POSCO Holdings Inc.
NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING SAME

Abstract:

A non-oriented electrical steel sheet according to one embodiment of the present invention comprises, by weight %, 1.5 to 4.0% of Si, 0.7 to 2.5% of Al, 1 to 2% of Mn, 0.003 to 0.02% of Cu, at most 0.005% of S (not 0%), and the remainder comprising Fe and unavoidable impurities, and satisfies formulas 1 and 2 below. 150.ltoreq.[Mn]/[Cu].ltoreq.250 [Formula 1] 3.ltoreq.[Cu]/[S].ltoreq.7 [Formula 2] (here, [Mn], [Cu], and [S] represent Mn, Cu, and S contents (weight %), respectively.)