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:
Apr. 30, 2019
Filed:
Dec. 26, 2013
Applicant:
Posco, Pohang-si Gyeongsangbuk-do, KR;
Inventors:
Assignee:
POSCO, Pohang-si, Gyeongsangbuk-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/60 (2006.01); C22C 38/08 (2006.01); C22C 38/02 (2006.01); C22C 38/16 (2006.01); C22C 38/00 (2006.01); C21D 9/46 (2006.01); C21D 8/02 (2006.01); C21D 3/04 (2006.01);
U.S. Cl.
CPC ...
C21D 9/46 (2013.01); C21D 3/04 (2013.01); C21D 8/0205 (2013.01); C21D 8/0226 (2013.01); C21D 8/0236 (2013.01); C21D 8/0263 (2013.01); C21D 8/0273 (2013.01); C21D 8/0278 (2013.01); C22C 38/00 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/08 (2013.01); C22C 38/16 (2013.01); C22C 38/60 (2013.01); C21D 8/02 (2013.01); C21D 2211/001 (2013.01); C21D 2211/005 (2013.01);
Abstract
The present invention relates to a lightweight steel sheet and a method of manufacturing the same, wherein high strength and ductility can be achieved in the lightweight steel sheet even when a small amount of carbon and manganese is added, by preventing loss of austenite due to decarburizing through inhibiting decarburization, which occurs during a heat treatment step of a steel sheet containing austenite.