Austenitic castable high temperature alloy

Details Austenitic castable high temperature alloy Austenitic castable high temperature alloy

C - Chemistry, Metallurgy

22

C

75/98

C22C 30/00 (2006.01) C22C 38/40 (2006.01) C22C 38/44 (2006.01) C22C 38/54 (2006.01) C22C 38/58 (2006.01)

Patent

CA 1044924

Abstract of the Disclosure An austenitic castable high temperature alloy having improved high temperature strength coupled with good corrosion resistance and ductility in the as-cast condition and comprising, all percentages being in weight percent, about 16% to about 22% chromium; about 6% to about 18% nickel; about 6% to about 10% molybdenum, up to about 3% tungsten; about 0.5% to about 2.5% boron; about 0.01% to about 0.4% carbon; about 0.15% to about 7% manganese; up to about 3% silicon; from zero to about 1% niobium; and the balance substantially all iron together with normal residuals and incidental impurities present in usual amounts. The alloy is useful for the fabrication of cast components such as blades, vanes and integral wheels for gas turbine engines, and exhaust valves for internal combustion engines.

222096

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