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Chrome Corundum Brick Suppliers in China - High-Quality Factory Products 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 and high-purity Al₂O₃. Depending on the grade, Cr₂O₃ content ranges from ≥12% to ≥60%, while Al₂O₃ content ranges from ≥38% to ≥80%. This unique composition delivers outstanding corrosion resistance, thermal stability, and mechanical strength for demanding industrial applications.
Q
What is the maximum operating temperature for Chrome-Corundum brick?
Chrome-Corundum brick can maintain structural integrity at temperatures up to 1790℃. Its refractoriness under load (0.2MPa, 0.6%) reaches ≥1700℃, making it highly suitable for both intermittent and continuous high-temperature industrial operations such as metallurgical smelting and glass melting furnaces.
Q
Which industries are Chrome-Corundum bricks most commonly used in?
Chrome-Corundum bricks are widely used across multiple high-temperature industries including: metallurgy (electric arc furnaces, ladles, tundishes, converter linings), glass manufacturing (glass melting furnace throats, breast walls, and bottoms), chemical processing (high-temperature reactors, incinerators, catalytic cracking equipment), as well as ceramic kilns, cement rotary kilns, and waste incineration plants.
Q
How does Chrome-Corundum brick compare to ordinary refractory bricks in terms of performance?
Compared to ordinary refractory bricks, Chrome-Corundum brick offers significantly lower porosity (≤18%), higher cold crushing strength (≥120MPa), and superior resistance to molten metals, slags, and chemical media. These properties result in reduced deformation, longer service life, lower maintenance frequency, and less production downtime, making it a more cost-effective solution for harsh industrial environments.
Q
Is Chrome-Corundum brick safe and compliant with international standards?
Yes. Chrome-Corundum brick is manufactured using non-toxic raw materials and meets both ISO and ASTM international standards. This ensures it is safe for use in food-related industrial production as well as other high-standard manufacturing environments that require strict compliance with safety and environmental regulations.
Q
Can Chrome-Corundum brick withstand rapid temperature changes (thermal shock)?
Yes. One of the key advantages of Chrome-Corundum brick is its excellent thermal stability. It is specifically engineered to withstand rapid temperature fluctuations without cracking or losing structural integrity. This makes it ideal for applications that involve frequent heating and cooling cycles, such as intermittent furnace operations in metallurgy and chemical processing industries.