ASTM A764-2007(2017) Standard Specification for Metallic Coated Carbon Steel Wire Coated at Size and Drawn to Size for Mechanical Springs《机械弹簧用冷拉镀锌和按成品尺寸镀锌的碳素钢丝的标准规格》.pdf
《ASTM A764-2007(2017) Standard Specification for Metallic Coated Carbon Steel Wire Coated at Size and Drawn to Size for Mechanical Springs《机械弹簧用冷拉镀锌和按成品尺寸镀锌的碳素钢丝的标准规格》.pdf》由会员分享,可在线阅读,更多相关《ASTM A764-2007(2017) Standard Specification for Metallic Coated Carbon Steel Wire Coated at Size and Drawn to Size for Mechanical Springs《机械弹簧用冷拉镀锌和按成品尺寸镀锌的碳素钢丝的标准规格》.pdf(5页珍藏版)》请在麦多课文档分享上搜索。
1、Designation: A764 07 (Reapproved 2017)Standard Specification forMetallic Coated Carbon Steel Wire, Coated at Size andDrawn to Size for Mechanical Springs1This standard is issued under the fixed designation A764; the number immediately following the designation indicates the year oforiginal adoption
2、or, in the case of revision, 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.This standard has been approved for use by agencies of the U.S. Department of Defense.1.
3、Scope*1.1 This specification covers two finishes of round, metalliccoated, hard-drawn, carbon steel spring wire having propertiesand quality for the manufacture of mechanical springs and wireforms that are not subject to high stress or require high fatigueproperties.1.2 The values stated in inch-pou
4、nd units are to be regardedas the standard. The values stated in SI units are for informa-tion purposes only.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 Int
5、ernational Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2A90/A90M Test Method for Weight Mass of Coating onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA370 Test Methods a
6、nd Definitions for Mechanical Testingof Steel ProductsA428/A428M Test Method for Weight Mass of Coating onAluminum-Coated Iron or Steel ArticlesA510 Specification for General Requirements for Wire Rodsand Coarse Round Wire, Carbon SteelA700 Guide for Packaging, Marking, and Loading Methodsfor Steel
7、Products for ShipmentA751 Test Methods, Practices, and Terminology for Chemi-cal Analysis of Steel ProductsB6 Specification for ZincB750 Specification for GALFANE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 U.S. Government Standards:3Fed. Std.
8、No. 123 Marking for Shipment (Civil Agencies)MIL-STD-129 Marking for Shipment and Storage2.3 Automotive Industry Action Group Standard:4AIAG B-5 02.00 Primary Metals Identification Tag Applica-tion Standard3. Terminology3.1 Definitions:3.1.1 coating class (regular, 1, or 3)specifies the mini-mum coa
9、ting weight per unit area of uncoated wire surface.Aluminum coated wire is only specified in one class.3.1.2 coating finish (1 or 2)specifies whether a coating isapplied prior to or after the final cold drawing operation.3.1.3 coating type (A, B, or C)specifies the required alloycontent of the coati
10、ng.3.1.4 tensile class (I or II)specifies the tensile range towhich the wire is to conform.4. Ordering Information4.1 Orders for material under this specification shouldinclude the following information:4.1.1 Quantity (weight),4.1.2 Diameter, finish, class of coating if applicable, type ofmetallic c
11、oating, class of tensile strength, name of material,4.1.3 ASTM designation and date of issue,4.1.4 Packaging (Section 15),4.1.5 Cast or heat analysis report, if desired (Section 6), and4.1.6 Test report, if desired (Section 14).NOTE 1A typical ordering description is as follows: 30 000 lb 0.120in. F
12、inish 2, Class 1, Type B Metallic Coating, Tensile Class II, SteelMechanical Spring Wire in 400-lb, 22-in. coils to ASTM A764, dated.1This specification is under the jurisdiction of ASTM Committee A05 onMetallic-Coated Iron and Steel Products and is under the direct responsibility ofSubcommittee A05
13、.12 on Wire Specifications.Current edition approved Sept. 1, 2017. Published September 2017. Originallyapproved in 1979. Last previous edition approved in 2012 as A764 12. DOI:10.1520/A0764-07R17.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at
14、 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, Bldg. 4, Section D,700 Robbins Ave., Philadelphia, PA 19111-5094, ATTN: NPODS.4Available from Automotive Indust
15、ry Action Group, 26200 Lahser Rd., Suite200, Southfield, MI 48034, www.aiag.org.*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
16、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.15. Materials and Manufac
17、ture5.1 The base metal of the wire shall be of good commercialquality steel. The steel may be either ingot cast or strand cast.5.2 A sufficient discard shall be made to ensure freedomfrom injurious piping and undue segregation.5.3 The wire shall be cold drawn to produce the desiredmechanical propert
18、ies.5.4 Each coil shall be of one continuous length. Only weldsmade prior to cold drawing are permitted, unless otherwiseagreed upon at the time of the purchase or contract.5.5 The material shall be metallic coated prior to colddrawing, or at an intermediate stage of cold drawing (Finish 1),or shall
19、 be metallic coated after the final cold drawing (Finish2).5.6 The wire shall be furnished with one of three types ofmetallic coating, as specified:5.6.1 Type AAluminum coated (aluminized),5.6.2 Type BZinc coated (galvanized), or5.6.3 Type CZinc-5 % aluminum-mischmetal (Zn-5Al-MM) alloy coated.5.7 C
20、oating Types A and C shall be produced by a hot-dipprocess. Coating Type B may be produced by either a hot-dipor an electrolytic process at the option of the producer.5.8 The slab zinc for Coating Type B shall be any grade ofzinc conforming to Specification B6.5.9 The ingot used for Coating Type C s
21、hall conform toSpecification B750.6. Chemical Requirements6.1 The steel shall conform to the requirements for chemicalcomposition prescribed in Table 1.6.2 Cast or Heat AnalysisEach cast or heat of steel shallbe analyzed by the manufacturer to determine compliance withthe percentage of elements pres
22、cribed in Table 1. This analysisshall be from a test specimen preferably taken during thepouring of the cast or heat. When required, this shall bereported to the purchaser.6.3 Product AnalysisAn analysis may be made by thepurchaser from finished wire representing each cast or heat ofsteel. The chemi
23、cal composition thus determined, as to ele-ments required or restricted, shall conform to the productanalysis requirements specified in Table 10 of SpecificationA510.6.4 For referee purposes, Test Methods, Practices, andTerminology A751 shall be used.7. Mechanical Requirements7.1 Tension Test:7.1.1
24、RequirementsThe material as represented by tensiontest specimens shall conform to the requirements prescribed inTable 2 or Table 3 for the various sizes and specified class.7.1.2 Test MethodThe tension test shall be made inaccordance with Test Methods A370, Supplement IV.7.2 Wrap Test:7.2.1 Requirem
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