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Sialon Thermocouple Protection Sheath and Tube

silicon nitride and sialon advanced ceramic thermocouple protection sheaths for use in the aluminium and molten metal handling industries. They are an advanced ceramic tube offering outstanding performance for temperature control in aluminium foundries and smelters and are extremely cost effective compared to competitive materials, such as cast iron, silicon carbide and alumina.

Sialons are alloys of silicon nitride and possess 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 protection tubes are world renowned for their outstanding performance in contact with non-ferrous molten metals, particularly aluminium and its alloys and zinc. They allow constant temperature monitoring of the melt resulting in improved quality of the finished casting. In addition to its excellent physical properties, Syalon is also non-wetting to most non-ferrous alloys, making it resistant to build up of dross and is therefore very low maintenance.

For high temperature applications above 1200°C, Syalon  is the preferred choice. Again offering outstanding physical properties, Syalon 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 tubes

28 /16, 22 / 12, 16 / 9, 12.5 / 6.5, 9 / 4 mm,