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.

Date of Patent:
Mar. 31, 2026

Filed:

Jan. 13, 2022
Applicant:

Arcelormittal, Luxembourg, LU;

Inventors:

Javier Gil Otin, Madrid, ES;

Antoine Moulin, Woippy, FR;

Assignee:

ArcelorMittal, Luxembourg, LU;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 9/46 (2006.01); B22D 11/00 (2006.01); C21D 8/02 (2006.01); C21D 8/0221 (2026.01); C21D 9/52 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/22 (2006.01); C22C 38/28 (2006.01); C22C 38/32 (2006.01); C22C 38/38 (2006.01); C23G 1/00 (2006.01); C23G 1/08 (2006.01);
U.S. Cl.
CPC ...
C21D 9/46 (2013.01); B22D 11/001 (2013.01); C21D 8/02 (2013.01); C21D 8/0205 (2013.01); C21D 8/0226 (2013.01); C21D 8/0236 (2013.01); C21D 9/52 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/22 (2013.01); C22C 38/28 (2013.01); C22C 38/32 (2013.01); C22C 38/38 (2013.01); C23G 1/00 (2013.01); C23G 1/08 (2013.01);
Abstract

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%≤C≤0.255, 1%≤Mn≤3%, A≥0.010%, Si≤2.990%, S≤0.015%, P≤0.1% s, N≤0.008%, it being understood that 1%≤Si+Al≤3%, it being understood that Cr+3Mo≥0.3%, Ti in an amount such that Ti/N≥4 and Ti≤0.040%. A balance of the composition includes iron and inevitable impurities resulting from the smelting. The microstructure of the steel includes 15 to 90% bainite, the remainder includes martensite and residual austenite.


Find Patent Forward Citations

Gil Otin, Javier. (2026). Process for manufacturing cold-rolled and annealed steel sheet with a very high strength, and sheet thus produced (U.S. Patent No. 12590347). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12590347

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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