ASTM International - ASTM A550-78(2000)
Standard Specification for Ferrocolumbium
|Publication Date:||10 March 2000|
|ICS Code (Ferroalloys):||77.100|
1.1 This specification covers three grades of ferrocolumbium, designated Low-Alloy Steel Grade, Alloy and Stainless Steel Grade, and High-Purity Grade.
1.2 The values stated in inch-pound units are to be regarded as the standard.