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KT Refractories US Company

Sic Bricks, Silicon carbide brick SiC Bricks, Silicon carbide brick

Silicon Carbide bricks

Silicon Carbide bricks, Silicon Nitride Bonded Sic Brick / SiC brick is made of high quality synthetically made silicon carbide grains (SiC) and selected bonding components, including nitride, Si3N4.

Silicon Carbide bricks has great features such as high thermal conductivity, high thermal shock resistance, low thermal expansion coefficient, high corrosion resistance, high bending strength, and excellent resistance to liquid aluminum erosion capability.

SiC brick is particularly ideal for application in high temperature furnaces and in waste incineration plants.

The Si3N4 SiC blocks are widely used as lining bricks of large aluminum electrolytic cell. Using nitride bonded silicon carbide products enlarges the tank capacity, improves the thermal conductivity, enables rapid cooling, and increases the tank production capacity at the same time. Alumina and cryolite of eutectic content can form on bricks' surface, which can protect the tank lining work layer, and prolong the tank's service life. Therefore, silicon nitride bonded silicon carbide bricks are widely used in the aluminum industry.

KT Refractories distributes Silicon Carbide bricks of the best quality at the most competitive prices worldwide.

Call 1-877-365-2995 to order Silicon Carbide bricks, and our fast, responsive customer service and reliable delivery service will save you time and money!

Typical Silicon Carbide bricks Technical Data Specs

Silicon Carbide Bricks

Indexes Silicon Carbide Bricks
Si3N4-SiC Si2ON2-SiC Sialon-SiC
SiC % min 72 72 72
Si3N4 % min 25 20 25
Free Si % max 0.4
0.2MPa RUL starting temperature °C min 1750 1650 1750
Typical Apparent Porosity (%) 15 18 14
Cold Crushing Strength MPa 150 150 150
Rupture Strength MPa (1400°C × 0.5h) min 45 30 55
Room Temperature Rupture Strength MPa min 50 30 45
Resistance to thermal shock (>= Times) (1100°C Water Cooled) 40 40 40

Silicon Carbide Bricks (SiC)

BAND Properties SC-1 SC-90
Apparent Porosity (%) ≤18 13.5 ≤17 14.0
Bulk Density ≥2.55 2.65 ≥2.45 2.60
Cold Crushing Strength (kg/cm2) ≥700 1100 ≥800 1100
Chemical Composition
SiC ≥88.0 90.0 ≥90.0 91.7