RAIL STEEL Russian patent published in 2005 - IPC

FIELD: ferrous metallurgy; production of steel of railway rails.

SUBSTANCE: proposed steel contains the following components, mass-%: carbon, 0.30-0.35; silicon,1.15-1.25; manganese, 1.50-2.60; chromium, 0.6-1.3; vanadium, 0.08-0.15; aluminum, 0.005-0.010; nitrogen, 0.012-0.020; calcium, 0.001-0.020; molybdenum, 0.10-0.40; strontium, 0.001-0.020; nickel, 0.001-0.30; the remainder being iron. Proposed steel contains limited amount of admixtures, mass-%: sulfur, no more than 0.020; phosphorus, no more than 0.020; copper, no more than 0.20.

EFFECT: improved mechanical properties and hardness of steel; increased service resistance of rails.

2 cl, 2 tbl