Introduction:
Samarium Cobalt holds its standard property in higher maximum temperatures than neodymium,although its maximum strengh is less.The cost of SmCo material is the most expensive, so SmCo is recommended only when its performance is a high temperature environment is a concern. smco magnet, sintered smco magnet
The characteristics of Samarium Cobalt Magnet
*Very high magnetic properties with good stability.
*Superior resistance to high temperature,Curie temperature of majority is over 800°C
*Excellent corrosion resistance capability,no coating is needed for surface protection.
Sintered SmCo magnet
1)Constitution: 35% Sm, 60% Co and 5% Fe & Cu
2)SmCo Magnet(Samarium Cobalt magnet) has superior resistance to high temperature(max temp reaches 350 degree centigrade).When working at above 180 degree centigrade, its maximum energy product BH and temperature stability are superior than NdFeB magnet.
2)Excellent resistance to corrosion, no coating is needed for the surface protecting.
3)SmCo is suitable for machines with high magnetic requirements and good for strict working environment requirements
4)All sorts of SmCo are used in the electronic magnetron, magnetic transmission, magnetic treatment, magnistor, etc
Sintered SmCo magnet
SmCo magnets | Magnetic Properties of SmCo Bonded Magnets | | Br | HcB | HcJ | BHmax | Tc | Tw | aBr | ALLOY
TYPE | | [mT] [Gs] | [KA/m] [Oe] | [KA/m] [Oe] | [kJ/m3] [MGOe] | [] | [] | [%/] | | 1 | 400 4000 | 278 3500 | 800 10000 | 32 4.0 | 720 | 120 | -0.08 | 1:5 | | 2 | 500 5000 | 318 4000 | 800 10000 | 48 6.0 | 720 | 120 | -0.08 | | 3 | 600 6000 | 358 4500 | 800 10000 | 64 8.0 | 720 | 120 | -0.08 | 2:17 | | 4 | 700 7000 | 318 4000 | 400 5000 | 80 10.0 | 720 | 120 | -0.08 | | 5 | 700 7000 | 398 5000 | 800 10000 | 80 10.0 | 720 | 120 | -0.08 |
Magnetic Characteristics and Physical Properties of sintered SmCo Magnets
| Grade | Br
Mt
(KGs) | bHc
KA/m
(KOe) | iHc
KA/m
(KOe) | (BHmax)
KJ/m3
(MGOe) | D
g/cm3 | Br.Temp.
%/℃ | Curie
Temp.℃ | Work.
temp. | | 1:5 | 1. | 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 | | 2. | 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 | | 3. | 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 | | 4. | 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 | | 5. | 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 | | 6. | 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 | 7. | 980-1080 | 676±40 | ≥1432 | 191±16 | 8.3-8.5 | -0.03< | 800< | ≤300< | | (9.8-10.8) | 8.5±0.5 | (≥18) | 24±2 | | 8. | 1000-1130 | 716±40 | ≥1194 | 207±16 | 8.3-8.5 | -0.03 | 800 | ≤300 | | (10.0-11.3) | 9.0±0.5 | (≥15) | 26±2 | | 9. | 1000-1130 | 716±40 | ≥796 | 207±16 | 8.3-8.5 | -0.03 | 800 | ≤300 | | (10.0-11.3) | 9.0±0.5 | (≥10) | 26±2 | | 10. | 1000-1100 | 440±80 | ≥413 | 203±20 | 8.3-8.5 | -0.03 | 800 | ≤300 | | (10.0-11.0) | 5.5±1.0 | (≥5.2) | 26±2 | | 11. | 1030-1130 | 756±40 | ≥1432 | 223±16 | 8.3-8.5 | -0.03 | 800 | ≤300 | | (10.3-11.3) | 9.5±0.5 | (≥18)< | 28±2 | | 12. | 1080-1180 | 756±40 | ≥1432 | 239±16 | 8.3-8.5 | -0.03 | 800 | ≤300 | | (10.8-11.8) | 9.5±0.5 | (≥18) | 30±2 | | 13. | 1080-1180 | 816±16 | ≥1600 | 239±16 | 8.3-8.5 | -0.03 | 800 | ≤350 | | (10.8-11.8) | 10.2±0.2 | (≥20) | 30±2 |
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