STEEL Russian patent published in 2007 - IPC C22C38/54 

FIELD: metallurgy, energetic machine building.

SUBSTANCE: the suggested steel contains, weight%: carbon 0.8-1.2; silicon 0.2-0.4; chromium 2.5-3.5; tungsten 2.5-3.5; molybdenum 3.0-4.0; vanadium 1.0-1.5; cobalt 4.0-5.0; niobium 0.5-1.0; titanium 0.3-0.5; zirconium 0.5-1.0; gadolinium 0.1-0.2; yttrium 0.03-0.08; boron 0.03-0.08; gallium 0.003-0.008; nickel 1.0-2.0; hafnium 0.8-1.2; magnesium 0.003-0.008; iron - the rest. The innovation provides increased resistance to steel thermal fatigue.

EFFECT: increased resistance to steel thermal fatigue.

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