US Patent Issued to POSCO on June 16 for "Ultra-thick steel sheet with excellent strength and low-temperature impact toughness and manufacturing method thereof" (South Korean Inventors)

ALEXANDRIA, Va., June 16 -- United States Patent no. 12,655,496, issued on June 16, was assigned to POSCO Co. LTD (Pohang-si, South Korea).

"Ultra-thick steel sheet with excellent strength and low-temperature impact toughness and manufacturing method thereof" was invented by Woogyeom Kim (Pohang-si, South Korea), Sangho Kim (Pohang-si, South Korea) and Daewoo Baek (Pohang-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "Disclosed are an ultra-thick steel sheet may have excellent strength and impact toughness, and a manufacturing method thereof. The ultra-thick steel sheet comprises, in percent by weight (wt %), 0.06 to 0.1% of C, 0.3 to 0.5% of Si, 1.35 to 1.65% of Mn, 0.015 to 0.04% of Al, 0.0...