Patent ID: 6060018
Filing Date: 2000-05-09
Classification: C22C

Abstract:
Cold tool steel consisting essentially of: 1.20.about.1.35 weight % C, 0.20.about.0.30 weight % Si, 0.3.about.0.42 weight % Mn, 9.0.about.11.00 weight % Cr, 1.10.about.1.35 weight % Mo, 0.2.about.0.45 weight % V, 0.04.about.0.17 weight % S, and 6.0.about.10.0 ratio Cr/C with the rest being Fe and impurities, and with a Rockwell hardness being within the range from about 55.about.60 HRC after hardening and tempering, resulting in a cold tool steel having improved machinability.