ASTM_B_626_-_17a.pdf

Designation:B62617aStandard Specification forWelded Nickel and Nickel-Cobalt Alloy Tube1This standard is issued under the fixed designation B626;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers welded tubes made from thenickel and nickel-cobalt alloys(UNS N10001,UNS N10242,UNS N10665,UNS N12160,UNS N10629,UNS N10624,UNS N10675,UNS N10276,UNS N06455,UNS N06007,UNS N06975,UNS N08320,UNS N06985,UNS N06002,UNS N06022,UNS N06030,UNS N06035,UNS N06044,UNS N06058,UNS N06059,UNS N06200,UNS N06617,UNS N10362,UNS N06210,UNS N08031,UNS N08034,UNS R30556,UNS N06230,UNS N06686,and UNSR20033)2listed in Table 1 intended for heat exchanger andcondenser tubes and tubes for general corrosive service forheat-resisting applications.1.2 This specification covers tube18to 312in.(3.2 to 88.9mm)in outside diameter and 0.015 to 0.148 in.(0.41 to 3.7mm)inclusive,in wall thickness.1.3 The values stated in inch-pound units are to be regardedas standard.The values given in parentheses are mathematicalconversions to SI units that are provided for information onlyand are not considered standard.1.4 This standard does not purport to address all of thesafety concerns,if any,associated with its use.It is theresponsibility of the user of this standard to become familiarwith all hazards including those identified in the appropriateSafety Data Sheet(SDS)for this product/material as providedby the manufacturer,to establish appropriate safety,health andenvironmental practices,and determine the applicability ofregulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:3B751 Specification for General Requirements for Nickel andNickel Alloy Welded TubeE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)3.General Requirements3.1 Material furnished in accordance with this specificationshall conform to the applicable requirements of the currentedition of Specification B751 unless otherwise providedherein.4.Classification4.1 Five classes of tube are covered as follows:4.1.1 Class IAWelded,sized,solution annealed,and non-destructively tested in accordance with 4.2.1.4.1.2 Class IBWelded,sized,and solution annealed.4.1.3 Class IIAWelded,cold worked,solution annealed,and nondestructively tested in accordance with 4.2.1.4.1.4 Class IIBWelded,cold worked,and solution an-nealed.4.1.5 Class IIIWelded,cold worked,solution annealed,and nondestructively tested in accordance with 4.2.2.4.2 Nondestructive Tests:4.2.1 Class IA and Class IIA TubesEach finished tubeshall be subjected to the hydrostatic test,the pneumatic test,orthe eddy current test at the manufacturers option.4.2.2 Class III TubesEach finished tube shall be subjectedto the pneumatic test and the eddy current test.Tubes largerthan 112in.(38.1 mm)in outside diameter may be subjected tothe hydrostatic test in lieu of the pneumatic test at themanufacturers option.5.Ordering Information5.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for material ordered under this1This specification is under the jurisdiction of ASTM Committee B02 onNonferrous Metals and Alloys and is the direct responsibility of SubcommitteeB02.07 on Refined Nickel and Cobalt and Their Alloys.Current edition approved July 1,2017.Published August 2017.Originallyapproved in 1977.Last previous edition approved in 2017 as B626 17.DOI:10.1520/B0626-17a.2New designations established in accordance with Practic E527 and SAE J1086,Practice for Numbering Metals and Alloys(UNS).3For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.*A Summary of Changes section appears at the end of this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 TABLE 1 Chemical RequirementsComposition Limits,%NiCrMoFeWCSimaxCoMnVPmaxSmaxTiCuCb(Nb)+TaAlZrLaNBCb(Nb)TaNi+MoMgNi-Mo AlloysN10001remainder1.0max26.0-30.04.0-6.0.0.05max1.02.5max1.0max