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China Chrome Corundum Brick Suppliers - High-Quality Factory Manufacturing for Glass and Metallurgy Industries
Core Advantages
Superior Corrosion Resistance
Rich in Cr₂O₃ and high-purity Al₂O₃, it effectively resists erosion from molten metals, slags, and chemical media, avoiding premature brick damage in harsh environments.
Excellent Thermal Stability
Withstands rapid temperature changes and maintains structural integrity at temperatures up to 1790℃, suitable for intermittent and continuous high-temperature operations.
High Density & Mechanical Strength
Low porosity (≤18%) and high compressive strength (≥120MPa) ensure strong load-bearing capacity, reducing deformation and extending service life compared to ordinary refractory bricks.
Environmentally Friendly & Compliant
Manufactured with non-toxic raw materials, meets ISO and ASTM standards, ensuring safe use in food-related and high-standard industrial production.
Product Parameters
| Item | Chrome-Corundum Brick | ||
|---|---|---|---|
| Cr₂O₃ % | ≥60 | ≥30 | ≥12 |
| Al₂O₃ % | ≥38 | ≥68 | ≥80 |
| Fe₂O₃ % | ≤0.20 | ≤0.20 | ≤0.50 |
| Apparent Porosity % | ≤14 | ≤16 | ≤18 |
| Bulk Density g/cm³ | ≥3.63 | ≥3.53 | ≥3.30 |
| Cold Crushing Strength MPa | ≥130 | ≥130 | ≥120 |
| Refractoriness Under Load ℃ (0.2MPa, 0.6%) | ≥1700 | ≥1700 | ≥1700 |
| Permanent Linear Change % (1600℃ × 3h) | ±0.2 | ±0.2 | ±0.2 |
Detailed Application Scenarios
1
Metallurgy Industry
◎ Widely used in electric arc furnaces, ladles, tundishes, and converter linings. It resists erosion from molten steel, iron, and metallurgical slags, ensuring stable operation of smelting equipment. Particularly suitable for stainless steel and special alloy smelting, where high corrosion resistance is required.
2
Glass Industry
◎ Applied in glass melting furnaces, especially in the throat, breast wall, and bottom parts. It withstands high temperatures and corrosion from molten glass and volatile substances, preventing glass liquid contamination and extending the furnace's service life, which is crucial for continuous glass production.
3
Chemical Industry
◎ Ideal for high-temperature reactors, incinerators, and catalytic cracking equipment. It resists corrosion from acidic, alkaline, and organic chemical media, maintaining structural stability in harsh chemical reaction environments, and is widely used in petrochemical and fine chemical production.
4
Other High-Temperature Fields
◎ Also used in ceramic kilns, cement rotary kiln burning zones, and waste incineration plants. Its excellent thermal stability and wear resistance adapt to different high-temperature working conditions, reducing maintenance frequency and production downtime.
Conclusion
Contact us now for a quote and experience the difference of working with the best in the business.
Frequently Asked Questions
Q
What is Chrome-Corundum brick and what are its main components?
▼
Chrome-Corundum brick is a high-performance refractory material primarily composed of Cr₂O₃ (chromium oxide) and Al₂O₃ (aluminum oxide). Depending on the grade, Cr₂O₃ content ranges from ≥12% to ≥60%, while Al₂O₃ content ranges from ≥38% to ≥80%. This combination delivers outstanding corrosion resistance, thermal stability, and mechanical strength for demanding industrial applications.
Q
What is the maximum operating temperature for Chrome-Corundum bricks?
▼
Chrome-Corundum bricks can maintain structural integrity at temperatures up to 1790℃. Their Refractoriness Under Load (0.2MPa, 0.6%) is ≥1700℃, making them suitable for both continuous and intermittent high-temperature operations in metallurgy, glass manufacturing, and chemical processing.
Q
Which industries are Chrome-Corundum bricks most commonly used in?
▼
Chrome-Corundum bricks are widely used across multiple high-temperature industries, including: the metallurgy industry (electric arc furnaces, ladles, tundishes, converters), the glass industry (glass melting furnaces, throats, breast walls), the chemical industry (reactors, incinerators, catalytic cracking units), and other fields such as ceramic kilns, cement rotary kilns, and waste incineration plants.
Q
How does the porosity and density of Chrome-Corundum brick compare to ordinary refractory bricks?
▼
Chrome-Corundum bricks feature low apparent porosity (≤14%–18% depending on grade) and high bulk density (≥3.30–3.63 g/cm³). Their Cold Crushing Strength reaches ≥120–130 MPa, significantly higher than ordinary refractory bricks. This results in superior load-bearing capacity, reduced deformation under stress, and a longer service life in harsh industrial environments.
Q
Are Chrome-Corundum bricks environmentally safe and compliant with international standards?
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Yes. Chrome-Corundum bricks are manufactured using non-toxic raw materials and comply with both ISO and ASTM international standards. They are safe for use in food-related industries and high-standard industrial production environments, ensuring both worker safety and environmental compliance throughout their service life.
Q
How do I select the right grade of Chrome-Corundum brick for my application?
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Selecting the appropriate grade depends on your specific operating conditions. For applications requiring extreme corrosion resistance (e.g., stainless steel smelting), a grade with Cr₂O₃ ≥60% is recommended. For glass furnaces or chemical reactors, grades with higher Al₂O₃ content (≥68%–80%) may be more suitable. Please contact us with your application details, and our technical team will recommend the optimal grade and configuration for your needs.