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:
Sep. 08, 2026
Filed:
May. 19, 2017
Applicant:
Arcelormittal, Luxembourg, LU;
Inventors:
Colin Scott, Brantford, CA;
Blandine Remy, Sanry les Vigy, FR;
Assignee:
ArcelorMittal, Luxembourg, LU;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C 38/00 (2006.01); C21D 6/00 (2006.01); C21D 8/0247 (2026.01); C21D 8/0278 (2026.01); C21D 9/46 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/08 (2006.01); C22C 38/12 (2006.01); C22C 38/14 (2006.01); C22C 38/16 (2006.01); C22C 38/20 (2006.01); C22C 38/22 (2006.01); C22C 38/24 (2006.01); C22C 38/28 (2006.01); C22C 38/32 (2006.01); C22C 38/34 (2006.01); C22C 38/38 (2006.01); C22C 38/46 (2006.01); C22C 38/58 (2006.01); C23C 2/02 (2006.01); C23C 2/06 (2006.01); C23C 2/12 (2006.01); C23C 2/28 (2006.01); C23C 2/40 (2006.01); C21D 8/02 (2006.01); C21D 8/0221 (2026.01);
U.S. Cl.
CPC ...
C21D 8/0268 (2013.01); C21D 6/005 (2013.01); C21D 8/0247 (2013.01); C21D 8/0284 (2013.01); C21D 9/46 (2013.01); C22C 38/001 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/08 (2013.01); C22C 38/12 (2013.01); C22C 38/14 (2013.01); C22C 38/16 (2013.01); C22C 38/20 (2013.01); C22C 38/22 (2013.01); C22C 38/24 (2013.01); C22C 38/28 (2013.01); C22C 38/32 (2013.01); C22C 38/34 (2013.01); C22C 38/38 (2013.01); C22C 38/46 (2013.01); C22C 38/58 (2013.01); C23C 2/02 (2013.01); C23C 2/0224 (2022.08); C23C 2/024 (2022.08); C23C 2/06 (2013.01); C23C 2/12 (2013.01); C23C 2/28 (2013.01); C23C 2/40 (2013.01); C21D 8/02 (2013.01); C21D 8/0236 (2013.01); C21D 2201/02 (2013.01); C21D 2211/001 (2013.01); C21D 2211/004 (2013.01);
Abstract
A TWIP steel sheet is provided having an austenitic matrix including by weight: 0.1≤C≤1.2%, 13.0≤Mn<25.0%, 0.1≤Si≤3.0%, 0.1≤Cu≤5.0%, S≤0.030%, P≤0.080%, N≤0.1%, 0.1≤Al≤4.0% and 0.1≤V≤2.50% in such way that:—when the amount of Al<2.0%, the weight ratio Al/V is between 0.2 and 8 or—when the amount of Al≥2.0%, the amount of V>0.25%, and on a purely optional basis, one or more of Nb≤0.5%, B≤0.005%, Cr≤1.0%, Mo≤0.40%, Ni≤1.0%, Ti≤0.5%, and/or 0.06≤Sn≤0.2%, the remainder of the composition being made of iron and inevitable impurities resulting from elaboration.