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 Ceramic honeycomb used for RTO application
Cordi erite is a magnesium alumina silicate material, which has very low linear expansion, low coefficient of thermal expansion and excellent resistance to thermal shock. Cordierite also offers an excellent range of mechanical strength, porosity criteria, and excels in cost-effective extruded and dry-pressed forms.
Cordierite Honeycomb Monoliths are divided into two types: porous type and compact type.
Chemical composition
SiO2 |
Al2O3 |
MgO |
Fe2O3 |
Na2O |
K2O |
48-51% |
31-34% |
14-16% |
<0.5% |
<0.5% |
<0.5% |
Physical properties
Index |
Value |
Cordierite gross density(g/cm3) |
1.9-2.0 |
Average linear expansion(20-1000℃) (10-6/k-1) |
<2 |
Specific heat capacity(KJ/Kg) |
830-900 |
Temperature cycle resistance(K) |
300 |
Max operation Temp.(℃) |
1300 |
Thermal shock resistance(℃) |
800 |
Acid resistance(%) |
>99 |
Alkali resistance(%) |
>85 |
Water absorption(Wt%) |
22±5 |
Technical data
Spec. |
Quantity of channels |
Wall thickness (mm) |
Surface area (m2/m3) |
Free volume (%) |
Average weight (min.) (kg/m3) |
150*150*300 |
60*60 |
0.5 |
1315 |
70 |
680 |
150*150*300 |
50*50 |
0.7 |
1050 |
58 |
680 |
150*150*300 |
40*40 |
0.7 |
883 |
65 |
518 |
150*150*300 |
25*25 |
1.0 |
573 |
67 |
502 |
Application
 Used in the petroleum chemical engineering, garbage incineration, coating and paints chartered plane, also applied in the industry waster gas and waste water processing etc. |
