A non-oriented electrical steel sheet according to one embodiment of the present invention comprises, in wt%, 2.5 to 4.0% of Si, 0.1 to 1.0% of Mn, 0.5 to 1.5% of Al, 0.002 to 0.015% of P, 0.002 to 0.01% of As, and the balance of Fe and inevitable impurities, and satisfies the following expressions 1 and 2. [Expression 1] 0.005≤([P]+[As])≤0.015 (in expression 1, [P] and [As] represent the contents (wt%) of P and A, respectively) [Expression 2] [STD]≤0.7×[GS] ([GS] represents the average crystal grain diameter (㎛) measured when 10,000 or more crystal grains having a grain diameter of 5 to 500 ㎛ in the surface of the steel sheet are observed; and STD represents the standard deviation (㎛) at that time.)
展开▼
