSN08825,N08221,andN06845)SeamlessPipeandTube1ThisstandardisissuedunderthefixeddesignationB423;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecification2coversnickel-iron-chromium-molybdenum-copperalloys(UNSN08825,N08221,andN06845)3intheformofcold-workedandhot-finishedseam-lesspipeandtubeintendedforgeneralcorrosiveservice.ThegeneralrequirementsforpipeandtubearecoveredinSpeci-ficationB829.1.2Thevaluesstatedininch-poundunitsaretoberegardedasstandard.ThevaluesgiveninparenthesesaremathematicalconversionstoSIunitsthatareprovidedforinformationonlyandarenotconsideredstandard.1.3Thefollowingprecautionarycaveatpertainsonlytothetestmethodsportion,Section9,ofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.ItistheresponsibilityoftheuserofthisstandardtobecomefamiliarwithallhazardsincludingthoseidentifiedintheappropriateSafetyDataSheet(SDS)forthisproduct/materialasprovidedbythemanufacturer,toestablishappropriatesafetyandhealthpractices,anddeter-minetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:4B829SpecificationforGeneralRequirementsforNickelandNickelAlloysSeamlessPipeandTube3.GeneralRequirement3.1Materialfurnishedunderthisspecificationshallcon-formtotheapplicablerequirementsofSpecificationB829unlessotherwiseprovidedherein.4.OrderingInformation4.1Itistheresponsibilityofthepurchasertospecifyallrequirementsthatarenecessaryforthesafeandsatisfactoryperformanceofmaterialorderedunderthisspecification.Examplesofsuchrequirementsinclude,butarenotlimitedto,thefollowing:4.1.1AlloynameorUNSnumber,4.1.2ASTMdesignation,4.1.3Condition(seeAppendixX2),4.1.4Finish(seeAppend...
