Black Silicon Carbide Is Suitable For Refractory And Grinding Applications

Black Silicon Carbide is produced by fusion of quartz sand, anthracite and high-quality silica in electric resistance furnace. The SiC blocks with most compact crystal structure near the core are carefully selected out as raw materials. Through perfect acid and water washing after crushing, the carbon content reduced to the minimum and then the shining pure crystals are obtained. It is brittle and sharp, and has certain conductivity and thermal conductivity.

Products Details

Black Silicon Carbide is produced by fusion of quartz sand, anthracite and high-quality silica in electric resistance furnace. The SiC blocks with most compact crystal structure near the core are carefully selected out as raw materials. Through perfect acid and water washing after crushing, the carbon content reduced to the minimum and then the shining pure crystals are obtained. It is brittle and sharp, and has certain conductivity and thermal conductivity. It has stable chemical properties, high conductivity coefficient, low coefficient of thermal expansion and excellent wear-resistance, and is suitable for refractory and grinding applications.Black Silicon Carbide is used to make various bonded abrasives, for grinding and polishing stones, and for processing metal and non-metallic materials with low tensile strength, such as gray cast iron, brass, aluminum, stone, leather, rubber, etc.

Items

Unit Index

Chemical Composition

For abrasives
Size   SiC F.C Fe2O3
F12-F90 % 98.5min 0.5max 0.6max
F100-F150 % 98.5min 0.3max 0.8max
F180-F220 % 987.0min 0.3max 1.2max
For refractory
Type Size   SiC F.C Fe2O3
TN98 0-1mm 1-3mm 3-5mm 5-8mm 200mesh 325mesh % 98.0min 1.0max 0.8max
TN97 % 97.0min 1.5max 1.0max
TN95 % 95.0min 2.5max 1.5max
TN90 % 90.0min 3.0max 2.5max
TN88 % 88.0min 3.5max 3.0max
TN85 % 85.0min 5.0max 3.5max
Melting point 2250
Refractoriness 1900
True density g/cm3 3.20min
Bulk density g/cm3 1.2-1.6
Mohs hardness --- 9.30min
Colour --- Black

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