Patent ID: 9362032
Filing Date: 2016-06-07
CPC Classification: C21D,C22C,H01F

Claim Text:
1. A high-strength non-oriented electrical steel sheet, containing: in mass %, C: 0.010% or less; Si: not less than 2.0% nor more than 4.0%; Mn: not less than 0.05% nor more than 0.50%; Al: not less than 0.2% nor more than 3.0%; N: 0.005% or less; S: not less than 0.005% nor more than 0.030%; and Cu: not less than 1.2% nor more than 3.0%, a balance being composed of Fe and inevitable impurities, an expression (1) being established where a Mn content is represented as [Mn] and a S content is represented as [S], not less than 2.5×10 hot rolling having been performed at a finishing temperature of 1000° C. or higher and a coiling temperature of 650° C. or lower,