ASTM A230/A230M-05

Standard Specification for Steel Wire, Oil-Tempered Carbon Valve Spring Quality

ABSTRACT
This specification deals with the highest quality of round carbon steel spring wire, uniform in quality and temper, intended especially for the manufacture of valve springs and other springs requiring high-fatigue properties. The steel wire shall be subjected to continuous casting, hardening, and tempering to produce the desired mechanical properties. The steel shall conform to the chemical requirements for carbon, manganese, phosphorus, sulfur, and silicon. Mechanical properties shall be determined by the tension test, wrap test, twist test, and special surface inspection. The material as represented by tension test specimens shall conform to the tensile requirements for tensile strength and reduction of area. Metallurgical characterization of steel shall include decarburization, surface condition, and microstructure.
SCOPE
1.1 This specification covers the highest quality of round carbon steel spring wire, uniform in quality and temper, intended especially for the manufacture of valve springs and other springs requiring high-fatigue properties.  
1.2 The values stated in either SI (metric) 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 independent of the other.

General Information

• Status: Historical
• Publication Date: 28-Feb-2005
• ICS: 77.140.25 - Spring steels
• Technical Committee: A01 - Steel, Stainless Steel and Related Alloys
• Drafting Committee: A01.03 - Steel Rod and Wire

Relations

• Replaces: ASTM A230/A230M-99 - Standard Specification for Steel Wire, Oil-Tempered Carbon Valve Spring Quality
• Effective Date: 01-Mar-2005
• Replaced By: ASTM A230/A230M-05(2011)e1 - Standard Specification for Steel Wire, Oil-Tempered Carbon Valve Spring Quality
• Effective Date: 01-Jul-2011
• Referred By: ASTM A229/A229M-18 - Standard Specification for Steel Wire, Quenched and Tempered for Mechanical Springs
• Effective Date: 01-Mar-2005
• Referred By: ASTM A1000/A1000M-17(2023) - Standard Specification for Steel Wire, Carbon and Alloy Specialty Spring Quality
• Effective Date: 01-Mar-2005

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: A230/A230M – 05
Standard Specification for
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Steel Wire, Oil-Tempered Carbon Valve Spring Quality
This standard is issued under the fixed designationA230/A230M; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* MIL-STD-163 Steel Mill Products, Preparation for Ship-
ment and Storage
1.1 This specification covers the highest quality of round
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2.4 Federal Standard:
carbon steel spring wire, uniform in quality and temper,
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
intended especially for the manufacture of valve springs and
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2.5 AIAG Standard:
other springs requiring high-fatigue properties.
AIAG B-5 02.00 Primary Metals Identification Tag Appli-
1.2 The values stated in either SI (metric) units or inch-
cation Standard
pound units are to be regarded separately as standard. The
values stated in each system are not exact equivalents; there-
3. Ordering Information
fore, each system must be used independent of the other.
3.1 Material furnished under this specification shall con-
2. Referenced Documents form to the applicable requirements of the current edition of
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either Specification A510 or Specification A510M.
2.1 ASTM Standards:
3.2 Orders for material under this specification should
A370 Test Methods and Definitions for Mechanical Testing
include the following information for each ordered item:
of Steel Products
3.2.1 Quantity (mass or weight),
A510 Specification for General Requirements for Wire
3.2.2 Name of material (oil-tempered carbon steel valve
Rods and Coarse Round Wire, Carbon Steel
spring quality wire),
A510M Specification for General Requirements for Wire
3.2.3 Dimensions (Section 8),
Rods and Coarse Round Wire, Carbon Steel (Metric)
3.2.4 Chemical composition (Table 1), if required,
A700 PracticesforPackaging,Marking,andLoadingMeth-
3.2.5 Packaging (Section 14),
ods for Steel Products for Shipment
3.2.6 Cast or heat analysis report, if desired (see 5.2),
A751 Test Methods, Practices, andTerminology for Chemi-
3.2.7 Certification or test report, or both, if specified (Sec-
cal Analysis of Steel Products
tion 13), and
E29 Practice for Using Significant Digits in Test Data to
3.2.8 ASTM designation and date of issue.
Determine Conformance with Specifications
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2.2 ANSI Standard:
NOTE 1—Atypicalmetricorderingdescriptionisasfollows:20 000kg
B 32.4M Preferred Metric Sizes for Round, Square, Rect-
oil-tempered carbon steel valve spring quality wire, 6.00 mm diameter in
125-kg coils to ASTM A230M dated _____, or for inch-pound units,
angle, and Hexagon Metal Products
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40 000 lb oil-tempered carbon steel valve spring quality wire, 0.250 in.
2.3 Military Standard:
diameter in 350-lb coils to ASTM A230 dated _____.
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4. Materials and Manufacture
This specification is under the jurisdiction of ASTM CommitteeA01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
4.1 The steel may be made by any commercially accepted
A01.03 on Steel Rod and Wire.
steel-making process. The steel shall be continuously cast.
Current edition approved March 1, 2005. Published March 2005. Originally
4.2 The finished wire shall be free of detrimental pipe and
approved in 1939. Last previous edition approved in 1999 as A230/A230M – 99.
DOI: 10.1520/A0230_A0230M-05.
undue segregation.
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For referenced ASTM standards, visit the ASTM website, www.astm.org, or
4.3 The wire shall be hardened and tempered to produce the
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
desired mechanical properties.
Standards volume information, refer to the standard’s Document Summary page on
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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A230/A230M – 05
TABLE 1 Chemical Requirements
6.1.2 NumberofTests—Onetestspecimenshallbetakenfor
each five coils, or fraction thereof, in a lot. Each cast or heat in
Element Composition, %
a given lot shall be tested.
A
Carbon 0.60–0.75
6.1.3 LocationofTests—Test specimens shall be taken from
A
Ma
...