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Classification of Refractory Castables

Refractory castables, commonly referred to as "castables," belong to the category of unshaped (monolithic) refractory materials. Among the various types available, calcium aluminate cement is one of the most widely used binders in refractory castable production.
High-strength wear-resistant castables
High-temperature resistant castables
Low-cement castables
Steel-fiber reinforced castables
Acid- and heat-resistant castables
Clay-based castables
High-alumina castables
Siliceous castables
Mullite castables
Corundum castables
Silicon carbide castables
Magnesia-based castables
Alumina-silicon carbide castables for iron ladles and runners
Alumina-magnesia spinel castables for steel ladles
Other specialized castables designed for industrial furnaces and kilns
Lightweight castables
Dense (heavyweight) castables
Acid-resistant castables
Neutral castables
Alkali-resistant castables
Alumina-based castables
Magnesia-based castables
Carbon-based castables
The classifications above mainly refer to cement-bonded refractory castables. In addition to cement bonding, refractory castables can also utilize phosphoric acid, resin, or water glass (sodium silicate) as bonding agents. Among these options, cement-bonded castables remain the most widely used in industrial applications.
Xinxiang Tianyi Thermal Insulation Materials specializes in the production of high-temperature refractory castables, refractory bricks, lightweight insulating bricks, high-alumina bricks, and high-alumina wear-resistant castables. The company offers both shaped refractory products, including aluminum silicate bricks, silica bricks, basic refractory bricks, and lightweight insulating bricks, as well as unshaped refractory materials such as castables, self-flowing materials, and plastic refractories for industries including coking, building materials, iron and steel, non-ferrous metallurgy, and electric power generation.
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