ASTM International - ASTM A689-97(2002)
Standard Specification for Carbon and Alloy Steel Bars for Springs
|Publication Date:||10 January 2002|
|ICS Code (Spring steels):||77.140.25|
1.1 This specification covers hot-wrought steel bars to be used for the manufacture of general-purpose springs such as coil, torsion, and leaf.
1.2 The values stated in inch-pound units are to be regarded as the standard.