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Sintered SmCo - Samarium Cobalt

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Samarium Cobalt magnets are produced in sintered as well as bonded forms. Sintered Samarium Cobalt magnets have an energy product ranging from 18 to 30 MGOe. These alloys have the highest energy products at high temperatures, very high curie temperatures, and low temperature coefficients of induction and coercivity. The content of Cobalt in these alloys is greater than 70% making this family of permanent magnets one of the more expensive.

Need more information about magnetic materials and how magnets are designated jump over and read our blog article - Understanding Magnet Grades & Magnet Tables.  

Please refer to the below table for sintered SmCo materials specs:

To view the demag curves click the grades in the chart.

Download sintered SmCo Materials Chart - click here

Item Grade Remanence Coercivity Max Energy Product Max Working Temperature
Br HcB HcJ (BH)max TwMax
T kGs kA/m kOe kA/m kOe kJ/m³ MGOe ° C

Sm1Co5
Sm1Co5-20
0.89-0.93
8.9-9.3
684-732
8.6-9.2
≥1830
≥23
151-167
19-21
≤250

Sm1Co5-22
0.92-0.96
9.2-9.6
710-756
8.9-9.5
≥1830
≥23
159-175
20-22
≤250

Sm1Co5-24
0.96-1.00
9.6-10.0
740-788
9.3-9.9
≥1830
≥23
175-191
22-24
≤250

Sm2Co17
Sm2Co17-30L
1.08-1.10
10.8-11.0
541-796
6.8-10.0
636-955
8-12
223-239
28-30
≤250

Sm2Co17-32L
1.10-1.15
11.0-11.5
541-812
6.8-10.2
636-955
8-12
231-255
29-32
≤250

Sm2Co17-30M
1.08-1.10
10.8-11.0
676-835
8.5-10.5
955-1433
12-18
223-239
28-30
≤300

Sm2Co17-32M
1.10-1.15
11.0-11.5
676-852
8.5-10.7
955-1433
12-18
231-255
29-32
≤300

Sm2Co17-28
1.03-1.08
10.3-10.8
756-812
9.5-10.2
≥1433
≥18
207-223
26-28
≤300

Sm2Co17-30
1.08-1.10
10.8-11.0
788-835
9.9-10.5
≥1433
≥18
223-239
28-30
≤300

Sm2Co17-32
1.10-1.15
11.0-11.5
812-860
10.2-10.8
≥1433
≥18
231-255
29-32
≤300

Sm2Co17-28H
1.03-1.08
10.3-10.8
756-812
9.5-10.2
≥1990
≥25
207-223
26-28
≤350

Sm2Co17-30H
1.08-1.10
10.8-11.0
788-835
9.9-10.5
≥1990
≥25
223-239
28-30
≤350

Sm2Co17-32H
1.10-1.15
11.0-11.5
812-860
10.2-10.8
≥1990
≥25
231-255
29-32
≤350
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