Black SiC F14 Abrasive Grit Sandblasting Media
Black SiC F14 Abrasive grit Sandblasting media is a sharp‑edged, high‑hardness abrasive grain produced by smelting quartz sand and petroleum coke at ultra‑high temperature. The F14 grit size delivers a coarse, aggressive cutting effect for heavy‑duty blasting work. It features high mechanical strength, excellent wear resistance and good chemical stability, and does not react with most metal substrates. This abrasive is widely used for heavy rust removal, thick oxide scale cleaning and rough surface texturing on steel, cast iron and non‑ferrous workpieces. It suits blast rooms and pressure‑type blasting equipment for industrial pretreatment before coating and welding.
Typical physical properties of Black SiC F14 Abrasive Grit Sandblasting Media:
| 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 | 71-130 W/MK |
Typical chemical composition of Black SiC F14 Abrasive Grit Sandblasting Media:
| Chemical Item | Guarantee Value(%) | Typical Value(%) |
| SiC | ≥98.1% | 98.42 |
| Free C | ≤0.20 | 0.12 |
| Fe2O3 | ≤0.30 | 0.16 |
Particle size distribution of Black SiC F14 Abrasive Grit Sandblasting Media:
| Grit | Mesh# | Mesh size(um) | Weight Standard(%) | Typical Value(%) |
| Coarsest Grit | +8 | 2360 | 0 | 0 |
| Coarse Grit | +12 | 1700 | Max. 20 | 6.8 |
| Basic Grit | +14 | 1400 | Min. 45 | 50.2 |
| Mixed Grit | +14 +16 | 1400 1180 | Min. 70 | 88.7 |
| Fine Grit | -18 | 1000 | Max. 3 | 0.3 |
Product Feature of Black SiC F14 Abrasive Grit Sandblasting Media:
- Good oxidation resistance and chemical stability at high temperatures.
- High hardness with Mohs 9.2-9.3. Even at 2000℃, it still gets high strength.
- Excellent toughness.
- Low thermal conductivity. So it can be resistant to thermal shock.
- High purity min SiC content is 98.5%.
- High bulk density.
- Black silicon carbide grit is washed with water before the milling process, so there are few impurities.
Application of Black SiC F14 Abrasive Grit Sandblasting Media:
- Sandblasting, etching, and carving of materials such as stone and marble.
- Surface cleaning and passivation of materials such as stainless steel semiconductor components and alloy steel.
- Ceramic products and electronic ceramics sandblasting and grinding.
- Polishing and grinding marble, granite, jade, jadeite, gemstones, etc.
- Glass artworks, glass products polishing and grinding, etc.
- Production of grinding tools such as grinding stones, steel paper sand discs, silicon carbide abrasive brushes, black diamond drawing wheels, sponge grinding blocks, and oilstones.
- Reaction-sintered silicon carbide ceramics: silicon carbide ceramic filters, silicon carbide ceramic membrane tubes, silicon carbide wear-resistant products, silicon carbide ceramic water pumps, bent pipes, silicon carbide wear-resistant plates, etc.
- Composite materials such as foam glass, modified resin, lubricating oil, anti-corrosion mastic, and other materials are added.
- Wear-resistant products such as brake pads, and wear-resistant sandpaper with added materials.
- Refractory materials such as silicon carbide refractory aggregates, and metallurgical carbonization materials.
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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