STEEL Russian patent published in 2010 - IPC C22C38/12 

FIELD: metallurgy.

SUBSTANCE: invention relates to field of ferrous metallurgy, particularly to contents of steel, which can be used in automobile industry. Steel contain carbon, silicon, manganese, nickel, vanadium, niobium, nitrogen, praseodymium, selenium, tellurium, iridium, aluminium and iron, at following ratio of components, wt %: carbon 0.06 - 0.08, silicon 0.12 - 0.16, manganese 0.9 - 1.3, nickel 1.6 - 2.0, vanadium 0.14 - 0.18, niobium 0.2 - 0.3, nitrogen 0.001 - 0.002, praseodymium 0.1 - 0.14, selenium 0.001 - 0.002, tellurium 0.001 - 0.002, iridium 0.001 - 0.002, aluminium 0.1 - 0.16, iron is the rest.

EFFECT: increased durability of steel.

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