FIELD: metallurgy.
SUBSTANCE: proposed composition contains the following substances, in wt %: C - 0.05-0.06, Si - 0.01-1.50, Mn - 3.0-7.0, P - 0.001-0.050, S - 0.020-0.2, Al - 3.0-6.0, Cr - 0.01-1.0, N - 0.0040-0.020, Fe and unavoidable impurities making the rest. Additionally steel may contain one or several following elements, in wt %: V - 0.05-0.30, Nb - 0.05-0.30, and Ti - 0.005-0.050.
EFFECT: higher strength, lower specific weight and better machinability.
2 cl, 2 tbl, 1 ex
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