NdFeB

SmCo

Alnico

Ferrite or Ceramic

Rubber Magnets

The Magnetic Component

SmCo

   
   

Samarium Cobalt (SmCo) magnets offer designers a tremendous combination of extremely high magnetic properties, outstanding thermal stability and excellent corrosion resistance. As part of the rare earth group of permanent magnets, Samarium Cobalt (SmCo) magnets typically fall into two families of materials. They include rare earth SmCo5 and Sm2Co17, and are commonly referred to as 1:5 and 2:17 materials.

Samarium Cobalt magnets are highly resistant to corrosion and require no special surface treatment. This makes Samarium Cobalt an excellent choice for compact designs where high temperature environments may be present.

SmCo5

 Grade Type

Residual Induction
Br
Coercive Force
Hcb
Intrinsic Coercive Force
Hcj
Max Energy
Product
(BH)max
Max
Working
Temp
Rev
Temp
Coeff
Density
KG T KOe KA/m KOe
(min)
KA/m
(min)
KGOe
(min)
KJ/m3
(min)
Br% g/cm3
XG 18/18 8.60.3 0.860.03 8.30.3 66424 17 1360 17 136 250 -0.045 8.3
18/20 19 1520
18/25 25 2000
XG 20/18 9.00.3 0.900.03 8.60.3 68824 17 1360 19 152 250 -0.045 8.3
20/20 19 1520
20/25 25 2000
XG 22/15 9.50.3 0.950.03 9.00.4 72032 14 1120 21 168 250 -0.045 8.3
22/18 16 1280
22/20 19 1520
XG 24/15 10.00.3 1.000.03 9.50.4 76032 13 1040 23 184 250 -0.045 8.3
24/18 15 1200

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