FIELD: metallurgy.
SUBSTANCE: proposed composition contains the following substances, in wt %: carbon - 3.0-3.4, silicon - 3.0-3.4, manganese - 1.1-1.5, molybdenum - 0.5-0.9, chromium - 0.03-0.05, cerium - 0.01-0.02, boron - 0.03.-0.05, cobalt - 0.7-1.1, hafnium - 0.1-0.15, selenium - 0.0006-0.0008, iron making the rest.
EFFECT: higher heat resistance.
1 tbl
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