ASTM International - ASTM A229/A229M-99
Standard Specification for Steel Wire, Oil-Tempered for Mechanical Springs
|Publication Date:||10 March 1999|
|ICS Code (Spring steels):||77.140.25|
1.1 This specification covers two classes of oil-tempered steel spring wire intended especially for the manufacture of mechanical springs and wire forms.
1.2 The values stated in either SI (metric) units or inch-pound units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system must be used independent of the other.