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：：Monolithic
Refractories for Petrochemical Industry：：
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Item |
Light weight castable |
Bubble alumina castable |
Corundum castable |
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QNJ-1.0 |
QNJ-1.5 |
LKJ-94 |
GJ-94 |
| Max. service temperature, °C, ³ |
1000 |
1350 |
1700 |
1750 |
| Al2O3, % ,
³ |
30 |
45 |
94 |
94 |
| Fe2O3, %, £ |
- |
- |
0.2 |
0.2 |
Bulk density , g/cm3,£
(110°C´24hrs) |
1.1 |
1.3 |
1.7 |
2.8 |
| Cold crushing strength, MPa,
³(110°C´24hrs) |
1.0 |
5.0 |
10 |
50 |
Thermal conductivity, W/(m×k)
£
(Average temperature at 350°C) |
0.25 |
0.4 |
0.75 |
0.5~1.8 |
Linear change after heating, %
(1300°C´3hrs)
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±0.3 |
±0.3 |
±0.3
(1500°C´3hrs) |
±0.5
(1500°C´3hrs) |
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Application |
Used as insulating lining materials for heating furnace, two-stage petrochemical furnace and various high temperature kilns. |
Used as insulating linings for many high temperature kilns. |
Used as linings of various high temperature kilns in petrochemical and metallurgy industries |
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