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Black Silicon Carbide

Black silicon carbide is produced by composition of silicon and carbon as two basic materials in high temperatures in electric resistance furnace.
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  • 0-1-3-5-8mm

  • SEPPE

  • 284920

Introduction

Black Silicon Carbide is the product of silicon quartz sand and petroleum coke electrofused at high temperature in an electrical resistance furnace. The grains of Black Silicon Carbide are hexagonal crystals that are extremely hard, sharp, and friable, and have outstanding electrical and thermal conductivity and low thermal expansion. Black silicon carbide is – after diamond and boron carbide – the third-hardest mineral in the world. It is characterised by high hardness, good mechan ical resistance, good electrical and heat conductivity and high temperature of chemical decomposition. Chemically, black silicon carbide is extremely resistant and able to withstand the strongest alkalis and acids. Silicon carbide is highly resistant to thermal shock and oxidizing effects of the air. Black silicon carbide is a chemical compound with permanent and stable character. In addition to being used as a blasting medium and abrasive, it is also used as an aggregate for the production of non-slip, wear-resistant and conductive floor coachings.

Silicon Carbide is widely used in cutting and lapping both very hard and very soft materials. Its excellent cutting ability ranges from such materials as marble, porcelain and carbide, to aluminum, copper, brass, cast iron, plastic, glass and quartz. Its exceptional hardness and sharpness enables it to cut rapidly and resist wear.


GradeSiCF.CFe2O3Moisture
SiC 9898%min0.5%max0.5%max0.2%max
SiC 97.597.5%min0.8%max0.9%max0.2%max
SiC 9797%min0.8%max1.2%max0.2%max
SiC 9595%min1.0%max1.3%max0.2%max
SiC 9393%min1.8%max1.6%max0.2%max
SiC 9292%min1.8%max1.7%max0.2%max
SiC 9090%min2.0%max1.8%max0.2%max
SiC 8888%min2.3%max2.0%max0.2%max
SiC 8686%min2.4%max2.0%max0.2%max


Physical Properties
Hardness9.2Mohs
Melting Point2300℃
Working Temperature1900℃
Specific Gravity3.2-3.45g/cm3
Bulk Density1.2-1.6g/cm3
ColorBlack
Elasticity Modulus58-65x106psi
Coefficient Of Thermal Expansion3.9-4.5 x10-6/℃
Thermal Conductivity71-130 W/m.K
Grains Size0-1mm, 1-3mm, 3-5mm, 5-8mm,
Powder Size325 mesh, 400 mesh, 600 mesh, 800 mesh, 1000 mesh,
Grits Size#24, #36, #46, #60, #80, #100, #120, #180, #220, #240