Andalusite brick consists of high-purity aluminum oxide and mullite. The refractoriness is up to 1700℃. It is an ideal refractory brick that is used for blast furnaces and hot blast stoves. Ronghua Refractory is an experienced manufacturer that provides different kinds of refractory products and solution for 2000+ partners.
- Al2O3: ≥69%;
- Fe2O3: ≤1-1.5%;
- Bulk Density: 2.30-2.70g/cm³;
- Refractoriness Under Load: ≥1450-1700ºC;
- Cold Crushing Strength: 40-55MPa;
- Size: 230*114*65mm (standard)/And other sizes;
Free Sample Available to Any Country
High Working Temperature
Proper Thermal Stability
Proper Acid Resistance
Good Thermal Shock Resistance
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Technical Data of Ronghua Andalusite Refractory Bricks
| Item | RH-155 | RH-150 | RH-145 | RH-140 | RH-135 | RH-130 | |
|---|---|---|---|---|---|---|---|
| Al2O3, % | ≥ | 69 | 65 | 61 | 57 | 53 | 49 |
| Fe2O3, % | ≤ | 1 | 1 | 1.2 | 1.2 | 1.5 | 1.5 |
| TiO2, % | ≤ | 0.5 | 0.5 | 0.5 | 0.6 | 0.6 | 0.6 |
| Apparent Porosity, % | ≤ | 20 | 20 | 20 | 20 | 20 | 20 |
| Bulk Density, g/cm³ | 2.55~2.70 | 2.50~2.65 | 2.45~2.60 | 2.40~2.55 | 2.35~2.50 | 2.30~2.45 | |
| Cold Crushing Strength, MPa | 55 | 55 | 50 | 50 | 40 | 40 | |
| 0.2MPa Refractoriness Under Load, ℃ | ≥ | 1700 | 1700 | 1650 | 1600 | 1520 | 1450 |
| Permanent Line Change, % | 1500℃*2h ±0.2 |
1450℃*2h ±0.2 |
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Characteristics of Ronghua Andalusite Fire Bricks
Great Refractoriness
Andalusite refractory bricks have great refractoriness under high-temperature situations. After heating them, they will have better refractoriness than mullite bricks. Andalusite refractory bricks can resist up to 1700℃. They can be used for the linings and other parts of the high-temperature equipment.
Chemical Stability
Andalusite blocks have excellent chemical stability. They will not eroded by chemical materials so that affects the production. Besides, they even have insoluble strong acids like HF (hydrofluoric acid). In complex industrial equipment, a stable chemical capacity is the key to extending the life cycle of equipment.
Low Creep Rate
Andalusite bricks have a low creep rate. This contributes to keeping the volume of equipment. And they will not affected by thermal shock in the high-temperature environment. In this situation, the safety hazard is avoided in the production process.
Good Mechanical Shock Resistance
Good mechanical shock resistance helps fire andalusite brick resist the shock of the equipment in the working process. The bricks will not easily peel off. Therefore, this brick can used in the industrial equipment with strong shock environment.
Applications of Ronghua Andalusite Brick
Due to the excellent performance of andalusite bricks, these bricks are widely used for various industrial high-temperature equipment. You can use them in the ceramic industry, glass industry, metallurgy industry, cement industry, steel industry, and so on.
Andalusite brick can be used for the linings of hot blast stoves, glass furnaces, ceramic furnaces, cement rotaries, ladles, etc. It also can used in hot blast outlets, nozzle material, and other parts of industrial equipment.
Production Process of Refractory Andalusite Bricks
In the production process, Ronghua has digital intelligent equipment to control the ratio of aluminum oxide and mullite. Besides, we have numerical control presses that have high accuracy and strong capacity. Then, we will inspect the andalusite refractory brick to ensure the quality of the refractory blocks. Finally, partners get quality bricks from us. All of these process guarantees the quality.
Special Services of Ronghua Andalusite Bricks
- Answer customer questions online at any time by a professional sales manager;
- Provide andalusite brick and other product solutions;
- Offer refractory kiln design for partners, including andalusite brick part;
- Professional technicians to guide customers on how to construct refractory materials;
- Provide turnkey service to customers, including andalusite brick solution.
Contact Ronghua to Get Quality Andalusite Brick
Ronghua Refractory has more than 20 years of production experience. The refractory products have been exported to many countries. We can provide the most favorable price of andalusite bricks to customers because of own manufacturing factory. You can browse our cases to find feedback from customers. It is also available for you to see the video on Youtube.If you are not confirm your solutions or the choosing the refractory products, send message to us now!
