MUMBAI, India, Aug. 29 -- Intellectual Property India has published a patent application (202517076300 A) filed by Nippon Steel Corporation, Tokyo, on Aug. 11, for 'steel sheet and manufacturing method therefor.'
Inventor(s) include Miyakawa, Taku; Yokoyama, Takafumi; Hironaka, Satoshi; and Yonemura, Shigeru.
The application for the patent was published on Aug. 29, under issue no. 35/2025.
According to the abstract released by the Intellectual Property India: "The present invention provides a steel sheet having improved bendability after plastic working and excellent tensile strength, and also provides a manufacturing method therefor. A steel sheet according to the present invention is characterized by exhibiting a tensile strength of 1180 MPa or more, and having a prescribed chemical composition and steel structure, wherein the surface layer portion of the steel sheet has a deboronized layer where the luminescence intensities B30, B140, and B150 of B, as measured in the depth direction from the steel sheet surface by high-frequency glow discharge optical emission spectrometry, at the depth positions of 30 m, 140 m, and 150 m from the steel sheet surface satisfy B30/B1500.90 and 0.90=B140/B150=1.10."
The patent application was internationally filed on Nov. 07, 2023, under International application No.PCT/JP2023/040055.
Disclaimer: Curated by HT Syndication.
