FIELD: metallurgy.
SUBSTANCE: present invention relates to a method of producing sheet steel with plasticity induced by twinning, having an austenitic matrix and used in making automotive vehicles. Slab containing the following in terms of weight: 0.5<C<1.2 %, 13.0≤Mn<25.0 %, S≤0.030 %, P≤0.080 %, N≤0.1 %, Si≤3.0 %, 0.051 %≤Al≤4.0 %, 0.1≤V≤2.5 %, optionally one or more elements of Nb≤0.5 %, B≤0.005 %, Cr≤1.0 %, Mo≤0.40 %, Ni≤1.0 %, Cu≤5.0 %, Ti≤0.5 % and 0.06≤Sn≤0.2 %, iron and unavoidable impurities are the rest, reheating, hot rolling, rolling, the first cold rolling, recrystallization annealing and the second cold rolling.
EFFECT: obtaining sheet steel with high mechanical properties.
23 cl, 2 dwg, 1 ex
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