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:
Oct. 05, 2021
Filed:
May. 20, 2016
Applicant:
AK Steel Properties, Inc., West Chester, OH (US);
Inventors:
Luis Gonzalo Garza-Martinez, Wyoming, OH (US);
Grant Aaron Thomas, Liberty Township, OH (US);
Amrinder Singh Gill, West Chester, OH (US);
Assignee:
Cleveland-Cliffs Steel Properties Inc., Cincinnati, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/58 (2006.01); C22C 38/06 (2006.01); C22C 38/34 (2006.01); C22C 38/42 (2006.01); C22C 38/44 (2006.01); C22C 38/04 (2006.01); C22C 38/38 (2006.01); C21D 6/00 (2006.01); C22C 38/22 (2006.01); C22C 38/02 (2006.01); C21D 8/02 (2006.01); C22C 38/18 (2006.01); C21D 9/46 (2006.01);
U.S. Cl.
CPC ...
C22C 38/58 (2013.01); C21D 6/002 (2013.01); C21D 6/005 (2013.01); C21D 8/0226 (2013.01); C21D 8/0236 (2013.01); C21D 8/0247 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/18 (2013.01); C22C 38/22 (2013.01); C22C 38/34 (2013.01); C22C 38/38 (2013.01); C22C 38/42 (2013.01); C22C 38/44 (2013.01); C21D 9/46 (2013.01); C21D 2211/001 (2013.01);
Abstract
A high strength steel comprises up to about 0.25 wt % C, up to about 2.0 wt % Si, up to about 2.0 wt % Cr, up to 14% Mn, and less than 0.5% Ni. It preferably has an Mtemperature less than 50° C. The high strength steel may have a tensile strength of at least 1000 MPa and total elongations of at least about 25% after hot rolling. It may have a tensile strength of at least 1200 MPa and total elongations of at least about 20% after hot rolling.