| 摘要 |
PROBLEM TO BE SOLVED: To provide a soft magnetic steel plate having excellent magnetic properties and a manufacturing method thereof, and a soft magnetic member and a manufacturing method thereof.SOLUTION: A soft magnetic steel plate has a component composition containing, by mass%, C: 0.001-0.02%, Si: 0-0.05%, Mn: 0.05-0.5%, P: 0-0.02%, S: 0-0.1%, Al: 0-0.01%, Cr: 0-0.1%, N: 0-0.005%, and the balance Fe with inevitable impurities. The soft magnetic steel plate has a plate thickness of 0.8-4.0 mm and an average crystal grain size of 5-50 μm, and has a ratio of the KAM value Ka of the soft magnetic steel plate to the KAM value Kb of the soft magnetic steel plate after annealing at 850°C for 3 h, Ka/Kb, is 1.2-4.5.SELECTED DRAWING: None |
