Specialist for premium permanent magnets materials
Specialist for premium permanent magnets materials
Specialist for premium permanent magnets materials
D75X65 MM Alnico 5 Round Bar Magnet
Alnico 5 Round Bar Magnet D75X65 MM
Alnico 5 Round Bar Magnet D75X65 MM
D75X65 MM Alnico 5 Round Bar Magnet
Alnico 5 Round Bar Magnet D75X65 MM
Alnico 5 Round Bar Magnet D75X65 MM

Technical specification:

Shape: Round bar

Size: D75 x 65mm (diameter x length)

Default tolerance: +/-0.1mm Or customize as required

Plating: Uncoated

Material: Alnico (aluminum-nickel-cobalt)

Grade: Alnico 5 (LNG40), anisotropic type

Magnetic Characteristics: Br: 1,250mT, Hcb: 48kA/m, BH: 40KJ/m³

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, Temperature coefficient of Br and iHc <±0.03%

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


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