High Alumina Chequer Firebrick is an advanced refractory material designed for heat storage and heat transfer applications in high-temperature industrial furnaces. These firebricks are made from high-quality alumina raw materials and feature excellent thermal properties, strong heat exchange capacity, and low thermal resistance. Primarily used in hot blast stoves and other high-temperature applications, they are known for their high mechanical strength, corrosion resistance, and thermal shock stability.
Physicochemical Parameters
| Items | XT-80 | XT-75 | XT-65 | XT-55 | XT-48 |
|---|---|---|---|---|---|
| Al₂O₃ (%) | 80 | ≥75 | ≥65 | ≥55 | ≥48 |
| Refractoriness (°C) | ≥1790 | ≥1790 | ≥1790 | ≥1770 | ≥1750 |
| Apparent Porosity (%) | ≤22 | ≤23 | ≤23 | ≤22 | ≤22 |
| Cold Crushing Strength (MPa) | 55 | ≥50 | ≥45 | ≥40 | ≥35 |
| Softening Temperature Under Load (°C) | ≥1530 | ≥1520 | ≥1500 | ≥1470 | ≥1420 |
| Linear Changes on Reheating (%) | 1500°C×2h 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Bulk Density (g/cm³) | 2.65 | 2.5 | 2.45 | 2.4 | 2.3 |
Product Features
- High Refractoriness: With a refractoriness of up to 1790°C, these firebricks are designed to withstand extreme temperatures without deforming.
- Spalling Resistance: Excellent resistance to thermal spalling ensures longevity and stability under fluctuating temperatures.
- Corrosion Resistance: The high alumina content provides strong resistance to chemical corrosion, extending the service life of the furnace.
- Thermal Shock Resistance: Capable of enduring rapid temperature changes without cracking.
- Mechanical Strength: High mechanical strength ensures that the firebricks can support high-pressure applications.
- Low Creep Rate: These bricks maintain structural integrity under high temperatures due to their low creep rate.
Applications
High Alumina Chequer Firebricks are widely used in various high-temperature industrial applications, including:
- Steel and Iron Making Furnaces: For enhancing heat storage in blast furnaces and other high-temperature areas.
- Glass Kilns: Used in areas of extreme heat, providing superior insulation and protection.
- Cement Kilns: Crucial for heat transfer and resistance to chemical attack in rotary kilns.
- Ceramic Kilns and Rotary Kilns: Ideal for environments requiring high thermal stability.
These bricks are also effective for Reverberatory Furnaces and Sodium Silicate Furnaces.
Customization Services
We offer custom sizes and shapes tailored to your specific furnace design requirements. Choose from various hole configurations (7 holes, 19 holes, 37 holes) to suit your needs.
Packing and Shipping Details
- Packing: Secure packaging in eco-friendly materials, custom options available.
- Shipping: Available via sea, air, or road depending on order size and destination.
- Delivery: 5-7 business days for domestic orders; 7-21 business days for international orders.
About Xintai Refractory
Xintai Refractory is a trusted manufacturer of premium refractory products, specializing in high-performance firebricks for various industries. With over 20 years of experience, we provide cost-effective, customized solutions for high-temperature applications worldwide.
