MUMBAI, India, July 13 -- Intellectual Property India has published a patent application (202617072617 A) filed by Posco Co. , Ltd on June 11, 2026, for High-Strength Stainless Steel Having Excellent Formability And Method For Manufacturing Same.
Inventors include Kong, Junghyun Pctkr No; Park, Minam; Kim, Sangseok; and Jung, Hanyong Wo No.
The application for the patent was published on July 10, 2026, under issue no. 28/2026.
Abstract: The present invention relates to a method for manufacturing a high-strength stainless steel having excellent formability. More specifically, the present invention relates to: a stainless steel containing, in wt%, 0.01-0.10% of C, 0.01-0.10% of N, 0.01-1.00% of Si, 0.01-3.00% of Mn, 10.0-20.0% of Cr, and 0.001-1.000% of Al, with the remainder comprising Fe and inevitable impurities, wherein the microstructure is composed of a dual phase of ferrite and martensite, the room temperature yield strength is at least 350 MPa, the room temperature tensile strength is at least 500 MPa, and the R-bar value based on Equation (1) is at least 1.0; and a method for manufacturing the stainless steel. Equation (1): R-bar = (R0 + 2×R45 + R90)/4 (where, R0 represents the R value in a direction parallel to the rolling direction, R45 represents the R value in a direction at a 45-degree angle to the rolling direction, and R90 represents the R value in a direction at a 90-degree angle to the rolling direction)
Disclaimer: Curated by HT Syndication.
