C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 38/14 (2006.01) C21D 6/02 (2006.01) C22C 38/02 (2006.01)
Patent
CA 2063327
ABSTRACT OF THE DISCLOSURE An abrasion-resistant steel consists essentially of 0.05 to 0.45 wt.% C, 0.1 to 1 wt.% Si, 0.1 to 2 wt.% Mn, 0.05 to 1.5 wt.% Ti and the balance being Fe and inevitable impurities, the steel includes at least 200 of precipitates of 1.0µ m or more in particle size per 1 mm2 and the precipitates contains Ti. In addition to the above basic elements, at least one element selected from the group consisting of 0.1 to 2 wt.% Cu, 0.1 to 10 wt.% Ni, 0.1 to 3 wt.% Cr, 0.1 to 3 wt.% Mo and 0.0003 to 0.01 wt.% B is added to steel or at least one element selected from the group consisting of 0.005 to 1 wt.% Nb and 0.01 to 1 wt.% V is added to steel.
Kunisada Yasunobu
Kurihara Masayoshi
Shikanai Nobuo
Shironouchi Yukio
Tani Saburo
Nkk Corporation
Ridout & Maybee Llp
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