MUMBAI, India, Aug. 17 -- Intellectual Property India has published a patent application (202617082946 A) filed by Jfe Steel Corporation on July 06, 2026, for High-Strength Hot-Dip Galvanized Steel Sheet And Method For Producing Same.
Inventors include Aoyama Mai; Hoshino Katsuya; Tahara Daisuke; Hoshimi Ryouta; and Terashima Shotaro.
The application for the patent was published on August 14, 2026, under issue no. 33/2026.
Abstract: Provided is a high-strength hot-dip galvanized steel sheet which has a tensile strength of 780 MPa or more and excellent hydrogen desorption properties. Specifically provided is a high-strength hot-dip galvanized steel sheet which comprises a base material steel sheet and a hot-dip galvanization layer that is formed on the surface of the base material steel sheet, wherein: the base material steel sheet has a specific component composition; the hot-dip galvanization layer internally comprises cracks that extend from the surface of the hot-dip galvanization layer to the interface between the base material steel sheet and the hot-dip galvanization layer, and are continuous with a crystal grain boundary, in which an oxide is present, of the base material steel sheet at the interface between the base material steel sheet and the hot- dip galvanization layer; the density of the cracks is 10 per mm or more; and the tensile strength is 780 MPa or more.
Disclaimer: Curated by HT Syndication.
