Zhengzhou Zhongkeda Refractory Materials Co., Ltd
Corundum Brick for Severe Operating Conditions
Corundum brick is a high-alumina refractory brick made primarily from high-purity alumina or corundum raw materials. It is designed for demanding furnace and kiln applications where high refractoriness, wear resistance and resistance to chemical attack are required.
Compared with conventional high alumina bricks, corundum bricks are suitable for more severe operating conditions where higher purity and stronger performance are required.
Where Is Corundum Brick Used?
Corundum bricks are used in high-temperature industrial equipment and furnace areas exposed to severe thermal, mechanical or chemical conditions.
• Steel & Metallurgical Furnaces：For high-temperature and high-wear areas in steelmaking and metallurgical equipment.
• Industrial Furnaces：Suitable for furnace linings exposed to high temperatures, abrasion and chemical attack.
• Ceramic & Kiln Applications：Used in demanding kiln zones requiring high refractoriness and stable performance.
• Chemical & Special Furnaces：Suitable for aggressive operating environments where conventional refractory bricks may not provide sufficient performance.
Why Use Corundum Brick?
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High Alumina Content |
High-purity alumina composition provides excellent refractoriness and stable performance at high temperatures. |
|
Excellent Abrasion Resistance |
Suitable for areas exposed to material flow, impact and continuous mechanical wear. |
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Good Chemical Resistance |
Provides good resistance to aggressive slag and chemical environments. |
|
High-Temperature Stability |
Maintains good structural stability under severe high-temperature operating conditions. |
When Should You Choose Corundum Brick?
Corundum brick is a suitable choice when your furnace or kiln requires performance beyond standard high alumina brick.
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Consider corundum brick when: |
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The lining is exposed to severe abrasion or material impact. |
The working environment involves chemical attack or aggressive slag. |
A high-purity refractory material is required. |
The application involves severe high-temperature conditions. |
Long-term lining stability is more important than the initial material cost. |
For general high-temperature applications without severe wear or chemical attack, high alumina brick may provide a more economical solution.
Technical Specifications
| Item | A-95 | A-99 |
|
Al₂O₃ ( % ) |
≥95 |
≥99 |
|
Fe₂O₃ ( %) |
≤0.3 |
≤0.3 |
|
Bulk Density(g/cm³) |
≥3.15 |
≥3.2 |
|
Apparent Porosity（%） |
≤18 |
≤17 |
|
Cold Crushing Strength（MPa) |
≥90 |
≥80 |
|
Refractoriness Under Load（0.2MPa.T0.6/℃） |
≥1700 |
≥1700 |
Note: Technical values can be adjusted according to different grades and application requirements.
Standard & Custom Corundum Bricks
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Factory-Direct Corundum Brick Supply
ZKD Refractory manufactures and supplies refractory bricks directly from our factory in China.
Standard & Custom Sizes：Common sizes and special shapes available.
Quality Control：Controlled raw materials, forming and firing processes.
Technical Support：Product recommendations based on your operating conditions and application requirements.
Need Corundum Bricks for Your Project?
Send us your required size, quantity, application and working conditions.
We can recommend a suitable corundum brick grade and provide a quotation.
Get a Quote
FAQ
What is corundum brick?
Corundum brick is a high-purity alumina refractory brick designed for demanding high-temperature applications requiring high refractoriness, wear resistance and chemical resistance.
Where is corundum brick used?
It is commonly used in demanding areas of industrial furnaces, metallurgical equipment, ceramic kilns and other high-temperature applications.
When should I choose corundum brick instead of high alumina brick?
Corundum brick is generally considered when higher purity, stronger abrasion resistance or better resistance to severe chemical environments is required.
Can you produce custom corundum brick shapes?
Yes. Standard sizes and custom-shaped corundum bricks can be produced according to drawings, dimensions or samples.
