Patent ID: 6719858
Filing Date: 2004-04-13
Classification: C22B,C22C,C22F

Abstract:
A VAR ingot of a nickel base alloy comprising:about 50.0 to about 55.0 weight percent nickel; about 17 to about 21.0 weight percent chromium; 0 up to about 0.08 weight percent carbon; 0 up to about 0.35 weight percent manganese; 0 up to about 0.35 weight percent silicon; about 2.8 up to about 3.3 weight percent molybdenum; at least one of niobium and tantalum wherein the sum of niobium and tantalum is about 4.75 up to about 5.5 weight percent; about 0.65 up to about 1.15 weight percent titanium; about 0.20 up to about 0.8 weight percent aluminum; 0 up to about 0.006 weight percent boron; and iron and incidental impurities, wherein the ingot has a diameter greater than 30 inches.