1、Designation:A230/A230M05(Reapproved 2011)1Standard Specification forSteel Wire,Oil-Tempered Carbon Valve Spring Quality1This standard is issued under the fixed designation A230/A230M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,th
2、e year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the Department of Defense.1NOTEChanges were made editorially through
3、out in July 2011.1.Scope*1.1 This specification covers the highest quality of roundcarbon steel spring wire,uniform in quality and temper,intended especially for the manufacture of valve springs andother springs requiring high-fatigue properties.1.2 The values stated in either SI units or inch-pound
4、 unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.2.Referenced Documents2.1 ASTM Standards:2A37
5、0 Test Methods and Definitions for Mechanical Testingof Steel ProductsA510 Specification for General Requirements for Wire Rodsand Coarse Round Wire,Carbon SteelA510M Specification for General Requirements for WireRods and Coarse Round Wire,Carbon Steel(Metric)A700 Practices for Packaging,Marking,an
6、d Loading Meth-ods for Steel Products for ShipmentA751 Test Methods,Practices,and Terminology for Chemi-cal Analysis of Steel ProductsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 ANSI Standard:3B 32.4M Preferred Metric Sizes for Round,Square,R
7、ect-angle,and Hexagon Metal Products2.3 Military Standard:4MIL-STD-163 Steel Mill Products,Preparation for Ship-ment and Storage2.4 Federal Standard:4Fed.Std.No.123 Marking for Shipment(Civil Agencies)2.5 AIAG Standard:5AIAG B-5 02.00 Primary Metals Identification Tag Applica-tion Standard3.Ordering
8、 Information3.1 Material furnished under this specification shall con-form to the applicable requirements of the current edition ofeither Specification A510 or Specification A510M.3.2 Orders for material under this specification shouldinclude the following information for each ordered item:3.2.1 Qua
9、ntity(mass or weight),3.2.2 Name of material(oil-tempered carbon steel valvespring quality wire),3.2.3 Dimensions(Section 8),3.2.4 Chemical composition(Table 1),if required,3.2.5 Packaging(Section 14),3.2.6 Cast or heat analysis report,if desired(see 5.2),3.2.7 Certification or test report,or both,i
10、f specified(Sec-tion 13),and3.2.8 ASTM designation and date of issue.NOTE1A typical metric ordering description is as follows:Forinch-pound units,40 000 lb oil-tempered carbon steel valve spring qualitywire,0.250 in.diameter in 350-lb coils toASTM A230 dated _,or forSI units 20 000 kg oil-tempered c
11、arbon steel valve spring quality wire,6.00 mm diameter in 125-kg coils to ASTM A230M dated _.4.Materials and Manufacture4.1 The steel may be made by any commercially acceptedsteel-making process.The steel shall be continuously cast.4.2 The finished wire shall be free of detrimental pipe andundue seg
12、regation.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.03 on Steel Rod and Wire.Current edition approved July 1,2011.Published July 2011.Originally approvedin 1939.Last previous edit
13、ion approved in 2005 as A230/A230M 05.DOI:10.1520/A0230_A0230M-05R11E01.2For 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 we
14、bsite.3Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036.4Available from Standardization Documents Order Desk,DODSSP,Bldg.4,Section D,700 Robbins Ave.,Philadelphia,PA 19111-5098.5Available from Automotive Industry Action Group(AIAG),26200 Lahser Rd.
15、,Suite 200,Southfield,MI 48034.*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 States1Copyright by ASTM Intl(all rights reserved);4.3 The wire shall be hardened and tempered to prod
16、uce thedesired mechanical properties.5.Chemical Composition5.1 The steel shall conform to the requirements for chemicalcomposition prescribed in Table 1.5.2 Cast or Heat AnalysisEach cast or heat of steel shallbe analyzed by the manufacturer to determine the percentage ofelements prescribed in Table 1.This analysis shall be madefrom a test specimen preferably taken during the pouring of thecast or heat.When requested,this shall be reported to thepurchaser and shall conform to the requirements of