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Quality SmCo Magnets


Samarium Cobalt magnets (also known as SmCo magnets) are another type of permanent magnet. A big advantage of SmCo magnets is that they can operate at temperatures up to 300 degrees Centigrade. SmCo magnets are widely used in applications in which high operating temperature and high corrosion and oxidation resistance are crucial.

Magnetic Properties of SmCo

Grade

Max. Energy Product

Remanence

Coercive Force

Rev. Temp. Coeff.

 

(BH)max

Br

Hc

Hci

Bd

Hd

 

MGOe

kJ/m3

kG

mT

kOe

kA/m

kOe

kA/m

%/°C

%/°C

SmCo5 16A

16.0

130.0

8.2

820

7.5

600

>16.0

>1270

-0.05

0.25

SmCo5 16B

16.0

130.0

8.2

820

7.5

600

>20.0

>1590

-0.05

0.25

SmCo5 18A

18.0

146.3

8.7

870

8.2

656

>16.0

>1272

-0.05

0.25

SmCo5 18B

18.0

146.3

8.7

870

8.2

656

>20.0

>1590

-0.05

0.25

SmCo5 20A

20.0

162.5

9.0

900

8.6

690

>16.0

>1272

-0.05

0.25

SmCo5 20B

20.0

162.5

9.0

900

8.6

690

>20.0

>1590

-0.05

0.25

SmCo5 22A

22.0

178.8

9.5

950

9.1

728

>16.0

>1272

-0.05

0.25

SmCo5 22B

22.0

178.8

9.5

950

9.1

728

>20.0

>1590

-0.05

0.25

Sm2Co17 24

24.0

195.0

10.0

1000

9.5

760

>20.0

>1590

-0.03

0.23

Sm2Co1726A

26.0

211.3

10.6

1060

9.8

784

>16.0

>1272

-0.03

0.23

Sm2Co1726B

26.0

211.3

10.6

1060

9.8

784

>20.0

>1590

-0.03

0.23

Sm2Co1726H

26.0

211.3

10.6

1060

9.8

784

>26.0

>2067

-0.03

0.23

Sm2Co1728A

28.0

227.5

10.9

1090

10.0

800

>16.0

>1272

-0.03

0.23

Sm2Co1728B

28.0

227.5

10.9

1090

10.0

800

>20.0

>1590

-0.03

0.23

Sm2Co1728H

28.0

227.5

10.9

1090

10.0

800

>26.0

>2067

-0.03

0.23

Sm2Co1730A

30.0

243.8

11.0

1100

10.2

816

>16.0

>1272

-0.03

0.23

Sm2Co1730B

30.0

243.8

11.2

1120

10.2

816

>20.0

>1590

-0.03

0.23

Sm2Co17 32

31.0

251.8

11.5

1150

10.0

800

>15.0

>1192

-0.03

0.23

Sm2Co1725H

25.0

203.2

10.5

1050

9.7

776

>35.0

>2782

-0.03

0.23


Physical 
Characteristics


SmCo5

Sm2Co17

Temperature Coefficient of Br (%/°C)

-0.05

-0.03

Temperature Coefficient of iHc (%/°C)

-0.3

-0.2

Curie Temperature (°C)

700-750

800-850

Density (g/cm3)

8.2-8.4

8.3-8.5

Vickers Hardness (HV)

450-500

500-600

Working Temperature (°CC)

250

350