1、Designation:B64917Standard Specification forNi-Fe-Cr-Mo-Cu-N Low-Carbon Alloys(UNS N08925,UNS N08031,UNS N08034,UNS N08354,and UNS N08926),and Cr-Ni-Fe-N Low-Carbon Alloy(UNS R20033)Bar andWire,and Ni-Cr-Fe-Mo-N Alloy(UNS N08936)Wire1This standard is issued under the fixed designation B649;the numbe
2、r 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
3、specificationcoversnickel-iron-chromium-molybdenum-copper-nitrogen alloys(UNS N08925,UNSN08031,UNS N08034,UNS N08354,and UNS N08926),andchromium-nickel-iron-nitrogenlow-carbonalloy(UNSR20033)barandwire,andnickel-chromium-iron-molybdenum-nitrogen alloy(UNS N08936)wire.1.2 ASTM International has adopt
4、ed definitions wherebysome grades,such as UNS N08904,2previously in thisspecification were recognized as stainless steels,because thosegrades have iron as the largest element by mass percent.Suchgrades are under the oversight of ASTM Committee A01 andits subcommittees.The products of N08904 previous
5、ly coveredin this specification are now covered by Specifications A479/A479M and A484/A484M.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 sta
6、ndard.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 provide
7、dby 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
8、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:3A479/A479M Specification for Stainless Steel Bars andShapes for Use in Boilers an
9、d Other Pressure VesselsA484/A484M Specification for General Requirements forStainless Steel Bars,Billets,and ForgingsB880 Specification for General Requirements for ChemicalCheck Analysis Limits for Nickel,Nickel Alloys andCobalt AlloysE8 Test Methods for Tension Testing of Metallic MaterialsE29 Pr
10、actice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE55 Practice for Sampling Wrought Nonferrous Metals andAlloys for Determination of Chemical CompositionE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)E1473 Test Methods for C
11、hemical Analysis of Nickel,Co-balt and High-Temperature Alloys3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 bars,nhot-finished rounds,squares,octagons,andhexagons:14in.(6.35 mm)and over in diameter or size.Hot-finished flats:14in.to 10 in.(254 mm)inclusive in width,18in.(3.18
12、 mm)and over in thickness.Cold-finished rounds,squares,octagons,hexagons,and shapes:over12in.(12.70mm)in diameter or size.Cold-finished flats:38in.(9.52 mm)and over in width(see 3.1.1.1)and18in.and over in thickness(see 3.1.1.2).3.1.1.1 DiscussionWidths less than38in.(9.52 mm)andthicknesses less tha
13、n316in.(4.76 mm)are described generallyas flat wire.1This 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 A
14、ugust 2017.Originallyapproved in 1981.Last previous edition approved in 2016 as B649 06(2016).DOI:10.1520/B0649-17.2New designation established in accordance with Practice E527 and SAE J1086,Practice for Numbering Metals and Alloys(UNS).3For referenced ASTM standards,visit the ASTM website,www.astm.
15、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,W
16、est 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 3.1.1.2 DiscussionThickness18in.to under316in.(3.18mm to under 4.76 mm)can be cold-rolled strip as well as bar.3.1.2 wire,ncold-finished onl