Product Description
Fire Bricks, also known as refractory bricks, are heat-resistant bricks designed to withstand extreme temperatures, thermal shocks, and harsh chemical environments. Made from high-purity refractory materials such as alumina (Al₂O₃), silica (SiO₂), magnesia (MgO), and other specialized additives, fire bricks offer excellent thermal insulation, high mechanical strength, and superior resistance to corrosion and erosion. They are widely used in industrial furnaces, kilns, boilers, and high-temperature processing units across multiple industries, ensuring efficient heat containment and energy conservation. Fire bricks are available in various grades, shapes, and compositions, making them suitable for lining furnaces, fireboxes, and incinerators, as well as structural applications in high-temperature environments.
Applications
Furnaces & Kilns
Foundry
Industry
Chimneys
& Flues
Casting
Industry
Refractory
Applications
Composition & Properties
The primary constituents of fire bricks are silica (SiOâ‚‚) and alumina (Alâ‚‚O₃), with silica content typically ranging from 60% to 70% and alumina from 25% to 35%. High-grade fire bricks can withstand temperatures up to 1,648°C (2,998°F), making them suitable for lining furnaces, kilns, and fireplaces. They are generally yellowish-white or white in color, with compressive strengths ranging from 200 to 220 kg/cm² and water absorption rates between 5% and 10%.
Types of Fire bricks
Fire bricks are categorized based on their chemical composition and resistance to various environments:
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Acidic Fire Bricks: High in silica content, these bricks resist acidic environments and are commonly used in applications where exposure to acidic substances occurs.
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Basic Fire Bricks: Containing higher amounts of magnesia, these bricks are suitable for environments where they are exposed to basic substances.
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Neutral Fire Bricks: These bricks are resistant to both acidic and basic environments, making them versatile for various applications.