Nickel-chromium-iron-aluminum alloy

Details Nickel-chromium-iron-aluminum alloy Nickel-chromium-iron-aluminum alloy

C - Chemistry, Metallurgy

22

C

75/112

C22C 19/05 (2006.01)

Patent

CA 1255928

ABSTRACT OF THE DISCLOSURE A yttrium-free, nickel-chromium-iron-aluminum alloy characterized by excellent oxidation resistance at very high temperatures. The alloy consists essentially of, by weight, from 14 to 18% chromium, from 4 to 6% aluminum, from 1.5 to 8% iron, up to 12% cobalt, up to 1% manganese, up to 1% molybdenum, up to 1% silicon, up to 0.25% carbon, up to 0.03% boron, up to 1% tungsten, up to 0.5% tantalum, up to 0.2% titanium, up to 0.5% hafnium, up to 0.2% zir- conium, up to 0.2% rhenium, balance essentially nickel. The nickel plus the cobalt content is at least 66%.

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