Corundum mullite brick is a high-alumina refractory product composed of corundum and mullite main crystal phases. The raw materials of corundum brick mullite are all high-purity raw materials. It combines the excellent properties of both corundum and mullite minerals. Contact Kerui to purchase high-quality corundum mullite bricks!
Al2O3(≥):70-90%;
Bulk Density(≥): 2.55-2.90g/cm³;
Apparent Porosity(≤): 14-19%;
Cold Crushing Strength(≥): 80-100MPa;
Initial Refractoriness Under Load(≥): 1630-1700℃;
Feature: Good thermal shock stability, corrosion resistance, spalling resistance…
Support customized size, shape, raw material ratio
Parameter of Kerui Corundum Mullite Brick
| Item | Mullite Bricks | Resintering Fused Mullite Bricks | Mullite-Corundum Bricks | Corundum-Mullite Bricks |
|---|---|---|---|---|
| Al2O3 | ≥70% | ≥75% | ≥80% | ≥90% |
| SiO2 | ≤25% | ≤23% | ≤18% | ≤8% |
| Fe2O3 | ≤0.5% | ≤0.5% | ≤0.5% | ≤0.3% |
| Apparent Porosity | ≤17% | ≤14% | ≤19% | ≤18% |
| Bulk Density | ≥2.55g/cm | ≥2.65g/cm | ≥2.70g/cm | ≥2.90g/cm |
| Cold Crushing Strength | ≥90MPa | ≥100MPa | ≥80MPa | ≥100MPa |
| Initial Refractoriness Under Load | ≥1630℃ | ≥1700℃ | ≥1650℃ | ≥1700℃ |
Main Features of Corundum Mullite Brick
Excellent High-Temperature Resistance
- High-temperature resistance: Corundum mullite refractory bricks can withstand high-temperature environments above 1600°C(2912℉). It is suitable for various high-temperature industrial furnaces.
- Good volume stability: It is not easy to deform and crack at high temperatures. So, it ensures the stability of the furnace structure and supports long-term operation.
Strong Chemical Stability
- Corrosion resistance: It has a strong resistance to chemicals such as acids and alkalis. It can still maintain good performance in harsh chemical environments.
- Widely applicable: Suitable for chemical, metallurgical and other industries. It can withstand the erosion of various corrosive substances.
High Mechanical Strength
- High compressive strength: Corundum mullite bricks have high compressive strength and flexural strength. It can withstand various mechanical stresses and impacts in the furnace.
- Strong durability: It is not easy to be damaged during transportation, installation and use. Thus, this prolongs the service life of corundum mullite bricks.
Low Thermal Conductivity
- Energy saving: Like corundum brick, it can effectively reduce heat loss and improve the thermal efficiency of the furnace.
- Temperature uniformity: Low thermal conductivity helps maintain uniform temperature inside the furnace. Using Kerui’s corundum mullite brick can improve product quality.
Application Advantages of Kerui Corundum Mullite Brick
Corundum mullite bricks can directly contact flames, resist spalling and are resistant to high temperatures. It can be used as the working layer and thermal insulation lining of high-temperature industrial furnaces.
Main application areas include:
- Steel metallurgical furnace: Suitable for high-temperature equipment such as blast furnaces, hot blast furnaces, electric arc furnaces, etc. It can withstand high temperatures and mechanical shocks.
- Glass melting furnace: Corundum mullite rotary kiln can withstand high temperatures and erosion of glass liquid. Therefore, it is suitable for glass melting and annealing processes.
- Cement rotary kiln: Suitable for clinker burning process, can withstand high temperatures and clinker impact.
- Chemical industry kiln: Suitable for chemical reactors, heating furnaces and other equipment. It can withstand high temperatures and erosion of corrosive media.
- Other high-temperature equipment: Such as ceramic sintering kilns, ceramic roller kilns, etc. As refractory material manufacturers, Kerui refractory brick can withstand high temperatures and friction of products.
Trustworthy Corundum Mullite Brick Supplier – Kerui
High-Cost Performance
- Reasonable pricing: Kerui flexibly adjusts product pricing based on market demand, raw material price fluctuations and other factors. We ensure that customers can purchase high-quality corundum mullite bricks at a reasonable price.
- High-cost performance: Kerui’s corundum mullite bricks have excellent durability and efficient working performance. It can save a lot of maintenance costs in actual use. In the long run, its cost performance is much higher than that of similar refractory bricks.
Diverse Product Selection
- Customized service: We can customize products according to the size and shape required by customers. Moreover, we can also adjust the ratio of corundum and mullite. Purchasing refractory bricks from Kerui can meet the needs of kilns for specific environments.
- High-performance products: Kerui produces different types of sintered mullite bricks and fused mullite bricks. We can cover all kinds of industrial needs from high-temperature smelting to medium-temperature heating.
Buy Kerui Corundum Mullite Brick
The high-purity corundum mullite brick of Kerui Refractory is of high quality. They surpass the level of similar products at home and abroad in terms of appearance, size, physical and chemical indicators and service life. Hurry up and contact us through the message box below or WhatsApp to customize your refractory brick!
