Corundum Mullite Plates are manufactured using advanced sintering technology, resulting in a fine-grained, high-density structure that maximizes durability and thermal stability. The unique combination of corundum (high-alumina content) and mullite (excellent thermal shock resistance) provides a balanced performance profile, making these high alumina refractory plate suitable for applications ranging from 1400°C to 1700°C. ullite-based ceramic boards are available in various thicknesses (10mm to 50mm) and dimensions (customizable up to 500mm x 500mm), ensuring compatibility with diverse industrial setups.
Technical Specifications of Mullite Refractory Plates
| Item | Unit | G85 | G95 |
| Chemical Composition | |||
| Alumina (Al₂O₃) | % | 82.1 | 90.5 |
| Silica (SiO₂) | % | 16.9 | 8.3 |
| Iron Oxide (Fe₂O₃) | % | 0.15 | 0.1 |
| Apparent Porosity | % | 19.3 | |
| Bulk Density | g/cm³ | 2.7 | 18 |
| Room Temperature Compressive Strength | MPa | 73 | 2.83 |
| Room Temperature Bending Strength | MPa | 11.2 | 91 |
| Load Softening Start Temperature (0.2MPa) | °C | 1650 | 12.1 |
| Thermal Shock Resistance at 1100°C Water Quenching | Times | >53 | 1760 |
| Refractoriness | °C | >1780 | >1790 |
Product Usage:
Corundum Mullite Plates are indispensable in industries requiring robust thermal protection:
Steel & Non-Ferrous Metal Processing: Used in ladle linings, tundish covers, and blast furnace components to withstand molten metal splashes and slag corrosion.
Glass & Ceramics Manufacturing: Furnace lining tile for kiln furniture (shelves, setters) due to their high refractoriness and low thermal expansion.
Petrochemical & Incineration: Employed in reformer furnaces, cracking units, and waste incinerators to resist high-temperature gas erosion.
Power Generation: Applied in boiler linings and burner nozzles for coal-fired plants, ensuring durability in extreme thermal cycles.
Aerospace & Defense: Used in thermal barriers and heat shields for high-temperature aerospace components.
Product Advantages
Exceptional Thermal Shock Resistance – The low thermal expansion coefficient of mullite prevents cracking during rapid temperature fluctuations, extending service life in cyclic heating applications.
High Mechanical Strength – With a cold crushing strength (CCS) exceeding 100MPa, the plates resist deformation and mechanical wear in abrasive environments.
Superior Chemical Stability – Resistant to corrosion from molten metals (e.g., aluminum, copper), slag, and acidic/alkaline atmospheres, making them ideal for foundries and chemical reactors.
Low Thermal Conductivity – Reduces heat dissipation, improving energy efficiency in furnaces and kilns.
Customizable Dimensions & Surface Finishes – Available in standard and custom sizes, with options for polished, grooved, or drilled surfaces to meet specific installation requirements.
Long Service Life – The dense, non-porous structure minimizes penetration by molten materials, reducing erosion and maintenance costs.
Product technology:
Corundum Mullite Plates are produced through a meticulously controlled process:
Raw Material Selection – High-purity alumina and silica are blended with sintering aids to optimize mullite formation.
Forming – The mixture is pressed isostatically or by dry pressing to achieve uniform density and minimal internal defects.
Sintering – Fired at temperatures exceeding 1600°C in tunnel kilns to ensure complete mullitization and densification.
Precision Machining – Post-sintering, plates are cut, ground, or polished to meet exact dimensional tolerances
Why Choose Us?
23+
years experience focus on refractories field
2 plants
with 3 sets of tunnel kilns for 120,000 tonnes capacity
3 QC
Labs Technology Centres
120+ employees
with ISO9001,TUV,SGS,Intertek certifications
100+
abroad customers in 50+ countries
20+
major industry furnace projects yearly
Packing
To prevent damage during transit, Corundum Mullite ceramic setter boards are securely packed in:
Wooden Crates with foam cushioning for large orders.
Corrugated Cartons with edge protectors for smaller shipments.
Waterproof Wrapping to guard against moisture.
Custom packaging solutions (e.g., palletization, shock-resistant cases) are available upon request.
FAQ
Hot Tags: corundum mullite plate, China corundum mullite plate manufacturers, suppliers, factory, ceramic pumps for industry, refractory bricks, Microporous Board, Silica Bricks, ceramic valves for industry, industrial ceramic bearings
