+86-15527482889
Hot Products
0102030405
High-Quality Fused Re-sintered Corundum Mullite Bricks from China Suppliers - Durable Industrial Solutions from Our Factory
Core Advantages
Advanced Fused Re-sintering Craft
Adopts state-of-the-art production technology, forming a dense and uniform internal structure that enhances product stability and durability, far exceeding ordinary corundum mullite bricks in service life.
Excellent Thermal Shock Resistance
Low thermal expansion coefficient, can withstand frequent rapid temperature changes (1100℃ water quenching ≥20 times) without cracking or spalling, adapting to complex working conditions of industrial furnaces.
High Strength & Dense Structure
Room temperature compressive strength ≥130MPa, apparent porosity ≤18%, ensuring good impermeability and load-bearing capacity, preventing molten media penetration and structural deformation.
Superior Erosion & Wear Resistance
Rich in high-purity Al₂O₃ and mullite phase, effectively resisting corrosion from molten slag, high-temperature gas and abrasion, maintaining stable performance in harsh working environments.
Wide Temperature Adaptability
Stable performance at 1750℃ for long-term use, suitable for high-temperature zones of various industrial furnaces, with strong compatibility for oxidizing, reducing and neutral atmospheres.
Product Parameters
| Item | Fused & Re-sintered Corundum Mullite Brick (Grade A) | Fused & Re-sintered Corundum Mullite Brick (Grade B) |
|---|---|---|
| Al₂O₃ % | ≥80 | ≥85 |
| SiO₂ % | ≤19 | ≤14 |
| Fe₂O₃ % | ≤0.3 | ≤0.3 |
| Bulk Density (g/cm³) | ≥2.70 | ≥2.85 |
| Apparent Porosity % | ≤18 | ≤18 |
| Cold Crushing Strength (MPa) | ≥100 | ≥100 |
| Refractoriness Under Load ℃ (0.2MPa, 0.6%) | ≥1700 | ≥1700 |
Detailed Application Scenarios
Our fused re-sintered corundum mullite bricks are widely used in high-temperature industrial furnaces and kilns, providing reliable and durable lining solutions for the following industries:
-
1
Metallurgical Industry
◎ Hot blast furnace regenerator, electric arc furnace side wall, ladle upper lining, and other high-temperature load-bearing parts.
-
2
Glass Industry
◎ Glass melting furnace regenerator checker brick, throat, side wall upper part, and other corrosion-prone high-temperature zones.
-
3
Chemical Industry
◎ Chemical reactor lining, sulfuric acid plant conversion furnace, phosphate fertilizer furnace, and other high-corrosion high-temperature equipment.
-
4
Building Materials Industry
◎ Ceramic roller kiln high-temperature zone, brick kiln lining, and refractory lining of cement kiln preheater.
Conclusion
Contact us now for a quote and experience the difference of working with the best in the business.
Frequently Asked Questions
-
What is fused re-sintered corundum mullite brick?
Fused re-sintered corundum mullite brick is a high-performance refractory product manufactured using advanced fused re-sintering technology. It features a dense, uniform internal structure composed of high-purity Al₂O₃ and mullite phases, delivering superior thermal stability, mechanical strength, and chemical resistance compared to ordinary corundum mullite bricks.
-
What is the maximum service temperature for these bricks?
Fused re-sintered corundum mullite bricks maintain stable performance at temperatures up to 1750℃ for long-term continuous use. The refractoriness under load (0.2MPa, 0.6%) reaches ≥1700℃, making them suitable for the most demanding high-temperature zones in industrial furnaces.
-
How does the thermal shock resistance compare to standard refractory bricks?
Thanks to its low thermal expansion coefficient, fused re-sintered corundum mullite brick can withstand a minimum of 20 cycles of 1100℃ water quenching thermal shock without cracking or spalling. This significantly outperforms standard refractory bricks, making it ideal for furnaces with frequent temperature fluctuations.
-
In which industries are fused re-sintered corundum mullite bricks commonly used?
These bricks are widely applied across multiple industries including metallurgy (hot blast furnaces, electric arc furnaces, ladles), glass manufacturing (regenerator checker bricks, furnace throats), chemical processing (reactors, conversion furnaces), and building materials production (ceramic roller kilns, cement kiln preheaters).
-
What Al₂O₃ content grades are available?
We offer two main grades: Grade A with Al₂O₃ content ≥80% (bulk density ≥2.70 g/cm³) and Grade B with Al₂O₃ content ≥85% (bulk density ≥2.85 g/cm³). Both grades provide cold crushing strength ≥100MPa and apparent porosity ≤18%, ensuring reliable impermeability and structural integrity.
-
Can these bricks be used in both oxidizing and reducing atmospheres?
Yes. Fused re-sintered corundum mullite bricks demonstrate excellent compatibility with oxidizing, reducing, and neutral atmospheres. Their chemical stability and high alumina content provide strong resistance to corrosion from molten slag, high-temperature gases, and abrasive media across a wide range of industrial operating conditions.