SAMARIUM COBALT MAGNETS

Samarium Cobalt (SmCo) magnets offer designers a tremendous combination of extremely high magnetic properties, outstanding thermal stability and excellent corrosion resistance. As part of the rare earth group of permanent magnets, Samarium Cobalt (SmCo) magnets typically fall into two families of materials. They include rare earth SmCo5 and Sm2Co17, and are commonly referred to as 1:5 and 2:17 materials.

Samarium Cobalt magnets are highly resistant to corrosion and require no special surface treatment. This makes Samarium Cobalt an excellent choice for compact designs where high temperature environments may be present.

Directions
Sintered SmCo Magnets
Adobe Acrobat Reader  


Typical Magnetic Properties
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
%/°C
%/°C
°C
g/cm3
SmCo5 16A
16.0
130.0
8.2
820
7.5
600
>16.0
>1270
-0.05
0.25
250
8.4
SmCo5 16B
16.0
130.0
8.2
820
7.5
600
>20.0
>1590
-0.05
0.25
250
8.4
SmCo5 18A
18.0
146.3
8.7
870
8.2
656
>16.0
>1272
-0.05
0.25
250
8.4
SmCo5 18B
18.0
146.3
8.7
870
8.2
656
>20.0
>1590
-0.05
0.25
250
8.4
SmCo5 20A
20.0
162.5
9.0
900
8.6
690
>16.0
>1272
-0.05
0.25
250
8.4
SmCo5 20B
20.0
162.5
9.0
900
8.6
690
>20.0
>1590
-0.05
0.25
250
8.4
SmCo5 22A
22.0
178.8
9.5
950
9.1
728
>16.0
>1272
-0.05
0.25
250
8.4
SmCo5 22B
22.0
178.8
9.5
950
9.1
728
>20.0
>1590
-0.05
0.25
250
8.4
Sm2Co17 24
24.0
195.0
10.0
1000
9.5
760
>20.0
>1590
-0.03
0.23
300
8.3
Sm2Co17 26A
26.0
211.3
10.6
1060
9.8
784
>16.0
>1272
-0.03
0.23
300
8.3
Sm2Co17 26B
26.0
211.3
10.6
1060
9.8
784
>20.0
>1590
-0.03
0.23
300
8.3
Sm2Co17 26H
26.0
211.3
10.6
1060
9.8
784
>26.0
>2067
-0.03
0.23
300
8.3
28.0
227.5
10.9
1090
10.0
800
>16.0
>1272
-0.03
0.23
300
8.3
Sm2Co17 28B
28.0
227.5
10.9
1090
10.0
800
>20.0
>1590
-0.03
0.23
300
8.3
Sm2Co17 28H
28.0
227.5
10.9
1090
10.0
800
>26.0
>2067
-0.03
0.23
300
8.3
Sm2Co17 30A
30.0
243.8
11.0
1100
10.2
816
>16.0
>1272
-0.03
0.23
300
8.3
Sm2Co17 30B
30.0
243.8
11.2
1120
10.2
816
>20.0
>1590
-0.03
0.23
300
8.3
Sm2Co17 32 31.0 251.8 11.5 1150 10.0 800 >15.0 >1192 -0.03 0.23 300 8.3
Sm2Co17 25H 25.0 203.2 10.5 1050 9.7 776 >35.0 >2782 -0.03 0.23 375 8.3
ISO 9001:2008 Quality Standard Certified
Special properties can be achieved with custom method.


Physical and Manufacturing Characteristics

Hardness
HV 10
Compression Strength
300 - 900 N/mm2
Bending Strength
120 N/mm2
Modulus
1.2-2.0x104 N/mm3
Electrical Resistance at 20°C
>0.5 ohm-cm
Specific Heat Capacity
370 J/(kg.C)


1. The minimum  dimension is 0.079" Diameter.
2. All shapes and properties can be supplied to meet customers' requirements.





NdFeB Magnets | SmCo Magnets | Bonded Magnets | Alnico Magnets | Ceramic Magnets | Flexible Magnets | Magnetic Assemblies 
WWW.MMCMAGNETICS.COM - The supplier of permanent magnetic materials and components.
Toll Free: 1.800.435.1088     ©2014 MMC Magnetics Corp. All rights reserved.