Method of making an abrasion resistant steel

Details Method of making an abrasion resistant steel Method of making an abrasion resistant steel

C - Chemistry, Metallurgy

21

D

75/119, 148/31

C21D 8/00 (2006.01) C21D 1/78 (2006.01) C21D 7/13 (2006.01)

Patent

CA 2033222

ABSTRACT OF THE DISCLOSURE The invention provides a method of making an abrasion resistant steel consisting of the steps of: heating a slab having a chemical composition of about 0.05 to 0.45 wt.% C, 0.1 to 1.0 wt.% Si, 0.1 to 2.0 wt.% Mn, 0.05 to 1.5 wt.% Ti and the balance Fe to 1000 to 1300 °C, hot rolling a slab into a hot rolled product of which finishing temperature is the Ar3 point to 1000 °C and directly quenching the hot rolled product, or air cooling and reheating above the Ac3 point followed by quenching the hot rolled product, or air cooling the hot rolled product, or directly quenching and tempering the hot rolled product at below the Ac1 point, air cooling and reheating the hot rolled product at above the Ac3 point followed by quenching and tempering the hot rolled product at below the Ac1 point.

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