Refractoriness (℃): | 1580< Refractoriness< 1770 |
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Feature: | Long Time Materials, Instant Materials |
Type: | Refractory Material |
Shape: | Pipe |
Material: | Mullite |
Using Purpose: | Ceramic Electric Heater |
Samples: |
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Customization: |
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Suppliers with verified business licenses
Refractory Mullite Cordierite Ceramic Electric Heating Insulating Parts characterized by high purity, high density, high strength and good thermal shock resistance, is mainly used as high temperature (1350-1650oC) kiln linings or kiln furniture in ceramics.
1). low thermal expansion
2). large specific heat capacity
3). high specific surface area
4). low pressure drop
5). small thermal resistance
6). good thermal conductivity
7). good heat-shock resisting ability
Name |
Alumina |
Dense Cordierite |
Porous Cordierite |
Cordierite-Mullite |
Mullite |
Corundum mullite |
|
Density(g/cm3) |
2.0~2.3 |
2.1 ~2.5 |
1.5 ~1.9 |
1.8~2.3 |
2.0 ~2.5 |
2.3 ~2.7 |
|
Coefficient of heat expansion(×10-6K-1)(20~800°C) |
≤5 |
≤3.5 |
≤3.0 |
≤3.5 |
≤5 |
≤6 |
|
Specific Heat (J/Kg.K)(20~1000°C) |
900~1150 |
900~1100 |
900~1100 |
900~1150 |
1000~1150 |
1100~1300 |
|
Thermal Conductivity (W/m.k) (20~1000°C) |
1.5~2.0 |
1.5~2.5 |
1.2~1.8 |
1.5~2.0 |
1.5~2.0 |
1.5~2.5 |
|
Impact Thermal Resistance(°C/min) |
≥300 |
≥300 |
≥350 |
≥350 |
≥350 |
≥300 |
|
Max. Working Tem.(°C) |
1350 |
1300 |
1300 |
1320 |
1450 |
1550 |
|
Water absorption(%) |
15-25 |
≤2 |
15~25 |
15 ~25 |
15~25 |
15 ~25 |
|
Compressive strength(MPa) |
≥28 |
≥28 |
≥25 |
≥25 |
≥28 |
≥30 |
|
Chemical composition (%) |
Al2O3 |
55 ~65 |
25 ~38 |
28 ~38 |
40~52 |
60 ~70 |
70 ~80 |
SiO2 |
25~35 |
50 ~60 |
45 ~55 |
45 ~55 |
25 ~35 |
15 ~25 |
|
MgO |
1~3 |
5 ~10 |
11 ~14 |
7~9 |
0 ~1 |
0 ~2 |
|
others |
<5 |
<5 |
<5 |
<5 |
<5 |
<5 |
Suppliers with verified business licenses