Black silicon carbide is produced at high temperature in an electric resistance type furnace with quartz sand and petroleum coke as its main raw materials. Its hardness is between fused alumina and synthetic diamond. Mechanical intensity of it is higher than fused alumina. It is brittle and sharp and sharp and heat conductivity in some degree. The abrasive made of it are suitable for working on cast iron, non-ferrous metal, rock, leather, rubber, etc It is also broadly used as refractory material and metallurgical additive.
TYPICAL CHEMICAL ANALYSIS | TYPICAL PHISICAL PROPERTIES | ||
SiC | ≥98% | Hardness: | Mohs:9.2 |
SiO2 | ≤1% | Melting Point: | Sublimes at 2250 ℃ |
H2O3 | ≤0.5% | Maximum service temperature: | 1900℃ |
Fe2O3 | ≤0.3% | Specific Gravity: | 3.2-3.45 g/cm3 |
F.C | ≤0.3% | Bulk density(LPD): | 1.2-1.6 g/cm3 |
Magnetic content | ≤0.02% | Color: | Black |
Particle shape: | Hexagonal | ||
Available Sizes
P-microgrits | P240 P280 P320 P360 P400 P500 P600 P800 P1000 P1200 P1500 P2000 P2500 P3000 P4000 P5000 | ||
FEPA | F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500 F2000 | ||
JIS | 240# 280# 320# 360# 400# 500# 600# 700# 800# 1000# 1200# 1500# 2000# 2500# 3000# 4000# 6000#8000# | ||
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