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Iron and Steel Metallurgy
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Chrome Corundum Brick for Glass Industry & Metallurgy
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 |
| g/cm³ Bulk Density |
≥3.63 | ≥3.53 | ≥3.30 |
| MPa Cold Crushing Strength |
≥130 | ≥130 | ≥120 |
| ℃（0.2MPa,0.6%） Refractoriness Under Load |
≥1700 | ≥1700 | ≥1700 |
| % Permanent Linear Change 1600℃ x 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
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