FeSiB Alloy Strip Transformer Core Material 1k101 and 1k104 0.025mm
Thickness
Frequency transformer iron core(50－60Hz)
IF power transformer iron core (400Hz－15kHz)
Switch power transformer iron core ( below 10kHz)
Filter reactor, filtering and energy storage inductor,
Power factor correction inductor core( below 50kHz)
Saturable reactor,Pulse compressor iron core
l High Saturation magnetic induction - reduce transformer volume
l High magnetic permeability low coercive force- improve
transformer efficiency
l Low loss(Equivalent 1/3 1/5 of silicon steel sheet)- reduce
transformer temperature rise
l Low magnetizing current - reduce primary coil copper loss of transformer
l Good temperature stability - under 130℃ for long-term work
Typical Properties
Physical properties of FeSiB alloy
| Saturation magnetic induction (Bs) | 1.56T | Hardness (Hv) | 960 |
| Curie temperature (TC) | 410℃ | Density (d) | 7.18g/cm3 |
| Crystallizing temperature( Tx) | 550℃ | Resistivity(r) | 130mW-cm |
| Saturation magnetostriction coefficient (ls) | 27×10-6 | Continuous operating temperature range | -55－130℃ |
Magnetic properties of FeSiB alloy
| Product Type | Transverse magnetic annealing | No magnetic annealing | Longitudinal magnetic annealing |
| Maximum permeability | >2×104 | >20×104 | >25×104 |
| Saturation magnetic induction | 1.5 T | 1.5 T | 1.5 T |
| Residual magnetic induction | <0.5 T | 0.6-1.0 T | 1.2 T |
| Coercive force | <4A/m | <6 A/m | <2.5A/m |
| Loss(50Hz, 1.4T) | <0.2W/kg | <0.13W/kg | <0.25W/kg |
| Loss(400Hz, 1.2T) | <1.8W/kg | <1.25W/kg | <2W/kg |
| Loss(8kHz, 1.0T) | <80W/kg | <60W/kg | <100W/kg |
| Iron loss rate(-55°C –125C ) | <15% | <15% | <15% |
| Iron loss rate(120℃200 H) | <15% | <15% | <15% |
| Performance indicators | FeSiB alloy | Si- steel |
| Saturation magnetic induction(T) | 1.56 | 2.03 |
| Coercive force(A/m) | <4 | <30 |
| Maximum permeability(Gs/Os) | >25×104 | 4×104 |
| Iron loss(W/kg) | 50Hz, 1.3T <0.2 | 50Hz, 1.7T =1.2 |
| Exciting power (VA/kg) | 50Hz, 1.3T <0.5 | 50Hz, 1.7T <0.83 |
| Laminated coefficient | >0.80 | 0.95 |
| Magnetostriction(×10-6) | 27 | 15 |
| Resistivity(Wm-cm) | 130 | 45 |
| Density(g/cm3) | 7.18 | 7.65 |
| Tx(℃) | 550 | － |
| Curie temperature(℃) | 415 | 746 |
| Tensile strength(Mpa) | 1500 | 343 |
| Vickers hardness(HV) | 900 | 181 |
| Thickness(μm) | 30 | 300 |
Size:
| grade | width (mm) | thickness (mm) |
| 1K101 | 3.2～50 | 27～36 |
Other specifications of the strip can be offered according to
customer requirements.
