STAINLESS STEEL Russian patent published in 2008 - IPC C22C38/48 

FIELD: metallurgy.

SUBSTANCE: steel contains carbon, silicon, manganese, chrome, nickel, molybdenum, nitrogen, aluminium, calcium, cerium, lanthanum, niobium, vanadium, copper and iron at following ratio of components, wt %: carbon 0.02-0.04, silicon 0.2-0.4, manganese 0.8-1.2, chrome 23.0-28.0, nickel 23.0-28.0, molybdenum 1.8-2.2, nitrogen 0.1-0.2, aluminium 0.15-0.2, calcium 0.008-0.01, cerium 0.05-0.1, lanthanum 0.05-0.1, niobium 0.2-0.4, vanadium 0.2-0.4, copper 0.2-0.25, iron - the rest.

EFFECT: increasing of steel corrosion resistance.

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