ASTM A 878/A 878M - 05 Standard Specification for Steel Wire, Modified Chromium Vanadium Valve Spring Quality

American Society for Testing and Materials (ASTM). Current edition approved March 1, 2005. Published March 2005. Originally approved in 1987. Last previous edition approved in 1999 as A 878/A 878M – 99. 4 p. 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.