FIELD: metallurgy.
SUBSTANCE: sheet steel contains, wt %: up to 0.07 of carbon, 0.20-0.35 of manganese, 0.02-0.07 of aluminium with total contents of chromium, nickel and copper up to 0.16; then there is performed annealing of rolls in bell-type furnaces with nitrogen-hydrogen protective atmosphere at temperature 850°C by zone thermocouple or in furnaces with hydrogen atmosphere at temperature by bench thermocouple 690°C and nucleus temperature 660°C; while annealed rolls are conditioned before pinch-rolling for not less 48 hours.
EFFECT: upgraded consumer properties of sheet steel.
1ex
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