Patent ID: 7922836

Claim:
A ferrous abrasion resistant sliding material having a martensite parent phase which forms a solid solution with carbon of 0.2 to 0.5 wt %, wherein said material contains carbon of 1.5 to 3.2 wt %, Cr of 7 to 25 wt %, Mo of 3.5 wt % or more, V of 3 wt % or more, (Mo+0.5×W) of 5 to 15 wt %, in which 0.5×W represents half of a real amount of W, and (V+Ti) of 3 to 8 wt %, with each amount being satisfied by the following equation; 0.043×(Mo(wt %)+0.5×W(wt %))+2×0.085×(Cr(wt %)−5)+0.2×(V(wt %)−0.5+Ti(wt %))≦carbon(wt %)≦0.038×(Mo(wt %)+0.5×W(wt %))+0.42+2×0.085×(Cr(wt %)−5)+0.2×(V(wt %)−0.5+Ti(wt %)), and wherein said martensite parent phase contains special carbides of Cr 7 C 3 carbide, M 6 C carbide and MC carbide precipitated and dispersed therein in a content of 5 to 25% by volume, in a content of 5 to 25% by volume and in a content of 5 to 15% by volume, respectively, with a total content of said carbide being 15 to 50% by volume, where M is Mo, V or W.