Invention Grant
- Patent Title: Hot-rolled steel sheet for non-oriented electrical steel sheet, non-oriented electrical steel sheet, and method for manufacturing same
-
Application No.: US17797384Application Date: 2021-02-19
-
Publication No.: US12168809B2Publication Date: 2024-12-17
- Inventor: Yoshihiro Arita , Takeru Ichie , Fuminobu Murakami
- 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: JP2020-027000 20200220
- International Application: PCT/JP2021/006348 WO 20210219
- International Announcement: WO2021/167065 WO 20210826
- Main IPC: C21D8/12
- IPC: C21D8/12 ; C21D9/46 ; C22C38/00 ; C22C38/02 ; C22C38/04 ; C22C38/06 ; C22C38/16 ; C23G1/08

Abstract:
A hot-rolled steel sheet for a non-oriented electrical steel sheet according to one aspect of the present invention contains, by mass %, C: 0.0050% or less, Si: 0.5% or more and 3.5% or less, Mn: 0.1% or more and 1.5% or less, Al: 0.1% or more and 1.5% or less, Cu: 0.01% or more and 0.10% or less, Sn: 0.01% or more and 0.20% or less, and a remainder including Fe and impurities, in which the hot-rolled steel sheet has a Cu concentration peak value of 0.12% or more in a range from a surface thereof to a depth of 10 μm.
Public/Granted literature
Information query