CONSTRUCTION STEEL Russian patent published in 2007 - IPC C22C38/16 

FIELD: ferrous metallurgy, energetic machine building.

SUBSTANCE: the present innovation deals with the composition of steels. The steel in question contains the components in the following ratio, weight%: carbon 0.25-0.35; silicon 1.0-2.0; manganese 0.7-1.3; titanium 0.2-0.3; vanadium 1.5-2.5; boron 0.2-0.4; calcium 0.007-0.013; barium 0.006-0.008; magnesium 0.005-0.01; copper 0.4-0.8; iron - the rest. The innovation provides increased fatigue strength and hardenability of the steel.

EFFECT: increased fatigue strength and hardenability.

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