公开(公告)号：US20240038422A1

公开(公告)日：2024-02-01

申请号：US18268387

申请日：2021-12-17

Applicant: POSCO Co., Ltd

Inventor： Hunju LEE ,  Yongsoo KIM ,  Suyong SHIN

IPC: H01F1/147 ,  C22C38/14 ,  C22C38/12 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/00 ,  C21D9/46 ,  C21D8/12 ,  C21D6/00 ,  C21D1/18 ,  C21D1/74

CPC classification number: H01F1/14766 ,  C22C38/14 ,  C22C38/12 ,  C22C38/06 ,  C22C38/04 ,  C22C38/02 ,  C22C38/004 ,  C22C38/002 ,  C22C38/001 ,  C21D9/46 ,  C21D8/1222 ,  C21D8/1233 ,  C21D8/1261 ,  C21D8/1272 ,  C21D6/005 ,  C21D6/008 ,  C21D1/18 ,  C21D1/74 ,  C22C2202/02

Abstract: A non-oriented electrical steel sheet according to an exemplary embodiment of the present invention includes 3.3 to 4.0 weight % of Si; 0.4 to 1.5 weight % of Al; 0.2 to 1.0 weight % of Mn; 0.0015 to 0.0040 weight % of C; 0.0005 to 0.0020 weight % of N; 0.0005 to 0.0025 weight % of S; 0.005 to 0.01 weight % of Mo; 0.0005 to 0.0020 weight % of Ti; 0.0005 to 0.0020 weight % of Nb; and 0.0005 to 0.0020 weight % of V, with the remainder including Fe and other unavoidable impurities.