Brown Fused Alumina Composite Brick
Brown fused alumina composite bricks are made primarily from brown fused alumina and silicon carbide, with special additives added, then formed by molding and fired at high temperatures.
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Keywords:
Aluminum
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Inquire NowProduct Description
| Item | Brown corundum composite brick 1 | Brown corundum composite brick 2 |
| Al2O3 % | ≥80 | ≥76 |
| SiC % | ≥9 | ≥12 |
| Fe2O3 % | ≤0.8 | ≤0.8 |
| Bulk density g/cm³ 3 Bulk density | ≥2.9 | ≥2.8 |
| Cold compression strength MPa | ≥100 | ≥100 |
| Load softening start temperature ℃ (0.2MPa, 0.6%) Refractoriness under load |
≥1680 | ≥1680 |
| Reheating linear change rate % (1600℃×3h) Reheating linear change |
±0.2 | ±0.2 |
Performance: Brown corundum composite brick is made primarily from brown corundum and silicon carbide, with special additives added, formed by molding and high-temperature firing.
It has excellent resistance to alkaline slag and molten iron corrosion, low slag erosion rate, high thermal shock stability, low volume expansion rate at high temperatures, can withstand severe furnace temperature fluctuations, high high-temperature flexural strength, strong abrasion resistance, long service life, excellent oxidation resistance, suitable for high-temperature oxidative environments.
Application: Brown corundum composite bricks have wide applications in many fields. In the metallurgical industry, they are widely used in steelmaking furnaces, blast furnaces, and electric furnaces to protect furnace linings and extend equipment life. They are used in key parts such as tuyeres, iron outlets, and slag outlets, resisting long-term erosion by molten iron and slag. Used in electric furnace doors, they can withstand high temperatures, abrasion, and oxidation caused by molten ore liquid flow during frequent door openings, effectively protecting the furnace door structure. In the petroleum and chemical industries, they are ideal lining materials for high-temperature equipment such as gasifiers and carbon black reactors, adapting to chemical melts and gas environments.
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