Your Corundum Mullite Challenge, Our Complete Solution
Selecting the right refractory material is only the first step. The real challenge lies in making that material perform consistently, safely, and cost-effectively, within the specific demands of your operation. That is where REBO goes beyond what a standard supplier can offer.
From the first technical consultation to post-installation review, REBO is structured to be your long-term refractory partner not a one-time vendor.
Understanding Kiln Operating Conditions
REBO’s approach to Corundum Mullite Brick begins with a detailed understanding of your process. Before a single brick is specified, our technical team can assist in evaluating your furnace geometry, operating temperature profile, thermal cycling frequency, and the chemical environment your lining will face. This diagnostic stage allows us to recommend not just a product, but a complete material strategy.
Complete System Solution
Where many suppliers stop at delivery, REBO refractory continues. Our support extends through material specification, joint design, expansion allowance planning, and compatibility with surrounding refractory layers. This systems-level thinking reduces the risk of premature lining failure, unplanned shutdowns, and costly emergency replacements giving your operation greater reliability and lower total cost of ownership.
REBO One-Stop Refractory Solutions
Backed by a global supply network spanning over 50 countries and a direct-from-factory supply model, we ensure stable and efficient delivery at competitive prices. From material selection consultation to project implementation, we provide our customers with end-to-end, one-stop refractory material solutions throughout the entire process.
Specifications of Corundum Mullite Bricks
Corundum mullite brick is a premium-grade refractory brick manufactured from high-purity corundum (α-Al₂O₃) and mullite (3Al₂O₃·2SiO₂) as primary raw materials. With an Al₂O₃ content typically ranging from 72% to over 90%, corundum mullite bricks demonstrate outstanding features. Please see the parameters.
| Item/Index | Mullite Bricks | Resintering Fused Mullite Bricks | Mullite-Corundum Bricks | Corundum-Mullite Bricks |
|---|---|---|---|---|
| Al2O3 | ≥70% | ≥75% | ≥80% | ≥90% |
| SiO2 | ≤25% | ≤23% | ≤18% | ≤8% |
| Fe2O3 | ≤0.5% | ≤0.5% | ≤0.5% | ≤0.3% |
| Apparent Porosity | ≤17% | ≤14% | ≤19% | ≤18% |
| Bulk Density | ≥2.55g/cm | ≥2.65g/cm | ≥2.70g/cm | ≥2.90g/cm |
| Cold Crushing Strength | ≥90MPa | ≥100MPa | ≥80MPa | ≥100MPa |
| Initial Refractoriness Under Load | ≥1630℃ | ≥1700℃ | ≥1650℃ | ≥1700℃ |
Customization, Supply, Support & Logistics
Flexible Customization
REBO manufacture corundum mullite bricks to your exact specifications. Submit your drawing or describe your requirements, we handle custom shapes refractory brick lining, special Al₂O₃ grades (72%–99%), non-standard dimensions, and specific performance parameters. Prototype samples available before bulk production.
Supply Chain Efficiency
Vertically integrated production from raw material to finished product. Our in-house raw material processing and large inventory of base materials eliminates third-party supply delays. For regular customers, we offer scheduled production plans and safety stock services to ensure supply continuity.
Full Lifecycle Support
Our engineering team supports your project from lining design consultation and material selection, through installation guidance and curing schedule, to post-service analysis and life extension recommendations. We help you optimize refractory performance throughout the entire furnace campaign.
Key Advantages of Corundum Mullite Bricks
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Ultra-High Temperature ResistanceMaintains structural integrity and load-bearing capacity at service temperatures up to 1750°C, ideal for the most demanding thermal environments.
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Excellent Thermal Shock StabilityThe mullite phase accommodates rapid temperature cycling without cracking. Withstands 30+ water quench cycles at 1100°C critical for intermittent kilns.
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Superior Slag & Corrosion ResistanceHigh Al₂O₃ content provides strong resistance to acid slag, alkali attack, and iron oxide erosion, significantly extending lining service life.
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High Mechanical StrengthCold crushing strength ≥ 150 MPa (CM-90 grade) ensures resistance to mechanical impact during operation and installation.
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Stable Volume BehaviorLow and reversible thermal expansion minimizes joint opening and reduces the risk of heat leakage, improving overall energy efficiency of furnace systems.
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Low Creep at High TemperaturesCreep rate below 0.2% at 1600°C/50h ensures dimensional stability under prolonged mechanical loads — minimizing structural deformation in furnace roofs and arches.
Application Industries & Specific Positions
Blast furnace hot blast stove dome & checker;
Steel ladle lining & slag zone;
Torpedo car lining;
Electric arc furnace roof & wall
RH degasser inner vessel.
Glass melting furnace crown & superstructure;
Port neck & regenerator checker;
Throat and canal lining;
Float glass tin bath.
Waste incineration combustion chamber;
Boiler furnace wall and burner zone;
Coal gasification high-temp zone;
Biomass energy furnace lining.
Rotary kiln transition zone;
Preheater cyclone tower lining;
Clinker cooler inlet zone;
Lime kiln combustion chamber.
Ethylene cracking furnace radiant tube support;
Ammonia reformer tube lining;
Gasification reactor inner lining;
Sulfur recovery furnace.
Tunnel kiln car furniture;
Roller kiln beam & roller support;
Kiln crown & side wall lining;
Saggar and setter plates.
Corundum Mullite Bricks Across Various Industries
Proven Strength & Capability of REBO Factory
From raw material sourcing to final delivery, every REBO corundum mullite brick is built to perform in the most demanding high-temperature environments. As corundum mullite refractory brick manufacturers, REBO has strong manufacturing, design, and solution capacity.
We source and process high-purity tabular alumina, fused corundum, and synthetic mullite in-house, ensuring raw material traceability and quality control.
Tunnel kilns with precise temperature control up to 1800°C, ensuring uniform sintering and consistent product quality batch after batch.
On-site testing for chemical composition (XRF), density, porosity, CCS, RUL, thermal shock, and creep full certificate provided with each shipment.
10+ senior engineers and material scientists continuously improving formulations for new application requirements and custom product development.
CNC precision machining for complex shapes, tight-tolerance profiles, and special bricks per customer drawings achieving dimensional accuracy.
Shipped to 50+ countries. Familiar with export documentation, container loading, and compliance requirements for Europe, Middle East, Asia, and the Americas.
FAQs of Corundum Mullite Bricks
Q: What Is The Difference Between Corundum Mullite Brick And Standard High Alumina Brick?
Q: Can You Supply Bricks To Match Our Existing Refractory Specification Or International Standard?
Q: How Long Does Delivery Take And What Shipping Options Are Available?
Q: What Quality Certificates And Test Reports Do You Provide?
Q: Which Industries Use Corundum Mullite Brick Most Frequently?
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