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. 22, 2022
Filed:
Dec. 19, 2017
Applicant:
Posco, Pohang-si, KR;
Inventors:
Hunju Lee, Pohang-si, KR;
Dong Gwan Kim, Pohang-si, KR;
So Hyun Park, Pohang-si, KR;
Kyunghan Kim, Pohang-si, KR;
Assignee:
POSCO, Pohang-si, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 9/46 (2006.01); C22C 38/34 (2006.01); C22C 38/24 (2006.01); C22C 38/06 (2006.01); C22C 38/04 (2006.01); C22C 38/00 (2006.01); C21D 8/12 (2006.01); C21D 8/00 (2006.01); C21D 6/00 (2006.01); H01F 1/147 (2006.01);
U.S. Cl.
CPC ...
C21D 9/46 (2013.01); C21D 6/002 (2013.01); C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/005 (2013.01); C21D 8/12 (2013.01); C22C 38/001 (2013.01); C22C 38/004 (2013.01); C22C 38/04 (2013.01); C22C 38/06 (2013.01); C22C 38/24 (2013.01); C22C 38/34 (2013.01); H01F 1/14791 (2013.01); C22C 2202/02 (2013.01);
Abstract
An embodiment of the present invention provides a non-oriented electrical steel sheet, including Si at 2.0 to 4.0 wt %, Al at 1.5 wt % or less (excluding 0 wt %), Mn at 1.5 wt % or less (excluding 0 wt %), Cr at 0.01 to 0.5 wt %, V at 0.0080 to 0.015 wt %, C at 0.015 wt % or less (excluding 0 wt %), N at 0.015 wt % or less (excluding 0 wt %), and the remainder including Fe and other impurities unavoidably added thereto.0.004≤([C]+[N])≤0.022  [Equation 1] (In Equation 1, [C] and [N] represent a content (wt %) of C and N, respectively.)