ASTM A679/A679M-06

Standard Specification for Steel Wire, High Tensile Strength, Cold Drawn

ABSTRACT
This specification covers round, uncoated, high tensile strength, cold-drawn steel spring wires having properties and quality suitable for the manufacture of mechanical springs and wire forms subject to high static stresses or infrequent dynamic load, or both. The steel shall be made by any commercially accepted steel making process. The steel shall either be ingot cast or continuous strand cast. The finished wire shall be free from detrimental pipe and undue segregation. The wire shall be cold drawn to produce the desired tensile strength. The wire finish shall be suitable for forming or coiling. It is not intended that this material be furnished with a metallic coating. Heat and product analysis shall be conducted wherein the material shall conform to the required chemical composition values of carbon, manganese, phosphorus, sulfur and silicon. The material shall undergo tensile and wrap tests. The steel shall have fine pearlite microstructure and the wire surface shall not exhibit imperfections.
SCOPE
1.1 This specification covers round, uncoated, high tensile strength, cold-drawn steel spring wire, having properties and quality suitable for the manufacture of mechanical springs and wire forms subject to high static stresses or infrequent dynamic load, or both.
1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other.

General Information

• Status: Historical
• Publication Date: 30-Apr-2006
• ICS: 77.140.65 - Steel wire, wire ropes and link chains
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.03 - Steel Rod and Wire

Relations

• Replaces: ASTM A679/A679M-00 - Standard Specification for Steel Wire, High Tensile Strength, Cold Drawn
• Effective Date: 01-May-2006
• Replaced By: ASTM A679/A679M-06(2012) - Standard Specification for Steel Wire, High Tensile Strength, Cold Drawn
• Effective Date: 01-Mar-2012

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: A679/A679M – 06
Standard Specification for
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Steel Wire, High Tensile Strength, Cold Drawn
This standard is issued under the fixed designationA679/A679M; the number immediately following the designation indicates the year
of 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.
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1. Scope* 2.4 AIAG Standard:
AIAGB-5 02.00 Primary Metals Identification TagApplica-
1.1 This specification covers round, uncoated, high tensile
tion Standard
strength, cold-drawn steel spring wire, having properties and
quality suitable for the manufacture of mechanical springs and
3. Terminology
wireformssubjecttohighstaticstressesorinfrequentdynamic
3.1 Definitions—For definitions of terms used in this speci-
load, or both.
fication, refer to Terminology A941.
1.2 The values stated in either SI units or inch-pound units
are to be regarded separately as standard. The values stated in
4. Ordering Information
each system are not exact equivalents; therefore, each system
4.1 It shall be the responsibility of the purchaser to specify
must be used independently of the other.
all requirements that are necessary for material under this
specification. Such requirements may include, but are not
2. Referenced Documents
2 limited to, the following:
2.1 ASTM Standards:
4.1.1 Quantity (mass),
A370 Test Methods and Definitions for Mechanical Testing
4.1.2 Name of material (steel wire, high tensile strength,
of Steel Products
hard drawn),
A510 Specification for General Requirements for Wire
4.1.3 Dimensions (Table 1 and Section 9),
Rods and Coarse Round Wire, Carbon Steel
4.1.4 Packaging (Section 15),
A510M Specification for General Requirements for Wire
4.1.5 Heat analysis report, if requested (6.2),
Rods and Coarse Round Wire, Carbon Steel (Metric)
4.1.6 Certification or test report, or both, if specified (Sec-
A700 PracticesforPackaging,Marking,andLoadingMeth-
tion 14), and
ods for Steel Products for Shipment
4.1.7 ASTM designation and year of issue.
A751 Test Methods, Practices, andTerminology for Chemi-
cal Analysis of Steel Products
NOTE 1—A typical ordering description is as follows: 20 Mg high
A941 Terminology Relating to Steel, Stainless Steel, Re- tensile strength, hard-drawn steel mechanical spring wire, 5.00-mm
diameter, 500-kg coils to ASTM A679/A679M dated ____ , or for
lated Alloys, and Ferroalloys
inch-pound units, 40,000-lb high tensile strength, hard-drawn steel me-
E29 Practice for Using Significant Digits in Test Data to
chanical spring wire, 0.192-in. diameter, in 1000-lb coils to ASTM
Determine Conformance with Specifications
A679/A679M dated ____ .
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2.2 ANSI Standard:
B32.4 Preferred Metric Sizes for Round, Square, Rectangle,
5. Materials and Manufacture
and Hexagon Metal Products
5.1 The steel may be made by any commercially accepted
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2.3 Federal Standard:
steel making process. The steel may be either ingot cast or
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
continuous strand cast. The rod to be used in the manufacture
of wire furnished to this specification shall be in accordance
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with Specifications A510 or A510M.
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
5.2 The finished wire shall be free from detrimental pipe
A01.03 on Steel Rod and Wire.
and undue segregation.
Current edition approved May 1, 2006. Published May 2006. Originally
5.3 The wire shall be cold drawn to produce the desired
approved in 1973. Last previous edition approved in 2000 as A679/A679M – 00.
DOI: 10.1520/A0679_A0679M-06. mechanical properties.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.4 The wire finish shall be suitable for forming or coiling.
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
It is not intended that this material be furnished with a metallic
Standards volume information, refer to the standard’s Document Summary page on
coating.
the ASTM website.
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Available fromAmerican National Standards Institute (ANSI), 25 W. 43rd St.,
4th Floor, New York, NY 10036.
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Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Available fromAutomotive IndustryAction Group (AIAG), 26200 Lahser Rd.,
Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098. Suite 200, Southfield, MI 48034.
*A Summary of Changes section appears at the end of this standard.
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A679/A679M – 06
TABLE 1 Tensile Requirements
7.1.3 Test Method— The tension test shall be mad
...