40 x 20 x 10 / F30 - ferrite magnet

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40 x 20 x 20 / F30 - ferrite magnet
40 x 20 x 20 / F30 - ferrite magnet
40 x 20 x 10 / F30 - ferrite magnet40 x 20 x 10 / F30 - ferrite magnet€0.21

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1 pcs. €0.21 €0.26
850 pcs. €0.19 €0.23
2000 pcs. €0.18 €0.22
Quantity
Available Quantity: 6026 pcs.

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Performance parameters
Length
40 [mm] +2,5%/-2,5%
Width
20 [mm] +2,5%/-2,5%
Height
10 [mm] +0,1/-0,1
magnetizing direction along dimension
10 [mm]
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;.
Material
Ferrite
Grade
F30
Maximal hoisting capacity
2,1 [kg]
The pull force was measured by using metal sheet 10 [mm] thick, acting with perpendicular detaching force. The air gap comprised between the metal sheet and a magnet causes reduction in the pull force.
Maximum working temperature
250 °[C]
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 ~ 450°[C]. Temperature coefficient of remanence TK(Br): approx. -0,19 %/°[C]. Temperature coefficient of coercivity TK(HcJ): approx. 0,40 %/°[C].
water-resistant
yes
Ferrite magnets do not require anticorrosive protection. They my be used in water.
As ceramic magnets, ferrite magnets are brittle.
Weight
36 [g]
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 F30
remanence Br min. 0,37 [T]
coercivity HcB min. 175 [kA/m]
coercivity HcJ min. 180 [kA/m]
energy product (BH)max min. 26 [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 F30.
Physical proprieties
density ~4,5 [g/cm3]
resistivity 104 - 108 [uOhm x cm]
F30
mpl40x20x10f30
6026 Items
Specific References