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1.1 This specification covers the highest quality of round modified 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 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.
A370 Test Methods and Definitions for Mechanical Testing of Steel Products
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
European StandardEN10270-2 Steel Wire for Mechanical Springs Part 2: Oil-Hardened and Tempered Spring Steel Wire of Unalloyed and Alloyed Steels
Military StandardMIL-STD-163 Steel Mill Products, Preparation for Shipment and Storage
Federal StandardFed. Std. No. 123 Marking for Shipment (Civil Agencies)
ICS Number Code 77.140.25 (Spring steels)
UNSPSC Code 31152200(Non electric iron and steel wire); 31161900(Springs)
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ASTM A878 / A878M-05, Standard Specification for Steel Wire, Modified Chromium Vanadium Valve Spring Quality, ASTM International, West Conshohocken, PA, 2005, www.astm.orgBack to Top