1.1 This specification covers the requirements for carburizing bearing-quality steel to be used in the manufacture of anti-friction bearings. 1.2 Supplementary requirements of an optional nature are provided and when desi This specification covers standards for carburizing steels to be used in anti-friction bearings. Materials shall conform to carbon, manganese, phosphorus, sulfur, chromium, nickel, molybdenum, copper, oxygen, and aluminum contents. Materials shall adhe