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:
Jul. 14, 2020
Filed:
Mar. 08, 2019
Applicant:
AK Steel Properties, Inc., West Chester, OH (US);
Inventors:
Amrinder Singh Gill, West Chester, OH (US);
Erik James Pavlina, Lebanon, OH (US);
Paul Valdas Janavicius, Wyoming, OH (US);
Assignee:
AK Steel Properties, Inc., West Chester, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 8/00 (2006.01); B32B 15/01 (2006.01); C23F 17/00 (2006.01); C21D 8/02 (2006.01); C23C 2/06 (2006.01); C23C 2/28 (2006.01); C25D 5/36 (2006.01); C23C 2/12 (2006.01); C21D 8/04 (2006.01); C25D 3/22 (2006.01);
U.S. Cl.
CPC ...
C21D 8/00 (2013.01); B32B 15/013 (2013.01); C21D 8/0231 (2013.01); C21D 8/0284 (2013.01); C21D 8/0431 (2013.01); C23C 2/06 (2013.01); C23C 2/12 (2013.01); C23C 2/28 (2013.01); C23F 17/00 (2013.01); C25D 5/36 (2013.01); C21D 2211/001 (2013.01); C21D 2211/008 (2013.01); C25D 3/22 (2013.01);
Abstract
Warming a metastable steel after coating and before or during cold rolling suppresses the transformation of austenite to martensite, resulting in lower mill loads and higher amounts of reduction at similar loads. As-warm rolled steel has enhanced mechanical properties when compared to steel reduced the same amount by cold rolling at room temperature.