
Product features:
Featuring low thermal conductivity
Low heat capacity
High hot compressive strength
it can process accurate external dimensions and produce special shapes
Product application:
Refractory hot surface lining and other refractory material backing insulation layer, as well as refractory insulation materials for industrial furnaces such as cracking furnaces, tubular heating furnaces, conversion furnaces, hot air furnaces, ladle insulation lining, shuttle kiln tunnel kilns, ceramic roller kilns, push plate kilns, etc. in the steel, metallurgical, and chemical industries.
Technical Data of typical specification
|
Description |
BRICK 23 |
BRICK 30 |
|
Classification Temperature (ºC ) |
1300 |
1550 |
|
Chemical Composition (%) |
||
|
Al2O3 |
40 |
73 |
|
SiO2 |
51 |
24 |
|
Fe2O3 |
≤1.0 |
≤0.6 |
|
Density (kg/m³) |
600 |
1000 |
|
Modulus of Rupture (MPa) |
0.9 |
2 |
|
Cold Crushing Strength (MPa) |
1.2 |
3 |
|
Permanent Linear Change (%) |
1230ºC x 24h ≤0.3 |
1620ºC x 24h ≤0.9 |
|
Thermal Conductivity (W/m·K) |
||
|
200ºC |
0.15 |
0.28 |
|
350ºC |
0.18 |
0.35 |
|
400ºC |
0.19 |
0.38 |
|
600ºC |
0.23 |
0.4 |
package


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