SmCo magnets
Samarium Cobalt holds its standard property in higher maximum temperatures than neodymium, although its maximum strength is less. The cost of SmCo material is the most expensive, so SmCo is recommended only when its performance is a high-temperature environment is a concern.

Characteristics & Application of SmCo Permanent Magnet:
SmCo permanent magnet has high magnetic energy product and high coercive force. Its properties are better than Alnico, ferrite permanent magnet. Its max. energy product is up to 239kJ/m3 (30MGOe), which is three times of that of Alnico8 permanent magnet, eight times of that of ferrite permanent magnet (Y40). So the permanent magnetic component made from SmCo material is small, light and stable in property. It is widely applied to electro acoustic& telecommunication apparatus, electric motors, measure meters, peg-top, electronic watch, microwave apparatus, magnetic mechanism, sensor and other static or dynamic magnetic routes.
 
The curie temp. of the SmCo permanent magnet is high and its temperature coefficient is low. So it is suitable for use at 300, high temp.
 
SmCo permanent magnet is hear and bristle. Its rigidity strength, tensile strength and press strength are low. So it is not suitable for framework. The main ingredient of SmCo permanent magnet is metal cobalt (Co≥Y99.95%). So its price is high.