| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive steel sheet having high magnetic permeability. SOLUTION: In the method of manufacturing a steel sheet of 0.1 to 2 mm sheet thickness, having a composition consisting of, by weight, <=0.005% C, <=0.5% Si, 0.05-0.5% Mn, 0.5-3.5% Al, <=0.02% (including 0%) S, <=0.2% P, <=0.005% (including 0%) N, and the balance essentially Fe, temper rolling of 0.5 to 7% draft is performed after finish annealing and then magnetic annealing is carried out at 850 to 1000 deg.C. |
