| OTHERS |
| Item | Unit | Nd-Fe-B Bond | Anisotropic Rubber Magnet |
Isotropic Rubber Magnet |
|
| Compositon | — | Nd2•Fe14•B | — | — | |
| Molding Process | — | Compression | Injection | Rolling | Rolling |
| Residual Flux Density Br |
mT | 640 to 710 | 640 to 710 | 230 | 1370 |
| kG | 6.4 to 7.1 | 6.4 to 7.1 | 2.3 | 1.37 | |
| Coercive Force bHc |
kA/m | 570 to 760 | 410 to 620 | 135 | 102 |
| KOe | 5.7 to 7.6 | 4.1 to 6.2 | 1.7 | 1.28 | |
| Intrinsic Coercive Force iHc |
kA/m | 370 to 470 | 250 to 400 | — | — |
| KOe | 4.7 to 5.9 | 3.1 to 4.9 | |||
| Maximum Energy Product (BH) max |
kJ/m2 | 60 to 96 | 28 to 60 | 8.8 | 4.0 |
| MGOe | 7.5 to 12.0 | 3.5 to 7.5 | 1.1 | 0.5 | |
| Temperature Coefficent Br | %/K | -0.1 to -0.15 | -0.1 to -0.15 | -0.18 to -0.19 | -0.18 |
| Temperature Coefficent iHc | %/K | — | — | 0.35 to 0.5 | 0.35 |
| Curie Point Tc |
K | * 393 | * 393 | * 353 | * 353 |
| °C | * 120 | * 120 | * 80 | * 80 | |
| Recoil Relative Magnetic
Permeability μrec |
— | 1.1 to 1.2 | 1.1 to 1.2 | 1.03 to 1.07 | 1.03 to 1.07 |
| Density | g/cm2 | 5.6 to 6.2 | 4.2 to 5.5 | 3.7 | 3.7 |
| Deflecting Strength | Mpa | 49.0 to 58.8 | — | — | — |
| Kgf/mm2 | 5.0 to 6.0 | ||||
| Compression Strength | MPa | — | — | — | — |
| Kgf/mm2 | |||||
| Tensile Strength | MPa | — | 30000 | 666 | 392 |
| Kgf/mm2 | 3061 | 68 | 40 | ||
| Specific Heat | J/(Kg•K) | — | — | 0.7 to 0.8x103 | 0.7 to 0.8x103 |
| cal/g•°C | 0.167 to 0.191 | 0.167 to 0.191 | |||
| Vickers Hardness | HV | 430 | 430 | 760 | 450 |
| Thermal Expansion Coefficient Lateral |
ppm/K | 13 to 15 | 50 | — | — |
| Thermal Expansion Coefficient Vertical |
ppm/K | 13 to 15 | 50 | 100 to 150 | 100 to 150 |
| JIS | — | REFe63/64p | REFe63/64p | — | — |
| MMPA | — | — | — | — | — |
| Magnetic Field To Be Charged
For Magnetization |
kA/m | 2000 | 2000 | 800 | 800 |
| KOe | 25 | 25 | 10 | 10 | |
| Electric Resistance | nΩ•m | 56•103 | 56•103 | — | — |