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SmCo Magnets

SmCo magnets

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Sintered Samarium Cobalt Magnets offer the designer a tremendous combination of extremely high magnetic properties, outstanding thermal stability and excellent corrosion resistance. These characteristics make SmCo the ideal material in applications like servo-motors, pump couplings, and sensors, particularly where the magnet is required to operate at high temperature, across a broad temperature range or in a corrosive environment.

Sintered Samarium Cobalt Magnets offer extremely high magnetic properties outstanding thermal stability and excellent corrosion resistance

Two types of SmCo magnets are SmCo5 and Sm2Co17. SmCo5 has a maximum energy product of 18MGOe, compared with 30MGOe for Sm2Co17. The 2-17 composition is also more corrosion resistant and more stable at very high temperature - its maximum working temperature is between 250 °C and approx. 350 °C.


Magnetic characteristics and physical properties of Sm-Co Magnets

Grade Br
mT
(KGs)
bHc
KA/m
(KOe)
iHc
KA/m
(KOe)
(BHmax)
KJ/m3
(MGOe)
D
g/cm3
Br.Temp.
%/°C
Curie
Temp.
°C
Temp.
°C
1:5 YX16 750-880 597±40 > 1989 127±16 8.0-8.2 -0.05 700-750 < 250
(7.5-8.8) 7.5±0.5 ( > 25) 16±2

YX18
800-930 637±40 > 1432 143±16 8.0-8.2 -0.05 700-750 < 250
(8.0-9.3) 8±0.5 (>18) 18±2

YX20
850-980 637±40 >1273 159±16 8.0-8.2 -0.05 700-750 < 250
(8.5-9.8) 8±0.5 (>16) 20±2

YXT18
900-1030 637±40 >1194 143±16 8.3-8.5 -0.01 800 < 250
(9.0-10.3) 8±0.5 (>15) 18±2

YX22A
900-1030 653±40 >1989 175±16 8.3-8.5 -0.03 800 < 250
(9.0-10.3) 8.2±0.5 (>25) 22±2

YX22B
900-1030 653±40 >1432 175±16 8.3-8.5 -0.03 800 < 250
(9.0-10.3) 8.2±0.5 (>18) 22±2
2:17
YX24
980-1080 676±40 >1432 191±16 8.3-8.5 -0.01 800 < 300
(9.8-10.8) 8.5±0.5 (>18) 24±2

YX26A
1000-1130 716±40 >1194 207±16 8.3-8.5 -0.01 800 < 300
(10.0-11.3) 9.0±0.5 (>15) 26±2

YX26B
1000-1130 716±40 >796 207±16 8.3-8.5 -0.01 800 < 300
(10.0-11.3) 9.0±0.5 (>10) 26±2

YX27
1000-1100 440±80 >413 203±20 8.3-8.5 -0.01 800 < 300
(10.0-11.0) 5.5±1.0 (>5.2) 26±2

YX28
1030-1130 756±40 >1432 223±16 8.3-8.5 -0.01 800 < 300
(10.3-11.3) 9.5±0.5 (>18) 28±2
YX30 1100-1200 478±40 >454 239±16 8.3-8.5 -0.01 800 < 300
(11.0-12.0) 6.0±0.5 (>5.8) 30±2

For available stock sizes and grades please see our online store, or if you require other sizes and shapes please complete our Design a magnet form and we will prepare a quote on your specific application.