Refractory Grade Silicon Carbide
Chemical inertness at high temperatures, high resistance to abrasion and to thermal shock make silicon carbide an attractive material for several refractory applications. Typical examples are kiln furniture, aluminium reduction cells, incinerators, bricks and monolithics for blast furnaces, runners, tap hole clays, zinc furnaces, crucibles for melting furnaces as well as solutions for waste-to-energy applications.
Our silicon carbide crude is produced by mixing high purity quartz sand and petroleum coke in an electric resistance furnace at temperatures around 2500°C. Once the crude has been produced, it undergoes processing crushing, milling and precision water classification process and air flow classification into finished grains and powders.
Silicon carbide for refractory applications is available in various SiC quality grades and particle shape and size fractions. These characteristics are adapted to the specific refractory application and customer need.
Applications:
Usage Important Properties Silicon Carbide Opening valves for molten metal vessel Thermal shock resistance, Erosion resistance, Corrosion resistance ✅ Industrial kiln furniture Thermal shock resistance ✅ Feed nozzles for fluidized bed furnace Thermal shock resistance, Abrasion resistance ✅ Crucibles for metallurgy Thermal shock resistance, Corrosion resistance ✅ *High quality air purified black silicon carbide, particularly suitable for refractory applications.
SiC Free C Fe₂O₃ Fractions ≥98.5% max 0.16% max 0.17% 100F, 200F, 325F, ... ≥98% max 0.3% max 0.2% 0-0.35, 0-0.5, 0-1, 0.5-1.43, 1-3, 1.43-2.5(mm) and 200F, 325F ... ≥97% max 0.5% max 0.3% 0-0.35, 0-1, 0.2-0.5, 0.2-1, 0.2-2, 0.5-1, 0.5-2, 1-2, 1-3, 2-3, 3-5(mm) and 4/8, 6/8, 6/10, 8/16, 16/35, 30/80, 35/70, 60/90, 70/90, 100F, 200F, ... ≥95% max 1.0% max 0.7% 0-0.06, 0-0.1, 0-0.2, 0-0.35, 0-10(mm) and 100F, 200F, 325F and DCF, ... ≥90% max 3.0% max 2.0% 1-5(mm), 200F and DCF, ... *We can offer customized as per specific requirements.
Packaging:
25 kg paper bags or 1000kg big bags on pallets.
