The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 11, 2025
Filed:
Jul. 03, 2015
Arcelormittal, Luxembourg, LU;
Wei Xu, Zelzate, BE;
Artem Arlazarov, Maizeres-les-Metz, FR;
ArcelorMittal, Luxembourg, LU;
Abstract
A method for manufacturing a high-strength sheet including the steps of (i) providing a steel having a chemical composition consisting of, in percent by weight: 0.1%≤C≤0.4%, 4.5%≤Mn≤5.5%, 1%≤Si≤3%, and 0.2%≤Mo≤0.5%, a remainder being Fe and unavoidable impurities; (ii) annealing a rolled sheet made of the steel by soaking the rolled sheet at an annealing temperature AT higher than an Actransformation point of the steel; (iii) quenching the sheet by cooling it down to a quenching temperature QT between the Ms transformation point of the steel and 130° C.; (iv) heating the sheet up to an overaging temperature PT between 300° C. and 500° C. and maintaining the sheet at said overaging temperature PT for an overaging time Pt greater than 10 s; and (v) cooling the sheet down to ambient temperature.