Designation:B658/B658M−11(Reapproved2016)StandardSpecificationforSeamlessandWeldedZirconiumandZirconiumAlloyPipe1ThisstandardisissuedunderthefixeddesignationB658/B658M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecification2coversthreegradesofseamlessandweldedzirconiumpipe.1.2Unlessasingleunitisused,forexamplecorrosionmassgaininmg/dm2,thevaluesstatedineitherinch-poundorSIunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemarenotexactequivalents;thereforeeachsystemmustbeusedindependentlyoftheother.SIvaluescannotbemixedwithinch-poundvalues.1.3Thefollowingprecautionarycaveatpertainsonlytothetestmethodsportionsofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:3B614PracticeforDescalingandCleaningZirconiumandZirconiumAlloySurfacesE8/E8MTestMethodsforTensionTestingofMetallicMa-terialsE29PracticeforUsingSignificantDigitsinTestDatatoDetermineConformancewithSpecificationsE2626GuideforSpectrometricAnalysisofReactiveandRefractoryMetals2.2ANSIStandard:B36.19StainlessSteelPipe42.3ASMEStandard:ASMEBoilerandPressureVesselCode,SectionVIII5ASMEBoilerandPressureVesselCode,SectionIX53.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1annealed,n—forpurposesofthisspecification“an-nealed”denotesmaterialthatexhibitsarecrystallizedgrainstructure.3.2LotDefinitions:3.2.1pipe,n—alotshallconsistofamaterialofthesamesize,shape,condition,andfinishproducedfromthesameingotorpowderblendbythesamereductionscheduleandthesameheattreatmentparameters.Unlessotherwiseagreedbetweenmanufacturerandpurchaser,alots...
