Black Silicon Carbide Abrasive Grit
Products Description
Color: Black
Particle Shape: Blocky, sharp edged
Friability: Semi-friable
Melting Point: Dissociates at Approx. 2500°C
True Density: 3.20g/cm³ Min
Hardness: 2550kg/mm, 9.1 Mohs scale
For abrasives: FEPA F12-F1200, FEPA P12-P2500
For refractory: 0-1mm, 1-3mm, 3-5mm…-200mesh, -325mesh…
Grade: SIC-98, SIC-95, SIC-90, SIC-88
Black silicon carbide is mainly made from quartz sand, petroleum coke as the main raw materials and smelted by electric resistance furnace at high temperature. During this high temperature process the crystalline is formed, the grains are extremely hard, sharp, and friable, with many excellent features like as follows:
Low density
High hardness
Good high temperature strength
Oxidation resistance
Excellent thermal shock resistance
High hardness and wear resistance
Excellent chemical resistance
Low thermal expansion and high thermal conductivity
Physical Properties:
Crystal Form: Alpha SiC
Particle Shape: Blocky, sharp edged
Color: Black
Friability: Semi-friable
Melting Point: Dissociates at Approx. 2500°C
Bulk Density: 1.20-1.60g/cm³
True Density: 3.20g/cm³ Min
Mohs Hardness: 9.1
Knoop hardness: 2550kg/mm²
Chemical Composition:
|
Type & Grade |
Grit Size |
Chemical Composition (%, by weight) |
||
|
SiC |
F.C |
Fe2O3 |
||
|
C-F |
F12~F90 |
≥98.5 |
≤0.10 |
≤0.15 |
|
F100~F220 |
≥98.0 |
≤0.20 |
≤0.30 |
|
|
F240-F1200 |
≥97.5 |
≤0.30 |
≤0.40 |
|
|
C-P |
P12-P100 |
≥98.5 |
≤0.10 |
≤0.15 |
|
P120~P220 |
≥98.0 |
≤0.20 |
≤0.30 |
|
|
P240-P2500 |
≥97.5 |
≤0.30 |
≤0.40 |
|
|
C-R |
Macro size: 0-1mm,1-3mm ,3-5mm,5-8mm.... Fine Powder: -200mesh, -325mesh |
≥97% |
≤0.30 |
≤0.40 |
|
≥95% |
≤0.60 |
≤0.80 |
||
|
≥90% |
≤2.50 |
≤2.50 |
||
|
≥88% |
≤3.00 |
≤3.00 |
||
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