Futong Imp & Exp Inc.
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  • Contact Person : Mr. Sheng Michael
  • Company Name : Futong Imp & Exp Inc.
  • Tel : 86-371-63691216
  • Fax : 86-371-63691212
  • Address : Henan,Zhengzhou,B-1708, International Business Center, No. 72, Nongye Street, Zhengzhou City, Henan Province, China
  • Country/Region : China
  • Zip : 450003

Popular in Japan and Korea--Green Silicon Carbide For Abrasives and Refractory

Popular in Japan and Korea--Green Silicon Carbide For Abrasives and Refractory
Product Detailed
Related Categories:Abrasives
For grinding wheels,heating elements,coated tools,refractory,polishing,electrical,lapping,ceramic Many years experiences.

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.

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

Magnetic Material Content (% by weight)

Grit

Magnetic material Content

16#-30#

<0.018

36#-60#

<0.015

70#-120#

<0.012

150#-220#

<0.010

Applications

Grinding wheels       

Heating elements

Coated tools           

Refractory

Polishing             

Electrical

Lapping              

Ceramic

Available Sizes: F10-F220, F230-F1200, W63-W5, JIS240-JIS3000. Other sizes can be also available according to customers' requirements.  

Popular in Japan and Korea--Green Silicon Carbide For Abrasives and Refractory



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