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Physical Properties of Alnico Magnets

Addtime:2024-06-19 14:10:05 Click:163

General Physical Properties of Alnico magnets;

Manufactured by casting or powder metallurgy

Alloy consisting of AI-Ni-Fe-Co

Very hard and brittle

Low demagnetization resistance

Excellent temperature stability

Good machinability

Average magnetic properties

Casting And Sintering Alnico Magnets Physical Properties

Property

Units

Value Sintered Alnico

Value Cast Alnico

Vickers Hardness

Hv

440

440-620

Density

g/cm3

6.8 – 7.0

6.9 – 7.3

Curie Temp TC

°C

810 – 860

740 – 860

Curie Temp TF

°F

1,400 – 1,580

1,460 – 1,580

Specific Resistance

μΩ⋅Cm

50- 70

45 – 75

Bending Strength

kN/mm2

0.35 – 0.76

0.05 – 0.31

Tensile Strength

kN/mm2

0.35- 0.45

0.02 – 0.15

Thermal Expansion

°C-1

+11.0 to +12.4 x10-6

+11.0 to +13.0 x10-6

The listed values are approximate and should be used as a reference. Any magnetic or physical characteristics should be substantiated before selecting a magnet material.


Product Direct Category;

Alnico magnets


The following article may be helpful;

Temperature coefficient for cast and sintered Alnico 5 6 8

Alnico magnets 1-9 performance parameter datasheet

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