ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,772, issued on Jan. 27, was assigned to NIPPON STEEL Corp. (Tokyo).
"Hot rolled steel sheet and method for producing same" was invented by Kohei Nakada (Tokyo) and Takeshi Toyoda (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a hot rolled steel sheet comprising a predetermined chemical composition, and a metallic structure comprising, by area ratio, pearlite: 90 to 100%, pseudo pearlite: 0 to 10%, and pro-eutectoid ferrite: 0 to 1%, wherein the pearlite has an average lamellar spacing of 0.20 micro metre or less, and the pearlite has an average pearlite block size of 20.0 micro metre or less. Provided is a method for producing a h...