Samarium Cobalt Magnet High Temperature Rare Earth Magnets

The main raw materials of SmCo permanent magnets are samarium and cobalt rare earth elements. SmCo magnet is the alloy magnet which produced through Power Metallurgy technology that is made into a blank by Melting, Milling, Compression Molding, Sintering, and Precision Machining.

Products Details

The main raw materials of SmCo permanent magnets are samarium and cobalt rare earth elements. SmCo magnet is the alloy magnet which produced through Power Metallurgy technology that is made into a blank by Melting, Milling, Compression Molding, Sintering, and Precision Machining. SmCo Magnet as the second generation of rare earth permanent magnets, not only has high BH (14-32Mgoe) and reliable Hcj, but also shows good temperature characteristics in rare earth permanent magnets. SmCo Magnet is only the permanent magnets with high BH max, high Hcj and high Br. Meanwhile, it has a very low temperature coefficient (-0.030%/°C) and can be used at both high and low temperatures. The maximum operating temperature is 350°C, and the negative temperature is about minus 200°C. SmCo Magnet has a strong corrosion resistance and oxidation resistance. It can be normally used at room temperature or high temperature without coating. If the product is used in severe acid corrosive wet environment, we can provide a variety of coating to meet customer’s requirements. Our SmCo permanent magnet is widely used in motors, instruments, sensors, detectors, various magnetic transmissions and other high-tech fields.

Grade

Br

Hcb

Hcj

(BH)max

Tc

Tw

α(Br)

α(HcJ)

Typical Value

Min Value

Min Value

Min Value

Typical Value

Min Value

Max Value

Typical Value

Typical Value

[T]

[T]

[kA/m]

[kA/m]

[kJ/m3]

[℃]

[℃]

[%/℃]

[%/℃]

[KGs]

[KGs]

[KOe]

[KOe]

[MGOe]

SmCo24H

0.99

0.96

692

1990

183

175

820

350

-0.03

-0.2

9.9

9.6

8.7

25

23

22

SmCo24

0.99

0.96

692

1433

183

175

820

300

-0.03

-0.2

9.9

9.6

8.7

18

23

22

SmCo26H

1.04

1.02

750

1990

199

191

820

350

-0.03

-0.2

10.4

10.2

9.4

25

25

24

SmCo26

1.04

1.02

750

1433

199

191

820

300

-0.03

-0.2

10.4

10.2

9.4

18

25

24

SmCo26M

1.04

1.02

676

796-1273

199

191

820

300

-0.03

-0.2

10.4

10.2

8.5

10-16

25

24

SmCo26L

1.04

1.02

413

438-796

199

191

820

250

-0.03

-0.2

10.4

10.2

5.2

5.5-10

25

24

SmCo28H

1.07

1.04

756

1990

215

207

820

350

-0.03

-0.2

10.7

10.4

9.5

25

27

26

SmCo28

1.07

1.04

756

1433

215

207

820

300

-0.03

-0.2

10.7

10.4

9.5

18

27

26

SmCo28M

1.07

1.04

676

796-1273

215

207

820

300

-0.03

-0.2

10.7

10.4

8.5

10-16

27

26

SmCo28L

1.07

1.04

413

438-796

215

207

820

250

-0.03

-0.2

10.7

10.4

5.2

5.5-10

27

26

SmCo30H

1.1

1.08

788

1990

239

222

820

350

-0.03

-0.2

11.0

10.8

9.9

25

30

28

SmCo30

1.1

1.08

788

1433

239

222

820

300

-0.03

-0.2

11.0

10.8

9.9

18

30

28

SmCo30M

1.1

1.08

676

796-1273

239

222

820

300

-0.03

-0.2

11.0

10.8

8.5

10-16

30

28

SmCo30L

1.1

1.08

413

438-796

239

222

820

250

-0.03

-0.2

11.0

10.8

5.2

5.5-10

30

28

SmCo32

1.12

1.1

796

1433

255

230

820

300

-0.03

-0.2

11.2

11.0

10

18

32

29

SmCo32M

1.12

1.1

676

796-1273

255

230

820

300

-0.03

-0.2

11.2

11.0

8.5

10-16

32

29

SmCo32L

1.12

1.1

413

438-796

255

230

820

250

-0.03

-0.2

11.2

11.0

5.2

5.5-10

32

29

Grade

Br

Hcb

Hcj

(BH)max

Tc

Tw

α(Br)

α(HcJ)

Typical Value

Min Value

Min Value

Min Value

Typical Value

Min Value

Max Value

Typical Value

Typical Value

T

(KGs)

T

(KGs)

kA/m(KOe)

kA/m(KOe)

kJ/m3

(MGOe)

[℃]

[℃]

[%/℃]

[%/℃]

SmCo16

0.83

0.81

620

1274

127

119

750

250

-0.04

-0.3

8.3

8.1

7.8

16

16

15

SmCo18

0.87

0.84

645

1274

143

135

750

250

-0.04

-0.3

8.7

8.4

8.1

16

18

17

SmCo20

0.92

0.89

680

1274

159

151

750

250

-0.04

-0.3

9.2

8.9

8.5

16

20

19

SmCo22

0.95

0.93

710

1274

167

159

750

250

-0.04

-0.3

9.5

9.3

8.9

16

21

20

SmCo24

0.98

0.96

730

1194

183

175

750

250

-0.04

-0.3

9.8

9.6

9.2

15

23

22

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