What is Black Silicon Carbide?
Black Silicon Carbide, also known as Black SiC, is primarily composed of silicon and carbon. It is produced through the high-temperature fusion of quartz sand and petroleum coke in an electric resistance furnace.
The powder typically consists of small, sharp-edged particles with a crystalline structure. Black silicon carbide is renowned for its high hardness. This property makes it an excellent abrasive material, which is suitable for applications requiring effective material removal.

Main Colors
- Black
Price
USD $1.54-4.53 / kg EXW
Packaging
25 kg bags or customized packaging on request
Physical Properties
Item | Value |
---|---|
Appearance | Black powder |
Mohs Hardness | 9.2 |
Bulk Density | ≥1.45-1.56g/cm3 |
True Density | 3.12g/cm3 |
Melting Point | 2250°C |
Crystal | Hexagonal |
SiC CAS No. | 409-21-2 |
HS Code | 2849200000 |
Chemical Composition(%)
Model | Particle Size | SiC | F.C. | Fe₂O₃ |
---|---|---|---|---|
C | F230–F280(#240-#360) | ≥98.30 | ≤0.25 | ≤0.25 |
F320–F500(#400-#800) | ≥98.10 | ≤0.25 | ≤0.30 | |
F600–F800(#1000-#1500) | ≥97.80 | ≤0.25 | ≤0.30 | |
F1000–F1200(#2000-#2500) | ≥97.50 | ≤0.25 | ≤0.30 | |
#3000-#6000 | ≥96.00 | ≤0.25 | ≤0.30 |
Particle Distribution(μm)
Particle Size | D0 | D3 | D50 | D94 |
---|---|---|---|---|
#240 | ≤127 | ≤103 | 58.6±3.0 | ≥40.0 |
#280 | ≤112 | ≤87.0 | 49.4±3.0 | ≥33.0 |
#320 | ≤98.0 | ≤74.0 | 41.1±2.5 | ≥27.0 |
#360 | ≤86.0 | ≤66.0 | 36.1±2.0 | ≥23.0 |
#400 | ≤75.0 | ≤58.0 | 30.9±2.0 | ≥20.0 |
#500 | ≤63.0 | ≤50.0 | 26.4±2.0 | ≥16.0 |
#600 | ≤53.0 | ≤43.0 | 21.1±1.5 | ≥13.0 |
#700 | ≤45.0 | ≤37.0 | 17.9±1.3 | ≥11.0 |
#800 | ≤38.0 | ≤31.0 | 14.7±1.0 | ≥9.00 |
#1000 | ≤32.0 | ≤27.0 | 11.9±1.0 | ≥7.00 |
#1200 | ≤27.0 | ≤23.0 | 9.90±0.80 | ≥5.50 |
#1500 | ≤23.0 | ≤20.0 | 8.40±0.60 | ≥4.50 |
#2000 | ≤19.0 | ≤17.0 | 6.90±0.60 | ≥4.00 |
#2500 | ≤16.0 | ≤14.0 | 5.60±0.50 | ≥3.00 |
#3000 | ≤13.0 | ≤11.0 | 4.00±0.50 | ≥2.00 |
#4000 | ≤11.0 | ≤8.00 | 3.00±0.40 | ≥1.30 |
#6000 | ≤8.00 | ≤5.00 | 2.00±0.40 | ≥0.80 |
Applications
- Ceramic, metal lapping, and polishing applications.
- SiC Sandpaper, grinding wheels, cut off tools, ceramic disc brakes.
- Bonded abrasive tool applications.
- Rock tumbling industries - Lapidary use, vibratory machines.
- Slicing of silicon carbide wafers.
- Finishing tough and hard materials.
- Slicing, lapping, and polishing glass and germanium wafers.
- Lapping of piston rings and gears.
- Grinding of nonferrous materials.
- Rock and stone polishing and engraving.
- Glass etching and glass carving industries.
