Samarium Cobalt (SmCo) magnets ,the second generation of Rare Earth magnet material, have high magnetic properties, excellent thermal stability and resistant to corrosion. Compared with NdFeB, It needn't to be coated. It can typically be used up to 300 °C. Therefore , It is used in those fields,that applications demand resistance to wide range temperature and environments. How ever,It is extremely brittle and should not be used a structural component in an assembly. Smco magnets are manufactured by sintering or compression bonding. They are anisotropic and can only be magnetized in the direction of orientation. |
Typical Magnetic Performance for Sintered SmCo
Grade | Br | Hcb | Hcj | BH(max) | Curie Temp | Work Temp | ALLOY Series |
mT Gs | KA/m Oe | KA/m Oe | KJ/m3 MGOe | °C | °C | ||
SmCo18 | 800 8000 | 640 8000 | 1430 18000 | 144 18 | 750 | 250 | 1:5 |
SmCo20 | 850 8500 | 640 8000 | 1590 20000 | 160 20 | 750 | 250 | |
SmCo22 | 900 9000 | 650 8200 | 1430 18000 | 176 22 | 750 | 250 | |
SmCo24 | 980 9800 | 676 8500 | 1430 18000 | 192 24 | 800 | 300 | 2:17 |
SmCo26L | 1050 10500 | 410 5150 | 432 5430 | 208 26 | 800 | 300 | |
SmCo26 | 1000 10000 | 726 9000 | 1194 15000 | 208 26 | 800 | 300 | |
SmCo26M | 1000 10000 | 716 9000 | 1590 20000 | 208 26 | 800 | 300 | |
SmCo28 | 1030 10300 | 760 9500 | 1430 18000 | 224 28 | 800 | 300 | |
SmCo28H | 1030 10300 | 760 9500 | 1590 20000 | 224 28 | 800 | 300 | |
SmCo30H | 1100 11000 | 480 6000 | 560 7000 | 240 30 | 800 | 30 |
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