1、Designation:A401/A401M18Standard Specification forSteel Wire,Chromium-Silicon Alloy1This standard is issued under the fixed designation A401/A401M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in
2、parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope*1.1 This specification covers round and shaped chromium-silicon alloy steel spring wire having properties and qualityintended for the manufacture of sp
3、rings resistant to set whenused at moderately elevated temperatures.This product is notmeant to be used for non-static applications involving moder-ate fatigue stresses(see Specification A1000/A1000M)or highcycle fatigue applications(see Specification A877/A877M).This wire shall be provided either i
4、n the annealed andcold-drawn or quench and tempered condition as specified bythe purchaser.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard.The values stated ineach system may not be exact equivalents;therefore,eachsystem shall be used independent
5、ly of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.2.1 Within the text,the inch-pound units are shown inbrackets.1.3 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established
6、in the 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:2A370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA
7、510/A510M Specification for General Requirements forWire Rods and Coarse Round Wire,Carbon Steel,andAlloy SteelA700 Guide for Packaging,Marking,and Loading Methodsfor Steel Products for ShipmentA751 Test Methods,Practices,and Terminology for Chemi-cal Analysis of Steel ProductsA877/A877M Specificati
8、on for Steel Wire,Chromium-Silicon Alloys,Chrome-Silicon-Vanadium Alloy ValveSpring QualityA941 Terminology Relating to Steel,Stainless Steel,RelatedAlloys,and FerroalloysA1000/A1000M Specification for Steel Wire,Carbon andAlloy Specialty Spring QualityE8/E8M Test Methods for Tension Testing of Meta
9、llic Ma-terialsE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications3.Terminology3.1 Definitions:3.1.1 For definitions of terms used in this specification,seeTerminology A941.3.2 Definitions of Terms Specific to This Standard:3.2.1 equivalent round diamet
10、er,ndiameter of a roundwire having equivalent cross sectional area to a given shapedwire.3.2.2 round wire,nwire having a circular cross section.3.2.3 shape factor,nthis value is used to obtain crosssectional area for shaped wires when multiplied by measuredwidth and thickness.3.2.4 shaped wire,nwire
11、 having a non-circular crosssection.4.Ordering Information4.1 It shall be the responsibility of the purchaser to specifyall requirements that are necessary for material under thisspecification.Such requirements may include,but are notlimited to,the following:4.1.1 Quantity(mass),4.1.2 Name of materi
12、al(chromium-silicon alloy steel wire),4.1.3 Dimensions(Table 1 and Section 9),4.1.4 Condition(Section 7),and4.1.5 ASTM designation and year of issue.4.2 The purchaser shall have the option to specify additionalrequirements,including but not limited to:1This specification is under the jurisdiction of
13、 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 Sept.1,2018.Published September 2018.Originallyapproved in 1956.Last previous edition approved in 2015 as A401/A401M 15.DOI:10.1520/A0
14、401_A0401M-18.2For 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 website.*A Summary of Changes section appears at the end of
15、this standardCopyright ASTM International,100 Barr Harbor Drive,PO Box C700,West 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
16、of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 4.2.1 Requirements for certifications,heat analysis or testreports(6.2 and Section 14),4.2.2 Special packing,marking,and loading requirements(Section 15),and4.2.3 Other special requirements,if any.NOTE1A typical ordering description is as follows:20 000-kg,quench and tempered chromium-silicon alloy steel wire,size 6.00 mm in150 kg coils to ASTM A401/A401M dated