Product introduction of China supplier of black carborundum F46-F150 abrasive material
China supplier of black carborundum F46-F150 abrasive material HAIXU Abrasives specialized in the production of black carborundum grain and powder. The black carborundum is artifical synthetic material with ultra-hardness, high thermal conductivity, low expension rate and high temperature resistance. Silicon carbide obtain a vicker hardness of 28-33GPa. It is an extream hard grinding media just lower than diamond and boron carbide. It’s a hard and brittle abrasive material and suitable for grinding marble, granite, ceramic even jade and crystals.
Typical physical properties of China supplier of black carborundum F46-F150 abrasive material
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 Elasticity | 58-65×106 psi |
Coefficient of Thermal Expansion | 3.9-4.5 x10-6/ ℃ |
Thermal Conductivity | 60-200 W/MK |
Typical physical properties of China supplier of black carborundum F46-F150 abrasive material
Content | Guarantee value | Typical value |
SiC | ≥98% | 98.62% |
Fe2O3 | ≤0.2% | 0.18% |
F.C | ≤0.2% | 0.12% |
Magnetic content | ≤0.02% | 0.011% |
Product Feature of China supplier of black carborundum F46-F150 abrasive material
- High purity, the purity of black silicon carbide after pickling can reach 99%. The production process of black silicon carbide powder is hydraulic classification, with less impurities and high purity.
- Superior oxidation resistance and chemical stability: when heated to 1000 ℃ in the air, silicon carbide only oxidizes on the surface, forming a layer of silicon dioxide film, which can protect silicon carbide material from oxidation. When heated to above 1627 ℃, the oxidation resistance of silicon carbide will decline rapidly.
- High hardness: Mohs hardness of black silicon carbide is 9.2-9.3, slightly lower than that of green silicon carbide.
- The toughness of black silicon carbide is higher than that of green silicon carbide.
- The packing density is high, and the black silicon carbide particles produced by the shaping process are more rounded.
- It has high cleanliness and is washed twice after crushing, reducing the dust in the abrasive.
Application of China supplier of black carborundum :
- Silicon carbide fiber disc.
- Whetstone, abrasive brick, abrasive rob,abrasive segment.
- Resin bonded silicon carbide abrasive grinding wheels.
- Vitrified bonded silicon carbide abrasive mounted-point, cup wheel, bowl wheel,etc.
- Sanding wheel and sanding sheet for ceramic tiles and granite,etc.
- Silicon carbide abrasive brushes.
- Other bonded abrasive tools.
Other available Grit Sizes:
Macro Grit Size | Average particle size(mm) | Basic particle size(mm) |
8# | 2.460 | 2.000-2.360 |
10# | 2.085 | 1.700-2.000 |
12# | 1.765 | 1.400-1.700 |
14# | 1.470 | 1.180-1.400 |
16# | 1.230 | 1.100-1.180 |
20# | 1.040 | 0.850-1.000 |
22# | 0.885 | 0.710-0.850 |
24# | 0.745 | 0.600-0.710 |
30# | 0.625 | 0.500-0.600 |
36# | 0.525 | 0.425-0.500 |
40# | 0.438 | 0.355-0.425 |
46# | 0.370 | 0.300-0.355 |
54# | 0.310 | 0.250-0.300 |
60# | 0.260 | 0.212-0.250 |
70# | 0.218 | 0.180-0.212 |
80# | 0.185 | 0.150-0.180 |
90# | 0.154 | 0.125-0.150 |
100# | 0.129 | 0.106-0.125 |
120# | 0.109 | 0.090-0.106 |
150# | 0.082 | 0.063-0.075 |
180# | 0.069 | 0.053-0.075 |
220# | 0.058 | 0.045-0.063 |
Grit designation | Mean grain size ds50-value in μm |
F 230 | 53.0 ± 3 |
F 240 | 44.5 ± 2 |
F 280 | 36.5 ± 1.5 |
F 320 | 29.2 ± 1.5 |
F 360 | 22.8 ± 1.5 |
F 400 | 17.3 ± 1 |
F 500 | 12.8 ± 1 |
F 600 | 9.3 ± 1 |
F 800 | 6.5 ± 1 |
F 1000 | 4.5 ± 0.8 |
F 1200 | 3.0 ± 0.5 |
F 1500 | 2.0 ± 0.4 |
F 2000 | 1.2 ± 0.3 |
F 3000 | 0.8±0.2 |
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