Introduction
Silicon nitride heater tubes does not react with molten aluminum and has non-wetting properties to molten aluminum. Our Silicon Nitride Tube has a very good thermal conductivity which is important to transfer heat effectively from the heater to molten aluminum.
Features
- High thermal conductivity
- High temperature resistance
- Good corrosion resistance (non ferrous metals)
- Good chemical resistance
- Good oxidation resistance
- Very low porosity
- Non-wetting in molten metal smelts
- Dimensions can be customized to fit your needs
Application
Silicon Nitride heater tubes are widely used in the non-ferous molten metal industry. Thanks to the high non-wetting properities that they are highly suitable for the foundries using materials such as aluminium, gold, magnesium etc. The tubes have high resistance to corrosion, errosion and oxidation, servicing a long life-time.
Property
| GPSN Technical Data | |
S3N4 % |
>98 |
Bulk Density g/cm3 |
3.2 |
Apparent Pprosity % |
<0.3 |
Flexural Strength R.T. MPa |
>850 |
Compressive Strength MPa |
1500 |
Thermal Expansion Coeff. (0-1200°C) (10-6/K-1) |
3.2 |
Thermal Conductivity 40℃ (W/m/K) |
28 |
Fracture Toughness K1C，MPam1/2 |
7.2 |
Hardness HRA |
94 |
Max Working Temp ℃ |
1400 |
