| Refractoriness (℃): | 1770< Refractoriness< 2000 |
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| Feature: | Long Time Materials |
| Type: | Refractory Material |
| Customization: |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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| Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Product Attributes
| Type | Supports customization | Product Name | Refractory brick | |
| Compressive Strength | 60-100(MPa) | Specifications | National standard | |
| Refractory Temperature | 1700-1900(ºC) | CAS | Firebrick | |
Product Introduction
Corundum-mullite bricks are typically manufactured using synthetic mullite to produce corundum-mullite bricks. Mullite granules can be used as aggregates, α-Al2O3 powder as a powder material, or fused or sintered corundum granules as aggregates, with synthetic mullite powder as the powder material. Corundum-mullite bricks refer to refractory bricks made from high-purity or relatively pure raw materials. Common corundum-mullite bricks have an aluminum content of over 90%, and the presence of low-melting-point oxide impurities can reduce their high-temperature performance. Therefore, the unit price of corundum-mullite bricks is much higher than that of ordinary high-alumina bricks.
Product Usage
Corundum-mullite bricks can directly contact flames, resist peeling, and withstand high temperatures. They can be used as insulation linings for high-temperature industrial furnaces and as working layers for other industrial high-temperature kilns. They are mainly applied in the petrochemical industry, large and medium-sized synthetic ammonia gasification furnaces, and materials for gas furnaces in magnetic materials. They are also used as supporting materials for high-temperature industrial kilns.
Physical and Chemical Indicators
| Item | Unit | Mullite Brick | Re-sintered Fused Mullite Brick | Mullite-Corundum Brick | Corundum-Mullite Brick |
| 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 | g/cm | ≥2.55 | ≥2.65 | ≥2.70 | ≥2.90 |
| Cold Crushing Strength | MPa | ≥90 | ≥100 | ≥80 | ≥100 |
| Load Softening Onset Temperature (0.2MPa,0.6%) |
ºC | ≥1630 | ≥1700 | ≥1650 | ≥1700 |
| Application | - | Glass melting furnace upper structure brick, feeder brick, cover plate, lining for metallurgical and other industrial medium-temperature kilns, and lining for the rapid cooling section and holding section of carbon black reaction furnace. |
Upper dome, dome foot brick for glass melting furnace, and lining for other industrial thermal equipment. | Upper structure brick, cover plate, forming components for glass melting furnace, lining for medium-temperature carbon black reaction furnace, and other thermal equipment linings. High-temperature mullite-corundum crucible for use. | Upper structure brick, feeder brick, cover plate, forming components for glass melting furnace, lining for medium-temperature carbon black reaction furnace, and other thermal equipment linings. High-temperature corundum-mullite crucible for use. |
Company Profile
Vision
With dees of rapid development and accumulation, China has been perfect and mature on technology and management in various industrial areas, shaping a complete processing manufacturing industry with competitive price, well known for its excellent skill, high efficiency and hardworking team with qualification for personnel dispatching.
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