ASTM_A_228_-_A_228M_-_18.pdf

Designation:A228/A228M18Standard Specification forSteel Wire,Music Spring Quality1This standard is issued under the fixed designation A228/A228M;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 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.Scope*1.1 This specification covers two types of round,cold-drawn steel music spring quality wire,uniform in mechanicalproperties,intended especially for the manufacture of springssubject to high stresses or requiring good fatigue properties.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 independently of the other.Combiningvalues from the two systems may result in non-conformancewith the standard.1.3 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established 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 ProductsA510/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 ProductsA938 Test Method for Torsion Testing of WireA941 Terminology Relating to Steel,Stainless Steel,RelatedAlloys,and FerroalloysE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with SpecificationsE1077 Test Methods for Estimating the Depth of Decarbur-ization of Steel Specimens2.2 Federal Standard:Fed.Std.No.123,Marking for Shipment(Civil Agencies)33.Terminology3.1 DefinitionsFor definitions of terms used in thisspecification,refer to Terminology A941.4.Ordering Information4.1 Orders for steel wire under this specification shallcontain the following information:4.1.1 Quantity(weight in lbs,or mass in kg),4.1.2 Name(music steel spring wire)and type(Type 1 orType 2)of material,4.1.3 Diameter(Table 1 and Section 9),4.1.4 Finish(see 10.2),4.1.5 Packaging(Section 15),and4.1.6 ASTM designation and year of issue.4.2 The purchaser shall have the option to specify additionalrequirements,including but not limited to:4.2.1 Requirements for certifications,heat,or test reports,(see Section 14),4.2.2 Special packing,marking,and loading requirements(see Section 15),and4.2.3 Other special requirements,if any.NOTE1A typical inch-pound units ordering description is as follows:10 000 lb Music Steel Spring Wire,Type 1,0.055 in.diameter,phosphatecoated in 1000 lb coils to ASTM A288M_A228M dated _,or formetric units,5000 kg Music Steel Spring Wire,Type 1,1.40 mm diameter,phosphate coated in 500 kg coils to ASTM A288 dated _.5.Materials and Manufacture5.1 The steel may be made by any commercially acceptedsteel-making process.The rod to be used in the manufacture of1This 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 Sept.1,2018.Published September 2018.Originallyapproved in 1939.Last previous edition approved in 2016 as A228/A228M 16.DOI:10.1520/A0228_A0228M-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.3Available from Standardization Documents Order Desk,DODSSP,Bldg.4,SectionD,700RobbinsAve.,Philadelphia,PA191115098,http:/www.dodssp.daps.mil.*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 StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 wire furnished to this specification shall be in accordance withSpecification A510/A510M.5.2 The finished wire shall be free from detrimental pipeand undue segregation.5.3 The wire shall be cold drawn to produce the desiredmechanical properties.5.3.1 Type 1 wire shall be directly drawn from eitheras-rolled rods or from air patented rods or wire to the final wirediameter.5.3.2 Type 2 wi