Information of N42SH Grade Strong Neodymium Ring Magnets Permanent Magnets with Gold Coating
1. Materials
Rare Earth Neodymium Magnet.
2. Grades
| Grade | N35, N38, N40, N42, N45, N48, N50, N52. | Max. Working Temperature 80 °C |
| 33M, 35M, 38M, 40M, 42M, 45M, 48M, 50M. | Max. Working Temperature 100 °C | |
| 35H, 38H, 40H, 42H, 45H, 48H. | Max. Working Temperature 120 °C | |
| 35SH, 38SH, 40SH, 42SH, 45SH. | Max. Working Temperature 150 °C | |
| 28UH, 30UH, 33UH, 35UH, 38UH. | Max. Working Temperature 180 °C | |
| 28EH, 30EH, 33EH, 35EH, 38EH. | Max. Working Temperature 200 °C | |
| 28AH, 30AH, 33AH. | Max. Working Temperature 220 °C |
3. Shapes
Ring, 0thers available: Block, Disc, Cylinder, Arc, other special shapes can also be customized.
5. Magnetic Properties of N42SH Grade Strong Neodymium Ring Magnets Permanent Ring Magnets with Gold Coating
Residual Induction - Br = 12.8 - 13.2 kGs / mT
Coercive Force - Hcb ≥ 12.4 kOe / ≥ 987 kA/m
Intrinsic Coercive - Hcj ≥ 20 kOe / ≥ 1592 kA/m
Maximum Energy Product - (BH)max = 40 - 43 MGOe / 318 - 342 kJ/m3
Maximum Working Temperature - Tw = 150 ℃
6. Drawing and Magnetization Direction for N42SH Grade Strong NeodymiumMagnets Permanent Ring Magnets with Gold Coating 
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