Patent ID: 7297177

Claim:
Cold work steel in the hardened and tempered condition, manufactured powder metallurgically, having a wear rate of 8.3 mg/min, and having the following chemical composition in weight-%: 1.37% C 0.38% Si 0.37% Mn 4.81% Cr 3.50% Mo 0.1% W 357% V max 0.3% S 0.064% N balance iron and unavoidable impurities; and a microstructure which in the hardened and tempered condition of the steel contains 6-13 vol-% of vanadium-rich MX-carbides,-nitrides and/or carbonitrides which are evenly distributed in the matrix of the steel, where X is carbon and/or nitrogen, at least 90 vol-% of said carbides, nitrides and/or carbonitrides having an equivalent diameter, D eq , which is smaller than 3.0 μm; and a total max. 1 vol-% of other existing carbides, nitrides or carbonitrides.