1、Designation:B47210(Reapproved 2015)Standard Specification forNickel Alloy Billets and Bars for Reforging1This standard is issued under the fixed designation B472;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revision,the year of last revisi
2、on.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S.Department of Defense.1.Scope1.1 This specification covers UNS N06002,UNS N06030,U
3、NS N06035,UNS N06022,UNS N06200,UNS N10362,UNS N06230,UNS N06600,UNS N06617,UNS N06625,UNS N08020,UNS N08026,UNS N08024,UNS N08120,UNS N08926,UNS N08367,UNS N10242,UNS N10276,UNS N10665,UNS N10675,UNS N12160,UNS R20033,UNS N06059,UNS N06686,UNS N10629,UNS N08031,UNS N06045,UNS N06025,and UNS R305562
4、billets andbars for reforging.1.2 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.1.3 This standard does not purport to address all of the
5、safety 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 appropriateMaterial Safety Data Sheet(MSDS)for this product/materialas provided by the manufacturer,to establish appropriatesafety
6、and health practices,and determine the applicability ofregulatory limitations prior to use.2.Referenced Documents2.1 ASTM Standards:3A262 Practices for Detecting Susceptibility to IntergranularAttack in Austenitic Stainless SteelsB880 Specification for General Requirements for ChemicalCheck Analysis
7、 Limits for Nickel,Nickel Alloys andCobalt AlloysE1473 Test Methods for Chemical Analysis of Nickel,Cobalt,and High-Temperature Alloys3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 billets and bars,nterms billets and bars as used inthis specification shall be understood as bil
8、lets and bars forreforging.4.Ordering Information4.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for material ordered under thisspecification.Examples of such requirements include,but arenot limited to,the following:4.1.1 Quantity(weight or number of piece
9、s),4.1.2 Name of material or UNS number,4.1.3 Form(bar or billet),4.1.4 Dimensions,4.1.5 ASTM designation and year of issue,4.1.6 Inspection(12.1),4.1.7 CertificationState if certification or a report of testresults is required(Section 14),4.1.8 Supplementary requirements,if any,and4.1.9 If possible
10、,the intended end use.NOTE1A typical ordering description is as follows:10 000 lb(4536kg),UNS N08020,forging bar,414in.(107.95 mm)round,SpecificationB472.5.Materials and Manufacture5.1 The products shall be hot worked from ingots by rolling,forging,extruding,hammering,or pressing.5.2 The products ma
11、y be conditioned by chipping,grinding,or machining to remove injurious surface defects provided thedepth of conditioning does not exceed that which will affect thesurface condition or dimensions of the article to be forged fromthe bar or billet.6.Chemical Composition6.1 The material shall conform to
12、 the requirements as tochemical composition prescribed in Table 1.1This 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 May 1,201
13、5.Published May 2015.Originallyapproved in 1968.Last previous edition approved in 2010 as B472 10.DOI:10.1520/B0472-10R15.2New designation established in accordance with ASTM E527 and SAE J1086,Practice for Numbering Metals and Alloys(UNS).3For referenced ASTM standards,visit the ASTM website,www.as
14、tm.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 C70
15、0,West Conshohocken,PA 19428-2959.United States1 TABLE 1 Chemical RequirementsElementComposition,%UNSN08026UNSN08020UNSN08024UNSN08367UNSN08926UNSR20033Carbon,max0.030.070.030.0300.0200.015Manganese,max1.002.001.002.002.002.0Phosphorus,max0.030.0450.0350.0400.030.02Sulfur,max0.030.0350.0350.0300.010
16、.01Silicon,max0.501.000.501.000.500.50Nickel33.0037.2032.0038.0035.0040.0023.5025.5024.0026.0030.033.0Chromium22.0026.0019.0021.0022.5025.0020.0022.0019.0021.0031.035.0Molybdenum5.006.702.003.003.505.006.007.006.07.00.502.0Copper2.004.003.004.000.501.500.75 max0.51.50.301.20Columbium(Nb)+tantalum.8 carbon1.000.150.35.Nitrogen0.100.16.0.180.250.150.250.350.60IronAremainderremainderremainderremainderbalancebalanceElementComposition,%UNSN06030UNSN06022UNSN06200UNSN10362UNSN10276UNSN10665UNSN10675UN