1、Designation: A 679/A 679M 06Standard Specification forSteel Wire, High Tensile Strength, Cold Drawn1This standard is issued under the fixed designationA 679/A 679M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the year of last r
2、evision. A number in parentheses indicates the year of last reapproval.A superscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers round, uncoated, high tensilestrength, cold-drawn steel spring wire, having properties andqualit
3、y suitable for the manufacture of mechanical springs andwire forms subject to high static stresses or infrequent dynamicload, or both.1.2 The values stated in either SI units or inch-pound unitsare to be regarded separately as standard. The values stated ineach system are not exact equivalents; ther
4、efore, each systemmust be used independently of the other.2. Referenced Documents2.1 ASTM Standards:2A 370 Test Methods and Definitions for Mechanical Testingof Steel ProductsA 510 Specification for General Requirements for WireRods and Coarse Round Wire, Carbon SteelA 510M Specification for General
5、 Requirements for WireRods and Coarse Round Wire, Carbon Steel MetricA 700 Practices for Packaging, Marking, and LoadingMethods for Steel Products for ShipmentA 751 Test Methods, Practices, and Terminology forChemical Analysis of Steel ProductsA 941 Terminology Relating to Steel, Stainless Steel, Re
6、-lated Alloys, and FerroalloysE29 Practice for Using Significant Digits in Test Data toDetermine Conformance with Specifications2.2 ANSI Standard:3B32.4 Preferred Metric Sizes for Round, Square, Rectangle,and Hexagon Metal Products2.3 Federal Standard:4Fed. Std. No. 123 Marking for Shipment (Civil A
7、gencies)2.4 AIAG Standard:5AIAGB-5 02.00 Primary Metals Identification Tag Applica-tion Standard3. Terminology3.1 DefinitionsFor definitions of terms used in this speci-fication, refer to Terminology A 941.4. Ordering Information4.1 It shall be the responsibility of the purchaser to specifyall requi
8、rements 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 material (steel wire, high tensile strength,hard drawn),4.1.3 Dimensions (Table 1 and Section 9),4.1.4 Packaging (Section 15),4.1.5
9、 Heat analysis report, if requested (6.2),4.1.6 Certification or test report, or both, if specified (Sec-tion 14), and4.1.7 ASTM designation and year of issue.NOTE 1A typical ordering description is as follows: 20 Mg hightensile strength, hard-drawn steel mechanical spring wire, 5.00-mmdiameter, 500
10、-kg coils to ASTM A 679/A 679M dated _ , or forinch-pound units, 40,000-lb high tensile strength, hard-drawn steel me-chanical spring wire, 0.192-in. diameter, in 1000-lb coils to ASTMA 679/A 679M dated _ .5. Materials and Manufacture5.1 The steel may be made by any commercially acceptedsteel making
11、 process. The steel may be either ingot cast orcontinuous strand cast. The rod to be used in the manufactureof wire furnished to this specification shall be in accordancewith Specifications A 510 or A 510M.5.2 The finished wire shall be free from detrimental pipeand undue segregation.5.3 The wire sh
12、all be cold drawn to produce the desiredmechanical properties.5.4 The wire finish shall be suitable for forming or coiling.It is not intended that this material be furnished with a metalliccoating.1This specification is under the jurisdiction of ASTM Committee A01 on Steel,Stainless Steel and Relate
13、d Alloys and is the direct responsibility of SubcommitteeA01.03 on Steel Rod and Wire.Current edition approved May 1, 2006. Published May 2006. Originallyapproved in 1973. Last previous edition approved in 2000 as A 679/A 679M 00.2For referenced ASTM standards, visit the ASTM website, www.astm.org,
14、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 American National Standards Institute (ANSI), 25 W. 43rd St.,4th Floor, New York, NY 10036.4Available from Standard
15、ization Documents Order Desk, DODSSP, Bldg. 4,Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098.5Available from Automotive Industry Action Group (AIAG), 26200 Lahser Rd.,Suite 200, Southfield, MI 48034.1*A Summary of Changes section appears at the end of this standard.Copyright ASTM Internati
16、onal, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.6. Chemical Composition6.1 The steel shall conform to the requirements for chemicalcomposition prescribed in Table 2.6.2 Heat Analysis Each heat of steel shall be analyzed bythe manufacturer to determine the pe
17、rcentage of elementsprescribed in Table 2. This analysis shall be made from a testspecimen preferably taken during the pouring of the heat.When requested, in the purchase order, the heat analysis shallbe reported to the purchaser.6.3 Product Analysis An analysis may be made by thepurchaser from fini
18、shed wire representing each heat of steel.The chemical composition thus determined, as to elementsrequired or restricted, shall conform to the product analysisrequirements specified in Table 7 of Specifications A 510 orA 510M.6.4 For referee purposes, Test Methods, Practices, andTerminology A 751 sh
19、all be used.7. Mechanical Properties7.1 Tension Test:7.1.1 Requirements The material as represented by ten-sion test specimens shall conform to the requirements pre-scribed in Table 1.7.1.2 Number of Tests One test specimen shall be takenfor each 10 coils or fraction thereof, in a lot. Each heat in
20、agiven lot shall be tested.7.1.3 Test Method The tension test shall be made inaccordance with Test Methods and Definitions A 370.7.2 Wrap Test:7.2.1 Requirements The material as represented by thewrap test specimens shall conform to the requirements speci-fied in Table 3.7.2.2 Number of Tests One te
21、st specimen shall be takenfor each 10 coils, or fraction thereof, in a lot. Each heat in agiven lot shall be tested.7.2.3 Location of Test Test specimens shall be taken fromeither end of the coil.7.2.4 Test Method The wrap test shall be made in accor-dance with Test Methods and Definitions A 370.8.
22、Metallurgical Requirements8.1 MicrostructureThe wire shall be cold drawn with afine pearlite structure.8.2 Surface ConditionsThe wire surface shall not exhibitimperfections that exceed 3.5 % of the wire diameter or 0.25mm (0.010 in.) in depth, whichever is smaller.9. Dimensions and Permissible Varia
23、tions9.1 The permissible variations in the diameter of the wireshall be as specified in Table 4.10. Workmanship, Finish, and Appearance10.1 Workmanship The wire shall not be kinked orimproperly cast. To test for cast, one convolution of wire shallbe cut from the coil and placed on a flat surface. Th
24、e wire shallnot spring up excessively nor show a wavy condition.10.1.1 Each coil shall be one continuous length of wire,properly coiled and firmly tied. Welds made prior to colddrawing are permitted.10.2 AppearanceThe surface shall be smooth and free ofrust with no imperfections such as pits or die
25、marks that tendto impair the use of the wire for springs. Any other surfacerequirements shall be negotiated at the time of entry of theorder.11. Retests11.1 If any test specimen exhibits obvious imperfections orshows the presence of a weld, it may be discarded and anotherspecimen substituted.12. Ins
26、pection12.1 Unless otherwise specified in the contract or purchaseorder, the manufacturer is responsible for the performance ofTABLE 1 Tensile RequirementsSI Units Inch-Pound UnitsDiameter,mmA,BTensile Strength, MPaDiameter, in.Tensile Strength, ksimin max min max0.50 2400 2650 0.020 350 3870.55 238
27、0 2620 0.023 343 3800.60 2350 2600 0.026 337 3730.65 2320 2580 0.029 331 3660.70 2300 2550 0.032 327 3610.80 2250 2500 0.035 322 3560.90 2200 2450 0.041 314 3471.00 2150 2400 0.048 306 3391.10 2120 2380 0.054 300 3311.20 2100 2350 0.062 293 3241.40 2050 2300 0.072 287 3171.60 2000 2250 0.080 282 312
28、1.80 1980 2220 0.092 275 3042.00 1950 2200 0.106 268 2962.20 1900 2150 0.120 263 2902.50 1850 2100 0.135 258 2852.80 1820 2050 0.148 253 2793.00 1800 2000 0.162 249 2753.50 1750 1950 0.177 245 2704.00 1700 1900 0.1927 241 2674.50 1680 1880 0.207 238 2645.00 1650 1850ATensile strength values for inte
29、rmediate diameters shall be interpolated.BPreferred sizes. For a complete list, refer to ANSI B32.4TABLE 2 Chemical RequirementsElement Composition, %Carbon 0.651.00AManganese 0.201.30BPhosphorus, max 0.040Sulfur, max 0.050Silicon 0.150.35ACarbon in any one lot shall not vary more than 0.13 %.BManga
30、nese in any one lot shall not vary more than 0.30 %.TABLE 3 Wrap Test RequirementsASI UnitsDiameter, mm Mandrel SizeOver 0.50 to 3.00, inclOver 3.00 to 5.00, incl2343Inch-Pound UnitsDiameter, in. Mandrel Size0.020 to 0.162, inclOver 0.162 to 0.207, incl2343AThe symbol “X” represents the diameter of
31、the wire tested.A 679/A 679M 062all inspection and test requirements specified in this specifica-tion. Except as otherwise specified in the contract or purchaseorder, the manufacturer may use his own or any other suitablefacilities for the performance of the inspection and testrequirements unless di
32、sapproved by the purchaser at the timethe order is placed. The purchaser shall have the right toperform any of the inspections and tests set forth in thisspecification when such inspections and tests are deemednecessary to assure that the material conforms to prescribedrequirements.13. Rejection and
33、 Rehearing13.1 Unless otherwise specified, any rejection based on testsmade in accordance with these specifications shall be reportedto the manufacturer as soon as possible so that an investigationmay be initiated.13.2 The material shall be adequately protected and cor-rectly identified in order tha
34、t the manufacturer is able to makea proper investigation.14. Certification14.1 When specified in the purchase order or contract, aproducers or suppliers certification shall be furnished to thepurchaser that the material was manufactured, sampled, tested,and inspected in accordance with this specific
35、ation and hasbeen found to meet the requirements. When specified in thepurchase order or contract, a report of the test results shall befurnished.14.2 The certification shall include the specification num-ber, year of issue, and revision letter, if any.15. Marking for Shipment15.1 The coil mass, dim
36、ensions, and the method of packag-ing shall be agreed upon between the manufacturer andpurchaser.15.2 A tag shall be securely attached to each coil of wirewith identifying information as agreed upon by the purchaserand manufacturer.15.3 Unless otherwise specified in the purchasers order,packaging, m
37、arking, and loading for shipments shall be inaccordance with those procedures recommended by PracticesA 700.15.4 Marking for shipment of material for civil agenciesshall be in accordance with Fed. Std. No. 123.15.5 Bar CodingIn addition to the previously-stated iden-tification requirements, bar codi
38、ng is acceptable as a supple-mentary identification method. Bar coding should be consistentwith AIAG Standard 02.00. The bar code may be applied to asubstantially affixed tag.16. Keywords16.1 hard drawn; high tensile; wireSUMMARY OF CHANGESCommittee A01 has identified the location of selected change
39、s to this standard since the last issue,A 679/A 679M 00, that may impact the use of this standard. (Approved May 1, 2006.)(1) In 2.4, removed the referenced document referring toMIL-STD-163. This standard is obsolete and all referenceswere removed.(2)In15.4, removed the first sentence referring to M
40、IL-STD-163.(3)In6.3, change the table reference from Table 10 to Table 7.(4) Added summary of changes section.TABLE 4 Permissible Variations in Wire DiameterASI UnitsDiameter, mmPermissibleVariations,6mmPermissibleOut-of-Round,6mmTo 0.70, incl 0.02 0.020.70 to 2.00, incl 0.03 0.03Over 2.00 0.05 0.05
41、Inch-Pound UnitsDiameter, in.PermissibleVariations,6in.PermissibleOut-of-Round,6in.0.020 to 0.028, incl 0.0008 0.0008Over 0.028 to 0.075, incl 0.001 0.001Over 0.075 to 0.207, incl 0.002 0.002AFor purposes of determining conformance with this specification, all specifiedlimits are absolute as defined
42、 in Practice E29.A 679/A 679M 063ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the riskof
43、 infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either for revision of this s
44、tandard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake you
45、r views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).A 679/A 679M 064
