MUMBAI, India, Oct. 26 -- Intellectual Property India has published a patent application (202617091528 A) filed by Jfe Steel Corporation on July 28, 2026, for Surface-Treated Steel Sheet And Method For Producing Same.
Inventors include Ueno Takashi; Kawamura Yuto; Yamada Yasunori; and Tomozawa Masanari.
The application for the patent was published on October 23, 2026, under issue no. 43/2026.
Abstract: Provided is a surface-treated steel sheet that can be produced without using hexavalent chromium and that has excellent film corrosion resistance, paint corrosion resistance, film wet adhesiveness, and weldability. The surface-treated steel sheet comprises a steel sheet and a chromium-containing layer disposed on at least one surface of the steel sheet. The S/L determined by a prescribed method is 0.10 to 0.70. The chromium-containing layer has a C to Cr atomic ratio of 0.2% to 50.0%.
Disclaimer: Curated by HT Syndication.
