Black silicon carbide for refractories Black silicon carbide(sic) we make has high hardness, low expansion rate, good chemical stability, good heat conductivity and is widely used in refractory bricks, unshaped refractories, special ceramic products, precision casting, foundry and metallurgical industry. Physical and chemical properties True gravity: ?3.15 g /cm3 Bulk density: 1.20-1.60 g / cm3 Mosh hardness: ?9 Color: black Melting point: 2700 celcius degree Sizes: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 100mesh, 200mesh, 325mesh or according to request Applications of refractory grade black silicon carbide Various shaped and unshaped refractory produccts Used as semi-conductor antioxidant Used as deoxidizer in steel making industry to improve steel quality \production of electric heating element silicon carbon rod Inner coating on impeller of hydraulic turbine to improve its durability
