Samarium Cobalt Rare Earth Magnets

Samarium cobalt magnets (also known as SmCo magnets), are extremely powerful permanent magnets. Part of the rare-earth magnet family, SmCo magnets rank similarly in strength to neodymium magnets but have much higher temperature stability and higher coercivity. They can operate at temperatures up to 525°F (300°C). In addition, they have a very high resistance to demagnetization and to corrosion. SmCo magnets are available in numerous shapes, sizes and grades that span a wide range of properties and application requirements. Samarium Cobalt magnets exhibit good corrosion resistance when compared to Neodymium magnets. For most applications, a coating or plating is not required, but it should be considered when operating in environments that are acidic, have high moisture, or are in a vacuum.

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Technical Specification

Product Name	Samarium Cobalt Magnet for Motor
Material	Sm-Co
Grade	YXG-32H
Size of magnet	Customized
Magnetization direction	Diametrically
Coating	No coating or according to request
Certifications	ISO9001, CE, TS16949, ROHS, SGS, ETC

Magnetic Properties of Sintered SmCo Magnet

Himagnet provides two types of SmCo magnets: 1-5 type (SmCo5) and 2-17 type (Sm2Co17) respectively with various grades , for more Specifications of Samarium Cobalt Magnets Page.

Himagnet SmCo Magnet

Physical Properties

Parameters	unit	SmCo5	Sm2Co17
Density	g/cm3	8.1-8.5	8.3-8.5
Curie Temperature	℃	700-750	800-850
Recoil Permeability		1.00-1.05	1.00-1.1
Hardness	Hv	450-500	500-600
Electrical Resistivity	Ω·cm	5-6×10-5	8-9×10-5
Compressive Strength	Mpa	420-680	700-830
Thermal Conductivity	W/m·k		12
Coefficient of Thermal Expansion(C ⊥)	10-6/℃	13	11
Coefficient of Thermal Expansion(C //)	10-6/℃	6	8
Saturation Field	kA/m	＞1600	＞3200

Magnetization Options

For SmCo Motor Magnet , the common type :

Motor Magnet SmCo

For more information about magnetizing options of SmCo Magnets, please check our magnetization direction options page.

Common Applications for Samarium Cobalt Magnets

Samarium cobalt magnets are routinely used in high-performance motors, machinery, pumps, medical devices, magnetic couplings, magnetic separators and other equipment for automotive, aerospace, medical, military and industrial automation industries. We are trusted partners to businesses worldwide in these primary markets.

Samarium-Cobalt-Magnets

Why Choose Us

1. To be certificated by ISO9001, ISO14001, ISO/TS16949 , routing management with standardization ensure our Quality Guarantee.

2. Rich experience with high cost-effective solutions improve market competition.

3. 5000+ customers from all over the world , keep good reputation in magnet’s industry with over 20 years.

4. Customer oriented and value-added service business philosophy

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