MUMBAI, India, Aug. 17 -- Intellectual Property India has published a patent application (202617084424 A) filed by Jfe Steel Corporation on July 09, 2026, for Hot-Rolled Annealed Sheet For Electrical Steel Sheet, Method For Producing Same, And Method For Producing Non-Oriented Electrical Steel Sheet.
Inventors include Tanaka Takaaki; Okubo Tomoyuki; Saito Hayato; and Maruyama Shigehiro.
The application for the patent was published on August 14, 2026, under issue no. 33/2026.
Abstract: The present invention provides a hot-rolled annealed sheet for an electrical steel sheet, the hot-rolled annealed sheet being excellent in terms of cold rolling properties (fracture resistance and edge cracking resistance) in a post-process. Provided is a hot-rolled annealed sheet for an electrical steel sheet, the hot-rolled annealed sheet having a component composition that contains, in mass%, 0.010% or less of C, 1.0% to 5.0% inclusive of Si, 0.05% to 5.0% inclusive of Mn, 0.1% or less of P, 0.01% or less of S, 3.0% or less of Al, and 0.0080% or less of N, with the balance being made up of Fe and inevitable impurities. At least at one of the plate width edge parts of the hot-rolled annealed sheet for an electrical steel sheet, the ratio dC/dE of the average crystal grain size dC at the plate width center part to the average crystal grain size dE at a position of 10 mm from the plate width edge part is 1.2 or more.
Disclaimer: Curated by HT Syndication.
