High Alumina Refractory Brick
High alumina brick is a kind of neutral refractory material. Its alumina content is as high as 80%. It has good high refractoriness. This brick is widely used in steelmaking electric furnaces, glass melting furnaces, cement rotary kilns and other high-temperature kinls. Kerui, as the original manufacturer, offers a wide range of bricks, factory prices and professional services to 1000+ global partners.
- Free Sample:
- Available
- Document:
- Certificates Supporting
- Performance Test:
- Support
- Shipment:
- 7-35 working days
Specifications of Kerui High Alumina Refractory Brick
Kerui provides the following conventional types of high alumina bricks. These can meet the needs of most customers. In addition, we also provide other types. See the next section for details.
| Item | LZ-80 | LZ-75 | LZ-70 | LZ-65 | LZ-60 | LZ-55 | LZ-48 | |
|---|---|---|---|---|---|---|---|---|
| Al2O3, /% | ≥ | 80 | 75 | 70 | 65 | 60 | 55 | 48 |
| Apparent Porosity, % | ≤ | 21 | 24 | 24 | 24 | 26 | 22 | 22 |
| Cold Crushing Strength, MPa | ≥ | 70 | 60 | 55 | 50 | 45 | 45 | 40 |
| 0.2MPa Refractoriness Under Load, ℃ | ≥ | 1530 | 1520 | 1510 | 1500 | 1430 | 1450 | 1420 |
| Permanent Linear Change, % | 1500℃*2h -0.4~0.2 | 1450℃*2h -0.4~0.1 |
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Choosing Suitable Types of High Alumina Bricks
Kerui offers the above-normal types. Besides, we also offer the following types of high alumina bricks for customers. Contact us for details.
- SK series: SK-36 and SK-38;
- By function: Low creep high alumina bricks; Phosphate-bonded high alumina bricks; Anti-stripping high alumina bricks;
- By shape: Runnber bricks, checker bricks, general and special shaped high alumina bricks.
- According to alumina content: Special grade (Al2O3 75-85%), first grade (Al2O3 65-75%), second grade (Al2O3 55-65%), third grade (Al2O3 48-55%);
- Hot types: 60 alumina bricks, 65 alumina bricks, 70 alumina bricks, 75 alumina bricks, 80 alumina bricks.
Introduction of Kerui High Alumina Refractory Brick
- Raw material: Kerui brick is a neutral refractory material with more than 48% content of Al2O3. The main raw materials are alumina clinker and bonded clay.
- Burning temperature: The high-quality raw materials are burned between 1500-1600°C and form bricks.
- Quality control: Kerui has a strict quality control system, including raw materials quality testing, quality reports of high alumina bricks, etc.
- Production equipment: 400T-1000T presses, 2*168-meter natural gas tunnel kilns, etc.
- Features: It has high thermal stability. The fire resistance is above 1770 °C.
- Uses: The residual resistance is better, and it is used in the lining of the steelmaking electric furnace, glass furnace, and cement turning furnace.
- Shapes: Besides standard size (230*114*65mm), Kerui offers side-arc shape, side-arc shape, anchor brick, arc brick, etc.
Video of Kerui High Alumina Refractory Bricks
Kerui high-alumina brick production line adopts highly automated equipment to achieve efficient production capacity and stable quality. The products have been inspected and highly recognized by many visiting customers. This video presents the product characteristics, intelligent production process, quality inspection links and standardized packaging and delivery system in an all-round way, and intuitively shows the core advantages of the company.
Advantages of Kerui Alumina Refractory Bricks
- High refractoriness: The refractoriness is as high as 1750-1790 degrees Celsius.
- High load softening temperature: The high alumina content and low impurities make the load-softening temperature higher than that of fire clay brick.
- Strong slag resistance: Alumina can well resist acidic and alkaline slag.
- Strong thermal shock resistance: The thermal expansion coefficient is low. It is not easy to deform at high temperatures.
- Strong mechanical properties: High alumina refractory bricks can better withstand compressive and flexural strength.
Applications of Kerui High Alumina Refractories Bricks
Global Partners of Kerui High Alumina Refractories Bricks
Partners from over 50 countries have chosen Kerui high alumina bricks. Our partners include RUSAL, CHALCO, ALBA, POSCO, PSM, and others. They have a high level of recognition for us and maintain long-term cooperation.
Contact Kerui Refractory
Kerui Refractory has more than 20 years of manufacturing and exporting refractory bricks. We have international certificates, patents of refractory bricks, and other certificates. We have strong production capacity and strict quality control system to guarantee the quality. Moreover, our professional manager and technical professionals will guide you to choose the suitable bricks and high-temperature construction. View some video on Kerui YouTube.
