ASTM A230 / A230M

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.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. 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.

2. Referenced Documents

A370 Test Methods and Definitions for Mechanical Testing of Steel Products
A510 Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel
A510M Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel [Metric]
A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for Domestic Shipment
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
MIL-STD-163 Steel Mill Products, Preparation for Shipment and Storage
AIAG B-5 02.00 Primary Metals Identification Tag Application Standard
B32.4M Preferred Metric Sizes for Round, Square, Rectangle, and Hexagon Metal Products
Fed. Std. No. 123 Marking for Shipment (Civil Agencies)

Index Terms

carbon; oil-tempered; valve spring; wire; ICS Number Code 77.140.25

Citing ASTM Standards

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