SINTERED NdFeB MAGNET DATA TABLES
| Magnet Grade SNd |
Remanence Br kG (mT) |
Coercive Force Hc kOe (kA/m) |
Intrinsic Coercivity Hci kOe (kA/m) |
Energy Product BHmax MGOe (kJ/m3) |
Maximum Operating Temperature (deg C) |
|---|---|---|---|---|---|
| 35-12 | 11.7-12-1 | 10.9 | 12 | 33-36 | 80 |
| (1170-1210) | (872) | (960) | (264-288) | ||
| 42-12 | 12.8-13.2 | 11.3 | 12 | 40-43 | 80 |
| (1280-1320) | (904) | (960) | (320-344) | ||
| 50-12 | 14.0 – 14.5 | 10.8 | 12 | 48-51 | 80 |
| (1400-1450) | (864) | (960) | (384-408) | ||
| 32-14 | 11.3-11.7 | 10.5 | 14 | 31-33 | 100 |
| (1130-1170) | (840) | (1120) | (248-264) | ||
| 40-14 | 12.5-12.8 | 11.6 | 14 | 38-41 | 100 |
| (1250-1280) | (928) | (1120) | (304-328) | ||
| 47-14 | 13.6-14.3 | 12.9 | 14 | 44-49 | 100 |
| (1360-1430) | (1032) | (1120) | (352-392) | ||
| 26-17 | 10.2-10.6 | 9.6 | 17 | 25-27 | 120 |
| (1020-1060) | (768) | (1360) | (200-216) | ||
| 38-17 | 12.1-12.5 | 11.3 | 17 | 36-39 | 120 |
| (1210-1250) | (904) | (1360) | (288-312) | ||
| 47-17 | 13.6-14.3 | 12.9 | 17 | 44-49 | 120 |
| (1360-1430) | (1032) | (1360) | (352-392) | ||
| 30-20 | 10.8-11.3 | 10.1 | 20 | 28-31 | 150 |
| (1080-1130) | (808) | (1600) | (224-248) | ||
| 38-20 | 12.1-12.5 | 11.4 | 20 | 36-39 | 150 |
| (1210-1250) | (912) | (1600) | (288-312) | ||
| 45-20 | 13.2-13.8 | 12.5 | 20 | 43-46 | 150 |
| (1320-1380) | (1000) | (1600) | (344-368) | ||
| 30-25 | 10.8-11.3 | 10.2 | 25 | 28-31 | 180 |
| (1080-1130) | (816) | (2000) | (224-248) | ||
| 38-25 | 12.1-12.5 | 11.4 | 25 | 36-39 | |
| (1210-1250) | -912 | -2000 | (288-312) | 180 | |
| 30-30 | 10.8-11.3 | 10.2 | 30 | 28-31 | |
| (1080-1130) | -816 | -2400 | (224-248) | 200 | |
| 35-30 | 11.7-12.1 | 10.2 | 30 | 33-36 | |
| (1170-1210) | -816 | -2400 | (264-288) | 200 | |
| 35-14 | 11.7-12.1 | 10.9 | 14 | 33-36 | |
| (1170-1210) | -872 | -1120 | (264-288) | 100 | |
| 45-17 | 13.2-13.8 | 12.5 | 17 | 43-46 | |
| (1320-1380) | -1000 | -1360 | (344-368) | 120 | |
| 42-20 | 12.8-13.2 | 12.5 | 20 | 40-43 | |
| (1280-1320) | -1000 | -1600 | (320-344) | 150 | |
| 33-20 | 11.3-11.7 | 10.6 | 20 | 31-34 | |
| (1130-1170) | -848 | -1600 | (248-272) | 150 | |
| 38-25 | 12.1-12.5 | 11.4 | 25 | 36-39 | |
| (1210-1250) | -912 | -2000 | (288-312) | 180 |
Notes
| The temperature Coefficient of Br | -0.10 to -0.12 | % per Degree C |
| The temperature Coefficient of Hci | -0.6 | % per Degree C |
| Recoil Permeability | 1.05 | |
| Density | 7.4-7.6 | grams per cm3 |
The above grades represent a portion of Polaris’ sintered NdFeB grades. Please contact PolarisREM for any other specific grade requirements. The operating temperatures are dependent on the intrinsic coercivity of the magnets. PolarisREM can assist in the selection of the magnet to meet your requirements