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Black silicon carbide

Black Silicon carbide Grain is an extremely hard and 99% SiC carborundum grit. As an abrasive material, it can work well for abrasive blasting, surface treatment, grinding on hard material such as marble, glass, jade, etc.

$1,200.00 $1,100.00 /MT

Black silicon carbide

Black Silicon carbide Grain is an extremely hard and 99% SiC carborundum grit. As an abrasive material, it can work well for abrasive blasting, surface treatment, grinding on hard material such as marble, glass, jade, etc.

Silicon Carbide is produced by a process involving the electrochemical reaction of silica(SiO2)-in the form of quartz mixed with Carbon(C) in the form of raw petroleum coke. The stoichiometric mixture is reacted in an electrical resistance furnace at a temperature up to 2500 centigrade to yield high-quality crystals. The process is large furnace technology with a graphite electrode in the furnace center.  The large crystals are then segregated, crushed, cleaned of magnetic impurities in high-intensity magnetic separators, and classified into narrow size fractions to suit the end-use. Dedicated lines produce products for different applications.

Black silicon carbide Properties:

  1. High hardness and good grinding ability
  2. low density
  3. low thermal expansion, oxidation resistance
  4. excellent chemical resistance
  5. high thermal shock resistance
  6. high wear and hardness resistance
  7. high strength, high temperature resistance
  8. high temperature strength

Black silicon carbide Applications:

Blasting, surface Treatment, Rust Removal

Polishing and deburring

Grinding wheels

Wear resistance parts

TYPICAL CHEMICAL ANALYSIS
SiC≥98%
SiO2≤1%
H2O3≤0.5%
Fe2O3≤0.3%
F.C≤0.3%
Magnetic content≤0.02%
TYPICAL PHYSICAL PROPERTIES
Hardness:Mohs:9.2
Melting Point:dissociated at about 2300 °C
Maximum service temperature:1900℃
Specific Gravity:3.2-3.45 g/cm3
Bulk density(LPD):1.2-1.6 g/cm3
Color:Black
Particle shape:Hexagonal
Modulus of Elasticity58-65×10psi
Coefficient of Thermal Expansion3.9-4.5 x10-6/ ℃
Thermal Conductivity71-130 W/MK

 

AVAILABLE SIZES

F-macrogrits sizes bonded
Grit designationMean diameter in um
F121765
F141470
F161230
F201040
F22885
F24745
F30625
F36525
F40438
F46370
F54310
F60260
F70218
F80185
F90154
F100129
F120109
F15082
F18069
F22058

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