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Samarium-Cobalt magnets (SmCo)

Short description

Samarium-Cobalt (SmCo) magnets have excellent magnetic characteristics, a low temperature coëfficiënt and high stability.

Characteristics

  • Energy product 18 - 30 MGOe
  • Low temperature coëfficiënt
  • High stability
  • High corrosion-resistance
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Samarium-Cobalt magnets (SmCo)

Detailed product description

SmCo magnets pertain, just like Neodymium-Ferro-Boron (Neoflux®) magnets, to the rare earth magnets. Samarium-Cobalt magnets have excellent magnetic characteristics with a maximum energy product of 18 to 30 MGOe, a low temperature coefficient and a high stability. Moreover they are very resistant to oxidation and require no coating under normal circumstances.

Samarium-Cobalt magnets are the best choice, especially for applications where durability is of great importance. For example within advanced electronic products, medical equipment and the automotive industry.
The maximum usage temperature is approx. 300˚C.

Samarium Cobalt permanent magnets - table

Grade Remanence Normal
coercivity
Intrinsic
coercivity
Max.
Energy product
Max.
operating
Temp.
 

Br
mT

Hcb
kA/m
Hcj
kA/m
BH(max)
kJ/m3
 
  min typ min typ min min typ °C
SmCo5                
GSS-20 850  950 637  756  1194  151  175  250 
GSS-22 890 1000 661  772  1194  167  191  250 
Sm2Co17                
GSS-24 920  1040  661  796  1194  175  199  350 
GSS-26 1000  1060  677  820  1194  191  215  350 
GSS-28 1040  1100  677  820  1194  207  231  350 
GSS-30 1070  1120  700  828  1194  223  247  350