ASTM A230/A230M-19
(Specification)Standard Specification for Steel Wire, Carbon Valve Spring Quality
Standard Specification for Steel Wire, 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 and shaped carbon steel spring wire, uniform in quality and temper, intended especially for the manufacture of valve springs and other springs requiring high-fatigue properties. It is similar to the grade VD (referenced in EN 10270-2) intended for high fatigue levels. This wire shall be either in the annealed and cold-drawn or quenched and tempered condition as specified by purchaser.
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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
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Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:A230/A230M −19
Standard Specification for
1
Steel Wire, 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.Anumber 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 U.S. Department of Defense.
1. Scope* A941TerminologyRelatingtoSteel,StainlessSteel,Related
Alloys, and Ferroalloys
1.1 This specification covers the highest quality of round
E8/E8MTest Methods for Tension Testing of Metallic Ma-
and shaped carbon steel spring wire, uniform in quality and
terials
temper, intended especially for the manufacture of valve
E29Practice for Using Significant Digits in Test Data to
springsandotherspringsrequiringhigh-fatigueproperties.Itis
Determine Conformance with Specifications
similar to the grade VD (referenced in EN 10270-2) intended
E45Test Methods for Determining the Inclusion Content of
forhighfatiguelevels.Thiswireshallbeeitherintheannealed
Steel
and cold-drawn or quenched and tempered condition as speci-
3
fied by purchaser. 2.2 Federal Standard:
Fed. Std. No. 123Marking for Shipment (Civil Agencies)
1.2 The values stated in either SI units or inch-pound units
4
are to be regarded separately as standard. The values stated in 2.3 European Standard:
each system may not be exact equivalents; therefore, each EN 10270-2Steel Wire for Mechanical Springs Part 2:
system shall be used independently of the other. Combining Oil-Hardened and Tempered Spring Steel Wire of Unal-
values from the two systems may result in non-conformance loyed and Alloyed Steels
with the standard.
3. Terminology
1.3 This international standard was developed in accor-
dance with internationally recognized principles on standard-
3.1 Definitions:
ization established in the Decision on Principles for the
3.1.1 Refer to Terminology A941 for additional definitions
Development of International Standards, Guides and Recom-
of terms used in this standard.
mendations issued by the World Trade Organization Technical
3.2 Definitions of Terms Specific to This Standard:
Barriers to Trade (TBT) Committee.
3.2.1 billet, n—an as-cast or forged section, typically avail-
able for transport, inspection, and conditioning, that is used as
2. Referenced Documents
raw material for wire rod manufacture.
2
2.1 ASTM Standards:
3.2.2 bloom, n—an as-cast or forged section used as raw
A370Test Methods and Definitions for Mechanical Testing
material for billet manufacture.
of Steel Products
A510/A510MSpecification for General Requirements for
3.2.3 equivalent round diameter, n—diameter of a round
Wire Rods and Coarse Round Wire, Carbon Steel, and
wire having equivalent cross sectional area to a given shaped
Alloy Steel
wire.
A700Guide for Packaging, Marking, and Loading Methods
3.2.4 round wire, n—wire having a circular cross section.
for Steel Products for Shipment
A751Test Methods and Practices for Chemical Analysis of 3.2.5 shape factor, n—a value used to obtain cross sectional
Steel Products area for shaped wires when multiplied by measured width and
measured thickness
1
This specification is under the jurisdiction ofASTM Committee A01 on Steel,
3.2.6 shaped wire, n—wire having a non-circular cross
Stainless Steel and RelatedAlloys and is the direct responsibility of Subcommittee
section.
A01.03 on Steel Rod and Wire.
Current edition approved Sept. 1, 2019. Published September 2019. Originally
approved in 1939. Last previous edition approved in 2011 as A230/
ε1
A230M–05(2011) . DOI: 10.1520/A0230_A0230M-19.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or Available from Standardization Documents Order Desk, DODSSP, Bldg. 4,
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098.
4
Standards volume information, refer to the standard’s Document Summary page on Available from European Committee for Standardization, CEN-CENELEC
the ASTM website. Management Centre Avenue Marnix 17-B-1000 Brussels, Belgium.
*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
1
---------------------- Page: 1 ----------------------
A230/A230M−19
4. Ordering Information 6.2 Heat Analysis—Each heat of steel shall be analyzed to
determine the percentage of elements prescribed in Table 1.
4.1 Orders for material
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: A230/A230M − 05 (Reapproved 2011) A230/A230M − 19
Standard Specification for
1
Steel Wire, Oil-Tempered Carbon Valve Spring Quality
This standard is issued under the fixed designation A230/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 U.S. Department of Defense.
1
ε NOTE—Changes were made editorially throughout in July 2011.
1. Scope*
1.1 This specification covers the highest quality of round and shaped carbon steel spring wire, uniform in quality and temper,
intended especially for the manufacture of valve springs and other springs requiring high-fatigue properties. It is similar to the
grade VD (referenced in EN 10270-2) intended for high fatigue levels. This wire shall be either in the annealed and cold-drawn
or quenched and tempered condition as specified by purchaser.
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 may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.3 This international standard was developed in accordance with internationally recognized principles on standardization
established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued
by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents
2
2.1 ASTM Standards:
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A510A510/A510M Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel (Metric)
A0510_A0510M Steel, and Alloy Steel
A510M Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel (Metric) (Withdrawn
3
2011)
A700 Guide for Packaging, Marking, and Loading Methods for Steel Products for Shipment
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
A941 Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys
E8/E8M Test Methods for Tension Testing of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E45 Test Methods for Determining the Inclusion Content of Steel
4
2.2 ANSI Standard:
B 32.4M Preferred Metric Sizes for Round, Square, Rectangle, and Hexagon Metal Products
5
2.3 Military Standard:
MIL-STD-163 Steel Mill Products, Preparation for Shipment and Storage
3
2.2 Federal Standard:
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)
4
2.3 AIAG European Standard:
AIAG B-5EN 10270-2 02.00 Primary Metals Identification Tag Application StandardSteel Wire for Mechanical Springs Part 2:
Oil-Hardened and Tempered Spring Steel Wire of Unalloyed and Alloyed Steels
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel, Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee A01.03
on Steel Rod and Wire.
Current edition approved July 1, 2011Sept. 1, 2019. Published July 2011September 2019. Originally approved in 1939. Last previous edition approved in 20052011 as
ε1
A230/A230M – 05.A230/A230M – 05 (2011) . DOI: 10.1520/A0230_A0230M-05R11E01.10.1520/A0230_A0230M-19.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098.
4
Available from Automotive Industry Action Group (AIAG), 26200 Lahser Rd., Suite 200, Southfield, MI 48034.European Committee for Standardization,
CEN-CENELEC Management Centre Avenue Marnix 17-B-1000 Brussels, Belgium.
*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
1
---------------------- Page: 1 ----------------------
A230/A230M − 19
3. Terminology
3.1 Definitions:
3.1.1 Refer to Terminology A941 for additional definitions of terms used
...
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