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Series Products Of Silicon Nitride Combined With Silicon Carbide

Silicon Nitride Bonded SiC Brick for Non-ferrous Metallurgy, Blast Furnace and Ceramic Industries
High quality silicon carbide refractory products have been developed by Zhengzhou Sunrise Refractory Co., Ltd. featuring high strength, high thermal conductivity, good thermal shock resistance and corrosion resistance etc. The main properties have been tested and evaluated by independent testing labs, and the results are good. So far the products have been approved by a decade of large companies abroad, over 80% of output have been supplied to more than 10 countries and regions, especially in Europe and America. Meanwhile the products have been supplied to many major enterprises in China such as nonferrous metallurgy industry and so on. As substitute of similar imported products, four varieties in this series have won the title of national grade high-tech product. It is the best choice as the material used for blast furnace and boiler of fluidization furnace in I & S and power industries.

Physical and Chemical Index of Silicon Nitride Bonded SiC Brick


Silicon Nitride Bonded SiC Brick

SiC,  %  ≥ 73
Si3N4, %  ≥ 22
Fe2O3, %  ≤ 0.45

Bulk density


Apparent porosity






Room temp.




(0.2MPa, 0.6%)

Refractoriness under load




Thermal shock resistance, cycles (Water quenching at 1100℃) 30

Main Application

1. Mainly used as side wall lining for Al electrolysis cell, burner for Al refining furnace, garbage destructor, etc.
2. Mainly used for lower part of stack, bosh, belly lining of blast furnace and boiler linings of fluidization furnace, etc.
3. Mainly used as kiln furniture such as deck and pillars for industries of ceramics, electro-ceramics and abrasive wheel.
4. Mainly used as heat exchange pipe for high temperature kilns, heater for Al refining furnaces, tuyere sleeve for blast furnace, etc.



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