Ohmalloy Material Co.,Ltd
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Customized Size Transformer Core Material Strip With Insulation Tape Black Color
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Features:
Typical Properties
Physical properties of Nanocrystalline alloy
| Saturation magnetic induction (Bs) | 1.25T | Hardness (Hv) | 880 |
| Curie temperature (TC) | 560ºC | Density (d) | 7.2g/cm3 |
| Crystallizing temperature( Tx) | 510ºC | Resistivity(r) | 90mW-cm |
| Saturation magnetostriction coefficient (ls) | <2×10-6 | Continuous operating temperature range | -55-130ºC |
Magnetic properties of Nanocrystalline alloy
| Product Type | Transverse magnetic annealing | No magnetic annealing | Longitudinal magnetic annealing |
| Initial permeability | >2×104 | >8×104 | >1×104 |
| Maximum permeability | >5×104 | >45×104 | >50×104 |
| Residual magnetic induction | <0.2 T | 0.6 T | >0.85 T |
| Coercive force | <1.8A/m | <0.8A/m | <1.8A/m |
| Iron loss P(20kHz, 0.5T) | <30W/kg | <50 W/kg | <90W/kg |
| Iron loss P(100kHz, 0.3T) | <150W/kg | <150 W/kg | <300W/kg |
| Iron loss rate(-55°C -125C ) | <15% | <15% | <15% |
The comparison between Nanocrystalline alloy and Permalloy iron alloy
| Basic parameter | Superfine crystal iron core | Permalloy iron alloy (1J85) | Ferrite |
| Saturation magnetic induction Bs(T) | 1.25 | 0.75 | 0.5 |
| Residual magnetic induction Br(T) | 0.2~0.9 | - | 0.20 |
| Saturation magnetostriction coefficient (×10-6) | <2 | <2 | 4 |
| Resistivity (mmW-cm ) | 80 | 56 | 106 |
| Curie temperature /ºC | 570 | 400 | <200 |
| Initial permeability μ0(Gs/Oe) | >8×104 | >8×104 | - |
| Maximum permeability μm(Gs/Oe) | >50×104 | 60×104 | 4×104 |
| Coercive force Hc (A/m) | <2 | <1 | 6 |
| Iron loss (20KHz,0.5T) (W/Kg) | <35 | - | No |
| Iron loss (50KHz,0.3T) (W/Kg) | <50 | - | No |
