| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a steel sheet for magnetic shielding having excellent press formability and blackening treatability, and in which excellent magnetic properties are stably realized at a low cost without requiring special additional components and high temperature heat treatment by users. <P>SOLUTION: The steel sheet has a regulated componential composition comprising, by mass, ≤0.005% C, ≤0.03% Si, 0.1 to 0.5% Mn, ≤0.02% P, ≤0.01% S, ≤0.004% Al, ≤0.005% N, 0.02 to 0.2% Cr and ≤0.02% O, and the balance iron with inevitable impurities, and further has a mean crystal grain size of ≥40 μm. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
