Alumina Silica Fire Brick for Sale
Alumina silica firebrick belong to the group of alumina-silica refractory products. This kind of products are applied widely in iron, steel, glass, and nonferrous metals industries under high temperatures. Rongsheng refractory provides all kinds of alumina silica brick bricks in low price. Alumina silica fire bricks plays an important role in various high temperature industries.
Basic chemical components are silicon oxide (SiO2) and aluminum oxide (Al2O3). We have excellent alumina silica firebrick for sale at a competitive price.
High-Purity Alumina Silica Fire Bricks Properties
High Temperature Bulk Density
Excellent Capacity of Refractoriness under load
High Thermal Conductivity
Low Porosity
Excellent Abrasion Resistant Ability
Excellent Thermal Shock Performance
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 |
Three Major Categories of Alumina Silica Bricks
Semi Siliceous Products (Al2O3≤30%)
Fire Clay Products (30%≤Al2O3≤48%)
High Alumina Products (Al2O3≥48%)
Different raw materials and volumes of component determine the kind of products.
Alumina Silica Fire Brick Applications
1. Steel furnaces
2. Iron making furnaces
3. Glass kiln
4. Ceramic tunnel kiln
5. Cement kiln
