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Ningbo Magbes Magnets Material Co.,Ltd

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PRODUCTS

Products Detail
Product name

SMCO MAGNET

Affiliate classification
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Product description

General Information

Well known as Rare Earth magnets, Samarium Cobalt (SmCo) is alloys of the Lanthanide group of elements, which is first kind of commercialized permanent magnet materials from early 1980’s. SmCo magnets are available in a number of different grades that span a wide range of properties and application requirements.

SmCo magnets are brittle and machining operations should be performed prior to magnetization, using diamond tools. We are equipped to fabricate these materials to blueprint specifications.

SmCo magnets are anisotropic, and can only be magnetized in the orientation direction. In general, magnetizing fields of about 35 to 45 kOe are required to saturate SmCo materials.

Assemblies

We are able to manufacture metal and other components of finished sub assemblies using our CNC machining facilities.

Assemblies can be fabricated by adhering magnets with adhesives to suit a range of environments, by mechanically fastening magnets, or by a combination of these methods. Due to the relatively brittle nature of these magnet materials,press fits are not recommended.

When multiple magnets are assembled in repelling positions, it is advisable to use mechanical fastening in addition to adhesives, since if adhesives were to give way, repelling magnets may dislodge and endanger personnel using them. Our design engineering team will be happy to assist you in designing both magnetic circuits and housings for your magnet assemblies.

Surface Treatments

The corrosion resistance of SmCo is considered good . Coatings for corrosion resistance are therefore not generally required for SmCo magnets.However,sometimes we supply SmCo magnets with Ni coating according to customers’ requirements.

Machining

SmCo is extremely brittle, and highly prone to chipping and cracking. Special machining techniques, involving diamond-grinding techniques, must be used to machine this material. We are fully equipped to machine these materials to your blueprint specifications.

Magnetizing and Handling

SmCo magnets require extremely high magnetizing fields and special consideration must be given to this when designing complex assemblies, if it is intended to magnetize after assembly. Consult us if you foresee any problems.

SmCo magnets are mechanically very weak, and magnetically very strong. They must therefore be handled very carefully to avoid damage and injury to personnel handling the magnets. Receiving and assembly personnel should be warned about the dangers of handling magnetized SmCo magnets.

Temperature Effects

SmCo magnets can operate at temperatures up to 350 C, depending upon the grade and permeance coefficient. Sm2Co17 materials exhibit superior temperature characteristics as compared to the Sm1Co5 types.

 

Magnetic properties of SmCo5 (Sintered SmCo Magnet)

Material

Grade

Remanence

Coercive Force

Intrinsic Coercive Force

Max.
energy product

Curie
Temperature

Max.
Operating
Temperature

Temperature
Coefficient
of Br

Temperature
Coefficient
of Hc

Br

Hcb

Hcj

(BH)max

Tc

Tw

SmCo5
(Smpr)co5

 

T

KGs

KA/m

KOe

KA/m

KOe

KJ/m3

MGoe

°C

°C

C

%C

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°C

250°C

-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°C

250°C

-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°C

250°C

-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°C

250°C

-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°C

250°C

-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°C

250°C

-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°C

250°C

-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°C

250°C

Temperature

Temperature
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°C

200°C

 

 

Magnetic properties of Sm2Co17 (Sintered SmCo Magnet)

Material

Grade

Remanence

Coercive Force

Intrinsic
Coercive Force

Max.
energy product

Curie
Temperature

Max.
Operating
Temperature

Temperature
Coefficient
of Br

Temperature
Coefficient
of Hc

Br

Hcb

Hcj

(BH)max

Tc

Tw

Sm2Co17

YXG-24H

0.95-1.02

9.5-
10.2

700-750

8.7-9.4

=1990

=25

175-191

22-24

800°C

350°C

-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°C

350°C

-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°C

350°C

-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°C

350°C

-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°C

300°C

-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°C

300°C

-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°C

300°C

-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°C

300°C

-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°C

300°C

-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°C

300°C

-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°C

300°C

-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°C

250°C

-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°C

250°C

-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°C

300°C

Temperature

Temperature
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°C

Good

SmCo2:17

22-30

6-30

-0.03

300-350°C

Good

NdFeB

26-52

12-30

-0.11

80-200°C

Bad

Ferrite magnet

3-4.5

3-4.5

-0.19

200-300°C

Good

AINiCo

5-10

1-1.8

-0.03

450-500°C

Excellent

 

Corresponding parameter set not found, please add it in property template of background
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