MUMBAI, India, June 19 -- Intellectual Property India has published a patent application (202617057625 A) filed by Nippon Steel Corporation on May 06, 2026, for Steel Sheet.
Inventors include Suzuki, Masahito; Hikida, Kazuo; and Akizuki, Makoto.
The application for the patent was published on June 05, 2026, under issue no. 23/2026.
Abstract: The present invention provides a steel sheet that, even with a C content of more than 0.90%, is able to achieve both excellent quenching properties and excellent cold workability. A steel sheet according to the present disclosure comprises, by mass%, more than 0.90% to 1.30% C, 0.01-0.50% Si, 0.20-1.30% Mn, not more than 0.100% P, not more than 0.100% S, not more than 0.100% Al, 0.01-1.60% Cr, and not more than 0.0150% N, with the remainder being Fe and impurities, wherein: the total area ratio of ferrite and cementite particles is not less than 95%; the average particle size of ferrite is not more than 15.0 µm; in the cementite particles, Cr concentration [Cr]? is not more than 7.90% and Mo concentration [Mo]? is not more than 1.50%; the average particle diameter of the cementite particles is not more than 1.50 µm; the maximum particle diameter of the cementite particles is not more than 5.00 µm; and the spheroidization ratio of the cementite particles is not less than 75%.
Disclaimer: Curated by HT Syndication.
