The 70 High Alumina Refractory Brick from Xintai Refractory is engineered for high-performance industrial applications. Featuring 70–72% Al₂O₃ content, these bricks offer excellent thermal stability, mechanical strength, and resistance to both thermal shock and chemical corrosion. Ideal for use in various high-temperature environments, the 70% High Alumina Refractory Brick provides long-lasting performance for industrial furnaces, kilns, and reactors.
Technical Specifications
| Item | 70% High Alumina Fire Brick |
|---|---|
| Brand | Xintai |
| Al₂O₃ Content | 70–72% |
| Bulk Density | 2.60–2.65 g/cm³ |
| Cold Crushing Strength | 550–650 kg/cm² |
| Working Temperature | ≤1700ºC |
| Classification Temp. | ~1700ºC |
| Size | 230×114×65 mm (standard) / Custom |
| Color | Light Yellow / Buff |
| Certification | ISO9001 / ISO14001 / ISO45001 / ISO50001 |
| Sample | Free sample available worldwide |
Key Features
- High Refractoriness: Resists temperatures up to 1700ºC, ensuring no deformation or melting under extreme heat.
- Excellent Mechanical Strength: Withstands high loads and pressures from industrial processes without crushing or breaking.
- Thermal Shock Resistance: Can handle rapid temperature changes without cracking or spalling.
- Chemical Stability: Highly resistant to corrosion from acidic gases, molten slag, and alkali.
- Precision Machining: Manufactured with high accuracy to ensure tight and stable refractory linings.
Typical Applications
- Lining for cement rotary kilns and calcining furnaces
- Steel ladles, soaking pits, and electric arc furnaces
- High-temperature incinerators and waste gasifiers
- Lime kilns, hot blast stoves, and preheaters
- General industrial furnace linings requiring high alumina performance
Production Details
The 70% High Alumina Refractory Brick is made from premium-grade bauxite and bonding clays. The manufacturing process involves advanced pressing techniques and high-temperature sintering to ensure durability, strength, and reliability in demanding thermal environments. Quality control procedures are strictly followed to meet international standards and deliver consistent performance.
Packing and Shipping Details
- Packing: Securely packed on fumigated wooden pallets with shrink wrap and edge protection. Custom packaging options are available.
- Shipping: Global shipping via sea or air with optimized loading for cost efficiency.
- Lead Time: 7–15 days, depending on order size and customization.
Frequently Asked Questions (FAQ)
Q1: What’s the difference between 70% and higher-grade alumina bricks?
70% alumina bricks provide a balance between refractoriness and cost, making them suitable for medium-to-high temperature environments. Higher-grade alumina bricks (75% and above) offer superior resistance to thermal shock, corrosion, and higher temperatures, making them ideal for more demanding industrial applications.
Q2: Can I get custom shapes or sizes?
Yes, we offer custom shapes and sizes to meet your specific requirements. Please contact us with your specifications, and we will tailor the bricks to your needs.
Q3: Are these bricks suitable for load-bearing areas?
Yes, the 70% High Alumina Refractory Bricks are designed with strong mechanical properties, allowing them to withstand load-bearing applications. They are ideal for furnace linings, kilns, and other industrial uses where high strength is necessary.
Q4: What industries can benefit from using 70% High Alumina Refractory Bricks?
These bricks are widely used in industries such as cement manufacturing, steel production, power generation, waste management, and other high-temperature applications like incinerators and gasifiers.
Q5: How do I know if these bricks are the right fit for my application?
The 70% High Alumina Refractory Bricks are ideal for environments that require excellent thermal stability and resistance to abrasion, thermal shock, and chemical corrosion. If your application involves high temperatures up to 1700ºC, they are a suitable choice. For more specific advice, feel free to contact us.
Q6: What certifications do these bricks hold?
Our 70% High Alumina Refractory Bricks are certified by ISO9001, ISO14001, ISO45001, and ISO50001, ensuring they meet international quality, environmental, and safety standards.
