Thermal Shock Resistant Corundum Mullite Bricks are high-performance refractory products made from premium-grade corundum and mullite. They are designed to withstand extreme temperatures, rapid heating and cooling cycles, and harsh chemical environments. With an alumina content ranging from 70% to 90%, these bricks deliver exceptional thermal stability, high mechanical strength, and excellent slag resistance, making them a reliable choice for various industrial furnaces and kilns.
Technical Specifications
| Item | Typical Value |
|---|---|
| Al₂O₃ Content | 70–90% |
| Bulk Density | 2.6–2.9 g/cm³ |
| Apparent Porosity | ≤ 18% |
| Cold Crushing Strength | ≥ 70 MPa |
| Refractoriness Under Load (0.2MPa) | ≥ 1700°C |
| Thermal Shock Resistance | ≥ 25 times (1100°C water quench) |
Key Features
Excellent Thermal Shock Resistance – Maintains structural integrity during rapid temperature changes.
High Refractoriness – Withstands continuous service temperatures above 1600°C.
Superior Mechanical Strength – Resists abrasion and mechanical stress in high-load conditions.
Chemical and Slag Resistance – Performs well in corrosive environments such as steelmaking and glass melting.
Low Porosity – Reduces slag penetration and prolongs service life.
Typical Applications
Steel Industry – Ladle lining, sliding gate systems, tundish working lining.
Ceramic Industry – Kiln furniture and lining for high-temperature firing.
Glass Industry – Regenerator checker bricks and furnace crowns.
Non-Ferrous Metallurgy – Smelting furnace lining and reaction zones.
Other Thermal Equipment – Burners, hot blast stoves, and thermal reactors.
Available Shapes & Sizes
Standard straight bricks
Arch bricks
Keys and wedges
Custom molded shapes according to drawings
Packing and Shipping Details
Packaging: Strong fumigation-free wooden pallets with plastic wrapping to ensure safety during transportation.
Delivery Time: 15–25 days after order confirmation.
Shipping: Worldwide delivery by sea, land, or air.
Frequently Asked Questions (FAQ)
Q1: What are Thermal Shock Resistant Corundum Mullite Bricks made of?
They are made from high-purity corundum (Al₂O₃) and mullite as the main crystalline phases, ensuring excellent thermal shock resistance, high mechanical strength, and superior chemical stability.
Q2: What is the maximum working temperature?
These bricks can withstand continuous service temperatures above 1600°C, depending on the specific grade and composition.
Q3. Where can these bricks be used?
They are ideal for kiln linings, steel ladles, glass furnaces, ceramic kilns, non-ferrous metal smelting furnaces, and other high-temperature industrial equipment.
Q4: Can you produce customized shapes and sizes?
Yes. We can manufacture standard straight bricks, arch bricks, wedges, and other special shapes according to your drawings and requirements.
Q5: How do these bricks perform in thermal shock conditions?
They have excellent resistance to rapid heating and cooling cycles, with a thermal shock resistance of more than 25 cycles (1100°C water quench).
