Dense and Light Weight Castables

Product Description

Dense or high-density castables are refractory materials with high bulk density and excellent mechanical strength. They are typically composed of high-quality aggregates, binders, and additives carefully selected to achieve optimal performance at elevated temperatures. Dense castables have a high bulk density, usually ranging from 2.8 g/cm³ to 3.2 g/cm³, which makes them more durable and resistant to mechanical wear.

The primary features of dense castables include:

• High Compressive Strength: These castables exhibit excellent compressive strength, making them suitable for applications where heavy loads and pressures are encountered.
• Low Porosity: Their low porosity levels contribute to their superior resistance to infiltration by molten metals and slag.
• High Abrasion Resistance: Dense castables can withstand abrasion and erosion, making them ideal for use in environments with abrasive conditions.
• Applications: Dense castables are commonly used in steelmaking, petrochemical, cement, and other high-temperature industrial applications, including blast furnaces, ladle linings, and boiler linings.
• Lightweight Castables: Lightweight castables, also known as insulating castables, are refractory materials designed for superior thermal insulation at high temperatures. They are formulated with lightweight aggregates, such as expanded clay, perlite, vermiculite, or bubble alumina, to reduce the overall density and thermal conductivity. The main features of lightweight castables include Low Density. Lightweight castables have a lower bulk density than dense castables, typically ranging from 0.8 g/cm³ to 1.8 g/cm³, which makes them suitable for insulation applications.
• Good Thermal Insulation: They exhibit excellent thermal insulation properties, reducing heat losses and energy consumption in high-temperature processes.
• Lower Compressive Strength: Compared to dense castables, lightweight castables have lower compressive strength but are still adequate for most insulation applications.
• Applications: Lightweight castables are widely used as insulation linings in various industrial furnaces, kilns, and boilers, where thermal efficiency is critical.

Choosing between dense and lightweight castables depends on the application’s specific requirements. Dense castables are preferred for areas that experience mechanical wear and exposure to molten metals, while lightweight castables are ideal for thermal insulation purposes, where reducing heat losses is essential.

Disclaimer: Product images are for representation purposes only. Actual part/product could differ based on individual requirements. Please contact us for more information.