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High-Quality Fused Re-sintered Corundum Mullite Bricks from China Suppliers & Factory for Industrial Applications
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 and Re-sintered Corundum Mullite Brick | |
| 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 a fused re-sintered corundum mullite brick and how does it differ from ordinary corundum mullite bricks?
Fused re-sintered corundum mullite bricks are manufactured using an advanced fused re-sintering process, which creates a denser and more uniform internal structure compared to ordinary corundum mullite bricks. This results in significantly superior mechanical strength, thermal shock resistance, and service life, making them the preferred choice for demanding high-temperature industrial applications.
What is the maximum operating temperature for fused re-sintered corundum mullite bricks?
These bricks are designed for stable long-term performance at temperatures up to 1750℃. They are also compatible with oxidizing, reducing, and neutral atmospheres, making them highly versatile for various high-temperature industrial furnace environments.
How many thermal shock cycles can these bricks withstand?
Thanks to their low thermal expansion coefficient, fused re-sintered corundum mullite bricks can withstand a minimum of 20 rapid thermal shock cycles at 1100℃ (water quenching test) without cracking or spalling. This excellent thermal shock resistance ensures reliable performance in furnaces with frequent temperature fluctuations.
What industries and applications are these bricks suitable for?
Fused re-sintered corundum mullite bricks are widely applied across multiple industries, including metallurgy (hot blast furnace regenerators, electric arc furnace side walls, ladle linings), glass manufacturing (melting furnace regenerator checker bricks, throats, side walls), chemical industry (reactor linings, conversion furnaces), and building materials production (ceramic roller kilns, cement kiln preheaters, brick kiln linings).
What are the key physical and chemical specifications of these bricks?
The bricks are available in two grades: Al₂O₃ ≥80% and Al₂O₃ ≥85%. Key parameters include bulk density ≥2.70–2.85 g/cm³, apparent porosity ≤18%, cold crushing strength ≥100 MPa, and refractoriness under load ≥1700℃ (0.2MPa, 0.6%). The Fe₂O₃ content is controlled at ≤0.3% to ensure high purity and performance.
Can I request custom sizes or specifications for my specific furnace application?
Yes, we support customized orders to meet specific project requirements. Whether you need particular dimensions, shapes, or chemical compositions tailored to your furnace design, our engineering team is ready to provide professional consultation and solutions. Please contact us via the inquiry form above to discuss your specific needs and receive a detailed quotation.