| 摘要 |
PROBLEM TO BE SOLVED: To produce a steel sheet excellent as the one for motor core for a motor-driven power steering. SOLUTION: This steel sheet for the motor core for the motor-driven power steering contains, by weight <=0.005% C, <=4% Si, <=1% Al, <=0.03% S, 0.05 to 1.5% Mn, <=0.2% P and <=0.005% N, moreover contains Ca in the range of 0.5<=Ca/S<=3, and the balance substantially Fe. |
