1、Designation:A 417 93(Reapproved 2004)Standard Specification forSteel Wire,Cold-Drawn,for Zig-Zag,Square-Formed,andSinuous-Type Upholstery Spring Units1This standard is issued under the fixed designation A 417;the number immediately following the designation indicates the year oforiginal adoption or,
2、in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon(e)indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers round,uncoated,cold-drawnspring wire in coils having propert
3、ies and quality intended forthe manufacture of the following upholstery springs:1.1.1 Type AZig-zag(U-formed),1.1.2 Type BSquare-formed,and1.1.3 Type CSinuous for furniture spring units.1.2 These types of upholstery springs are used in themanufacture of automotive seat springs and furniture springs.
4、The wire is not intended for the manufacture of mechanicalsprings.2.Referenced Documents2.1 ASTM Standards:2A 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA 700 Practices for Packaging,Marking,and LoadingMethods for Steel Products for Domestic ShipmentE 29 Practice for Usi
5、ng Significant Digits in Test Data toDetermine Conformance With Specifications2.2AIAG Standard:AIAG B-5 02.00 Primary Metals Identification Tag Appli-cation Standard33.Ordering Information3.1 Orders for material under this specification shouldinclude the following information for each ordered item:3
6、.1.1 Quantity(weight),3.1.2 Name of material(name of specific type required)(Section 1 and Table 1),3.1.3 Diameter(Table 2),3.1.4 Packaging,marking,and loading(Section 10),3.1.5 ASTM designation and date of issue,and3.1.6 Heat(cast)analysis(if desired).NOTE1A typical ordering description is as follo
7、ws:50 000 lb15 000 kg cold-drawn,upholstery,spring wire Type A for zig-zag-typesprings,Class 1,200 to 300 ksi,size 0.148 in.3.0 mm in 2000-lb 700kg coils to ASTM A 417,dated.4.Manufacture4.1 The steel shall be made by any of the followingprocesses:open-hearth,basic-oxygen,or electric-furnace.4.2 A s
8、ufficient discard shall be made to ensure freedomfrom injurious piping and undue segregation.4.3 The wire shall be cold-drawn to produce the desiredmechanical properties.5.Chemical Composition5.1 Upholstery spring wire for these types of springs iscustomarily produced within the chemical ranges show
9、n be-low.Chemical composition and processing may vary depend-ing on the gage of wire and specific use.Carbon,%0.50 to 0.75AManganese,%0.60 to 1.20APhosphorus,max,%0.040Sulfur,max,%0.050AIn any lot in which all the wire is of the same size and type,and submitted forinspection at the same time,the car
10、bon content shall not vary more than 0.20%,and the manganese content shall not vary more than 0.30%.5.2 An analysis of each heat(cast)shall be made by themanufacturer to determine the percentage of elements specifiedabove.The analysis shall be made from a test sample prefer-ably taken during the pou
11、ring of the heat(cast).The chemicalcomposition thus determined shall be reported to the purchaseror his representative upon request.6.Mechanical Properties6.1 Tension Test:6.1.1 RequirementsThe material as represented by tensiontest specimens shall conform to the requirements prescribed inTable 1 fo
12、r the various sizes and specified types.6.1.2 Number of TestsOne test specimen shall be taken foreach ten coils,or fraction thereof,in a lot.Each heat in a givenlot shall be tested.6.1.3 Location of TestsThe test specimen shall be takenfrom either end of the coil.1This specification is under the jur
13、isdiction 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 March 1,2004.Published March 2004.Originallyapproved in 1957.Last previous edition approved in 1998 as A 417 93(1998).2For
14、 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 Automotive Industry Action Group(AIAG),26200 Lahser Rd
15、.,Suite 200,Southfield,MI 48034.1Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959,United States.6.1.4 Test MethodThe tension test shall be made inaccordance with Test Methods and Definitions A 370.6.2 Wrap Test:6.2.1 RequirementsThe wire for zig-zag-type
16、 and forsquare-formed-type springs for automobile seat and backspring units shall wrap on itself as an arbor without breakage.The wire for sinuous-type furniture spring units shall wrap ona mandrel twice the diameter of the wire without breakage.6.2.2 Number of TestsOne test specimen shall be taken foreach ten coils,or fraction thereof in a lot.Each heat in a givenlot shall be tested.6.2.3 Location of TestsThe test specimen shall be takenfrom either end of the coil.6.2.4 Test MethodThe wrap test
