SmCo magnet is a high performance low temperature coefficent permanent magnet made of samarium and cobalt and other rare-earth elements.Its biggest advantage is its high working temperature—350 degree centigrade.It needn’t to be coated because it is difficult to be eroded and oxidized.SmCo magnet is widely used in motors watch transducers instruments positional detector generators radar and etc.
MAGNETIC PROPERTIES OF SMCO MAGNETS
| Material | Code | Remanence Br | Coercivity Force | Intrinsic Coercivity | Maximum Energy | Curie | Maximum Operating | ||||
| Force | Product Bhm | Temperature | Temperature | ||||||||
| Br | bHc | iHc | (BH)max | TC | TW | ||||||
| T | KGs | KA/m | KOe | KA/m | KOe | KJ/m 3 | MGOe | ° C | ° C | ||
| Sintered SmCo Magnets | |||||||||||
| YX-18 | 0.85-0.9 | 8.5-9.0 | 620-648 | 7.8-8.2 | 1194-1513 | 15-19 | 127-143 | 16-18 | 750 | 250 | |
| SmCo1: 5 | YX-20 | 0.92-0.96 | 9.2-9.6 | 653-717 | 8.2-9.0 | 1194-1513 | 15-19 | 150-167 | 19-21 | 750 | 250 |
| YX-24 | 0.96-1.0 | 9.6-10.2 | 730-770 | 9.2-9.7 | 1194-1513 | 15-19 | 175-190 | 22-24 | 750 | 250 | |
| YXG-24 | 0.95-1.02 | 9.5-10.2 | 637-732 | 8.0-9.2 | 1433-1990 | 18-25 | 175-190 | 22-24 | 800 | 350 | |
| SmCo2: 17 | YXG-26 | 1.02-1.05 | 10.2-10.5 | 748-796 | 9.4-10.0 | 1433-1990 | 18-25 | 195-215 | 24-26 | 800 | 350 |
| YXG-28 | 1.05-0.08 | 10.5-10.8 | 756-796 | 9.5-10.0 | 1433-1831 | 18-25 | 205-220 | 26-28 | 800 | 350 | |
| YXG-28B | 1.02-1.10 | 10.2-11.0 | 420 | 5.2-5.6 | 440-520 | 5.5-6.5 | 205-220 | 26-28 | 800 | 350 | |
| YXG-30 | 1.08-1.10 | 10.8-11.0 | 780 | 9.8-10.5 | 955-1195 | 18-25 | 220-240 | 28-30 | 800 | 350 | |
| YXG-30B | 1.08-1.15 | 10.8-11.5 | 420 | 5.2-5.6 | 440-520 | 5.5-6.5 | 220-240 | 28-30 | 800 | 350 | |
| Bonded SmCo Magnets | |||||||||||
| Yb-6 | 0.4 | 4.0 | 280 | 3.5 | 800 | 10 | 30-50 | 4-6 | – | 120 | |
| SmCo1: 5 | Yb-10 | 0.5 | 5.0 | 320 | 4.0 | 800 | 10 | 50-65 | 6-8 | – | 120 |
| YbG-10 | 0.6 | 6.0 | 360 | 4.5 | 800 | 10 | 65-80 | 8-10 | – | 120 | |
| SmCo2: 17 | YbG-12 | 0.7 | 7.0 | 400 | 5.0 | 800 | 10 | 85-95 | 10-12 | – | 120 |
PHYSICAL PROPERTIES OF SMCO MAGNETS
| Parameter Name | Unit | SmCo 1:5 | SmCo 2:17 |
| Density | G/Cm3 | 8.3 | 8.4 |
| Curie Temperature | K | 1000 | 1100 |
| Vickers hardness | MPa | 450-500 | 550-600 |
| Compressing Strength | MPa | 1000 | 800 |
| Electronic Resistivity | Ω.Cm | 5-6&Times;10-5 | 8-9&Times;10-5 |
| Bending Strength | MPa | 150-180 | 130-150 |
| Stretching Strength | MPa | 400 | 350 |
| Hot Coefficient Of Expansion | (10-6/℃) | ‖6⊥12 | ‖6⊥11 |
| Note: The Above Specific Numbers Help To Consult, Not to Be The Judging Basis | |||