External diameter
4 [mm] +0,1/-0,1
Height
4 [mm] +0,1/-0,1
magnetizing direction along dimension
4 [mm]
Grade
LNG37
Magnet type
AlNiCo
Magnetic field in geometrical center of the magnetic pole surface
0,041 [T]
Maximum working temperature
525 [°C]
Magnetic moment
11,4 [nWb]x[m]
Weight
0,39 [g]
Performance parameters
Direction of magnetization along the height (the last dimension included in a magnet name) means that the surface of a magnet perpendicular to its height makes the N-pole, while the other surface perpendicular to the height refers to the S-pole;.
For flat magnets and magnets mounted in the open magnetic circuit working temperature may be insignificantly lower. For high magnets and magnets mounted in the closed magnetic circuit working temperature equals max. working temperature for a given material. Curie’s temperature is ~ 860°[C]. Temperature coefficient of remanence TK(Br): approx. -0,02 [%/°C]. Temperature coefficient of coercivity TK(HcJ): approx. +0,02 [%/°C].
AlNiCo Magnets may be used in water.
All the numbers quoted were obtained as a result of tests with one specific item in a room temperature and are intended to serve for comparison of practical magnetic properties of magnets offered by the shop.
Magnetic properties of material grade LNG37
remanence Br |
1,2 [T] |
coercivity HcJ |
min. 955 [kA/m] |
energy product (BH)max |
37 [kJ/m3] |
| Magnetic properties of a particular material, together with its shape, volume, max. working temperature and direction of magnetization have influence on practical magnetic properties of a magnet. |
| As an example, you will find attached a graph of a course of the II quadrant of magnetic hysteresis loop for a material grade LNG37. |
Physical proprieties
density |
~7,3 [g/cm3] |