WEAR-RESISTANT FERROMAGNETIC STEEL Russian patent published in 1998 - IPC

FIELD: metallurgy. SUBSTANCE: steel has components at the following ratio, wt. -%: carbon 0.2-0.29; manganese 1.2-1.8; silicon 0.2-0.6; chrome 0.8-1.3; molybdenum 0.15-0.25; titanium 0.005-0.03, and iron - the rest. Steel has additionally, wt.-%: nickel 0.55-1.1 and aluminium 0.06-0.15 at condition that total content of aluminium and silicon is 0.5 wt.-%, not above, and total amount of chrome, nickel and molybdenum is 2.05 wt.-%, not less. Steel properties: $$$ 0.2 is 700 MPa, not less; $$$ is 850 MPa, not less; $$$ is 5%, not less; is 20%, not less. EFFECT: enhanced quality of steel. 3 cl, 4 tbl