Comparison of magnetic characteristics (JFE in-house data) : Rolling direction, shear cross-section

Material Thickness (mm) Specific resistance (mW-m) DC max relative permeability Saturation magnetiza- tion (T) Magnetic flux density B8(T) Magnetic flux density B25(T) Magneto- striction l10/400 (X10-6) Core loss (W/kg) W10/50 W10/400 W10/1k W5/2k W2/5k W1/10k W0.5/20k JNEX-Core 0.10 0.82 23.000 1.80 1.29 1.40 0.1 0.5 5.7 18.7 13.7 11.3 8.3 6.9 Grain-oriented silicon steel 0.23 0.35 0.48 92.000 94.000 2.03 1.92 1.92 1.96 1.96 -0.8 0.3 0.4 7.8 12.2 35.0 55.0 33.0 49.5 33.0 49.5 30.0 47.0 32.0 49.0 Non-oriented silicon steel 0.20 0.35 0.57 15.000 18.000 2.03 1.96 1.44 1.45 1.53 1.56 7.8 0.7 0.7 11.0 14.4 38.5 62.0 33.2 50.2 26.2 38.0 23.0 33.0 - - Fe-based amorphous 0.025 1.30 300.000 1.50 1.38 - 27.0 0.1 1.5 5.5 8.1 4.0 3.6 3.3 Ferrite Bulk - 3.500 - 0.37 - 21.0 - - - - 2.2 2.0 1.8

*W10/50 is the core loss at 50Hz, 1T(=10kG) when the magnetic flux sine wave is excited *B8 is the magnetic flux density at 800A/m *l10/400 is the magnetostviction at 400Hz, 1T when the magentic flux sine wave is excited.