APG 800 Series Ferrofluid
Type: APG 820
Ferrotec’s APG 820 Ferrofluid is a member of Ferrotec’s family of APG 800 Series ferrofluids for speaker applications. The APG 800 Series is black-brown or red-brown viscous fluid and uses a synthetic hydrocarbon carrier liquid.
APG 820 Specifications and Physical Properties
Appearance |
black-brown or red-brown viscous fluid |
Carrier Liquid |
synthetic hydrocarbon |
|
CGS Units |
SI Units |
Saturation Magnetization (Ms) |
110 Gauss |
11 mT |
Viscosity @27°C |
4000 cP |
4000 mPa·s |
Density @25°C |
1 g/cc |
1 103 kg/m3 |
Pour Point |
-21 °C |
-21 °C |
Flash Point |
>200 °C |
>200 °C |
Thermal Conductivity @38°C |
150 mW/(m·K) |
150 mW/(m·K) |
Surface Tension @25°C |
32 dynes/cm |
32 mN/m |
Coefficient of Thermal Expansion |
7.5 x 10-4 ml/ml°C |
7.5 x 10-4 /K |