| CASTING |
| Item | Unit | Alnico-5 | Alnico-8 | Alnico Sinter |
| Compositon | — | 8Al-14Ni-24Co-3Cu-othersFe | 7Al-15Ni-34Co-4Cu-othersFe | 8Al-14Ni-24Co-3Cu-othersFe |
| Molding Process | — | Casting | Casting | Wet Powder in Magnetic Field |
| Residual Flux Density Br |
mT | 1250 to1300 | 830 to 900 | 1150 |
| kG | 12.5 to 13 | 8.3 to 9.0 | 11.5 | |
| Coercive Force bHc |
kA/m | 47.7 to 52.5 | 110 to 123 | 50 |
| KOe | 0.60 to 0.66 | 1.38 to 1.55 | 0.65 | |
| Intrinsic
Coercive Force iHc |
kA/m | — | — | — |
| KOe | ||||
| Maximum Energy Product (BH) max |
kJ/m2 | 38.2 to 43.8 | 38.2 to 43.0 | 37 |
| MGOe | 4.8 to 5.5 | 4.8 to 5.4 | 4.6 | |
| Temperature Coefficent Br | %/K | -0.02 | -0.02 | -0.02 |
| Temperature Coefficent iHc | %/K | — | — | |
| Curie Point Tc |
K | 1123 | 1123 | 1123 |
| °C | 850 | 850 | 850 | |
| Recoil Relative Magnetic Permeability μrec |
— | 3.6 | 3.6 | 3.6 |
| Density | g/cm2 | 7.3 | 7.3 | 7.1 |
| Deflecting Strength | Mpa | 73.5 | 73.5 | 73.5 |
| Kgf/mm2 | 7.5 | 7.5 | 7.5 | |
| Compression Strength | Mpa | — | — | — |
| Kgf/mm2 | ||||
| Tensile Strength | Mpa | 37.2 | 37.2 | 37.3 |
| Kgf/mm2 | 3.8 | 3.8 | 3.8 | |
| Specific Heat | J/ (Kg•K) | — | — | — |
| cal/g•°C | ||||
| Vickers Hardness | HV | 650 | 650 | 650 |
| Thermal Expansion Coefficient Lateral |
ppm/K | 11 | 11 | 11 |
| Thermal Expansion Coefficient Vertical |
ppm/K | 11 | 11 | 11 |
| JIS | — | AlNiCo37/5 | AlNiCo38/11 | AlNiCo S-34/5 |
| MMPA | — | AlNiCO-5 | AlNiCO-8 | — |
| Magnetic Field To Be Charged
For Magnetization |
kA/m | 240 | 640 | 240 |
| KOe | 3.0 | 8.0 | 3.0 | |
| Electric Resistance | nΩ•m | 4.7x102 | 4.7x102 | 47x102 |