|
Physical Properties of Sintered
Alnico Magnets |
| Curie Point |
850~890°C |
Hardness |
HRC 45~60 |
| Max. Permissible Temp. |
550°C |
Thermal Expansion Coefficient |
11~13.5 X 1O-6/°C |
| Specific Resistivity |
50~75µW-cm |
Temperature Coefficient |
~0.016%/°C |
| Density |
~7.3g/cm³ |
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Standard Rating Characteristics of Sintered Alnico Magnets |
Techno
Mag
Code |
Residual flux density |
Coercive force |
Maximum
energy product |
|
Br |
Hc |
(BH)
Max. |
|
KG |
T |
Oe |
KA/m |
MG · Oe |
KJ/m³ |
|
TM-2 |
6.4-7.4 |
0.64~0.74 |
490~ 600 |
39~ 47 |
1.2~1.6 |
9.5~12.7 |
|
TM-5 |
10-1.5 |
1.00~1.15 |
580~ 630 |
46~ 50 |
3.2~4.5 |
25.5~35.8 |
|
TM-6 |
7.7-8.7 |
0.77~0.87 |
650~ 760 |
51~ 60 |
2.3~3.5 |
18.3~27.8 |
|
TM-8 |
5.5-6.4 |
0.55~0.64 |
1,100~ 1,200 |
87~ 95 |
2.0~2.7 |
15.9~21.5 |
|
TM-8H |
8.3-9.0 |
0.83~0.90 |
1,450~ 1,600 |
115~ 127 |
4.5~5.5 |
35.8~63.3 |
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