- Patent Title: Non-oriented electrical steel sheet and method for producing same
-
Application No.: US16957930Application Date: 2018-05-16
-
Publication No.: US11408041B2Publication Date: 2022-08-09
- Inventor: Hun Ju Lee , Yong-Soo Kim , Su-Yong Shin
- Applicant: POSCO
- Applicant Address: KR Pohang-si
- Assignee: POSCO
- Current Assignee: POSCO
- Current Assignee Address: KR Pohang-si
- Agency: Morgan, Lewis & Bockius LLP
- Priority: KR10-2017-0179918 20171226
- International Application: PCT/KR2018/005623 WO 20180516
- International Announcement: WO2019/132129 WO 20190704
- Main IPC: C21D6/00
- IPC: C21D6/00 ; C21D8/12 ; C22C38/00 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/12 ; C22C38/14 ; C22C38/60

Abstract:
A non-oriented electrical steel sheet according to an exemplary embodiment of the present invention includes 2.0 to 4.0% of Si, 0.05 to 1.5% of Al, 0.05 to 2.5% of Mn, equal to or less than 0.005% of C (excluding 0%), equal to or less than 0.005% of N (excluding 0%), 0.001 to 0.1% of Sn, 0.001 to 0.1% of Sb, 0.001 to 0.1% of P, 0.001 to 0.01% of As, 0.0005 to 0.01% of Se, 0.0005 to 0.01% of Pb, 0.0005 to 0.01% of Bi, a remainder of Fe, and inevitable impurities, as wt %, wherein a Taylor factor (M) of each crystal grain included in a steel sheet is expressed in Formula 1, and an average Taylor factor value of the steel sheet is equal to or less than 2.75: M = σ τ CRSS [ Formula 1 ] (here, σ is a macro stress, and τCRSS is a critical resolved shear stress).
Public/Granted literature
- US20210062281A1 NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR PRODUCING SAME Public/Granted day:2021-03-04
Information query