PROCESS FOR THE PRODUCTION OF HIGH STRENGTH STEEL HAVING INCREASED RESISTANCE TO FATIGUE UNDER ALTERNATING STRESSES

摘要

1417337 Steel article UGINE ACIERS 27 March 1973 [28 March 1972] 14714/73 Heading C7A A rolling mill roller bearing member (e.g. ball roller, needle, pedestal or thrust bearing) for use under heavy stresses at up to 500‹ C is made of a quenched and tempered steel consisting of:- C 0.5-1% Mn 0.2-2% N 0.03% up to solubility limit Si 0.2-1.5% Cr 3-20% the Cr optionally being partially replaced by one or more of B, Mo, Nb, Ta, Ti, V, W and Zr, the balance apart from impurities, being Fe.