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Abrasives Green Silicon Carbide powder

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Grit: 8000#
Micro hardness: 2940-3300 kg/mm2
Melting point: 2600℃
Price: 2800.00USD/Ton
Min.Order: 10 Ton
Supply 100 Ton
Delivery: Shipment within 20 days since the date of payment
Address: Henan Zhengzhou
Valid until: Never Expire
Updated on: 2020-02-26 23:40
Hits: 2
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Details
 Green Silicon Carbide is produced in electric resistance furnace from quartz sand, petroleum coke and salt in high temperature. It’s semi-transparent in green color with crystal structure, high hardness and strong cutting ability, stable chemical characteristics, good thermal conductivity. It’s suited for grinding hard, brittle and non-metallic such as cemented carbides, optical glass, ceramics, etc.


Advantage of SICHENG Green silicon carbide:

 

1. Low density

2. High strength

3. High temperature strength (reactive bonding)

4. Oxidation resistance (reaction bonding)

5. Excellent thermal shock resistance

6. High hardness and good wear resistance

7. Excellent chemical resistance

 

 

 

Application: 

 

For abrasive: Lapping, Polishing , Coatings, Grinding , Pressure blasting.

For refractory: Refractory media for casting or metallurgical linings ,Technical Ceramics.

For new-type application: Heat exchangers ,Semiconductor process equipment , Liquid filtration.

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 800°C. No reduction

True Density (g/cm3)

3.20

Hardness  

Knoop (kg/cm2)

2500-2900

Moh’s

9.5

Color

Green

Color after firing

Green

Decomposition point

2300°C

Max Usable temperature

1540°C  in air

Specific heat (cal/g.oC )

0°C

500°C

1000°C

0.14

0.28

0.13

Coefficient of thermal conductivity (cal/cm2.sec.oC)

600°C

800oC

1000°C

0.080

0.061

0.051

Electrical resistivity(Wcm)

25°C

100°C

400°C

800°C

1400°C

50

46.4

26.6

7.8

0.65

Coefficient of liner expansion (x10-6)

25°C -500°C

25°C -1000°C

25°C-1500°C

25°C-2000°C

25°C-2500°C

4.63

5.12

5.48

5.77

5.94

 

 

 

 

 

 

 

 

Chemical Composition (% by weight)

Grit sizes

SiC

F.C

Fe2O3

20# - 90#

99.0 min

0.20 max

0.20 max

100# - 180#

98.5 min

0.25 max

0.50 max

220# - 240#

97.5 min

0.25 max

0.70 max

280# - 400#

97.0 min

0.30 max

0.70 max

500# - 600#

95.5 min

0.30 max

0.70 max

800# - 1200#

94.0 min

0.30 max

0.70 max




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