Alumina Silica Fire Bricks are high-temperature resistant refractory bricks made from alumina and silica materials, offering excellent thermal stability, moderate strength, and resistance to chemical attack.
Chat on WhatsApp：
+8615038278221Email Us：
info@rsrefractories.com
Alumina Silica Fire Bricks are versatile refractory bricks composed mainly of Al₂O₃ and SiO₂, with the alumina content typically ranging from 30% to 55%. They are produced from high-quality fire clay, bauxite, and silica materials through high-temperature firing. These bricks provide excellent thermal shock resistance, good mechanical strength, and strong resistance to slag and acidic corrosion. Thanks to their stable mineral structure, such as mullite and fireclay phases, Alumina Silica Fire Bricks deliver reliable performance in industrial furnaces operating under medium to high temperatures. They are widely used as lining materials in numerous thermal equipment across steel, cement, petroleum, and ceramic industries.
Alumina Silica Fire Brick Phycial & chemical index
|
Item |
RSAS60 |
RSAS70 |
RSAS75 |
RSAS80 |
|
AL2O3(%) |
≥60 |
≥70 |
≥75 |
≥80 |
|
SIO2(%) |
32 |
22 |
20 |
≥18 |
|
Fe2O3(%) |
≤1.7 |
≤1.8 |
≤1.8 |
≤1.8 |
|
Refractoriness °C |
1790 |
>1800 |
>1825 |
≥1850 |
|
Bulk density,g/cm3 |
2.4 |
2.45-2.5 |
2.55-2.6 |
2.65-2.7 |
|
Softening temperature under load |
≥1470 |
≥1520 |
≥1530 |
≥1550 |
|
Apparent porosity,% |
22 |
<22 |
<21 |
20 |
|
Cold Crushing strength Mpa |
≥45 |
≥50 |
≥54 |
≥60 |
Alumina Silica Fire Bricks are widely applied in:
Industrial furnaces and kilns
Steel industry: blast furnaces, hot blast stoves, reheating furnaces
Cement rotary kilns, preheater systems
Ceramic kilns and tunnel kilns
Petrochemical heaters and reformer furnaces
Boilers and incinerators
Glass industry auxiliary furnaces
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.
Fill out the form to request a free, detailed quote.
