Lightweight silica brick (SiO₂≥92%, 1550℃ max, bulk density 1.2-1.5 g/cm³, RUL ≥1550℃) combines silica refractoriness with lightweight insulation and matches silica brick thermal expansion.
| SiO₂ Content | ≥92% |
|---|---|
| Max. Service Temp. | 1550℃ |
| Bulk Density | 1.2-1.5 g/cm³ |
| RUL (0.2MPa) | ≥1550℃ |
Lightweight silica insulating bricks are fired from siliceous lightweight raw materials: SiO₂ ≥92%, max service 1550℃, bulk density 1.2-1.5 g/cm³ and load softening point ≥1550℃. High temperature rating and thermal expansion matching silica bricks make them ideal backup insulation for glass furnace crowns and coke oven roofs. It is Henan Songrui's professional grade for glass and coking industries.
Pair with silica bricks for expansion matching; strictly follow the heat-up curve to avoid cracking during phase inversion.
Lay with matching mortar; strict heat-up schedule. Heat-up support available.
Henan Songrui New Refractory Materials Co., Ltd. (Xuanhua Town Industrial Park, Henan) is a 2024 Class A taxpayer and SRDI SME. For selection, quotation or installation, contact Manager Zheng (17513376789 / 17513376789@163.com).
Lightweight silica insulating brick combines silica refractoriness with insulation:
About 1500℃, higher than lightweight high-alumina, for glass and coke oven roof insulation.
Glass crowns, upper regenerators, coke oven roofs, hot blast stove domes.
Like silica brick, contains free quartz—heat up slowly at low temperature to avoid cracking.
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