ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,385,117, issued on Aug. 12, was assigned to POSCO Co. LTD (Pohang-si, South Korea).
"Chromium steel sheet having excellent creep strength and high temperature ductility and method of manufacturing same" was invented by Hyun-Je Sung (Pohang-si, South Korea) and Sung-Joon Kim (Pohang-si, South Korea).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided are a chromium steel sheet having excellent creep strength and high-temperature ductility, and a method for manufacturing same. The present invention relates to a chromium steel sheet having excellent creep strength and high-temperature ductility comprising, in percentage by weight: C: 0.04 to 0.15%; Si: ...