RAIL STEEL Russian patent published in 2011 - IPC C22C38/48 

Abstract RU 2410462 C1

FIELD: metallurgy.

SUBSTANCE: invention relates to ferrous metallurgy, namely, to production rail steel. Steel contains carbon, manganese, silicon, vanadium, chromium, nickel, copper, calcium, aluminium, niobium, nitrogen, iron and admixtures in the following ratio of components, wt %: carbon - 0.75-0.90, manganese - 0.75-1.25, silicon - 0.25-0.65, vanadium - 0.03-0.15, chromium - 0.20-0.60, nickel - 0.30 max.; copper - 0.30 max.; calcium - 0.0004-0.003, niobium - 0.001-0.12, aluminium - 0.005, max.; nitrogen - 0.007-0.020, iron and admixtures making the rest. Admixtures represent sulphur in amount not exceeding 0.020% and phosphor in amount not exceeding 0.025%.

EFFECT: improved physical and chemical properties.

2 tbl

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RU 2 410 462 C1

Authors

Jur'Ev Aleksej Borisovich

Mukhatdinov Nasibulla Khadiatovich

Stepashin Andrej Mikhajlovich

Kozyrev Nikolaj Anatol'Evich

Korneva Larisa Viktorovna

Nikulina Alevtina Leonidovna

Bojkov Dmitrij Vladimirovich

Dates

2011-01-27Published

2009-08-03Filed