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Alnico Magnetic Materials Properties Data
| Alnico - Magnetic Properties |
| Grade |
Type |
Br (kGauss) |
Hc (kOersteds) |
Hci (kOersteds) |
BHmax (MGOe) |
Temperature Coefficient Br (%/°C) |
Maximum Operating Temp |
| (°C) |
(°F) |
| 5 C |
Cast |
12,500 |
640 |
640 |
5.5 |
-0.013 |
540 |
~ 1000 |
| 5 S |
Sintered |
10,800 |
600 |
600 |
3.8 |
-0.007 |
540 |
~ 1000 |
| 8 C |
Cast |
8,300 |
1,650 |
1,650 |
5.5 |
-0.013 |
540 |
~ 1000 |
| 8 S |
Sintered |
7,000 |
1,900 |
1,900 |
5.0 |
-0.013 |
540 |
~ 1000 |
| Alnico - Physical Properties |
| Grade |
Type* |
Density (kg/m3) |
Bending Strength |
Compressive Strength |
Electrical Resistivity (Ωm) |
Coeff. Of Thermal Exp. |
Curie Temperature |
| (kg/m3) |
(lbs/in3) |
(kg/m2) |
(lbs/in2) |
(kg/m2) |
(lbs/in2) |
(°C) |
(°F) |
| ALL |
Cast |
7.3 x 103 |
0.265 |
|
|
|
|
4.7 x 10-3 |
11.4 x 10-6 |
860 |
1580 |
| ALL |
Sintered |
7.0 x 103 |
0.255 |
|
|
|
|
4.7 x 10-3 |
11.4 x 10-6 |
860 |
1580 |
