SmCo Disc Magnets M2D08, Dimensions: Ø 7 x L (various lengths), Material grade: S240

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SmCo magnets (Samarium Cobalt) have also a very strong magnetic field. They tend to resist... more
SmCo Disc Magnets M2D08, Dimensions: Ø 7 x L (various lengths), Material grade: S240

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 compose of SmCo5/Sm2Co17 produce 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
Coating: none
Dimensions: Ø 7 x 2, Ø 7 x 5, Ø 7 x 10, Ø 7 x 20, Ø 7 x 30
Form: Disc
Magnetization Direction: axial
Material: Sm2Co17
Material Grade: S240
Curie Temperature (°C): 700-800
Maximum Operating Temperature (°C): 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
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