Designation:B523/B523M−12aStandardSpecificationforSeamlessandWeldedZirconiumandZirconiumAlloyTubes1ThisstandardisissuedunderthefixeddesignationB523/B523M;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecification2coverstwogradesofzirconiumandzirconiumalloyseamlessandweldedtubes.1.2Unlessasingleunitisused,forexamplecorrosionmassgaininmg/dm2,thevaluesstatedineitherinch-poundorSIunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemarenotexactequivalents;therefore,eachsystemmustbeusedindependentlyoftheother.SIvaluescannotbemixedwithinch-poundvalues.1.3Thefollowingprecautionarycaveatpertainsonlytothetestmethodsportionofthisspecification:Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:3A370TestMethodsandDefinitionsforMechanicalTestingofSteelProductsB551/B551MSpecificationforZirconiumandZirconiumAlloyStrip,Sheet,andPlateB614PracticeforDescalingandCleaningZirconiumandZirconiumAlloySurfacesE8TestMethodsforTensionTestingofMetallicMaterialsE29PracticeforUsingSignificantDigitsinTestDatatoDetermineConformancewithSpecificationsE213PracticeforUltrasonicTestingofMetalPipeandTubingE426PracticeforElectromagnetic(Eddy-Current)Examina-tionofSeamlessandWeldedTubularProducts,Titanium,AusteniticStainlessSteelandSimilarAlloys3.Terminology3.1DefinitionsofTermsSpecifictoThisStandard:3.1.1annealed,n—forpurposesofthisspecification“annealed”denotesmaterialthatexhibitsarecrystallizedgrainstructure.3.2LotDefinitions:3.2.1tubes,n—alotshallconsistofamaterialofthesamesize,shape,condition,andfinishproducedfromthesameingotorpowderblen...
