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Characteristics of Neodymium magnet
Neodymium magnet is currently the strongest one available, best in magnetic performance
NdFeB magnet have the characteristics of:
Extreme strong Br residual induction
Very high energy product
Excellent demagnetization resistance capacibility
Coating is needed for NdFeB Magnet which is not suitable for high temperature working condition.
High Coercive Force
Very hight energy products
Low corrosion resistance (when uncoated)
Low mechanical strength – Brittle
Strongest magnetic power
Hight coercive force
Brittle & Hard
Good temperature stability
High resistance to demagnetization
Excellent performance and cost ratio
Available Grades of Neo
Many grades of Neodymium exist to support a variety of industrial and commercial applications. The range of Neo grades is typically 33 to 52 MGOe. These ranges allow for balancing cost, magnetic performance, and operational temperature resistance.
Neodymium magnets have poor resistance to corrosion and they can also corrode from the inside out if proper pre-treatment processes are not followed. Oftentimes a multi-layer Nickel-Copper-Nickel plating is applied, but this may not be sufficient for all applications.
Neodymium magnets are very susceptible to elevated operating temperatures and the application requirements should be considered before selecting a particular grade of Neo.