FIELD: metallurgy.
SUBSTANCE: proposed composition contains the following substances, in wt %: carbon - 0.16-0.25, silicon - 0.10-0.60, manganese - 0.60-1.20, chromium - 1.5-2.50, nickel - 0.60-1.50, molybdenum - 0.18-0.75, vanadium - 0.08 - 0.15, aluminium - 0.001-0.008, copper ≤ 0.30, sulfur ≤ 0.006, phosphorus ≤ 0.008, nitrogen - 0.005-0.02, zirconium - 0.001-0.004, calcium - 0.005-0.02, cerium - 0.005-0.03, iron making the rest.
EFFECT: high heat resistance and crack growth resistance.
2 cl, 2 tbl
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Authors
Dates
2013-09-27—Published
2012-06-04—Filed