US Patent Issued to POSCO on Jan. 13 for "Steel plate having excellent strength and low-temperature impact toughness and method for manufacturing same" (South Korean Inventors)

ALEXANDRIA, Va., Jan. 13 -- United States Patent no. 12,522,886, issued on Jan. 13, was assigned to POSCO (Pohang-si, South Korea).

"Steel plate having excellent strength and low-temperature impact toughness and method for manufacturing same" was invented by Jae-Yong Chae (Pohang-si, South Korea) and Hong-Ju Lee (Pohang-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "A steel plate used in fields, such as industrial machinery, having excellent low-temperature impact toughness along with high strength and high hardness, and a method for manufacturing the same. The steel plate includes, by weight: 0.8 to 1.2% of carbon (C), 0.1 to 0.6% of manganese (Mn), 0.05 to 0.5% of silicon (Si), 0.02% or les...