1.Product Description
black silicon carbide powder is the hardest blasting media available. High-quality silicon carbide media is manufactured to a blocky grain shape that splinters. The resulting silicon carbide abrasives have sharp edges for blasting. Silicon carbide has a very fast cutting speed and can be recycled and reused many more times than sand. The hardness of silicon carbide allows for much shorter blast times relative to softer blast media.

2.Chemical & Physical Properties
Crystal Form,Alpha SiC hexagonal system
Chemical nature,Slight acid
Reaction with acids,Very slight surface action with hydrofluoric acid
Reaction with Alkalis,Attacked at high temperature by alkalis and iron oxide
Oxidation-reduction effects ,Starts to oxide slowly at 800oC. No reduction
True Density (g/cm3) 3.20
Hardness Knoop(kg/cm2) 2200-2500
Moh's 9.5
Color Black
Color after firing Black
Decomposition point 2200 Degrees Celsius
Grit sizes
SiC content=99.00%
F.C content=0.30%
Fe2O3 content=0.30%

3. Advantages
1. Large melting furnace, longer melting time, lead to more crystallization, bigger crystals, higher purity and less impurities.
2. Good hardness, longer life.
3. Chemical washed and water washed, good cleanness.
4. Special treated products get higher purity, better toughness, and better grinding effect.