sic black silicon carbide grit 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
Alpha SiC hexagonal system
Reaction with acids
Very slight surface action with hydrofluoric acid
Reaction with Alkalis
Attacked at high temperature by alkalis and iron oxide
Starts to oxide slowly at 800oC. No reduction
True Density (g/cm3)
Color after firing
12# - 90#
100# - 180#
220# - 240#
1. Large melting furnace, longer melting time, lead to more
crystallization, bigger crystals, higher purity and less
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.