Latest Products
Contact Us
- No.92 Jianshe West Road, Zhongyuan District, Zhengzhou, Henan,China.
- albert@literefractory.com
- +8619937887923
Alumina Silica Fire Brick
Alumina silica fire brick refers to refractory products containing aluminum oxide (Al₂O₃) and silicon oxide (SiO₂).
Description
what is Alumina silica fire brick?
Alumina silica fire brick refers to refractory products containing aluminum oxide (Al₂O₃) and silicon oxide (SiO₂).
The definition of alumina silica fire brick emphasizes its composition characteristics, that is, it contains a certain proportion of aluminum oxide and silicon oxide. This kind of refractory brick is usually classified as high-alumina brick, in which the content of aluminum oxide determines its performance grade. For example, the aluminum oxide content of secondary high-alumina brick is between 60% and 75%, while the content of silicon oxide is between 30% and 40%. This type of refractory brick is widely used in high-temperature industrial fields due to its good refractory properties and corrosion resistance.
alumina silica fire brick price
Chemical composition of alumina silicate fire brick
| Element | Chemical formula | Content range (%) |
|---|---|---|
| Alumina | Al₂O₃ | 20 - 80 |
| Silicon dioxide | SiO₂ | 10 - 70 |
| Iron Oxide | Fe₂O₃ | 0 - 15 |
| Calcium Oxide | CaO | 0 - 5 |
| Magnesium Oxide | MgO | 0 - 5 |
| Sodium oxide | Na₂O | 0 - 2 |
| Potassium Oxide | K₂O | 0 - 2 |
Physical properties of alumina silicate brick
| Performance Indicators | Numerical range | illustrate |
|---|---|---|
| density | 2.4 - 3.0 g/cm³ | The mass per unit volume of a material affects its strength and heat resistance. |
| Water absorption | 3% - 15% | The brick's ability to absorb water affects its fire resistance. |
| Refractoriness | 1400 - 1700 °C | The ability of a material to retain its shape and strength at elevated temperatures. |
| Compressive strength | 40 - 90 MPa | The ability of a material to withstand compressive loads determines its application. |
| Volume expansion rate | 0.2% - 1.5% | The percentage change in volume of a material under high temperature. |
| Thermal conductivity | 0.5 - 1.5 W/(m·K) | The material's ability to conduct heat energy affects the insulation effect. |
Common sizes and shapes of alumina silica brick
Rectangular refractory bricks: 230x114x65mm, 230x230x65mm, 250×123×65mm, 250×123×65-55mm
Curved refractory bricks: 45-degree arc with a radius of 115mm
Irregular refractory bricks: triangle, trapezoid, etc.
Standard refractory brick size: 230mm×114mm×65mm refractory bricks are called T-3 refractory bricks
Advantages of alumina silica fire brick
- High refractoriness: The refractoriness of high alumina refractory bricks is high. With the increase of alumina content in the products, the refractoriness increases. It is generally not less than 1770℃. If the aluminum content of corundum products is greater than 95%, the refractoriness can be as high as 1800℃ or more.
- Good slag resistance: Due to the high and neutral alumina content in the products, high alumina refractory bricks have strong corrosion resistance to acidic or alkaline slag.
- Strong thermal stability: High alumina refractory bricks have good thermal stability and can withstand drastic changes in temperature without damage.
- Wide range of application: High alumina refractory bricks are widely used in the steel industry, non-ferrous metal industry and other industries, such as reverberatory furnaces of smelting equipment, furnace linings in contact with aluminum liquid and other parts.
alumina silica fire brick for sale
High alumina silica brick for kiln
1. Application scenarios: high-temperature industrial furnaces; parts in contact with high-temperature liquids; parts prone to erosion and wear
2. Usage: correct installation; preheating treatment; regular maintenance
3. Precautions: avoid sudden cooling and heating; choose the right brick type; quality assurance
Welcome to buy Henan Lite aluminum silica fire brick
Hot Tags: alumina silica fire brick, China alumina silica fire brick suppliers, manufacturers, factory, steel furnace, pourable refractory, Fire Clay Brick, laboratory furnace, high temp firebrick mortar mix, vertical industrial rotary kiln
You Might Also Like
