MUMBAI, India, June 24 -- Intellectual Property India has published a patent application (202617061861 A) filed by Nippon Steel Corporation on May 15, 2026, for Ni-Based Alloy Tube.
Inventors include Kochi, Norifumi; Hamaguchi, Tomoaki; and Kurihara, Shinnosuke.
The application for the patent was published on June 12, 2026, under issue no. 24/2026.
Abstract: The present invention provides an Ni-based alloy tube which is capable of achieving sufficient nitriding resistance in a high-temperature ammonia environment. An Ni- based alloy tube according to the present disclosure has a chemical composition set forth in the description, and a developed area ratio Sdr on the inner surface of the Ni-based alloy tube satisfies formula (1). (1): Cr/...