Features of light mullite:
1. Low heat conduction and low heat capacity
2. high purity and low impurity content
3. It is resistant to high temperature and can directly contact with flame.
4. It has high strength and excellent thermal shock resistance. It is suitable for hot face lining and backing of various industrial furnaces in metallurgy, petrochemical, building materials, ceramics, machinery and other industries, such as cracking furnace, conversion furnace, heating device, refining device, regeneration device, hot blast furnace, heating furnace, soaking furnace, heat treatment furnace, resistance furnace, tunnel kiln, roller kiln, bell cover kiln, glass tank kiln, etc
Normal size: 230 × 114 × 65mm
|
Item
|
performance index
|
|
001
|
002
|
003
|
004
|
005
|
|
Classification Temperature (℃)
|
1260
|
1350
|
1430
|
1540
|
1650
|
|
bulk density(g/cm3)
|
0.6
|
0.8
|
0.8-1.0
|
0.9-1.1
|
1.0-1.2
|
|
compressive strength(Mpa)
|
1.3
|
2.0
|
3.0
|
3.5
|
3.5
|
|
Linear Change after Heating %
（℃xh）
|
1250×12
-0.5
|
1320×12
-0.5
|
1400×12
-0.5
|
1510×12
-0.9
|
1600×12
-0.9
|
|
Thermal conductivity W/m.k(350±25℃）
|
0.22
|
0.26
|
0.26
|
0.32
|
0.41
|
|
AL2O3
|
50
|
55
|
60
|
65
|
70
|
|
Fe2O3
|
1.2
|
1.2
|
1.2
|
1.0
|
1.0
|
