Martensitic stainless steel and antifriction bearing using the same

摘要

A martensitic stainless steel with high hardness and high corrosion resistance consists of, by weight %, 0.35 to 0.45 % of C, not more than 0.2 % of Si, not more than 0.3 % of Mn, not more than 0.02 % of P, not more than 0.02 % of S, 15 to 17 % of Cr, 1.5 to 2.5 % of Mo, 0.001 to 0.003 % of B, 0.15 to 0.25 % of N, and the balance of Fe and inevitable impurities.