STEEL Russian patent published in 2009 - IPC C22C38/50 

FIELD: metallurgy.

SUBSTANCE: invention relates to metallurgy field, particularly to composition of chromium-nickel steels, which can be used in cryogenic technology. Steel contains carbon, silicon, manganese, aluminium, nickel, chrome, titanium, molybdenum, calcium, copper, zirconium, niobium, potassium, strontium, neodymium and iron at following components ratio, wt %: carbon 0.02-0.04, silicon 0.02-0.04, manganese 0.4-0.6, aluminium 0.3-0.4, nickel 25.0-30.0, chrome 6.0-7.0, titanium 0.1-0.2, molybdenum 3.0-4.0, calcium 0.005-0.01, zirconium 0.05-0.1, copper 2.6-3.0, niobium 0.2-0.4, potassium 0.0001-0.0002, strontium 0.001-0.002, neodymium 0.03-0.07, iron is the rest.

EFFECT: increasing of steel cold resisting property.

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