FIELD: metallurgy.
SUBSTANCE: proposed composition contains the following substances, in wt %: carbon - 3.6-3.9, silicon - 0.4-0.8, manganese - 1.5-2.0, chromium - 0.05-0.07, nickel - 0.5-0.8, titanium - 0.003-0.008, phosphorus - 0.1-0.14, copper - 2.2-2.6, tungsten - 2.2-2.6, cobalt - 1.6-2.0, tungsten - 1.6-2.0, iron making the rest.
EFFECT: higher twisting strength at higher temperatures.
1 tbl
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