Patent ID: 7803237

Claim:
An article of manufacture comprising a wear and oxidation resistant nickel-base alloy exhibiting resistance to thermal cracking in high-stress elevated temperature environments, the alloy comprising, in weight percentages based on total alloy weight: 53 to 67 nickel; 20 to 26 chromium; 12 to 18 tungsten; up to 3 cobalt; up to 3 molybdenum; up to 6 iron; 0.1 to 0.5 manganese; 0.1 to 0.7 silicon; 0.1 to 0.6 aluminum; and up to 0.05 carbon, where the article of manufacture is one of a piercer point, a piercing mill guide shoe, a rotary expander guide shoe, a reeler guide shoe, and a high-mill plug.