High Temperature Insulation Refractory Silica Brick , Blast Furnace Refractories
Description:
Introducing fused silica bricks, highly specialized ceramic units engineered for exceptional thermal stability and resistance in glass melting and blast furnace environments. These acid-resistant silica refractory bricks combine advanced heat tolerance with dimensionally stable structure, making them indispensable in high-temperature industrial applications.
- It is mainly made of top class silica, via shaping and burning under the high temperature,
possesses high temperature resistant,high strength and low impurities,etc. - It is mainly used for blast furnaces and hot blast stove.
The most competitive price,good quality,safty packing,prompt delivery time,and excellent after-sales services.
Lighter weight,Low thermal conductivity,low impurities,high insulating properties,high CCS and exact tolerance.
Technical Highlights & Unique Features
Ultra-High Purity Composition: Constructed predominantly from high-purity silica, fused silica bricks offer extremely low thermal expansion and outstanding structural consistency.
Nearly Zero Thermal Expansion: The negligible volumetric changes witnessed under rapid heating or cooling distinguish silica refractory brick as effectively transparent to thermal shock—ideal for kiln repairs without preheating.
Impressive Acid Resistance & Softening Threshold: Designed to withstand molten glass and acidic slags, silica insulation brick maintains rigidity even under mechanical load at elevated temperatures.
Custom Fabrication Precision: These bricks are available in standard sizes and complex custom shapes—such as arches, nozzles, or probing ports—tailored to fit precise furnace lining designs.
Light weight silica brick:
1) Silicon oxide is above 95%.
2) Good acid erosion resistance.
3) High softening point
Applications:
Light weight silica bricks are primarily used for furnaces and kilns in metallurgy, steel, power, chemical industry, and electric power and machine building etc areas
Utilized in blast furnace environments, especially in exposed zones where extreme thermal shock resistance from silica insulation brick prolongs service life.
Ideal for hot repair scenarios, where fused silica bricks offer fast deployment due to their robust heat resistance and structural clarity.
Specifications:
| | LA-1.00 | LA-1.10 | LA-1.15 | LA-1.20 |
| SiO2 min | min91% | min91% | min91% | min91% |
| Bulk Densityg/cm3 | 1.00 | 1.10 | 1.15 | 1.20 |
| C.C.strengthMpamin | 2.0 | 3.0 | 5.0 | 5.0 |
| Liner change after reheatingmax | 1450 x 2h 0.5% | 1550 x 2h 0.5% |
| Refractoriness under load (0.1Mpa) (min) | 1400 | 1420 | 1500 | 1520 |
| Thermal conductivity coefficient (W/m.k) (max) | 0.55 | 0.60 | 0.65 | 0.70 |
Competitive Advantage:
1.Best price, make the products competitive in your market
2.Abundant Experience.
3.Strict Quality Control. Meet clients'quality requirement.
4.Large stocks. Guarantee prompt delivery.
5.Professional Packing. Avoid damage and secure the goods in transportation
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