Microgrit SIC Black Silicon Carbide F120 F150 F180

/MT

Black emery  silicon carbide grits is an artificial abrasive made of carbonaceous materials and siliceous materials through high-temperature smelting in a large arc furnace.  The carbonaceous material is petroleum coke or coal coke. And the siliceous material always goes quartz sand. At the same time, the smelting process will also add wood chips, salt, and other additives.

The purity of the silicon carbide of the first-grade black silicon carbide is more than 98%. The color is shiny, and the reflection shows multicolored colors. Generally, the higher the purity of silicon carbide, the better its physical and chemical properties. The hardness of black silicon carbide is slightly lower than that of green silicon carbide, with a Mohs hardness of 9.2-9.3. Black silicon carbide grit is produced by crushing, washing, screening, magnetic separation, and other processes from first-grade silicon carbide blocks. It has the characteristics of high purity, high cleanliness, high packing density, and low impurities.

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Typical physical properties of Microgrit SIC Black Silicon Carbide F120 F150 F180

 

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

 

Typical physical properties of Microgrit SIC Black Silicon Carbide F120 F150 F180
SiC98.75%
Fe2O30.18%
F.C0.14%
Magnetic content0.011%

 

Product Feature of Microgrit SIC Black Silicon Carbide F120 F150 F180
  1. Good oxidation resistance and chemical stability at high temperatures.
  2. High hardness with Mohs 9.2-9.3. Even at 2000℃, it’s still getting high strength.
  3. Excellent toughness.
  4. Low thermal conductivity. So it can resistant to thermal shock.
  5. High purity min SiC content is 98.5%.
  6. High bulk density.
  7. Black silicon carbide grit is washed by water before the milling process, so there are few impurities.

 

Application of Microgrit SIC Black Silicon Carbide F120 F150 F180

Fiber Sanding disc

Sintered silicon carbide ceramic

black silicon carbide grinding wheel such as cup grinding wheel

Sanding sheet

Semi flex grinding disc for marble, granite.

Other abrasive tools.

 

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