Manufacturer and Supplier of Strong Permanent Magnets
Manufacturer and Supplier of Strong Permanent Magnets
Manufacturer and Supplier of Strong Permanent Magnets
Rectangular & Square Neodymium Magnets
magnets
magnets
Rectangular & Square Neodymium Magnets
magnets
magnets

Rectangular neodymium magnets offer outstanding performance. We often supply basic geometric shapes in various thicknesses and premium grades ranging from N30 to N55. The common coating option is a triple-coated (Ni-Cu-Ni) shiny nickel finish for optimal protection against corrosion.
Most block magnets have their north and south pole on the two largest areas. The few exceptions, which are magnetized in longitudinal direction.
These magnets can be fixed in place using adhesive or can be pushed into slots or grooves in wood or plastic. Many new packaging designs use neodymium magnets cleverly trapped behind laminations of cardboard to provide invisible closing mechanisms for folders, gift boxes, name badges and even greetings cards that stick to your refrigerator! Neodymium magnets attract each other with almost twice the force that they use to attract steel objects.

Parameter

Unit

Value

Density (ρ)

g/cm³

7.4-7.7

Curie Temperature (Tc)

310-370

Vickers Hardness (HV)

Mpa

500-600

Tensile Strength

Mpa

80-90

Young’s Modulus (E)

Gpa

150-200

Electrical Resistivity

µΩ·cm

144

Flexural Strength

kg/mm

25

Coeff. of Thermal Expansion

4*10-6

Thermal Conductivity (λ)

W(m.K)

8-10

Rigidity

N/m2

0.64

Compressibility

m2/N

9.8*10-12

Relative recoil permeability

µ rev

1.05


The usual magnetized direction of block magnets is through thickness, that means that the N-S poles are on the big flat surfaces.
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