Green Silicon Carbide

Product Description »

Green Silicon Carbide is produced in an electric resistance furnace from quartz sand, petroleum coke and salt at high temperature. It's semi-transparet in green color with friability, high purity and high hardness. It's suited for grinding hard, brittle and non-metallic such as cemented carbides, optical glass, ceramics, etc.

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 Alkalies
Attcked at high temperature by alkalles and iron xide

Oxidation-reduction effects
Starts to oxide slowly at 800aiC. No reduction

True Density (g/cm3)
3. 20

Hardness
Knoop (kg/cm2) 2500-2900
Mohs 9. 5

Color
Green

Color after firing
Green

Decomposition point
2300oC

Max Usable temperature
1540oC in air

Specific heat (cal/g. OC )
0oC 0. 14
500oC 0. 28
1000oC 0. 13


Coefficient of thermal conductivity (cal/cm2. Sec. OC )
600oC 0. 080
800oC 0. 061
1000oC 0. 051

Electrical resistivity(Wcm)
25oC 50
100oC 46. 5
400oC 26. 6
800oC 7. 8
1400oC 0. 65


Coefficient of liner expansion (x10-6)
25oC -500oC 4. 63
25oC -1000oC 5. 12
25oC -1500oC 5. 48
25oC-2000oC 5. 77
25oC-2500oC 5. 94


Available Sizes
10-F220, F230-1200, W63-W5, JIS240-JIS3000.
Other sizes can be also available according to customers requirements

Applications
Grinding wheels, Electrical, Coated tools, Heatingelements, Polishing, Ceramic, Lapping, Refractory.

Magnetic Material Content (% by weight)

Grit Magnetic material Content
16#-30# <0. 0180
36#-60# <0. 0150
70#-120# <0. 0120
150#-220# <0. 0100

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