US Patent Issued to ArcelorMittal on March 31 for "Process for manufacturing cold-rolled and annealed steel sheet with a very high strength, and sheet thus produced" (French, Spanish Inventors)

ALEXANDRIA, Va., March 31 -- United States Patent no. 12,590,347, issued on March 31, was assigned to ArcelorMittal (Luxembourg).

"Process for manufacturing cold-rolled and annealed steel sheet with a very high strength, and sheet thus produced" was invented by Javier Gil Otin (Madrid) and Antoine Moulin (Woippy, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention provides a cold-rolled and annealed steel sheet with a strength greater than 1200 MPa, the composition of which includes, the contents being expressed by weight: 0.10%less than equal toCless than equal to0.255, 1%less than equal toMnless than equal to3%, Aless than=0.010%, Siless than equal to2.990%, Sless than equal to0.015...