NICKEL-CHROMIUM-IRON-ALUMINIUM ALLOY WITH GOOD MACHINABILITY Russian patent published in 2015 - IPC C22C19/05 C22C30/00 

FIELD: metallurgy.

SUBSTANCE: invention relates to nickel-chromium-iron-aluminium alloy with high corrosion resistance and high temperature creeping, and can be used as material used in furnace structures, and chemical industry. Nickel-chromium-iron-aluminium alloy contains in wt %: chromium from 12 to 28%, aluminium from 1.8 to 3.0%, iron from 1.0 to 15%, silicon from 0.01 to 0.5%, manganese from 0.005 to 0.5%, yttrium from 0.01 to 0.20%, titanium from 0.02 to 0.60%, zirconium from 0.01 to 0.2%, magnesium from 0.0002 to 0.05%, calcium from 0.0001 to 0.05%, carbon from 0.03 to 0.11%, nitrogen from 0.003 to 0.05%, boron from 0.0005 to 0.008%, oxygen from 0.0001 to 0.010%, phosphorous from 0.001 to 0.030%, sulphur maximum 0.010%, molybdenum maximum 0.5%, tungsten maximum 0.5%, rest for nickel and common process admixtures.

EFFECT: alloy is characterised by high machinability, HT strength and creeping, and corrosion resistance.

24 cl, 1 dwg, 6 tbl