FIELD: metallurgy.
SUBSTANCE: proposed steel contains components in the following ratio in wt %: carbon - up to 0.03, chromium - 8.0-16, molybdenum - 1-5, cobalt - 0-1, aluminium - 1-5, titanium - ≤0.3, lanthanum and yttrium - ≤0.05, iron making the rest.
EFFECT: higher-strength corrosion-proof material that features sufficient ductile two-phase austenite-ferrite structure.