NdFeB Strong Permanent Magnets Square Shape For Speaker And Motors
| Place of Origin: | Zhejiang |
|---|
Company Profile
| Location: | Nanjing, Jiangsu, China (Mainland) |
|---|---|
| Business Type: | Manufacturer |
| Main Products: | Cast Alnico Magnet, Alnico 5 Magnet, Alnico 8 Magnet |
Product Description
NdFeB Strong Permanent Magnets Square Shape For Speaker And Motors
Quick Detail:
1. Natural alloy color
2.All products packed in neutral paper carton
3. samarium cobalt and other rare earth materials.
4. Compliant to RoHS
5. It is permanent rare earth magnet which features high magnetic properties with good stability,
resistance to acid corrosion, curie temperature reaches 800-850oC.
|
Physical Properties of NdFeB Magnet |
|
|
Density(g/cm3) |
7.3-7.5 |
|
Curie Temperature () |
320 |
|
Max. Operating Temperature () |
220 |
|
Relative Permeability |
1.05 |
|
Flexural Strength (N/nm2) |
250 |
|
Compressive Strength (N/nm2) |
1100 |
|
Tensile Strength (N/nm2) |
75 |
|
Hardness (Hv) |
550-650 |
|
Temperature Coefficient of Br (%/) |
-0.09~-0.12 |
|
Temperature Coefficient of Hcj (%/) |
-0.50~-0.65 |
Characteristics of permanent SmCo magnet:
|
Curie Temp. |
Tc |
°C |
800~850 |
Coeff. of thermal expansion |
C // |
1/°C |
~8×10-5 |
|
Density |
D |
g/cm3 |
8.3~8.5 |
C |
1/°C |
~11×10-5 |
|
|
Recoil Permeability |
µrec |
|
1.00~1.05 |
Regidity strength |
N/m2 |
~1.5×108 |
|
|
Max. Working Temp. |
Tmax |
°C |
350 |
Compress strength |
N/m2 |
~8×108 |
|
|
Electrical Resistivity |
|
Ω. Cm |
~8.6×10-5 |
Tensile strength |
N/m2 |
~3.5×107 |
|
|
Vickers Hardness |
Hv |
|
500~600 |
young's modulus |
N/m2 |
~1.2×1011 |
|
|
Thermal Conduct Rate |
|
W/mK |
~12 |
Magnetization field Ha |
kA/m |
≥1600 |
|
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