General introduction of sintered SmCo magnets (samarium-cobalt)

Sintered SmCo magnets can be made in kinds of magnetic rings, magnetic tiles, block magnets, magnetic cylinder, rare earth magnets, disc magnets, strong magnets, powerful magnets or permanent magnets.

The biggest advantage of sintered SmCo magnets is its high working temperature up to 350°C. In general a magnetizing field of approximately 30 to 45 KOe is required. SmCo magnets are widely used in motors, meters, transducers, instruments, positional detector, generators, wind power generators, radar and other applications.

We know the professional manufacturers and suppliers of sintered SmCo magnets in China.

 

What shapes can be formed with sintered SmCo magnets?

example SmCo Magnets   example SmCo Magnets
 
example SmCo Magnets   example SmCo Magnets

 

Magnetic properties of SmCo5 (sintered SmCo magnet):

Material

Grade

Remanence

Coercive
Force

Intrinsic
Coercive
Force

Max.
energy
product

Curie
Temp.

Max.
Operating
Temp.

Temp.
Coefficient
of Br

Temp.
Coefficient
of Hc

Br

Hcb

Hcj

(BH)max

Tc

Tw

 

 

T

KGs

KA/m

KOe

KA/m

KOe

KJ/m 3

MGoe

°C

°C

%°C

%°C

SmCo5
(Smpr)co5

 

 

 

 

YX-
16

0.81-
0.85

8.1-
8.5

620-
660

7.8-
8.3

1194-
1830

15-
23

110-
127

14-
16

750

250

-0.05

-0.3

YX-
18

0.85-
0.9

8.5-
9.0

660-
700

8.3-
8.8

1194-
1830

15-
23

127-
143

16-
18

750

250

-0.05

-0.3

YX-
20

0.9-
0.94

9.0-
9.4

680-
725

8.5-
9.1

1194-
1830

15-
23

150-
167

19-
21

750

250

-0.05

-0.3

YX-
22

0.92-
0.96

9.2-
9.6

710-
750

8.9-
9.4

1194-
1830

15-
23

160-
175

20-
22

750

250

-0.05

-0.3

YX-
24

0.96-
1.0

9.6-
10.0

730-
770

9.2-
9.7

1194-
1830

15-
23

175-
190

22-
24

750

250

-0.05

-0.3

SmCo5

YX-
20s

0.9-
0.94

9.0-
9.4

680-
725

8.5-
9.1

1433-
1830

18-
23

143-
160

18-
20

750

250

-0.05

-0.3

YX-
22s

0.92-
0.96

9.2-
9.6

710-
750

8.9-
9.4

1433-
1830

18-
23

160-
175

20-
22

750

250

-0.05

-0.3

Low
temperature coefficient
SmCo5 (SmGd)Co5

LTc
(YX-
10)

0.59-
0.63

5.9-
6.3

460-
493

5.8-
6.2

1430-
1830

18-
23

68-
80

8.5-
10

700

250

Temp.

Temp.
Coefficient
of Br %°C

 

 

 

 

 

 

 

 

 

 

 

20-100°C

-0.004

 

 

 

 

 

 

 

 

 

 

 

100-200°C

-0.021

 

 

 

 

 

 

 

 

 

 

 

200-300°C

-0.042

ce(coFecu)5

YX-
12

0.70-
0.74

7.0-
7.4

358-
390

4.5-
4.9

358-
478

4.5-
6

80-
103

10-
13

450

200

 

 

 

Magnetic properties of Sm2Co17 (sintered SmCo magnet):

Material

Grade

Remanence

Coercive
Force

Intrinsic Coercive
Force

Max.
energy
product

Curie
Temp.

Max.
Operating
Temp.

Temp.
Coefficient
of Br

Temp.
Coefficient
of Hc

Br

Hcb

Hcj

(BH)max

Tc

Tw

Sm2Co17
Sm2
(CoFecuzr) 17

YXG-
24H

0.95-
1.02

9.5-
10.2

700-
750

8.7-
9.4

=1990

=25

175-
191

22-
24

800

350

-0.03

-0.2

YXG-
26H

1.02-
1.05

10.2-
10.5

750-
780

9.4-
9.8

=1990

=25

191-
207

24-
26

800

350

-0.03

-0.2

YXG-
28H

1.03-
1.08

10.3-
10.8

756-
796

9.5-
10

=1990

=25

207-
220

26-
28

800

350

-0.03

-0.2

YXG-
30H

1.08-
1.10

10.8-
11.0

788-
835

9.9-
10.5

=1990

=25

220-
240

28-
30

800

350

-0.03

-0.2

YXG-
24

0.95-
1.02

9.5-
10.2

700-
750

8.7-
9.4

=1433

=18

175-
191

22-
24

800

300

-0.03

-0.2

YXG-
26

1.02-
1.05

10.2-
10.5

750-
780

9.4-
9.8

=1433

=18

191-
207

24-
26

800

300

-0.03

-0.2

YXG-
28

1.03-
1.08

10.3-
10.8

756-
796

9.5-
10

=1433

=18

207-
220

26-
28

800

300

-0.03

-0.2

YXG-
30

1.08-
1.10

10.8-
11.0

788-
835

9.9-
10.5

=1433

=18

220-
240

28-
30

800

300

-0.03

-0.2

YXG-
26M

1.02-
1.05

10.2-
10.5

750-
780

9.4-
9.8

955-
1273

12-
16

191-
207

24-
26

800

300

-0.03

-0.2

YXG-
28M

1.03-
1.08

10.3-
10.8

756-
796

9.5-
10.0

955-
1273

12-
16

207-
220

26-
28

800

300

-0.03

-0.2

YXG-
30M

1.08-
1.10

10.8-
11.0

788-
835

9.9-
10.5

955-
1273

12-
16

220-
240

28-
30

800

300

-0.03

-0.2

YXG-
28L

1.02-
1.08

10.2-
10.8

398-
445

5.0-
5.6

400-
520

5.2-
6.5

207-
220

26-
28

800

250

-0.03

-0.2

YXG-
30L

1.08-
1.15

10.8-
11.5

398-
445

5.0-
5.6

400-
520

5.2-
6.5

220-
240

28-
30

800

250

-0.03

-0.2

Low
temperature coefficient Sm2Co17 (SmEr)2
(CoTM)17

LTC
(YXG-
22)

0.94-
0.98

9.4-
9.8

668-
715

8.4-
9.0

1194-
1591

15-
20

167-
183

21-
23

840

300

Temp.

Temp.
Coefficient
of Br %°C

 

 

 

 

 

 

 

 

 

 

 

-50-25°C

+0.005

 

 

 

 

 

 

 

 

 

 

 

20-100°C

+0.012

 

 

 

 

 

 

 

 

 

 

 

100-200°C

+0.006

 

 

 

 

 

 

 

 

 

 

 

200-300°C

-0.025

 

Characteristic comparisons of permanent magnetic materials:

Materials

(BH)max

Hcj

Br Tc

(Working temperature) max

Anti-causticity

SmCo1 : 5

16-25

15-25

-0.05

200-250

Good

SmCo2 : 17

22-30

6-30

-0.03

300-350

Good

NdFeB

26-52

12-30

-0.11

80-200

Bad

Ferrite magnet

3-4.5

3-4.5

-0.19

200-300

Good

AINiCo

5-10

1-1.8

-0.03

450-500

Excellent