US Patent Issued to POSCO on Feb. 17 for "High-strength blackplate and manufacturing method therefor" (South Korean Inventor)

ALEXANDRIA, Va., Feb. 17 -- United States Patent no. 12,553,112, issued on Feb. 17, was assigned to POSCO (Pohang-si, South Korea).

"High-strength blackplate and manufacturing method therefor" was invented by Jai-Ik Kim (Pohang-si, South Korea).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a high-strength tin blackplate and a manufacturing method therefor.The tin blackplate according to an exemplary embodiment of the present invention includes: by wt %, 0.03 to 0.09% of carbon (C); 0.2 to 0.4% of manganese (Mn); 0.01 to 0.06% of aluminum (Al); 0.15 to 0.45% of chromium (Cr); 0.05 to 0.25% of copper (Cu); 0.03 to 0.08% of titanium (Ti); and the balance of iron (Fe) and inevitabl...