	US 12,215,400 B2
	Non-directional electrical steel sheet and method for producing same
Jaewan Hong, Pohang-si (KR); June Soo Park, Pohang-si (KR); Su-Yong Shin, Pohang-si (KR); and Yong-Soo Kim, Pohang-si (KR)
Assigned to POSCO CO., LTD, Pohang-si (KR)
Appl. No. 17/297,731
Filed by POSCO, Pohang-si (KR)
PCT Filed Nov. 26, 2019, PCT No. PCT/KR2019/016380 § 371(c)(1), (2) Date May 27, 2021, PCT Pub. No. WO2020/111736, PCT Pub. Date Jun. 4, 2020.
Claims priority of application No. 10-2018-0152977 (KR), filed on Nov. 30, 2018.
Prior Publication US 2022/0049322 A1, Feb. 17, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. C21D 9/46 (2006.01); C21D 6/00 (2006.01); C21D 8/12 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/14 (2006.01); H01F 1/147 (2006.01)

CPC C21D 9/46 (2013.01) [C21D 6/005 (2013.01); C21D 6/008 (2013.01); C21D 8/1222 (2013.01); C21D 8/1233 (2013.01); C21D 8/1272 (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 38/14 (2013.01); H01F 1/14766 (2013.01); C22C 2202/02 (2013.01)]

6 Claims

1. A non-oriented electrical steel sheet including, in wt %, Si at 0.2% to 4.3%, Mn at 0.05% to 2.5%, Al at 0.1% to 2.1%, Bi at 0.0003% to 0.003%, Ga at 0.0005% to 0.003%, and a balance of Fe and inevitable impurities,

wherein the non-oriented electrical steel sheet satisfies Formula 2:

−0.002≤[Bi]+[Ga]≤0.005, [Formula 2]

wherein in Formula 2, [Bi] and [Ga] represent content by wt % of Bi and Ga, respectively.