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SmCo Magnets
SmCo Material Grade
Demagnetization Curves
Surface Treatments/Dimension & Tolerance
Pricing of Sintered SmCo Magnets
Data Sheet of SmCo Magnets (PDF)
SmCo Block Magnets (PDF)
SmCo Disc/Cylinder Magnets (PDF)
SmCo Ring Magnets (PDF)
Customer Specific SmCo Magnets
Magnetization Direction of SmCo Magnets
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Other Magnetic Materials
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SmCo Magnets (Samarium-Cobalt Magnets)
 



SmCo magnets (Samarium Cobalt) are also part of the rare earth family. The compound of Samarium Cobalt was discovered in 1966 by Dr. Karl J. Strnat. They were once the most powerful permanent magnet, but NdFeB magnets have surpassed them.

Samarium cobalt is a powdered metal which is compacted when it is near a magnetic field and then sintered. Sintered means that when a compacted powder magnet is exposed to heat treat operation, the full density and magnetic orientation can be attained.

SmCo magnets have also a very strong magnetic field. They tend to resist demagnetization extremely well. Unlike Neodymium magnets, it is also very corrosion resistant. SmCo magnets can operate at higher temperatures up to 300C and are widely used in applications in which higher operating temperature and higher corrosion and oxidation resistance are crucial. The temperature coefficient of remanence is usually less than ±0.05%.

Two common compositions of SmCo magnets are SmCo
5 and Sm 2Co17. They can be sintered and bonded. Generally, the cost of SmCo magnets is higher than NdFeB magnets. But NdFeB magnets are stronger than SmCo magnets.


Production Flow Diagram of SmCo Magnets
Product Information on SmCo Magnets
Further Information on Permanent Magnets




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