Patent ID: 8685316

Claim:
A nickel-based heat resistant alloy consisting of, by mass percent, carbon: 0.001 to 0.1%, chromium: 16 to 22%, aluminum: 0.5 to 1.5%, molybdenum: 0.1 to 2.0%, tungsten: 0.1 to 6.0%, niobium: 3.5 to 5.5%, titanium: 0.8 to 3.0%, iron: 16 to 20%, and the balance being nickel and inevitable impurities, wherein a parameter Ps indicating a segregation tendency is in a range of Psâ‰§âˆ’3.5, wherein the parameter Ps is represented by following formula: Ps=1.05Ã—Al content+0.6Ã—Ti contentâˆ’0.8Ã—Nb contentâˆ’0.3Ã—Mo content.