ASTM A232 / A232M - 05(2011)e1

    Standard Specification for Chromium-Vanadium Alloy Steel Valve Spring Quality Wire

    Active Standard ASTM A232 / A232M | Developed by Subcommittee: A01.03

    Book of Standards Volume: 01.03


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    Abstract

    This specification covers the highest quality of round chromium-vanadium alloy steel wires for manufacture of valve springs and other springs with high-fatigue properties under moderately elevated temperatures. The wires shall be annealed, cold-drawn, or oil-tempered. The material shall conform to specified carbon, manganese, phosphorus, sulfur, silicon, chromium, and vanadium contents. Guidelines for mechanical testing are given. Values for tensile requirements are provided. Material decarburization shall be examined. Attention is also given to workmanship, finish, and appearance of the product, and as well as its inspection, rejection, rehearing, and certification. Packaging, marking, and loading for shipment is also described.

    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.

    Significance and Use

    1. Scope

    1.1 This specification covers the highest quality of round chromium-vanadium alloy steel valve spring wire, uniform in quality and temper, intended for the manufacture of valve springs and other springs requiring high-fatigue properties when used at moderately elevated temperatures. This wire shall be either in the annealed and cold-drawn or oil-tempered condition as specified by the purchaser.

    1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text, the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independent of the other.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    A370 Test Methods and Definitions for Mechanical Testing of Steel Products

    A700 Practices for Packaging, Marking, and Loading Methods for Steel Products for 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

    ANSI Standard

    B32.4 Preferred Metric Sizes for Round, Square, Rectangle, and Hexagon Metal Products

    Military Standard

    MIL-STD-163 Steel Mill Products, Preparation for Shipment and Storage

    AIAG Standard

    AIAGB-5 02.00 Primary Metals Identification Tag Application Standard


    ICS Code

    ICS Number Code 77.140.25 (Spring steels)

    UNSPSC Code

    UNSPSC Code 31152200(Non electric iron and steel wire)


    DOI: 10.1520/A0232_A0232M-05R11E01

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