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| AlNiCo | Bonded NdFeB | Smco | Ferrite | NdFeB | Plastic | Rubber NdFeB |
|
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|
 NdFeB Magnet
Characteristics
|
GRADE |
Remanence |
Normal
Coercivity |
Intrinsic
Coercivity |
Maxinum
Energy
Product |
|
|
Br |
Hcb |
Hcj |
BHmax |
|
T |
G |
kA/m |
kOe |
|
kj/m3 |
MGOe |
|
N27 |
1.02-1.06 |
10200-10600 |
740-796 |
9.3-10.0 |
S、U、E、Z |
199-215 |
25-27 |
|
N28 |
1.06-1.11 |
10600-11000 |
796-835 |
10.0-10.5 |
U、E、Z |
215-239 |
27-30 |
|
N30 |
1.08-1.15 |
10800-11500 |
755-850 |
9.5-10.7 |
(N)、M、H、S |
220-245 |
28-31 |
|
N33 |
1.13-1.17 |
11300-11700 |
795-915 |
10.0-11.5 |
(N)、M、H、S、U |
245-260 |
31-33 |
|
N35 |
1.19-1.22 |
11900-12200 |
860-915 |
10.8-11.5 |
(N)、M、H、S |
271-287 |
34-36 |
|
N38 |
1.24-1.27 |
12400-12700 |
875-987 |
11.0-12.4 |
(N)、H、S |
295-310 |
37-39 |
|
N40 |
1.28-1.32 |
12800-13200 |
947-1020 |
11.9-12.8 |
(N)、H |
310-326 |
39-41 |
|
N42 |
1.3-1.34 |
13000-13400 |
947-1036 |
11.9-13.0 |
(N)、M、H |
326-342 |
41-43 |
|
N45 |
1.33-1.38 |
13300-13800 |
836-1011 |
10.5-12.7 |
(N) |
344-376 |
43-47 |
|
N48 |
1.38-1.44 |
13800-14400 |
820-1035 |
10.5-13.0 |
(N)、M |
376-408 |
47-49 |
|
N50 |
1.41-1.47 |
14100-14700 |
820-1035 |
10.5-13.0 |
(N) |
408-434 |
49-52 |
|
|
（N） |
M |
H |
S |
U |
E |
Z |
|
Hcj |
kA/m |
955 |
1114 |
1353 |
1595 |
1990 |
2153 |
2392 |
|
kOe |
12 |
14 |
17 |
20 |
25 |
27 |
30 |
|
Hcb |
kA/m |
755-1011 |
780-987 |
740-1036 |
740-987 |
796-915 |
836-915 |
795-835 |
|
kOe |
9.5-12.7 |
9.8-12.2 |
9.3-13.0 |
9.3-12.4 |
10.0-11.5 |
10.5-11.5 |
10.0-10.5 |
|
Tmax |
℃ |
80 |
100 |
120 |
150 |
180 |
200 |
220 |
|
(L/D=0.7,Cylinder)The open flux irreversible
loss of the testing sample at this
temperature:≤5%. |
Other Physical
Properties
| |
 Temp.coeff.of Br: -0.11%℃
Temp.coeff.of Hcj: -0.60%℃
Density: 7.4g/cm3
Electrical Resistivity: 144μΩ.cm
Vickers Hardness: 600Hv
Flexural Strength: 25kg/mm
Tensile Strength 8.0kg/mm2
Coeff.of Thermal Expansion:
4x10-b/℃
Specific Heat:
0.12kCal/(kg.℃) Thermal Conductivity:
7.7kcal/(m.h.℃)
Young's Modullus:
1.6x1011N/m2 Rigidity: 064N/m2
Poisson's Ratio: 0.24
Compressibility: 9.8x10-12m2/N
Curie Temperature:
310-340℃ Relative recoil permeabilityμrev
1.05 |
Surface Threatment
Method
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