Nitrid Siliciumcarbid Brick

Nitride Bonded Silicon Carbide Brick good corrosion resistance good oxidation resistance high hot strength Using high-grade silicon carbide and industrial silicon powder as starting materials adopting technologies of vibration pressing moulding and step high pressure nitridation sintering .This product has good themal conductivity ,good corrosion resistance ,mainly used in aluminium,iron&steel. ItemN-Sic BrickN-Sic ballBulk Density (g/cm3) 2.6-2.752.3-2.55Apparent Porosity (%) 13-17---Cold Crushing Strength (Mpa) 150-200---Modulus of Rupture (Mpa) 42-52---Thermal Expansion (%) ≤0.42---Thermal Conductivity Thermal linear method W/m.k 20---Laser method W/m.k 18---Thermal Shock Resistance (cycle) ≥50---Beta Ratio ---≥90Cryolite resistance Excellent---Chemical Analysis SiC (%) 73-81---Si3N4 (%) 16-25≥93Fe2O3 (%) ≤0.3≤1Si (%) ≤0.2---