FIELD: metallurgy.
SUBSTANCE: steel consists of the following components, in wt %: up to 0.20 C, 2.0 - 9.0 Mn, up to 2.0 Si, 16.0 - 23.0 Cr, 1.0 - 7.0 Ni, 0.5 - 2.0 Mo, 0.05 - 0.35 N, up to 4.0 W, (7.5(%C))≤(Nb+Ti+V+Ta+Zr)≤1.5, up to 0.01 B, up to 1.0 Co, iron and impurities making the rest. Steel features effective resistance to corrosion PREW exceeding 22 and approximating to 30.
EFFECT: higher resistance to corrosion, deformation and temperature.
46 cl, 1 tbl, 1 ex
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