Main Features

• High Hardness: Silicon carbide is one of the hardest materials next to diamond, capable of withstanding extreme wear.
• High Strength: Excellent bending and fracture resistance performance.
• Lightweight: Silicon carbide bricks are less than half the weight of metal alloys, about 40% of steel, and roughly the same as aluminum.
• High Density: The theoretical density of reaction bonded silicon carbide is up to 3.21 g/cm³, with a minimum density of 3.0 g/cm³.
• Corrosion Resistance: Excellent resistance to acid and alkali corrosion, suitable for hot gas and liquid environments, oxidizing and corrosive atmospheres.
• High Temperature Resistance: Stable physical and chemical properties at high temperatures.
• Wear Resistance: Ultra-high hardness and density make it ideal for parts subject to high wear and sliding wear.

Silicon carbide bricks are refractory materials primarily made from silicon carbide (SiC). They have a Mohs hardness of 9 and are relatively stable against acidic slags. These bricks contain 72% to 99% SiC and are categorized into various types based on the bonding material, such as clay-bonded, Si3N4-bonded, Sialon-bonded, β-SiC-bonded, Si2ON2-bonded, and recrystallized silicon carbide bricks. They are mainly used in the manufacturing of crucibles for non-ferrous metallurgy, aluminum casting molds, electric furnace linings, and heat exchangers.

Refractory products made primarily from silicon carbide (SiC). The content of SiC ranges from 72% to 99%. Generally, black silicon carbide (with a SiC content of over 96%) is used as the raw material, to which binders (or no binders) are added, followed by processes such as mixing, forming, and firing to produce the bricks. The main crystalline phase is silicon carbide. The main types include oxide-bonded silicon carbide bricks, carbon-bonded silicon carbide bricks, nitride-bonded silicon carbide bricks, self-bonded silicon carbide bricks, recrystallized silicon carbide bricks, and semi-silicon carbide bricks. These products are characterized by good wear resistance, erosion resistance, high-temperature strength, good thermal shock stability, high thermal conductivity, and low coefficient of thermal expansion, making them high-performance refractory materials.

Product Specifications

• Size: Customizable according to customer requirements
• Thickness: Selectable based on specific application scenarios
• Shape: Customizable to different shapes

Standards

• GB/T 16545-1996
• ASTM C863-83

Applications

• Lining for coal mills and separators in power plants
• Lining for mills and separators in cement plants
• Crushers, mills, and conveying systems in the mining industry
• Taphole and slag handling systems in steel plants
• High-temperature reactors and separators in the petrochemical industry

Silicon carbide bricks have a high thermal conductivity, good wear resistance, thermal shock resistance, and corrosion resistance. Therefore, silicon carbide bricks have a wide range of industrial applications. They can be used for the lining of steel ladles in metallurgy, nozzles, plugs, the bottom and belly of blast furnaces, and water-cooled sliding rails in heating furnaces; distillation apparatus, rectification tower trays, side walls of electrolytic cells, and crucibles for melting metals in non-ferrous metal smelting; roof boards and flame retardant materials in kilns in the silicate industry; oil and gas generators, and organic waste incinerators in the chemical industry; crucibles for high-tech ceramics, linings for aluminum electrolytic cells, molten aluminum ducts, and kiln furniture for ceramic kilns, the lower part of large and medium-sized blast furnaces, furnace waist and belly, linings for aluminum refining furnaces, and linings for zinc distillation pots, etc.