Black Silicon Carbide powders and grains (SiC) are manufactured in a variety of sizes to meet all of our customer’s needs. Black Silicon Carbide, also known as carborundum, is ideal for a wide variety of applications including vitrified and resinoid grinding wheels, friction, blasting, compounds, lapping, polishing, non-slip, wiresawing silicon and quartz, and many more.
Black Silicon Carbide (SiC) is an extremely hard (Mohs 9.1 / 2550 Knoop) man made mineral that possesses high thermal conductivity and high strength at elevated temperatures (at 1000°C, SiC is 7.5 times stronger than Al2O3). SiC has a modulus of elasticity of 410 GPa, with no decrease in strength up to 1600°C, and it does not melt at normal pressures but instead dissociates at 2600°C.
Typical Physical Properties
Hardness: 2550 Knoop; Mohs 9.1
Melting Point: Sublimes at 4712°F (2600°C)
Particle Shape: Blocky or angular with sharp edges
Available Split Sizes
46/70, 54/70, 60/90, 100/120, 120/220, 150/220, 180/240, 800/F
Available Single Grit Sizes
Macro: 8 grit thru 240 grit (ANSI); P12 thru P220 (FEPA)
Micro: F280 grit thru F1200 grit (FEPA); P240 thru P3000 (FEPA)
Other sizes available upon request