Thermocouple Protection Sheaths
Sialon thermocouple protection sheaths, for use in the aluminium and molten metal handling industries, are an advanced ceramic tube offering outstanding performance for temperature control in aluminium foundries and smelters.
Sialon is an alloy of silicon nitride and possesses a unique combination of physical properties such as high strength, toughness, excellent thermal shock resistance and resistance to corrosion, which make it the stand out material in this application.
Syalon 101 protection tubes are world renowned for their outstanding performance in contact with non-ferrous molten metals and allow constant temperature monitoring of the melt resulting in improved quality of the finished casting. In additon to its excellent physical properties it is also non-wetting to most non-ferrous alloys, making it resistant to build up of dross and is therefore very low maintainance.
For high temperature applications above 1200°C, Syalon 050 is the preferred choice. Again offering outstanding physical properties, Syalon 050 can be used be at temperatures up to 1400°C.
Sialon thermocouple sheaths are available in a range of standard sizes, as shown in the table below. These are usually available ex-stock. Tubes outside these standard sizes are also available but with a longer lead time. Please contact us with your enquiry.
Standard Sizes—Thermocouple Protection Sheaths
| OD/mm | ID/mm | Maximum Length/mm |
|---|---|---|
| 28 | 16 | 2000 |
| 22 | 12 | 2000 |
| 16 | 9 | 2000 |
| 12.5 | 6.5 | 1150 |
| 9 | 4 | 600 |
See our non-ferrous molten metal handling applications section for more information on applications of sialon in this industry or alternatively download our Molten Metal Handling Applications PDF.
For details on using our thermocouple protection sheaths, please download our Users Guide PDF.