1.Product Description
black silicon carbide abrasive 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℃ | |
Name | Size | Chemical Composition(%) | |||
SIC | F.C | Fe2O3 | |||
Black Silicon Carbide | F | F4-F90 | 99.00min | 0.30max | 0.40max |
F100-F150 | 99.00min | 0.35max | 0.50max | ||
F180-F220 | 98.50min | 0.40max | 0.55max | ||
F230-F280 | 98.20min | 0.45max | 0.55max | ||
F320-F500 | 98.00min | 0.50max | 0.60max | ||
F600-F800 | 97.50min | 0.60max | 0.60max | ||
F1000-F1200 | 97.00min | 0.60max | 0.70max | ||
P | P12-P100 | 99.00min | 0.30max | 0.40max | |
P120-P150 | 99.00min | 0.35max | 0.50max | ||
P180-P220 | 98.50min | 0.40max | 0.55max | ||
P230-P360 | 98.20min | 0.45max | 0.55max | ||
P400-P1000 | 98.00min | 0.50max | 0.60max | ||
P1200-P1500 | 97.50min | 0.60max | 0.60max | ||
P2000-P2500 | 97.00min | 0.60max | 0.70max | ||
