This SAE Recommended Practice covers a high quality, hard drawn, steel spring wire, uniform in mechanical properties, intended for the manufacturer of spring and wire forms subjected to high stresses or requiring good fatigue properties. It covers basic materials and processing requirements of springs and form fabricated therefrom.
SAE J178-1988 history
1998SAE J178-1998 MUSIC STEEL SPRING WIRE AND SPRINGS
1994SAE J178-1994 MUSIC STEEL SPRING WIRE AND SPRINGS
1988SAE J178-1988 MUSIC STEEL SPRING WIRE AND SPRINGS
1970SAE J178-1970 Music Steel Spring Wire and Springs