SmCo Magnets

① Characteristics

      
       
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 Sm1Co5 and Sm2Co17 and are referred to as 1:5 and 2:17 materials. Samarium cobalt typically offers high energy products with excellent coercive (resistance to demag) forces. This makes samarium an excellent choice for small, compact designs where high temperature environments may be present.

 

         

 

Magnetic Properties of SmCo

 

Model

Br

Hcj

Hcb

(BH)max

 

mT

KGs

KA/m3

KOe

KA/m3

KOe

KJ/m3

MGOe

OM16

750-880

7.5-8.8

>1989

>25

597+/-40

7.5+/-0.5

127+/-16

16+/-2

OM18

800-930

8.0-9.3

>1432

>18

637+/-40

8+/-0.5

143+/-16

18+/-2

OM20

850-980

8.5-9.8

>1273

>16

637+/-40

8+/-0.5

159+/-16

20+/-2

OMT18

900-1030

9.0-10.3

>1194

>15

637+/-40

8+/-0.5

143+/-16

18+/-2

OM22A

900-1030

9.0-10.3

>1989

>25

653+/-40

8.2+/-0.5

175+/-16

22+/-2

OM22B

900-1030

9.0-10.3

>1432

>18

635+/-40

8.2+/-0.5

175+/-16

22+/-2

OM24

980-1080

9.8-10.8

>1432

>18

676+/-40

8.5+/-0.5

191+/-16

24+/-2

OM26A

1000-1130

10.0-11.3

>1194

>15

716+/-40

9.0+/-0.5

207+/-16

26+/-2

OM26B

1000-1130

10.0-11.3

>796

>10

716+/-40

9.0+/-0.5

207+/-16

26+/-2

OM28

1030-1130

10.3-11.3

>1432

>18

756+/-40

9.5+/-0.5

223+/-16

28+/-2

OM27

1000-1100

10.0-11.0

413-556

5.2-7.0

357-516

4.5-6.5

183-223

26+/-2

OM30

1100-1200

11.0-12.0

454-597

5.7-7.5

438-517

5.5-6.5

239+/-16

30+/-2

 

 

② Description