Samarium cobalt magnets

Samarium-cobalt magnets (SmCo), like neodymium magnets, are rare earth magnets. The disc magnets are manufactured in two alloys:

  • SmCo5: 36 % samarium content
  • Sm2Co17: 25 % samarium content and iron up to 18 % and copper up to 12 %

Due to a low, reversible temperature coefficient, the SmCo magnets are very temperature resistant - the maximum operating temperature is 250 ° C (SmCo5) and 350 ° C (Sm2Co17). An energy product of approx. 260 kJ7m³ is also achieved.
The samarium-cobalt magnets are quite resistant to demagnetizing magnetic fields and do not need to be protected against corrosion.

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Samarium-cobalt magnets (SmCo), like neodymium magnets, are rare earth magnets. The disc magnets are manufactured in two alloys: SmCo5: 36 % samarium content Sm2Co17: 25 % samarium... read more »
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Samarium cobalt magnets

Samarium-cobalt magnets (SmCo), like neodymium magnets, are rare earth magnets. The disc magnets are manufactured in two alloys:

  • SmCo5: 36 % samarium content
  • Sm2Co17: 25 % samarium content and iron up to 18 % and copper up to 12 %

Due to a low, reversible temperature coefficient, the SmCo magnets are very temperature resistant - the maximum operating temperature is 250 ° C (SmCo5) and 350 ° C (Sm2Co17). An energy product of approx. 260 kJ7m³ is also achieved.
The samarium-cobalt magnets are quite resistant to demagnetizing magnetic fields and do not need to be protected against corrosion.


What are the disadvantages of samarium cobalt magnets?

The only disadvantage that Sm2Co17 magnets have compared to neodymium magnets is the higher price. One of the reasons for this is that both samarium and cobalt are only available to a limited extent. In addition, the manufacturing process is extremely complex - the magnets are correspondingly expensive. When you buy a SmCo magnet, you should therefore know exactly what you need it for.

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SmCo Discmagnet Ø 5.0 x 3.0 mm S280 nickel - holds 600 g
SmCo Discmagnet Ø 5.0 x 3.0 mm S280 nickel - holds 600 g
  • from 10 pcs €0.58*
  • from 40 pcs €0.52*
  • from 80 pcs €0.46*
  • from 160 pcs €0.41*
  • from 1000 pcs request a quote!
Item number: SM-05x03-SC-N
Available on stock: 740 pieces (PU = 10 pieces)

Ready for shipment, delivery in 2-4 days
from €0.58 *
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SmCo Discmagnet Ø 8.0 x 5.0 mm S280 nickel - holds 1.3 kg
SmCo Discmagnet Ø 8.0 x 5.0 mm S280 nickel - holds 1.3 kg
  • from 5 pcs €0.88*
  • from 15 pcs €0.79*
  • from 40 pcs €0.70*
  • from 80 pcs €0.62*
  • from 800 pcs request a quote!
Item number: SM-08x05-SC-N
Available on stock: 11935 pieces (PU = 5 pieces)

Ready for shipment, delivery in 2-4 days
from €0.88 *
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SmCo Discmagnet Ø 8.0 x 5.0 mm S280 uncoated - 1.3 kg
SmCo Discmagnet Ø 8.0 x 5.0 mm S280 uncoated - 1.3 kg
  • from 5 pcs €0.79*
  • from 15 pcs €0.71*
  • from 40 pcs €0.63*
  • from 80 pcs €0.55*
  • from 800 pcs request a quote!
Item number: SM-08x05-SC
Available on stock: 2140 pieces (PU = 5 pieces)

Ready for shipment, delivery in 2-4 days
from €0.79 *
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SmCo Discmagnet Ø 8.0 x 8.0 mm S280 nickel - holds 1.6 kg
SmCo Discmagnet Ø 8.0 x 8.0 mm S280 nickel - holds 1.6 kg
  • from 5 pcs €1.15*
  • from 15 pcs €1.04*
  • from 40 pcs €0.92*
  • from 80 pcs €0.81*
  • from 800 pcs request a quote!
Item number: SM-08x08-SC-N
Available on stock: 3930 pieces (PU = 5 pieces)

Ready for shipment, delivery in 2-4 days
from €1.15 *
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SmCo Discmagnet Ø 10.0 x 1.0 mm S280 nickel - holds 450 g
SmCo Discmagnet Ø 10.0 x 1.0 mm S280 nickel - holds 450 g
  • from 10 pcs €0.69*
  • from 40 pcs €0.62*
  • from 80 pcs €0.55*
  • from 160 pcs €0.48*
  • from 800 pcs request a quote!
Item number: SM-10x01-SC-N
Available on stock: 4040 pieces (PU = 5 pieces)

Ready for shipment, delivery in 2-4 days
from €0.69 *
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SmCo Discmagnet Ø 10.0 x 5.0 mm S280 nickel - holds 2 kg
SmCo Discmagnet Ø 10.0 x 5.0 mm S280 nickel - holds 2 kg
  • from 5 pcs €1.38*
  • from 15 pcs €1.24*
  • from 40 pcs €1.10*
  • from 80 pcs €0.97*
  • from 800 pcs request a quote!
Item number: SM-10x05-SC-N
Available on stock: 1390 pieces (PU = 5 pieces)

Ready for shipment, delivery in 2-4 days
from €1.38 *
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SmCo Discmagnet Ø 10.0 x 10.0 mm S280 nickel - holds 2.8 kg
SmCo Discmagnet Ø 10.0 x 10.0 mm S280 nickel - holds 2.8 kg
  • To 2 pcs €1.98*
  • from 3 pcs €1.98*
  • from 10 pcs €1.78*
  • from 20 pcs €1.58*
  • from 40 pcs €1.39*
  • from 500 pcs request a quote!
Item number: SM-10x10-SC-N
Available on stock: 5338 pieces

Ready for shipment, delivery in 2-4 days
from €1.98 *
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SmCo Discmagnet Ø 12.0 x 2.0 mm S280 nickel - holds 1.2 kg
SmCo Discmagnet Ø 12.0 x 2.0 mm S280 nickel - holds 1.2 kg
  • from 5 pcs €1.08*
  • from 15 pcs €0.97*
  • from 40 pcs €0.86*
  • from 80 pcs €0.76*
  • from 800 pcs request a quote!
Item number: SM-12x02-SC-N
Available on stock: 990 pieces (PU = 5 pieces)

Ready for shipment, delivery in 2-4 days
from €1.08 *
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SmCo Discmagnet Ø 15.0 x 3.0 mm S280 nickel - holds 2.1 kg
SmCo Discmagnet Ø 15.0 x 3.0 mm S280 nickel - holds 2.1 kg
  • To 2 pcs €1.78*
  • from 3 pcs €1.60*
  • from 10 pcs €1.51*
  • from 20 pcs €1.42*
  • from 40 pcs €1.25*
  • from 500 pcs request a quote!
Item number: SM-15x03-SC-N
Available on stock: 1795 pieces

Ready for shipment, delivery in 2-4 days
from €1.78 *
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SmCo Discmagnet Ø  20.0 x 5.0 mm S280 nickel - holds 4.3 kg
SmCo Discmagnet Ø 20.0 x 5.0 mm S280 nickel - holds 4.3 kg
  • To 2 pcs €3.85*
  • from 3 pcs €3.39*
  • from 10 pcs €3.08*
  • from 20 pcs €2.77*
  • from 40 pcs €2.58*
  • from 400 pcs request a quote!
Item number: SM-20x05-SC-N
Available on stock: 179 pieces

Ready for shipment, delivery in 2-4 days
from €3.85 *
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SmCo Discmagnet Ø  25.0 x 5.0 mm S280 nickel - holds 5.4 kg
SmCo Discmagnet Ø 25.0 x 5.0 mm S280 nickel - holds 5.4 kg
  • To 2 pcs €5.15*
  • from 3 pcs €4.53*
  • from 10 pcs €4.12*
  • from 20 pcs €3.71*
  • from 40 pcs €3.45*
  • from 300 pcs request a quote!
Item number: SM-25x05-SC-N
Available on stock: 1322 pieces

Ready for shipment, delivery in 2-4 days
from €5.15 *
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Discmagnet Ø 8.0 x 5.0 mm SmCo RCS26H uncoated - 1.3 kg
Discmagnet Ø 8.0 x 5.0 mm SmCo RCS26H uncoated - 1.3 kg
  • from 25 pcs €0.29*
  • from 150 pcs €0.26*
  • from 300 pcs €0.22*
  • from 1000 pcs request a quote!
Product sale Item number: SP-230
Available on stock: 6475 pieces (PU = 25 pieces)

Ready for shipment, delivery in 2-4 days
from €0.29 *
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Discmagnet Ø 28.0 x 6.0 mm SmCo RCS26H uncoated
Discmagnet Ø 28.0 x 6.0 mm SmCo RCS26H uncoated
  • To 4 pcs €2.80*
  • from 5 pcs €2.58*
  • from 15 pcs €2.38*
  • from 60 pcs €2.18*
  • from 600 pcs request a quote!
Product sale Item number: SP-241
Available on stock: 549 pieces

Ready for shipment, delivery in 2-4 days
from €2.80 *
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What are the disadvantages of samarium cobalt magnets?

The only disadvantage that Sm2Co17 magnets have compared to neodymium magnets is the higher price. One of the reasons for this is that both samarium and cobalt are only available to a limited extent. In addition, the manufacturing process is extremely complex - the magnets are correspondingly expensive. When you buy a SmCo magnet, you should therefore know exactly what you need it for.