1、Designation:A752 04(Reapproved 2010)Standard Specification forGeneral Requirements for Wire Rods and Coarse RoundWire,Alloy Steel1This standard is issued under the fixed designation A752;the number immediately following the designation indicates the year oforiginal adoption or,in the case of revisio
2、n,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.Scope1.1 This specification covers general requirements for alloysteel rods and uncoated coarse round alloy wire in co
3、ils that arenot required to meet hardenability band limits.1.2 In case of conflict,the requirements in the purchaseorder,on the drawing,in the individual specification,and inthis general specification shall prevail in the sequence named.1.3 The values stated in inch-pound units are to be regardedas
4、the standard.2.Referenced Documents2.1 ASTM Standards:2A370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA700 Practices for Packaging,Marking,and Loading Meth-ods for Steel Products for ShipmentA919 Terminology Relating to Heat Treatment of Metals3E29 Practice for Using Signif
5、icant Digits in Test Data toDetermine Conformance with SpecificationsE30 Test Methods for Chemical Analysis of Steel,CastIron,Open-Hearth Iron,and Wrought Iron3E112 Test Methods for Determining Average Grain Size2.2AIAG Standard:AIAGB-5 02.00 Primary Metals Identification Tag Applica-tion Standard43
6、.Terminology3.1 Description of Terms Specific to This Standard:3.1.1 alloy steel steel is considered to be alloy steel whenthe maximum of the range given for the content of alloyingelements exceeds one or more of the following limits:manga-nese 1.65%,silicon 0.60%,copper 0.60%;or in which adefinite
7、range or a definite minimum quantity of any of thefollowing elements is specified or required within the limits ofthe recognized field of constructional alloy steels:aluminum,chromium up to 3.99%,cobalt,columbium,molybdenum,nickel,titanium,tungsten,vanadium,zirconium,or any otheralloying elements ad
8、ded to obtain a desired alloying effect.Note that aluminum,columbium,and vanadium may also beused for grain refinement purposes.3.1.1.1 Boron treatment of alloy steels,which are fine grain,may be specified to improve hardenability.3.1.1.2 Other elements,such as lead,selenium,tellurium,orbismuth,may
9、be specified to improve machinability.3.1.2 coarse round wirefrom 0.035 to 0.999 in.(0.89 to25.4 mm)in diameter,inclusive,wire produced from hot-rolledwire rods or hot-rolled coiled bars by one or more coldreductions primarily for the purpose of obtaining a desired sizewith dimensional accuracy,surf
10、ace finish,and mechanicalproperties.By varying the amount of cold reduction and otherwire mill practices,including thermal treatment,a wide diver-sity of mechanical properties and finishes are made available.3.1.2.1 Coarse round wire is designated by common frac-tions or decimal parts of an inch,or
11、millimetres.3.1.3 wire rodsrods that are hot rolled from billets into anapproximate round cross section and into coils of one continu-ous length.Rods are not comparable to hot-rolled bars inaccuracy of cross section or surface finish and as a semi-finished product are primarily for the manufacture o
12、f wire.3.1.3.1 Rod sizes from732to4764in.(5.6 to 18.7 mm)indiameter,inclusive,are designated by fractions or decimalparts of an inch as shown in Table 1.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Related Alloys and is the direct responsibility of
13、 SubcommitteeA01.03 on Steel Rod and Wire.Current edition approved April 1,2010.Published April 2010.Originallyapproved in 1977.Last previous edition approved in 2004 as A752 04.DOI:10.1520/A0752-04R10.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service
14、 at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.3Withdrawn.The last approved version of this historical standard is referencedon www.astm.org.4Available from Automotive Industry Action Group(AIAG),26200 Lahser Rd
15、.,Suite 200,Southfield,MI 48033,http:/www.aiag.org.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.NOTICE:This standard has either been superseded and replaced by a new version or withdrawn.Contact ASTM International(www.astm.org)for the
16、latest information TABLE 1Sizes of Alloy Steel Wire RodsInchFractionDecimalEquivalent,in.MetricEquivalent,mmInchFractionDecimalEquivalent,in.MetricEquivalent,mm7320.2195.631640.48412.315640.2346.0120.50012.7140.2506.433640.51613.117640.2666.717320.53113.59320.2817.135640.54713.919640.2977.59160.56214.35160.3127.937640.57814.721640.3288.319320.59415.111320.3448.739640.60915.523640.3599.1580.62515.9380.3759.541640.64116.325640.3919.921320.65616.713320.40610.343640.67217.127640.42210.711160.68817.5