US Patent Issued to THE UNIVERSITY OF HONG KONG on May 12 for "Strong and ductile medium manganese steel and method of making" (Chinese Inventors)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,429, issued on May 12, was assigned to THE UNIVERSITY OF HONG KONG (Hong Kong).

"Strong and ductile medium manganese steel and method of making" was invented by Mingxin Huang (Hong Kong) and Chengpeng Huang (Hong Kong).

According to the abstract* released by the U.S. Patent & Trademark Office: "An ultra-strong, ductile and cheap medium manganese steel comprises in percentage by mass: 8-12 wt. % Mn, 0.2-0.4 wt. % C, 1-3 wt. % Al, 0.05-0.39 wt. % V, and the balance of Fe. The manufacturing method of the ultra-strong and ductile medium manganese steel includes the steps of: (a) hot rolling an ingot at 900-1200deg C. into a steel sheet (or plate, or bar); (b) air cooling or water quen...