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:
Jun. 12, 2018
Filed:
Dec. 09, 2015
Applicant:
Posco, Pohang-si, KR;
Inventors:
Kyu-Seok Han, Pohang-si, KR;
Jae-Soo Lim, Pohang-si, KR;
Byung-Deug Hong, Pohang-si, KR;
Chan-Hee Han, Pohang-si, KR;
Assignee:
POSCO, Pohang-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/60 (2006.01); C21D 8/12 (2006.01); H01F 1/147 (2006.01); H01F 1/16 (2006.01); H01F 1/01 (2006.01); C22C 38/00 (2006.01); C30B 29/52 (2006.01);
U.S. Cl.
CPC ...
H01F 1/01 (2013.01); C21D 8/12 (2013.01); C21D 8/1244 (2013.01); C21D 8/1272 (2013.01); C22C 38/00 (2013.01); C22C 38/001 (2013.01); C22C 38/002 (2013.01); C22C 38/02 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/60 (2013.01); C30B 29/52 (2013.01); C21D 2201/05 (2013.01); C21D 2211/004 (2013.01);
Abstract
Provided is a grain-oriented electric steel sheet having superior magnetic property and to a grain-oriented electric steel sheet including 2.0 to 4.5 weight % of Si, 0.001 to 0.10 weight % of C, 0.010 weight % or lower of Al, 0.08 weight % or lower of Mn, 0.005 weight % or lower of N, 0.002 to 0.050 weight % of S, the remainder being Fe and other unavoidable impurities. The steel sheet having been subjected to secondary recrystallization using at least any one of grain boundary-segregated elementary S and an FeS precipitate as a grain growth inhibitor.