General Property Comparison of magnetic materials
Magnet Material
Cost
Max. Magnetic Energy
Max Working Temperature
Corrosion Resistance
Magnetic Properties
Alnico
Moderate
9.0 MGOe
550°C
Fair
Medium
Ceramic
Very Low
3.5 MGOe
350°C
Excellent
Low
Bonded Ferrite
Moderate
2.1 MGOe
150°C
Excellent
Low
SmCo5
Very High
22 MGOe
250°C
Excellent
High
Sm2Co17
Very High
32 MGOe
375°C
Excellent
High
Sintered NdFeB
Moderate High
50 MGOe
200°C
Poor
Very High
Bonded NdFeB
High
12 MGOe
150°C
Poor
Medium
Low Energy Flexible
Low
0.7 MGOe
85°C
Good
Very Low
High Energy Flexible
Moderate Low
1.6 MGOe
85°C
Good
Low