CHENYANG Customer specific SmCo Magnets

Once you have the magnet specification you'd like to use, please contact us. Our engineers... more

Customer specific SmCo Magnets

Once you have the magnet specification you'd like to use, please contact us. Our engineers will design optimal magnets to satisfy your specific needs.

General Information

SmCo magnets (Samarium Cobalt) 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 300°C 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 SmCo5 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.

Material Information

An alloy composed of SmCo5/Sm2Co17 produced by powder metallurgical method
Extremely hard & brittle
High demagnetization resistance
Excellent anti-corrosion properties
More expensive than NdFeB magnets because of limited raw material supply
Outstanding thermal stability

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Coating:	none, Nickel, Zinc, Nickel + Nickel, Nickel + Tin, Nickel + Copper + Nickel, Gold, Epoxy, Nickel + Epoxy
Form:	Customer Specific
Material:	SmCo5, Sm2Co17
Material Grade:	S16, S18, S20, S22, S24, S220, S240, S260, S280, S300, S320
Curie Temperature (°C):	700-800
Maximum Operating Temperature (°C):	250, 350
Resistivity (µ ohm.cm):	50-90
Hardness (Hv):	450-600
Density (g/cm3 ):	8.0-8.5
Relative Recoil Permeability (µrec) :	1.10
Saturation Field Strength, kOe (kA/m) :	37.5 (3000)
Temperature Coefficient of Br (%/°C):	-0.05 ~ -0.03
Temperature Coefficient of iHc (%/°C) :	-0.25 ~ -0.19