HEAT-RESISTANT ALLOY Russian patent published in 1995 - IPC

FIELD: metallurgy. SUBSTANCE: alloy has additionally magnesium, zirconium and yttrium at the following ratio of components, wt.-%: carbon 0.35-0.55; nitrogen 0.02-0.05; chrome 22-27; nickel 25-40; niobium 1-2; tungsten 0.5-5; molybdenum 0.2-0.6; titanium 0.05-0.6; silicon 0.8-2; manganese 0.8-1.5; boron 0.0005-0.005; aluminium 0.1-1; copper 0.1-1; magnesium 0.01-0.1; zirconium 0.005-0.15; yttrium 0.008-0.1, and iron - the rest. The following equation must be realized: %C + %N-(%Nb + 2 x %Ti):10 = 0.24-0.28% . Alloy is used in chemical and petroleum processing industry for making of articles working at temperature 900-1100 C. EFFECT: enhanced quality of alloy. 5 tbl