Patent ID: 11962184
Assignee: JFE STEEL CORPORATION
Field: Materials, metallurgy (Chemistry)
Classification: CPC C  H  B  Y | IPC B  C  H

Claim 0:
1. A method for producing a non-oriented electrical steel sheet comprising
subjecting a steel slab having a component composition comprising C: not more than 0.0050 mass %, Si: 2.8 to 6.5 mass %, Mn: 0.05 to 2.0 mass %, P: not more than 0.10 mass %, S: not more than 0.0050 mass %, Al: 0.3 to 2 mass %, N: not more than 0.0050 mass %, Zn: 0.0005 to 0.0050 mass %, Ti: not more than 0.0030 mass %, Nb: not more than 0.0030 mass %, 0: not more than 0.0050 mass %, satisfying Si+Al≥4 mass % and the remainder being Fe and inevitable impurities to a hot rolling, a hot band annealing, a cold rolling and a finish annealing, characterized in that, a yield stress of the steel sheet after the finish annealing is made to not less than 480 MPa.