METHOD FOR PRODUCTION OF HIGH-HARDNESS WEAR-RESISTANT SHEET PRODUCTS Russian patent published in 2016 - IPC C21D8/02 C22C38/54 

FIELD: metallurgy.

SUBSTANCE: invention relates to ferrous metallurgy, particularly to production of a new highly efficient type of metal products - thick-sheet wear-resistant low-alloy steel for heavy handling equipment. Method involves production of slabs from steel containing, wt%: 0.20-0.28 C, 0.15-0.30 Si, 0.75-1.30 Mn, 0.30-0.65 Cr, 0.85-1.55 Ni, 0.25-0.40 Mo, 0.02-0.06 V, 0.02-0.05 Al, 0.001-0.010 N, 0.10-0.20 Cu, 0.002-0.060 Nb, 0.002-0.010 Ti, 0.001-0.005 B, not more than 0.005 S, not more than 0.010 P, Fe - balance, heating, multipass hot rolling of sheets, tempering with water at temperature of 930-980 °C, tempering at temperature 150-250 °C.

EFFECT: high hardness and strength while maintaining sufficient ductility and impact strength.

1 cl, 4 tbl, 1 ex