MUMBAI, India, March 15 -- Intellectual Property India has published a patent application (202517016359 A) filed by Nippon Steel Corporation; and Toyo Engineering Corporation, Tokyo, on Feb. 25, for 'duplex stainless steel material.'

Inventor(s) include Yamada, Kenta; Osuki, Takahiro; Kurihara, Shinnosuke; Aota, Shohgo; Nagashima, Eiki; and Ishikawa, Dai.

The application for the patent was published on March 14, under issue no. 11/2025.

According to the abstract released by the Intellectual Property India: "The present invention provides a duplex stainless steel material which has excellent intergranular corrosion resistance. A duplex stainless steel material according to the present disclosure is composed of, in mass%, 0.030% or less of...