The most important features of Silicon Nitride is that Silicon Nitride 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.
Under good maintenance, Silicon Nitride tube can be used for many years in condition immersed in molten aluminum. This silicon nitride tube is usually paired with KANTHAL Bundle Rod to be used in immersion heater system or as the protection tube of the thermocouple.
Thermocouple Tube - Heater Tube - Riser Tube - Protection Tube - Baffle Plate - Aluminum Immersion Heater