Corundum Ceramic Honeycomb for Heating Furnace

Physical Properties:

1) Compressive strength

2) Porosity/water absorption

3) Bulk density

4) Coefficient of Thermal Expansion

5) Thermal Conductivity

1.5…1.6 W/mk at temperature 25C…600C

6) Specific Heat Capacity

At:100C/200C/300C 
800KJ/Kg950KJ/Kg2000KJ/Kg

7) Continuous High Temperature Durability

Maximum shrinkage of length after 100 hours at 1200C 
200MCI 400MCI
Maximum:0.5% 0.1%

8) High Temperature Stability

Maximum shrinkage after 100 hours at 1450C 
200 MCI400 MCI
Maximum2.0%2.5%

9) Gas Flow Resistance

Flow speed 16m/s200 MCI400 MCI
Pressure drop {10-2mmAg/mm} 60130

10) Structural Integrity to Thermal Shock

(Cooling with water)
Cracks start at approx. 800C 
No destruction of ceramic bodies until approx. 1180C

11) Softening temperature

Definition: temperature, at which the instantaneous rate of thermal expansion is zero.

Procedure: analogous to coefficient of thermal expansion; determination with extrapolation.

Minimum: 1380C

Chemical Composition: