1、Designation:A581/A581M95b(Reapproved 2014)Standard Specification forFree-Machining Stainless Steel Wire and Wire Rods1This standard is issued under the fixed designation A581/A581M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the
2、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 U.S.Department of Defense.1.Scope1.1 This specification covers col
3、d-finished wire and hot-finished wire rods in coils.Wire rods are a semi-finishedproduct primarily for the manufacture of wire.Wire includesrounds,squares,hexagons,and special shapes in the morecommonly used types of stainless free-machining steels de-signed especially for optimum machinability and
4、for generalcorrosion and high-temperature service.NOTE1For wire other than those of the free-machining types,seeSpecification A580/A580M.1.2 The values stated in either inch-pound units or SI(metric)units are to be regarded separately as standards;withinthe text and tables,the SI units are shown in
5、brackets.Thevalues stated in each system are not exact equivalents;therefore,each system must be used independently of the other.Combining values from the two systems may result in noncon-formance with the specification.1.3 Unless the order specifies the applicable“M”specifica-tion designation,the m
6、aterial shall be furnished to the inch-pound units.2.Referenced Documents2.1 ASTM Standards:2A555/A555M Specification for General Requirements forStainless Steel Wire and Wire RodsA580/A580M Specification for Stainless Steel WireA751 Test Methods,Practices,and Terminology for Chemi-cal Analysis of S
7、teel ProductsE527 Practice for Numbering Metals and Alloys in theUnified Numbering System(UNS)2.2 SAE Standard:3J 1086 Practice for Numbering Metals and Alloys(UNS)3.Ordering Information3.1 It is the responsibility of the purchaser to specify allrequirements that are necessary for material ordered u
8、nder thisspecification.Such requirements may include,but are notlimited to,the following:3.1.1 Quantity(weight),3.1.2 Name of material(stainless steel),3.1.3 Condition(see Section 5),3.1.4 Finish(see Section 7),3.1.5 Applicable dimensions including size,thickness,width,and length or coil diameter(in
9、side or outside diameter),and coil weights,3.1.6 Cross section(round,square,etc.),3.1.7 Type or UNS designation(Table 1),3.1.8 ASTM designation(Specification A581/A581M)anddate of issue,and3.1.9 Exceptions to the specification or special require-ments.NOTE2Atypical ordering description is as follows
10、:5000 lb 2000 kgstainless steel wire,annealed,14in.6.5 mm round,coils,Type 303,ASTM Specification A581/A581M dated.End use:machined valveparts.4.Chemical Composition4.1 The steel shall conform to the requirements as tochemical composition specified in Table 1.4.2 Methods and practices relating to ch
11、emical analysisrequired by this specification shall be in accordance with TestMethods,Practices,and Terminology A751.5.Condition5.1 Cold-finished wire may be furnished in one of theconditions listed in Table 2.5.2 Wire rods may be furnished in the as-hot-rolled oras-hot-rolled and annealed condition
12、.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of SubcommitteeA01.17 on Flat-Rolled and Wrought Stainless Steel.Current edition approved March 1,2014.Published April 2014.Originallyapproved in 1967.Las
13、t previous edition approved in 2009 as A581/A581M 95b(2009).DOI:10.1520/A0581_A0581M-95BR14.2For 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 Summar
14、y page onthe ASTM website.3Available from Society of Automotive Engineers(SAE),400 CommonwealthDr.,Warrendale,PA 15096-0001,http:/www.sae.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1Copyright by ASTM Intl(all rights reserved);6.Mec
15、hanical Requirements6.1 Wire products shall conform to the mechanical testrequirements specified in Table 3.6.2 Wire rods shall conform to the annealed mechanical testrequirements specified in Table 3.7.Finish7.1 Wire rods are furnished with a hot rolled or a hot rolledand cleaned finish.7.2 Wire in
16、 the cold-finished condition,is generally fur-nished with a cold-drawn finish.8.General Requirements for Delivery8.1 In addition to the requirements of this specification,allrequirements of the current edition of Specification A555/A555M shall apply.Failure to comply with the generalrequirements of Specification A555/A555M constitutes non-conformance with this specification.9.Keywords9.1free-machining;free-machining wire;stainless steelTABLE 1 Chemical RequirementsUNSDesig-nationATypeComposition
