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High-Quality Chromia Corundum Bricks 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
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What is Chrome-Corundum Brick and what are its main components?
Chrome-Corundum Brick is a high-grade refractory material composed primarily of Cr₂O₃ (chromium oxide) and Al₂O₃ (alumina). Depending on the grade, Cr₂O₃ content ranges from ≥12% to ≥60%, and Al₂O₃ ranges from ≥38% to ≥80%. This combination delivers outstanding corrosion resistance, high thermal stability, and excellent mechanical strength for extreme industrial environments.
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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% deformation) remains above 1700℃, making it suitable for the most demanding continuous and intermittent high-temperature industrial operations.
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Which industries are Chrome-Corundum Bricks most commonly used in?
Chrome-Corundum Bricks are widely used across several high-temperature industries, including metallurgy (electric arc furnaces, ladles, tundishes), glass manufacturing (melting furnaces, throat, breast wall), chemical processing (reactors, incinerators, catalytic cracking units), as well as ceramic kilns, cement rotary kilns, and waste incineration plants.
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How does Chrome-Corundum Brick compare to ordinary refractory bricks in terms of durability?
Chrome-Corundum Brick significantly outperforms ordinary refractory bricks in durability. It features low apparent porosity (≤18%), high bulk density (≥3.30 g/cm³), and cold crushing strength of ≥120MPa. These properties result in superior load-bearing capacity, reduced deformation under extreme conditions, and a noticeably extended service life, lowering overall maintenance costs.
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Is Chrome-Corundum Brick environmentally safe and compliant with international standards?
Yes. Chrome-Corundum Brick is manufactured using non-toxic raw materials and complies with both ISO and ASTM international standards. This makes it safe for use in food-related processing environments as well as high-standard industrial applications that require strict material safety regulations.
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Can Chrome-Corundum Brick be customized for specific application requirements?
Yes. Chrome-Corundum Bricks are available in multiple grades with varying Cr₂O₃ and Al₂O₃ content to suit specific application needs — from standard industrial furnace linings to specialized stainless steel smelting or glass manufacturing environments. Please contact us with your technical requirements to receive a tailored recommendation and accurate quote.