Nickel-based alloy for manufacturing pipeline tubes

Abstract

The disclosure relates to an alloy having the following composition, by weight: 16.5 % ≤ Cr ≤ 25. % 11. % ≤ Mo ≤ 18. % 2. % ≤ W ≤ 7. % Fe ≤ 1. % Mo + W ≤ - 0.5 × ( Cr + Fe ) + 30 ⁢ % Mo + W ≥ - 0.5 × ( Cr + Fe ) + 25 ⁢ % Ti + Ta ≤ 0.8 % 0.01 % ≤ Si ≤ 0.75 % 0.01 % ≤ Al ≤ 0.35 % 0.01 % ≤ Mn ≤ 0.35 % Ca ≤ 0.005 % Mg ≤ 0.005 % Nb ≤ 0.01 % 0.001 % ≤ C ≤ 0.05 % 0.001 % ≤ N ≤ 0.05 % S ≤ 0.003 % P ≤ 0.005 % optionally, 0.0010%≤rare earths≤0.015%, the silicon content being less than or equal to 0.25% in the presence of rare earths at a content comprised between 0.0010% and 0.015%, the rest being nickel and unavoidable impurities resulting from the manufacturing, the nickel content being greater than or equal to 54%.

Dependencies are inferred from the claim text.