Patent ID: 7608154

Claim:
A nonoriented electrical steel sheet comprising: by mass %, C: 0.01% or less, Si: 0.1% or more and 7.0% or less, Al: 0.005% or more and 3.0% or less, Mn: 0.1% or more and 2.0% or less, S: 0.0005% or more and 0.005% or less, Cu: 0.5% or less and 0.001% or more, rare earth element (REM): 0.0005% or more and 0.03% or less, and the balance Fe and unavoidable impurities, wherein the following expression (1) is met, [REM]×[Cu] 3 ≧7.5×10 −11 (1) where [REM] represents REM mass % and [Cu] represents Cu mass %, and wherein the number density of copper sulfides having a sphere-equivalent radius of 100 nm or less is 0.4×10 10 [inclusion/mm 3 ] or more, and 1×10 10 [inclusion/mm 3 ] or less.