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Sic Black Silicon Carbide Grit

Sic Black Silicon Carbide Grit

Packaging Details : 25kg/bag(include inner bag), 1 ton/big bag.
Payment Terms : PayPal, L/C, T/T
MOQ : 1 Metric Ton
Supply Ability : 500 Metric Ton / Month
Delivery Time : 5 working days after deposit received
SIC : 99%
Brand Name : LD
Specific Weight : 3.2 g/cm3
Color : Black
Chemical nature : Slight acid
Decomposition point : 2200âă
Fe2O3 : 0.4%
Moh's : 9.5
Knoop(kg/cm2) : 2200-2500
Crystal Form : Alpha SiC hexagonal system
C Free : 0.30%
Place of Origin : China
Category : Silicon Dioxide
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1.Product Description
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
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℃

Grit sizes

SiC

F.C

Fe2O3

12# - 90#

98.6 min

0.30 max

0.40 max

100# - 180#

98.15 min 

0.35 max

0.50 max

220# - 240#

98.00 min

0.40 max

0.55max

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.
 

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