MUMBAI, India, May 9 -- Intellectual Property India has published a patent application (202517036689 A) filed by Nippon Steel Corporation, Tokyo, on April 16, for 'seamless steel tube.'
Inventor(s) include Nishimoto, Takumi; Sato, Haruka; Tomio, Akiko; Imamura, Junko; and Nagasawa, Makoto.
The application for the patent was published on May 9, under issue no. 19/2025.
According to the abstract released by the Intellectual Property India: "A seamless steel tube having an inner surface and an outer surface, and having a chemical composition of, by mass, 0.06% or less of C, 0.55% or less of Si, 0.70-1.40% of Mn, 0.020% or less of P, 0.0005-0.020% of S, 0.005% or less of N, 0.0005-0.0035% of O, 0.25-0.45% of Cu, 0.50% or less of Ni, 0.20% or...