3M™ Silicon Nitride Heater Tubes resist chemical attack by molten aluminum helping to extend equipment life and prevent contamination of the melt.
3M™ Silicon Nitride Heater Tubes offer high thermal conductivity and thermal shock resistance. At the same time, they resist chemical attack by molten metals. This not only helps extend equipment service life but also helps prevent particles from separating from the tubes and contaminating the melt. 3M silicon nitride heater tubes are suitable for use as immersion heaters for applications such as gas burners and electrical heating systems. They are not wetted by aluminum, and can be used in melts containing sodium and strontium.