High Alumina Bricks: Premium Refractory Solutions for High-Temperature Industries
Product Overview: High Alumina Brick (Al₂O₃ content ≥48%) is a superior refractory material, crafted from high-quality bauxite, widely used in industries that demand exceptional high-temperature performance. These bricks excel in iron and steel, cement, glass, and non-ferrous metal smelting applications. Their outstanding refractoriness (≥1770°C), thermal shock resistance, and resilience to chemical erosion make them ideal for use in high-temperature kilns.
Core Advantages and Technical Features:
1. Exceptional High Temperature Resistance
- Grade I High Alumina Brick (Al₂O₃ ≥75%): With an extreme use temperature up to 1790°C, these bricks are perfect for high-temperature environments like electric arc furnace roofs and ladle linings.
- Secondary High Alumina Bricks (Al₂O₃ 60%-75%): Offering cost-effective solutions for medium to high-temperature applications such as rotary kiln transition zones and hot blast furnaces.
- Low Impurity Design: Reduced content of Fe₂O₃, TiO₂ (≤2.5%) minimizes the risk of high-temperature slag penetration.
2. Superior Erosion Resistance and Thermal Shock Stability
- High-Density Structure: With a bulk density ≥2.6g/cm³, these bricks resist both acidic and alkaline slag erosion.
- Thermal Shock Resistance: Capable of withstanding 15+ cycles of 1100°C water cooling, extending the lifespan of your kiln and reducing maintenance frequency.
3. Environmental Protection & Energy Saving
- Low Thermal Conductivity: With thermal conductivity ≤1.5W/m-K, our bricks minimize heat loss, reducing fuel costs and improving energy efficiency.
- Chromium-Free Formula: Conforms to EU REACH regulations, avoiding risks associated with heavy metal pollution.
Typical Applications of High Alumina Bricks:
| Industries | Application Sections | Solution Value |
|---|---|---|
| Iron & Steel Smelting | Blast Furnace Cylinders, Hot Blast Furnace Vaults | Resists molten iron erosion, supporting long-term furnace stability. |
| Cement Manufacturing | Rotary Kiln Transition Belt, Kiln Door Hood | Resists clinker alkali erosion, preventing kiln skin peeling. |
| Glass Manufacturing | Kiln Breast Walls, Heat Storage Chambers | Protects against high-temperature glass liquid corrosion, ensuring melting efficiency. |
| Nonferrous Metals | Copper Smelting Reflector Furnace, Aluminum Electrolyzer Lining | Resists metal melt infiltration, prolonging maintenance cycles. |
Why Choose Our High Alumina Bricks?
- Customized Production: We adjust Al₂O₃ content (48%-85%) and additives formulas based on your specific working conditions, including temperature, atmosphere, and erosion media.
- Strict Quality Control: Manufactured with European tunnel kiln technology to ensure uniform sintering. Our products are certified by ISO 9001 and ASTM C27/C155 standards.
- Global Service Network: We offer comprehensive services, from product selection and design to masonry guidance and after-sales support. Our logistics cover key regions, including the Middle East, Southeast Asia, and South America.
Competitive Market Advantage:
- Cost-Effective Solutions: Our high alumina bricks are 15%-20% more affordable than imported alternatives, with a reduced delivery cycle of just 30 days.
Successful Case Studies:
- Vietnam Steel Plant: Customized 75% high alumina bricks increased the electric furnace lifespan from 180 to 250 furnace cycles.
- German Glass Kiln: Supplied low porosity (≤18%) high alumina bricks, helping to reduce energy consumption by 8%.
