MUMBAI, India, Sept. 7 -- Intellectual Property India has published a patent application (202617082401 A) filed by Posco Co. , Ltd on July 03, 2026, for Plated Steel Sheet And Method For Manufacturing Same.
Inventors include Lee, Won-Hwi; Kwon, Min-Hyeok; and Kim, Do-Yub.
The application for the patent was published on September 04, 2026, under issue no. 36/2026.
Abstract: The present invention relates to a plated steel sheet and a method for manufacturing same, the plated steel sheet comprising: a base steel sheet that contains, in wt%, 0.10-0.25% of C, 1.5-5.0% of Mn, 0.5-2.5% of Si, 1.5% or less of Cr, 0.005-0.100% of Al, 0.10% or less of P, 0.020% or less of S, and 0.0050% or less of B, with the remainder comprising Fe and inevitable impurities; and a plating layer formed on at least one surface of the base steel sheet, wherein the depth of an internal oxide layer composed of an oxide of at least one among Mn, Si, Cr, and B is 3-15 µm from the interface between the base steel sheet and the plating layer toward the middle of the plated steel sheet in the thickness direction. More specifically, the present invention relates to a plated steel sheet having excellent surface quality and welding LME resistance, and a method for manufacturing same.
Disclaimer: Curated by HT Syndication.
