Silica Refractory Bricks are high-temperature fire bricks made with over 93% SiO₂, offering excellent resistance to thermal shock, strong load-bearing capacity, and exceptional performance under high temperatures.
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info@rsrefractories.comSilica Refractory Bricks are premium high-temperature bricks primarily composed of quartz, tridymite, and cristobalite, with SiO₂ content typically above 93%. They provide excellent thermal stability, a high refractoriness under load (RUL), and strong volume stability at elevated temperatures. Due to their unique mineral transformation properties, silica bricks offer outstanding resistance to deformation and mechanical wear in continuous high-temperature environments, especially above 1200°C. These properties make silica bricks ideal for the upper structure of glass furnaces, coke ovens, and hot blast stoves where long-term high-temperature operation is required.
Coke furnace silica bricks physiochemical indexes
|
Item |
JLGZ-1 |
JLGZ-2 |
JLGZ-3 |
JLGZ-4 |
|
SiO2 % ≥ |
94.6 |
95.38 |
95.6 |
96.0 |
|
Fe2O3 % ≤ |
1.12 |
1.13 |
0.27 |
0.40 |
|
Al2O3 % |
0.75 |
0.70 |
0.89 |
0.90 |
|
0.2Mpa refractoriness under load ℃ |
1640 |
1655 |
1671 |
1660 |
|
Apparent porosity % ≤ |
22.6 |
17.5 |
22.8 |
19.4 |
|
Cold crushing strength Mpa |
59.0 |
80.0 |
27.5 |
60.0 |
|
True density g/m3 |
2.31 |
2.32 |
2.33 |
/ |
|
Bulk density g/cm3 |
1.79 |
1.91 |
1.79 |
1.85 |
|
Linear change rate % |
1.18 |
1.18 |
1.26 |
1.30 |
Glass furnace silica bricks physiochemical indexes
|
Item |
BG-96a |
BG-96b |
BG-95a |
BG-95b |
|
SiO2 % ≥ |
96 |
96 |
95 |
95 |
|
Fe2O3 % ≤ |
0.8 |
1.0 |
1.2 |
1.2 |
|
0.2Mpa refractoriness under load ℃ |
≥1680 |
≥1670 |
≥1660 |
≥1650 |
|
Apparent porosity % ≤ |
22 |
22 |
22 |
22 |
|
Cold crushing strength Mpa |
35 |
35 |
35 |
35 |
|
True density g/m3 |
≤2.34 |
≤2.34 |
≤2.35 |
≤2.35 |
Silica Refractory Bricks are widely used in:
Glass furnaces: crown, sidewalls, regenerator
Coke ovens: regenerators, combustion chambers, roof
Hot blast stoves: checker bricks, combustion chamber
Ceramic and pottery kilns
Copper and non-ferrous metal furnaces
Acidic environment industrial furnaces
Insulation and structural layers for high-temperature equipment
Comprehensive Refractory Product Range
We manufacture 3 main types of refractory materials — refractory castables, high alumina cement, and refractory bricks — covering 100+ industrial furnace types worldwide.
Certified Quality and International Standards Compliance
All batches undergo strict quality control. Products comply with ISO, ASTM, and GB standards, ensuring reliable performance in high-temperature industrial applications.
Annual Production Capacity of 130,000 Tons
With a large-scale capacity of 130,000 tons per year, we guarantee stable supply and on-time delivery for long-term and large-volume projects.
Exported to 120+ Countries and 1,000+ Projects
Our products have been successfully delivered to over 120 countries, supporting more than 1,000 industrial projects, including cement, steel, incineration, glass, and petrochemical furnaces.
20+ Years of Experience in Refractory Manufacturing
With over 20 years of experience, we understand real furnace conditions and deliver materials proven in long-term industrial operations worldwide.
Professional Technical Support and Free Samples
We provide technical assistance from material selection to installation guidance, with free samples available for testing and supporting 1,000+ projects globally.
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