1.1 This specification covers the highest quality of round and shaped 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. 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 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. 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.
ASTM A232/A232M-18 Referenced Document
ASTM A370 Standard Test Methods and Definitions for Mechanical Testing of Steel Products
ASTM A700 Standard Practices for Packaging, Marking, and Loading Methods for Steel Products for Domestic Shipment
ASTM A751 Standard Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
ASTM A941 Standard Terminology Relating to Steel, Stainless Steel, Related Alloys, and Ferroalloys*, 2024-03-01 Update
ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ASTM E45 Standard Test Methods for Determining the Inclusion Content of Steel
ASTM E8/E8M Standard Test Methods for Tension Testing of Metallic Materials*, 2024-01-01 Update
ASTM A232/A232M-18 history
2018ASTM A232/A232M-18 Standard Specification for Chromium-Vanadium Alloy Steel Valve Spring Quality Wire
2005ASTM A232/A232M-05(2011)e1 Standard Specification for Chromium-Vanadium Alloy Steel Valve Spring Quality Wire
2005ASTM A232/A232M-05 Standard Specification for Chromium-Vanadium Alloy Steel Valve Spring Quality Wire
1999ASTM A232/A232M-99 Standard Specification for Chromium-Vanadium Alloy Steel Valve Spring Quality Wire