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:
Feb. 28, 2017
Filed:
Apr. 29, 2008
Astrid Perlade, Montigny les Metz, FR;
Xavier Garat, Homecourt, FR;
Jean-louis Uriarte, Metz, FR;
Olivier Bouaziz, Metz, FR;
Josee Drillet, Rozerieulles, FR;
Astrid Perlade, Montigny les Metz, FR;
Xavier Garat, Homecourt, FR;
Jean-Louis Uriarte, Metz, FR;
Olivier Bouaziz, Metz, FR;
Josee Drillet, Rozerieulles, FR;
ArcelorMittal France, Saint Denis, FR;
Abstract
The invention relates to a hot-rolled ferritic steel sheet, the composition of the steel of which comprises, the contents being expressed by weight: 0.001≦C≦0.15%, Mn≦1%, Si≦1.5%, 6%≦Al≦10%, 0.020%≦Ti≦0.5%, S≦0.050%, P≦0.1%, and, optionally, one or more elements chosen from: Cr≦1%, Mo≦1%, Ni≦1%, Nb≦0.1%, V≦0.2%, B≦0.010%, the balance of the composition consisting of iron and inevitable impurities resulting from the smelting, the average ferrite grain size dmeasured on a surface perpendicular to the transverse direction with respect to the rolling being less than 100 microns.