Stable Performance Sintered Neodymium NdFeB Magnets N35-N52 Rare Earth Magnets
Price:
As negotiation
MOQ:
100pcs
Delivery Time:
20-25days
Product Description
Stable Performance Sintered Neodymium NdFeB Magnets N35-N52 Rare Earth Magnets
| Magnetic Performance | Stable |
| Corrosion Resistance | High |
| Temperature Resistance | High |
| Grade | N35-N52 |
| Pull Force | High |
| Application | Widely Used |
Product Description
Neodymium Iron Boron (NdFeB) or Neodymium magnets are extremely strong for their size. Available in various shapes including rings, blocks, discs, and custom configurations.
To prevent oxidation, these magnets are typically finished with protective zinc, nickel, or epoxy coatings.
Manufacturing process involves melting the elements together, milling into powder, dry-pressing in a magnetic field, sintering, grinding to dimension, magnetizing, and testing. Classified as "rare earth" magnets due to their neodymium content from the lanthanides group in the Periodic Table.
Physical Properties of Sintered Neodymium Magnet
| Parameter Name | Parameter Values | Unit |
|---|---|---|
| Curie Temperature | 310～380 | ℃ |
| Relative Recoil Permeability | 1.02～1.05 | |
| Reversible Temperature Coefficient of Br (20~100℃) | -0.09～-0.13 | %/℃ |
| Reversible Temperature Coefficient of Hcj (20~100℃) | -0.4～-0.7 | %/℃ |
| Density | 7.50～7.70 | g/cm3 |
| Vickers Hardness | 550～700 | |
| Bending Strength | -0.09～-0.13 | MPa |
| Tensile Strength | ≥80 | MPa |
| Compressive Strength | 800 ~1050 | MPa |
| Electric Resistivity | 150 | μΩ*cm |
| Thermal Conductivity | 8～10 | W/(M*℃) |
| Coefficient of Thermal Expansion (Parallel) | 5 | 10-6/K |
| Coefficient of Thermal Expansion (Vertical) | -1.5 | 10-6/K |
| Young's Modulus | 150～200 | GPa |
| Specific Heat (20℃～320℃) | 3.0～4.6 | J/(g*k) |
| Weight Loss (low weight loss products) | ≤2 | mg/cm2 |
Magnetic Properties of Sintered Neodymium Magnet
| Grade | Remanence (Br) | Coercivity (HcB) | Intrinsic Coercivity (HcJ) | Max Energy Product (BH)max | Working Temp (Tw) |
|---|---|---|---|---|---|
| KGs | T | KOe | KA/m | KOe | KA/m | MGOe | KJ/m³ | ℃ | |
| N35 | 11.7-12.2 | 1.17-1.22 | ≥10.9 | ≥868 | ≥12 | ≥955 | 33-36 | 263-287 | ≤80 |
| N38 | 12.2-12.5 | 1.22-1.25 | ≥11.3 | ≥899 | ≥12 | ≥955 | 36-39 | 287-310 | ≤80 |
| N40 | 12.5-12.8 | 1.25-1.28 | ≥11.4 | ≥907 | ≥12 | ≥955 | 38-41 | 302-326 | ≤80 |
| N42 | 12.8-13.2 | 1.28-1.32 | ≥11.5 | ≥915 | ≥12 | ≥955 | 40-43 | 318-342 | ≤80 |
| N45 | 13.2-13.8 | 1.32-1.38 | ≥11.6 | ≥923 | ≥12 | ≥955 | 43-46 | 342-366 | ≤80 |
| N48 | 13.8-14.2 | 1.38-1.42 | ≥11.6 | ≥923 | ≥12 | ≥955 | 46-49 | 366-390 | ≤80 |
| N50 | 14.0-14.5 | 1.40-1.45 | ≥10.0 | ≥796 | ≥11 | ≥876 | 48-51 | 382-406 | ≤60 |
| N52 | 14.3-14.8 | 1.43-1.48 | ≥10.0 | ≥796 | ≥11 | ≥876 | 50-53 | 398-422 | ≤60 |
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Company
Xiamen Un Magnet Co.,Ltd.
Location
Room 503,Building C,No.319,Hubin East Road,Xiamen,China
Contact Person
Sales Department