Product detail
Silica Insulation Brick
Composition:SiO2
Application:Heat-insulating layer of various of high temperature furnaces
Capacity:800 tons per month
Color:White
Size:As your requirements
Raw Material:Quartz sand
Package:Export wooden pallets
Product Introduction
Silica insulation brick refers to a kind of refractory products made from silica as the main material and with SiO2 content not less than 91%.The main mineral composition of silica insulation brick is phosphorite and cristobalite.
Features
1. High refractoriness under load.
2. Energy-saving.
3. Less heat radiation loss.
4. Low thermal conductivity.
Application
Silica insulation brick has excellent fire resistance, with only small residual expansion, and good thermal stability. They are suitable for industrial furnaces such as coke ovens, hot blast furnaces, glass furnaces, and carbon furnaces.
Product Parameters
| Item | Silica Insulation Brick | |||
| GGR-1.0 | GGR-1.10 | GGR-1.15 | GGR-1.20 | |
| SiO2(%) | >=91 | |||
| Bulk Density (g/cm3) | 1.0 | 1.10 | 1.15 | 1.20 |
| Cold Crushing Strength (MPa) | >=2 | >=3 | >=5 | >=5 |
| Refractoriness Under Load (0.2MPa)(℃) | 1400 | 1420 | 1500 | 1520 |
| Permanent Linear Change (1550℃*2h)(%) | — | — | 0.5 | 0.5 |
| Permanent Linear Change (1450℃*2h)(%) | 0.5 | 0.5 | — | — |
| Coefficient of Thermal Conductivity,Average Temperature 350+10℃ w/(m·k) | 0.55 | 0.60 | 0.65 | 0.70 |
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