Nickel-chromium-iron-aluminum alloy

Abstract From the Canadian patent

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%.