| Brand Name: | LT |
|---|---|
| SiO2 Content (%): | 94 |
| Material: | silica |
| Shape: | Brick |
| Place of Origin: | China (Mainland) |
| Bulk density: | 1.0-1.2 |
Quick Details
Specifications
Features:
1.Silica over91%, bulk density below1.2g/cm3
2.Compressive strength, slag-resistance, corrosion resistance lower than ordinary silica brick.
3.Thermal shock resistance increases.
4.Raw material silica, morethan 90%,0.5-1.0mm. Add flammable substances to the mixture or using gas evolution method to form porous structure,fired.
Application:
1.Used as insulation bricks, net direct contact with melting materials.
2.Max using temperature can reach1200 ~ 1550°C, widely applied in glass melting furnace.
Phycal and chemical index:
|
Item |
Properties |
|||
|
QG-1.2 |
QG-1.1 |
QG-1.0 |
||
|
SiO2,% |
91 |
91 |
91 |
|
|
Refractoriness,°C |
1670 |
1680 |
1680 |
|
|
Softening temperature under load,°C, |
1560 |
1560 |
1480 |
|
|
Cold Crushing strength MPa, |
3.5 |
3.5 |
3.5 |
|
|
True density,g/cm3 |
2.39 |
2.39 |
2.39 |
|
|
Bulk density,g/cm3 |
1.2 |
1.1 |
1.0 |
|
|
W/(m·k)350±25°C), Coefficient of thermal conductivity W/(m·k)average temperature 350±25°C) |
0.65 |
0.6 |
0.55 |
|
|
Permanent linear change,%, |
1550°CX 2 H |
0.5 |
0.5 |
— |
|
1450°CX 2 H — |
— |
0.5 |
||
|
Application |
All industrial furnace |
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