US Patent Issued to NIPPON STEEL NISSHIN on Feb. 18 for "High-strength Zn-Al-Mg-based surface-coated steel sheet and method for producing same" (Japanese Inventors)

ALEXANDRIA, Va., Feb. 19 -- United States Patent no. 12,227,851, issued on Feb. 18, was assigned to NIPPON STEEL NISSHIN Co. LTD. (Tokyo).

"High-strength Zn-Al-Mg-based surface-coated steel sheet and method for producing same" was invented by Susumu Fujiwara (Tokyo), Shinya Uesugi (Tokyo) and Tomoharu Shigetomi (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A high-strength surface-coated steel sheet includes a base steel sheet having a composition by mass of C: 0.01 to 0.20%, Si: 0.01 to 0.50%, Mn: 0.10 to 2.50%, P: 0.005 to 0.050%, B: 0.0005 to 0.010%, Ti: 0.01 to 0.20%, Nb: 0 to 0.10%, Mo: 0 to 0.50%, Cr: 0 to 0.50%, Al: 0.01 to 0.10%, and the balance of Fe and inevitable impurities; and a Zn-Al-Mg-...