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Product detail

  • Product Name:

    Sintered SmCo Magnet

  • Model No: Sintered SmCo Magnet

Description

A Sintered SmCo Magnet, a type of rare earth magnet, is a strong permanent magnet made of an alloy of samarium and cobalt. They were developed in the early 1970s. They are generally the second-strongest type of magnet made, less strong than neodymium magnets, but have higher temperature ratings and higher coercivity. They are brittle, and prone to cracking and chipping. Samarium–cobalt magnets have maximum energy products (BHmax) that range from 16 megagauss-oersteds (MGOe) to 32 MGOe, that is approx. 128 kJ/m3 to 256 kJ/m3; their theoretical limit is 34 MGOe, about 272 kJ/m3. They are available in two “series”, namely Series 1:5 and Series 2:17.
 
SmCo Magnet (Sintered SmCo Magnet) is a high performance, low temperature coefficient permanent magnet with its high working temperature – 350 degree centigrade. When working above 180 degree centigrade, SmCo Magnet (Sintered SmCo Magnet) maximum energy product BH and steady temperature are superior than NdFeB magnetic materials. SmCo Magnet (Sintered SmCo Magnet)  needn’t to be coated because it is difficult to be eroded and oxidized. Sintered SmCo is widely used in motors, watch, transducers, instruments, positional detector, generators, radar communications, medical equipments, various magnetism spreading devices, magnetic processor, electrical engineering and magnetic derrick.
 
Sintered SmCo Magnet Feature:
1) Very high magnetic properties with good stability
2) Superior resistance to high temperature
3) Curie temperature of majority is over 800oC
4) Excellent corrosion resistance capability5) No coating is needed for surface protection.
 
SmCo Magnets is made of thulium samarium and transition metal cobalt, iron and copper. It is the second generation of thulium magnet. SmCo Magnets has not only high Energy Product(14—28MGOe)and reliable coercive force, but also good temperature trait. Compared to NdFeB magnet, with valu Sm and Co in it. SmCo Magnets is suitable to high temperature. Since this material contents more percentage of valuable Sm and Co, the application is therefore not wider than others.

Sintered SmCo Magnet SmCo5Demagnetization curves of sintered Magnet SmCo5 at different temperatures

 

Sintered SmCo Magnet Sm2Co17

Demagnetization curves of sintered Magnet Sm2Co17 at different temperatures

 

Magnetic Properties of Sintered SmCo Magnet:

Grade
Max. Energy
Product
Remanence
Coercive Force
Rev. Temp.
Coeff.
Working
Temp.
Density
(BH)max
Br
Hc
Hci
Bd
Hd
Tw
D
MGOe
kJ/m3
kG
mT
kOe
kA/m
kOe
kA/m
%/oC
%/oC
oC
g/cm3
SmCo5 16A
16
130
8.2
820
7.5
600
>16.0
>1270
-0.05
0.25
250
8.4
SmCo5 16B
16
130
8.2
820
7.5
600
>20.0
>1590
-0.05
0.25
250
8.4
SmCo5 18A
18
146.3
8.7
870
8.2
656
>16.0
>1272
-0.05
0.25
250
8.4
SmCo5 18B
18
146.3
8.7
870
8.2
656
>20.0
>1590
-0.05
0.25
250
8.4
SmCo5 20A
20
162.5
9
900
8.6
690
>16.0
>1272
-0.05
0.25
250
8.4
SmCo5 20B
20
162.5
9
900
8.6
690
>20.0
>1590
-0.05
0.25
250
8.4
SmCo5 22A
22
178.8
9.5
950
9.1
728
>16.0
>1272
-0.05
0.25
250
8.4
SmCo5 22B
22
178.8
9.5
950
9.1
728
>20.0
>1590
-0.05
0.25
250
8.4
Sm2Co17 24
24
195
10
1000
9.5
760
>20.0
>1590
-0.03
0.23
300
8.3
Sm2Co17 26A
26
211.3
10.6
1060
9.8
784
>16.0
>1272
-0.03
0.23
300
8.3
Sm2Co17 26B
26
211.3
10.6
1060
9.8
784
>20.0
>1590
-0.03
0.23
300
8.3
26
211.3
10.6
1060
9.8
784
>26.0
>2067
-0.03
0.23
300
8.3
Sm2Co1728A
28
227.5
10.9
1090
10
800
>16.0
>1272
-0.03
0.23
300
8.3
Sm2Co17 28B
28
227.5
10.9
1090
10
800
>20.0
>1590
-0.03
0.23
300
8.3
Sm2Co17 28H
28
227.5
10.9
1090
10
800
>26.0
>2067
-0.03
0.23
300
8.3
Sm2Co17 30A
30
243.8
11
1100
10.2
816
>16.0
>1272
-0.03
0.23
300
8.3
Sm2Co17 30B
30
243.8
11.2
1120
10.2
816
>20.0
>1590
-0.03
0.23
300
8.3
Sm2Co17 32
31
251.8
11.5
1150
10
800
>15.0
>1192
-0.03
0.23
300
8.3
Sm2Co17 25H
25
203.2
10.5
1050
9.7
776
>35.0
>2782
-0.03
0.23
375
8.3

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