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Neodymium Magnet Physical Properties
Pull Force Table - The pull force
of each of our stock magnets listed in table format
Surface Field Table
- The surface field of each of our stock magnets listed in table format
Magnetic Characteristics
| Material Type |
Residual Flux Density
(Br) |
Coercive Force
(Hc) |
Intrinsic Coercive Force (Hci) |
Max.Energy Product
(BH)max |
| N35 |
11.7-12.1 KGs |
>11.0 KOe |
>12 KOe |
33-35 MGOe |
| N38 |
12.2-12.6 KGs |
>11.0 KOe |
>12 KOe |
36-38 MGOe |
| N40 |
12.6-12.9 KGs |
>11.0 KOe |
>12 KOe |
38-40 MGOe |
| N42 |
13.0-13.2 KGs |
>11.0 KOe |
>12 KOe |
40-42 MGOe |
| N45 |
13.3-13.7 KGs |
>11.0 KOe |
>12 KOe |
43-45 MGOe |
| N46 |
13.4-13.8 KGs |
>11.0 KOe |
>12 KOe |
43-46 MGOe |
| N48 |
13.8-14.2 KGs |
>11.0 KOe |
>12 KOe |
46-48 MGOe |
| N50 |
14.1-14.5 KGs |
>11.0 KOe |
>11 KOe |
48-50 MGOe |
| N52 |
14.5-14.8 KGs |
>11.2 KOe |
>11 KOe |
49.5-52 MGOe |
| N35M |
11.7-12.1 KGs |
>11.4 KOe |
>14 KOe |
33-35 MGOe |
| N38M |
12.2-12.6 KGs |
>11.4 KOe |
>14 KOe |
36-38 MGOe |
| N40M |
12.6-12.9 KGs |
>11.4 KOe |
>14 KOe |
38-40 MGOe |
| N42M |
13.0-13.3 KGs |
>11.4 KOe |
>14 KOe |
40-42 MGOe |
| N45M |
13.3-13.7 KGs |
>11.4 KOe |
>14 KOe |
42-45 MGOe |
| N48M |
13.6-14.2 KGs |
>11.4 KOe |
>14 KOe |
45-48 MGOe |
| N33H |
11.0-11.4 KGs |
>10.3 KOe |
>17 KOe |
31-33 MGOe |
| N35H |
11.4-11.7 KGs |
>10.8 KOe |
>17 KOe |
33-35 MGOe |
| N38H |
11.9-12.2 KGs |
>11.4 KOe |
>17 KOe |
36-38 MGOe |
| N40H |
12.3-12.6 KGs |
>11.4 KOe |
>17 KOe |
38-40 MGOe |
| N42H |
12.7-13.0 KGs |
>11.4 KOe |
>17 KOe |
40-42 MGOe |
| N44H |
13.1-13.3 KGs |
>11.4 KOe |
>16 KOe |
42-44 MGOe |
| N30SH |
10.8-11.2 KGs |
>10.1 KOe |
>20 KOe |
28-30 MGOe |
| N33SH |
11.4-11.7 KGs |
>10.3 KOe |
>20 KOe |
31-33 MGOe |
| N35SH |
11.7-12.1 KGs |
>10.8 KOe |
>20 KOe |
33-35 MGOe |
| N38SH |
12.2-12.6 KGs |
>11.4 KOe |
>20 KOe |
36-38 MGOe |
| N40SH |
12.6-12.9 KGs |
>11.4 KOe |
>20 KOe |
38-40 MGOe |
| N42SH |
13.0-13.3 KGs |
>11.4 KOe |
>19 KOe |
40-42 MGOe |
| N28UH |
10.4-10.8 KGs |
>9.8 KOe |
>25 KOe |
26-28 MGOe |
| N30UH |
10.8-11.2 KGs |
>10.1 KOe |
>25 KOe |
28-30 MGOe |
| N33UH |
11.4-11.7 KGs |
>10.3 KOe |
>25 KOe |
31-33 MGOe |
| N35UH |
11.7-12.1 KGs |
>10.8 KOe |
>25 KOe |
33-35 MGOe |
| N38UH |
12.2-12.6 KGs |
>11.4 KOe |
>25 KOe |
36-38 MGOe |
| N28EH |
10.4-10.8 KGs |
>10.2 KOe |
>30 KOe |
26-28 MGOe |
| N30EH |
10.8-11.2 KGs |
>10.6 KOe |
>30 KOe |
28-30 MGOe |
| N33EH |
11.4-11.7 KGs |
>11.0 KOe |
>30 KOe |
31-33 MGOe |
| N35EH |
11.7-12.1 KGs |
>11.4 KOe |
>30 KOe |
33-35 MGOe |
Thermal Characteristics
| Neodymium Material Type |
Temp. Coefficient (αBr) |
Maximum Operating Temp |
Curie Temp |
Thermal Conductivity |
|
%/°C |
ºC (ºF) |
ºC (ºF) |
kcal/m-h-°C |
| N |
-0.12 |
176ºF (80ºC) |
590ºF (310ºC) |
7.7 |
| NM |
-0.12 |
212ºF (100ºC) |
644ºF (340ºC) |
7.7 |
| NH |
-0.11 |
248ºF (120ºC) |
644ºF (340ºC) |
7.7 |
| NSH |
-0.10 |
302ºF (150ºC) |
644ºF (340ºC) |
7.7 |
| NUH |
-0.10 |
356ºF (180ºC) |
662ºF (350ºC) |
7.7 |
| NEH |
-0.10 |
392ºF (200ºC) |
662ºF (350ºC) |
7.7 |
Physical and Mechanical Characteristics
|
Density |
7.4-7.5 g/cm3 |
|
Compression Strength |
110 kg/mm2 |
|
Bending Strength |
25 kg/mm2 |
|
Vickers Hardness (Hv) |
500 - 600 |
|
Tensile Strength |
7.5kg/mm2 |
|
Young’s Modulus |
1.7 x 104 kg/mm2 |
|
Recoil Permeability |
1.05 μrec |
|
Electrical Resistance (R) |
160 µ-ohm-cm |
Thermal Expansion Coefficient (0 to 100°C)
parallel to magnetization direction |
5.2×10–6 /°C |
Thermal Expansion Coefficient (0 to 100°C)
perpendicular to magnetization direction |
–0.8×10–6 /°C |
Measurement Systems
| Unit |
cgs System |
SI System |
English System |
| Length (L) |
centimeter (cm) |
meter (m) |
inch (in) |
| Flux (ø) |
Maxwell |
Weber (Wb) |
Maxwell |
| Flux Density (B) |
Gauss (G) |
Tesla (T) |
lines/in2 |
| Magnetizing Force (H) |
Oersted (Oe) |
Ampere turns/m (At/m) |
Ampere turns/in (At/in) |
| Magnetomotive Force (mmf or F) |
Gilbert (Gb) |
Ampere turn (At) |
Ampere turn (At) |
Conversion Between Systems
|
cgs System to SI system |
| 1 Oe = 79.62 At/m |
| 10,000 G = 1 T |
| 1 Gb = 0.79577
At |
| 1 Maxwell = 1
Line = 10-8
Wb |
| 1 G = 0.155 lines/in2 |
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November
Specials
15% Off
1 1/2" x 1/4" x 1/8"
Neodymium Block
20% Off
1" dia. x 3/8" discs
Strong & Sturdy!
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(1-888-746-7556)
or 215-766-8055
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K&J Magnetics, Inc.
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