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Buy low price Castables Refractories INR 24 - 32 / Kg rate for Steel Furnace Ladle Tundish with high performance Wedge India.


Castables are a type of refractory material that comes in a granular or powdered form, unlike traditional refractory bricks or shapes. They are known as "castables" because they can be cast into various shapes and forms before hardening. These materials are widely used in industries where high temperatures, abrasion, and chemical resistance are required.

Here are some key points about castables:

  • Composition: Castables are composed of refractory aggregates (such as alumina, silica, magnesia, or a combination of these), binders (like calcium aluminate cement or colloidal silica), and additives (such as plasticizers, dispersants, and antioxidants). The composition can be tailored to achieve specific properties such as high-temperature resistance, thermal shock resistance, and abrasion resistance.

  • Types: There are several types of castables available based on their chemical composition, binder content, and intended use. These include conventional castables, low-cement castables (with reduced cement content for improved refractoriness), ultra-low cement castables (with very low cement content for enhanced thermal shock resistance), and no-cement castables (bonded by reactive alumina or magnesia without cement).

  • Installation: Castables are installed by mixing the dry powder with water to form a workable slurry or paste. This mixture can then be poured, cast, gunned, or shotcreted into place, depending on the application and accessibility of the installation area. After application, the castable is allowed to set and cure, forming a strong and durable refractory lining.

  • Properties: Castables exhibit excellent thermal stability, thermal shock resistance, abrasion resistance, and chemical inertness at high temperatures. They can withstand extreme conditions encountered in industries such as steelmaking, aluminum production, petrochemical processing, cement manufacturing, and power generation.

  • Applications: Castables are used to line various equipment and structures including furnaces, ladles, boilers, incinerators, kilns, rotary kilns, tundishes, and other high-temperature processing units. They provide insulation, erosion protection, and containment of molten metals, slag, gases, and other harsh substances.

In summary, castables are versatile and customizable refractory materials that offer practical solutions for lining applications in industries requiring heat management, durability, and chemical resistance. Their ability to be cast into different shapes and their performance under extreme conditions make them indispensable in modern industrial processes.

Castables Refractories

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