HEAT RESISTANT ALLOY Russian patent published in 2010 - IPC C22C30/00 C22C38/50 

FIELD: metallurgy.

SUBSTANCE: here is disclosed heat resistant alloy. The alloy contains carbon 0.30-0.40, chromium 20-23, nickel 30-33, niobium 1.0-1.7, cerium 0.07-0.11, silicon 0.45-0.95, manganese 0.8-1.45, vanadium 0.0005-0.15, titanium 0.0005-0.15, aluminium 0.0005-0.10, tungsten 0.05-0.5, iron and impurities - the rest. Contents of impurities does not exceed the following values, wt %: sulphur - 0.02, phosphorus - 0.02, lead - 0.01, tin - 0.01, arsenic - 0.01, zinc - 0.01, molybdenum - 0.25, cobalt - 0.1, copper - 0.2.

EFFECT: upgraded mechanical properties of alloy and increased working pressure of operating pipes, fabricated out of disclosed alloy, to 50 at.

2 cl, 1 tbl, 1 ex