NONORIENTED SILICON STEEL SHEET HAVING EXCELLENT HIGH FREQUENCY MAGNETIC PROPERTY USED AFTER HEATING STAGE SUBSEQUENTLY TO FINISH ANNEALING AND PRODUCTION METHOD THEREFOR

摘要

PROBLEM TO BE SOLVED: To provide a nonoriented silicon steel sheet which exhibits low core loss in high frequency, and is suitable as electric materials such as core materials used in high frequency.;SOLUTION: The nonoriented silicon steel sheet having excellent high frequency magnetic properties has a composition containing, by weight, ≤0.0015% C, 1.0 to 4.0% Si, 0.1 to 2.0% Al, 0.05 to 2.0% Mn, ≤0.1% (inclusive of zero) P, ≤0.005% (inclusive of zero) N, ≤0.02% (inclusive of zero) S and 0.4 to 5.0% Cr, and the balance substantially Fe.;COPYRIGHT: (C)2002,JPO