Description


Maximum operating temperature (TM)
● NdFeB AH series 220-240 ℃
● Sm2Co17 H series 320-350 ℃
● Sm2Co17 T series 350-550 ℃
● T series Sm2Co17 magnets were developed for ultra-high temperatures (350-550 ℃)
● From T350 to T550, magnets exhibit good demagnetization resistance at temperature ≤TM.
● The (BH)max is changing from 27 MGOe to 21 MGOe (T350-T550)
Magnetic Properties of T series Sm2Co17

Magnet Grade |
Test Temp | Max Energy Product | Remanance | Coercivity | Intrinsic Coercivity |
Reversible Temperature Coefficient |
Max Operating Temp | ||||
Coercivity | |||||||||||
(BH)max | Br | Hcb | Hcj | 20-150℃ | |||||||
MGOe | kGs | kOe | kOe | |αBr| | |βHcj| | Tmax | |||||
kJ/m3 | T | kA/m | kA/m | %/℃ | ℃ | ||||||
Typ | Min | Typ | Min | Typ | Min | Min | Typ | Typ |
T550 | 20℃ | 25 | 19 | 9.1 | 8.9 | 8.6 | 8.2 | 20 | 0.3 | 300 |
159 | 151 | 0.91 | 0.89 | 685 | 653 | 1592 | ||||
550℃ | 9.5 | 9 | 6.3 | 6 | 5.5 | 5.3 | 6.5 | |||
76 | 72 | 0.63 | 0.6 | 0.55 | 0.53 | 0.65 | ||||
T500 | 20℃ | 21 | 20 | 9.5 | 9.3 | 9.0 | 8.6 | 20 | 0.3 | 300 |
167 | 159 | 0.95 | 0.93 | 720 | 685 | 1592 | ||||
500℃ | 11 | 10 | 7 | 6.8 | 6.2 | 6.0 | 7.5 | |||
88 | 80 | 0.7 | 0.68 | 494 | 478 | 597 | ||||
T450 | 20℃ | 23 | 22 | 9.9 | 9.7 | 9.3 | 8.9 | 20 | 0.3 | 300 |
183 | 175 | 0.99 | 0.97 | 740 | 709 | 1592 | ||||
450℃ | 14 | 13 | 7.9 | 7.7 | 7.0 | 6.6 | 9.5 | |||
111 | 104 | 0.79 | 0.77 | 557 | 525 | 756 | ||||
T400 | 20℃ | 25 | 24 | 10.3 | 10.1 | 9.7 | 9.3 | 20 | 0.3 | 300 |
199 | 191 | 1.03 | 1.01 | 772 | 740 | 1592 | ||||
400℃ | 16 | 15 | 8.3 | 8.1 | 7.8 | 7.4 | 10 | |||
127 | 119 | 0.83 | 0.81 | 621 | 589 | 796 | ||||
T350 | 20℃ | 27 | 26 | 10.6 | 10.4 | 10 | 9.6 | 20 | 0.3 | 300 |
215 | 207 | 1.06 | 1.04 | 796 | 764 | 1592 | ||||
350℃ | 18 | 17 | 8.8 | 8.6 | 8.2 | 7.8 | 11 | |||
143 | 135 | 0.88 | 0.86 | 653 | 621 | 876 |
1.Max operating temperature of T series Sm2Co17(Tm) is the maximum temperature at which the B-H curve is a straight line at the second quadrant
2.Data was tested at 20℃ and TM with magnets of D10*10mm.
3.The reversible temperature coefficient(RTC) was calculated between 20℃ and Tm.
4.For other product details and specific requirements,please contact engineers
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