HEAT-RESISTANT ALLOY Russian patent published in 2012 - IPC C22C38/58 C22C38/50 

FIELD: metallurgy.

SUBSTANCE: alloy contains the following component ratio, wt %: carbon 0.40-0.50, silicone 1.00-2.50, manganese 1.0-2.50, chrome 24.0-27.0, nickel 34.0-36.0, niobium 1.30-1.70, vanadium 0.05-0.25, titanium 0.03-0.10, aluminium 0.03 - 0.10, molybdenum ≤0.50, copper ≤ 0.30, zirconium 0.01-0.25, calcium 0.005-0.025, cerium 0.005-0.03, sulphur ≤ 0.01, phosphorus ≤ 0.01, plumbum ≤ 0.006, stannum ≤ 0.006, arsenic ≤ 0.006, zinc ≤ 0.006; iron is the rest. Total calcium and cerium content is 0.02 - 0.05 wt %.

EFFECT: alloy has high heat resistance, which increases efficiency, operating reliability and service life of oil-refining plants and chemical equipment.

2 cl, 4 tbl