Invention Grant
- Patent Title: Non-oriented electrical steel sheet
-
Application No.: US17769272Application Date: 2020-11-13
-
Publication No.: US12211633B2Publication Date: 2025-01-28
- Inventor: Tesshu Murakawa , Miho Tomita , Hiroshi Fujimura , Satoshi Kano
- Applicant: NIPPON STEEL CORPORATION
- Applicant Address: JP Tokyo
- Assignee: NIPPON STEEL CORPORATION
- Current Assignee: NIPPON STEEL CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2019-206709 20191115,JP2019-206813 20191115
- International Application: PCT/JP2020/042428 WO 20201113
- International Announcement: WO2021/095846 WO 20210520
- Main IPC: H01F1/147
- IPC: H01F1/147 ; C21D1/30 ; C21D6/00 ; C21D8/12 ; C21D9/46 ; C22C38/00 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/08 ; C22C38/10 ; C22C38/16 ; C22C38/60

Abstract:
What is provided is a non-oriented electrical steel sheet having a chemical composition in which, by mass %, C: 0.010% or less, Si: 1.50% to 4.00%, sol. Al: 0.0001% to 1.0%, S: 0.010% or less, N: 0.010% or less and one or a plurality of elements selected from the group consisting of Mn, Ni, Co, Pt, Pb, Cu and Au: 2.50% to 5.00% in total with a remainder including Fe and impurities, in which a recrystallization rate is 1% to 99% in a metallographic structure, a sheet thickness is 0.50 mm or less, and, in the case of measuring a magnetic flux density B50 after annealing the non-oriented electrical steel sheet at 800° C. for two hours, a magnetic flux density B50 in a 45° direction with respect to a rolling direction is 1.75 T or more.
Public/Granted literature
- US20240047105A1 NON-ORIENTED ELECTRICAL STEEL SHEET Public/Granted day:2024-02-08
Information query