Silica composite refractory cylinder
max. 1 200 °C (2 192 °F) | RSLE-501
Zircar Refractory Composites
RSLE- 501 exhibits a very low coefficient of expansion 0.3 x 10-6 °C which provides remarkable resistance to the thermal shock up to 1200°C (2192°F) in an oxidizing atmosphere and permits its use with rapid variation in temperature in that zone. Beyond 1200°C (2192°F) it will transforms into a crystalline structure, while maintaining its properties up to 1650°C (3002°F) providing that there is no significant fall in temperature. At temperatures above this the material will exhibit surface glazing.
RSLE-501 also exhibits exceptional non-wetting properties when used in contact with molten aluminum making it useful in numerous molten aluminum contact applications.
Unique properties of RSLE-501 are:
* A low thermal conductivity.
* An excellent electrical insulation.
* A high chemical purity.
* An excellent resistance to corrosion (from molten metal and glass)
RSLE-501 is 100% organic free and contains no refractory ceramic fiber. It is readily machined to precision tolerances with conventional tooling.








