Alnico Magnet

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Alnico Cylinder

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Alnico Assembly

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Alnico Magnets (Aluminium-Nickel-Cobalt Magnets)

 

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Material Information

Production by casting or powder metallurgical techniques An alloy composed of matrix of Al-Ni-Fe-Co Excellent stability over a wide temperature range higher than 500°C Strong corrosion resistance capability without coating for surface protection Good resistance to demagnetization from vibration and shock Good flux density at an reasonable cost Very hard & brittle

Typical Physical Properties

Curie Temperature (°C)	860
Maximum Operating Temperature (°C)	525-550
Resistivity (µ ohm.cm)	47-54
Hardness (Hv)	520-630
Density (g/cm3)	6.90-7.30
Relative Recoil Permeability (µrec)	1.70-4.70
Saturation Field Strength, kOe (kA/m)	2.7-6.3 (215-500)
Temperature Coefficient of Br (%/°C)	-0.025 ~ -0.02
Temperature Coefficient of iHc (%/°C)	+0.01 ~ +0.03

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