| 摘要 |
A non-oriented magnetic steel sheet having either a composition which contains, in mass%, at most 0.005% of C, 1.5 to 4% of Si, 1.0 to 5% of Mn, at most 0.1% of P, at most 0.005% of S, at most 3% of Al, at most 0.005% of N, and at most 0.0030% of Bi with the balance being Fe and unavoidable impurities or a composition which contains, in mass%, at most 0.005% of C, 1.5 to 4% of Si, 1.0 to 5% of Mn, at most 0.1% of P, at most 0.005% of S, at most 3% of Al, at most 0.005% of N, and at most 0.0030% of Bi, and further contains 0.0005 to 0.005% of Ca and/or 0.0002 to 0.005% of Mg. This non-oriented magnetic steel sheet stably exhibits excellent high frequency iron loss characteristics, even when the steel sheet contains a large amount of Mn. |
