Ftong Industry Co. Ltd
Ftong Industry Co. Ltd
[
Henan,
China (Mainland) ]
Henan, China (Mainland)
Ftong
Grain
Blocky
F12 - F220. or any other sizes by customer’s requirement.
Polishing / Lapping
Black
Grinding
Ton
1
Qingdao
15/ 20 days
25kgs/bag or 1000kgs / big bag or by customer’s request.
1500 / Month
L/C, D/P, T/T
Black Silicon Carbide is produced in an electric resistance furnace from quartz sand and petroleum coke or anthracite at high temperature. The hardness and sharp particle of this material make it suitable for manufacturing of grinding wheels, coated products, wire saws, superior refractory materials and deoxide as well as for lapping, polishing and blasting.
Applications:
Grinding wheels
Coated tools Heating elements
Polishing Ceramic
Lapping Refractory
Chemical & Physical Properties
|
Crystal Form |
Alpha SiC hexagonal system |
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Chemical nature |
Slight acid |
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|
Reaction with acids |
Very slight surface action with hydrofluoric acid |
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Reaction with Alkalis |
Attacked at high temperature by alkalis and iron oxide |
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|
Oxidation-reduction effects |
Starts to oxide slowly at 800°C. No reduction |
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|
True Density (g/cm3) |
3.20 |
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|
Hardness |
Knoop(kg/cm2) |
2200-2500 |
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|
Moh's |
9.5 |
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Color |
Black |
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Color after firing |
Black |
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|
Decomposition point |
2200°C |
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Max Usable temperature |
1540oC in air |
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|
Specific heat (cal/g.°C) |
0°C |
500°C |
1000°C |
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|
0.14 |
0.28 |
0.13 |
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|
Coefficient of thermal conductivity (cal/cm2.sec.°C) |
600°C |
800°C |
1000°C |
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|
0.080 |
0.061 |
0.0510 |
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|
Electrical resistivity ( Wcm) |
25°C |
100°C |
400°C |
800°C |
1400°C |
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|
50 |
46.4 |
26.6 |
7.8 |
0.65 |
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|
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 |
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|
4.63 |
5.12 |
5.48 |
5.77 |
5.94 |
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|
|
SiC |
F.C |
Fe2O3 |
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|
12# - 90# |
98.5 min |
0.20 max |
0.60 max |
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|
100# - 180# |
98.0 min |
0.30 max |
0.80 max |
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|
220# - 240# |
97.0 min |
0.30 max |
1.20 max |
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Available sizes:
F12 - F220. or any other sizes by customer’s requirement.
Packing way:
25kgs / bag or 1000kgs / big bag or by customer's request.
