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High-Quality Chrome Corundum Brick from China Suppliers & Factory 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
What is Chrome-Corundum Brick and what are its main chemical 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%, and Al₂O₃ content ranges from ≥38% to ≥80%. The low Fe₂O₃ content (≤0.50%) ensures high purity and superior resistance to chemical attack.
What is the maximum service temperature for Chrome-Corundum Brick?
Chrome-Corundum Brick can withstand temperatures up to 1790℃ while maintaining structural integrity. Its refractoriness under load (0.2MPa, 0.6%) is ≥1700℃, making it highly suitable for both intermittent and continuous high-temperature operations in demanding industrial environments.
Which industries are best suited for Chrome-Corundum Brick applications?
Chrome-Corundum Brick is widely used across multiple high-temperature industries including metallurgy (electric arc furnaces, ladles, tundishes), glass manufacturing (melting furnaces, throat, breast wall), chemical processing (reactors, incinerators, catalytic cracking equipment), as well as ceramic kilns, cement rotary kilns, and waste incineration plants.
How does Chrome-Corundum Brick compare to ordinary refractory bricks in terms of strength?
Chrome-Corundum Brick significantly outperforms ordinary refractory bricks. It features low apparent porosity (≤14–18%), high bulk density (≥3.30–3.63 g/cm³), and cold crushing strength of ≥120–130 MPa. These properties result in superior load-bearing capacity, reduced deformation under stress, and a considerably longer service life.
Is Chrome-Corundum Brick environmentally 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. It is considered safe for use in food-related industries and high-standard industrial production environments, making it a reliable and compliant choice for global applications.
What grades of Chrome-Corundum Brick are available and how do I choose the right one?
Three primary grades are available based on Cr₂O₃ content: ≥60% (highest corrosion resistance, ideal for aggressive chemical and metallurgical environments), ≥30% (balanced performance for glass and chemical industries), and ≥12% (cost-effective option for general high-temperature applications). Selection depends on the specific operating temperature, chemical exposure, and mechanical load requirements of your application. Contact us for a tailored recommendation.