Neodymium Magnets, NdFeB Magnets
Introduce:
Neodymium Magnets, also known as NdFeB magnets, are the most widely-used type of rare earth magnets. It is the strongest type of permanent magnet made from an alloy of Neodymium, Iron, and Boron with the Nd2Fe14B tetragonal crystalline structure. It has replaced other types of magnets in many applications in modern products that require strong permanent magnets, such as motors in cordless tools, hard disk drives, and magnetic fasteners.
Neodymium Magnets Grade
| NdFeB Magnet Grade | |||||||
|
Type |
Grade |
Residual Induction /BR(Gauss) |
Coercive Force/Hc (Oe) |
Intrinsic Coercive Force/Hci (Koe) |
Max.Energy Product/Bhmax (MGOe) |
Maximum Operating Temp (°C/°F) |
Curie Temp (°C/°F) |
|
N |
N35 |
11700 |
10900 |
12 |
35 |
80/176 |
310/590 |
|
N |
N38 |
12200 |
11300 |
12 |
38 |
80/176 |
310/590 |
|
N |
N40 |
12500 |
11400 |
12 |
40 |
80/176 |
310/590 |
|
N |
N42 |
12800 |
11500 |
12 |
42 |
80/176 |
310/590 |
|
N |
N45 |
13200 |
11600 |
12 |
45 |
80/176 |
310/590 |
|
N |
N48 |
13800 |
11600 |
12 |
48 |
80/176 |
310/590 |
|
N |
N50 |
14000 |
10000 |
11 |
50 |
60/140 |
310/590 |
|
N |
N52 |
14300 |
10000 |
11 |
52 |
60/140 |
310/590 |
|
M |
N33M |
11300 |
10500 |
14 |
33 |
100/212 |
340/644 |
|
M |
N35M |
11700 |
10900 |
14 |
35 |
100/212 |
340/644 |
|
M |
N38M |
12200 |
11300 |
14 |
38 |
100/212 |
340/644 |
|
M |
N40M |
12500 |
11600 |
14 |
40 |
100/212 |
340/644 |
|
M |
N42M |
12800 |
12000 |
14 |
42 |
100/212 |
340/644 |
|
M |
N45M |
13200 |
12500 |
14 |
45 |
100/212 |
340/644 |
|
M |
N48M |
13600 |
12900 |
14 |
48 |
100/212 |
340/644 |
|
M |
N50M |
14000 |
13000 |
14 |
50 |
100/212 |
340/644 |
|
H |
N35H |
11700 |
10900 |
17 |
35 |
120/248 |
340/644 |
|
H |
N38H |
12200 |
11300 |
17 |
38 |
120/248 |
340/644 |
|
H |
N40H |
12500 |
11600 |
17 |
40 |
120/248 |
340/644 |
|
H |
N42H |
12800 |
12000 |
17 |
42 |
120/248 |
340/644 |
|
H |
N45H |
13200 |
12100 |
17 |
45 |
120/248 |
340/644 |
|
H |
N48H |
13700 |
12500 |
17 |
48 |
120/248 |
340/644 |
|
SH |
N35SH |
11700 |
11000 |
20 |
35 |
150/302 |
340/644 |
|
SH |
N38SH |
12200 |
11400 |
20 |
38 |
150/302 |
340/644 |
|
SH |
N40SH |
12500 |
11800 |
20 |
40 |
150/302 |
340/644 |
|
SH |
N42SH |
12800 |
12400 |
20 |
42 |
150/302 |
340/644 |
|
SH |
N45SH |
13200 |
12600 |
20 |
45 |
150/302 |
340/644 |
|
UH |
N28UH |
10200 |
9600 |
25 |
28 |
180/356 |
350/662 |
|
UH |
N30UH |
10800 |
10200 |
25 |
30 |
180/356 |
350/662 |
|
UH |
N33UH |
11300 |
10700 |
25 |
33 |
180/356 |
350/662 |
|
UH |
N35UH |
11800 |
10800 |
25 |
35 |
180/356 |
350/662 |
|
UH |
N38UH |
12200 |
11000 |
25 |
38 |
180/356 |
350/662 |
|
UH |
N40UH |
12500 |
11300 |
25 |
40 |
180/356 |
350/662 |
|
UH |
N42UH |
12800 |
11300 |
25 |
42 |
180/356 |
350/662 |
|
EH |
N28EH |
10400 |
9800 |
30 |
28 |
200/392 |
350/662 |
|
EH |
N30EH |
10800 |
10200 |
30 |
30 |
200/392 |
350/662 |
|
EH |
N33EH |
11300 |
10500 |
30 |
33 |
200/392 |
350/662 |
|
EH |
N35EH |
11700 |
11000 |
30 |
35 |
200/392 |
350/662 |
|
EH |
N38EH |
12200 |
11300 |
30 |
38 |
200/392 |
350/662 |
|
EH |
N40EH |
12500 |
11300 |
30 |
40 |
200/392 |
350/662 |
|
AH |
N28AH |
10400 |
9900 |
33 |
28 |
230/446 |
350/662 |
|
AH |
N30AH |
10800 |
10300 |
33 |
30 |
230/446 |
350/662 |
|
AH |
N33AH |
11300 |
10600 |
33 |
33 |
230/446 |
350/662 |
|
AH |
N35AH |
11700 |
11000 |
33 |
35 |
230/446 |
350/662 |
|
AH |
N38AH |
12200 |
11300 |
33 |
38 |
230/446 |
350/662 |
Neodymium Magnets Shape:
|
Discs |
Blocks |
Rings |
Cylinders |
Other Shape |
Neodymium Magnets Coating:
|
Name |
Coating Thickness(μm) |
Color |
PCT |
Humidity Test |
Salt Spray Test |
Collision Test |
|
White Zinc |
8-15 |
Blue and white |
3 |
3 |
3 |
2 |
|
Color Zinc |
10-15 |
Multicolor |
3 |
3 |
2 |
2 |
|
Nickel |
20-30 |
Silver |
1 |
1 |
3 |
1 |
|
Electroless Nickel |
20-30 |
Silver |
1 |
1 |
1 |
1 |
|
NiCuNi |
15-30 |
Silver |
2 |
1 |
2 |
1 |
|
NiSn |
20-30 |
Silver |
2 |
1 |
2 |
1 |
|
Epoxy |
10-30 |
Black |
2 |
1 |
1 |
1 |
|
Phosphating |
1-3 |
Black |
3 |
2 |
3 |
3 |
|
NiAu |
10-20 |
Gold |
2 |
2 |
2 |
1 |
Neodymium Magnets Application:
NdFeB magnets are widely used technology in aerospace, aviation, electronics, and other instruments.
Link to this article: https://www.albmaterials.com/knowledge/neodymium-magnets-introduction.html
