MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202617072639 A) filed by Posco Co. , Ltd on June 11, 2026, for High-Strength Stainless Steel And Manufacturing Method Thereof.
Inventors include Noh, Hanseop Pctkr No; and Kim, Sangseok.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: A high-strength stainless steel according to an embodiment of the present invention contains, in wt%, 0.01-0.10% of C, 0.10-1.00% of Si, more than 0% and less than 0.050% of P, more than 0% and less than 0.030% of S, 3.0-8.0% of Mn, 1.0-5.0% of Ni, 15.0-18.0% of Cr, 0.1-2.0% of Cu, and 0.10-0.20% of N, with the remainder comprising Fe and inevitable impurities, wherein the value of a stability index (SI) represented by expression (1) below may be 4.20 or less. Expression (1): 0.02[Si]+0.24[Mn]+0.08[Cr]+0.15[Ni]+0.1[Cu]+2.28([C]+[N]). In expression (1), Si, Mn, Cr, Ni, Cu, C, and N represent the amounts (wt%) of the respective elements.
Disclaimer: Curated by HT Syndication.
