High strength 12-4*5mm Neodymium Magnetic Ring
Product Description
2.. Size: Custom-made dimension
3.Grade:N40-N52,30M-50M,30H-48H,28SH-45SH,28UH-42UH,28EH-38EH,28AH-33AH
4. Coating: Ni, Ni-Cu-Ni, Zn, Ag, Au and other special plating and coating
5.Detail Features of product:
- Low cost
- High corrosion resistance
- High working temperature
- Best choice for industrial application
6.Process of product:
Incoming Inspection | → | Mixing | → | Melting | → | Powder | → | Pressing |
↓ | ||||||||
Packing and Delivery | ← | Final Inspection | ← | Shape Processing | ← | Magnetic Testing | ← | Sintering |
Technical Data Sheet
Grade | Remanence Br mT (kGs) | Coercive force HcB KA/m (KOe) | Magnetic energy product Max KJ/m3 MGOe | Max.working temperature | |
N35-N52 | 1180-1440 | 836-923 | 263-406 | 80°C (176°F) | |
(11.8-14.4) | (10.8-11.6) | (33-51) | |||
30M-50M | 1080-1420 | 796-1050 | 223-390 | 100°C (212°F) | |
(10.8-14.2) | (10-13.2) | (28-49) | |||
30H-48H | 1080-1380 | 796-1027 | 223-366 | 120°C (248°F) | |
(10.8-13.8) | (10-12.6) | (28-46) | |||
28SH-45SH | 1050-1340 | 764-995 | 207-342 | 150°C (302°F) | |
(10.5-13.4) | (9.6-12) | (26-43) | |||
28UH-42UH | 1050-1310 | 764-923 | 207-326 | 180°C (356°F) | |
(10.5-13.1) | (9.6-11.6) | (26-41) | |||
28EH-38EH | 1050-1250 | 764-868 | 207-295 | 200°C (392°F) | |
(10.5-12.5) | (9.6-10.9) | (26-37) | |||
28AH-33AH | 1020-1170 | 780-836 | 199-271 | 220°C (428°F) |
Characteristic physical properties of sintered NdFeB magnet material at 20°C | ||
Density | 7.6 | g/cm3 |
Vickers hardness | 600 | HV |
Flexural strength | 240 | MPa |
Tensile strength | 75 | MPa |
Young's modulus | 150000 | MPa |
Curie temperature | 310 | °C |
Specific electrical resistivity | 1.2...1.6 | µΩm |
Specific heat | 450 | J/(kg.K) |
Thermal conductivity | 8...9 | W/(m.K) |
Coefficient of thermal expansion parallel to magnetization direction | 5...7 | 10-6/K |
Coefficient of thermal expansion perpendicular to magnetization direction | -3...-1 | 10-6/K |