Description
Black Silicon Carbide Powder #240 is a high-purity silicon carbide micropowder manufactured from premium petroleum coke and silica sand through electric resistance furnace smelting, followed by crushing, milling, and precision particle classification.
With excellent hardness, sharp angular particles, and uniform particle size distribution, Black Silicon Carbide Powder #240 delivers efficient cutting performance while maintaining excellent dimensional consistency. It is suitable for precision grinding, lapping, polishing, and surface finishing applications where stable abrasive performance is required.
Compared with coarser silicon carbide grits, Black Silicon Carbide Powder #240 provides finer surface finishes and improved processing control, making it widely used in ceramic processing, refractory materials, optical glass, stone processing, bonded abrasives, and other industrial applications.
With excellent wear resistance, thermal stability, and consistent quality, Black Silicon Carbide Powder #240 is an ideal abrasive material for manufacturers requiring reliable micropowder solutions for precision finishing and industrial processing.
Key Features
High Hardness
Mohs hardness up to 9.2, providing excellent cutting ability
and abrasive efficiency.
Excellent Grinding Performance
Sharp silicon carbide crystals provide fast material removal
and precision processing capability.
Stable Physical Properties
Maintains reliable performance under high temperature,
wear and demanding industrial conditions.
Wide Industrial Applications
Suitable for precision lapping, polishing, ceramics and
advanced material processing.
Available Sizes
- FEPA F Micro Grit: F240, F280, F320, F360, F400, F600, F800, F1000, F1200, F1500, F2000, F2500
- FEPA P Grit: P240, P360, P400, P800, P1000, P1200, P1500, P2000, P2500
- JIS Grit: #240, #320, #400, #600, #700, #800, #1000, #1200, #1500, #2000, #2500, #3000, #4000, #6000
- Micron Size: Custom particle sizes are available according to customer requirements for precision grinding, polishing, ceramic processing and advanced industrial applications.
Applications
Precision Lapping
Used for precision lapping and polishing of metals,
ceramics and advanced materials.
Surface Finishing
Suitable for fine grinding, polishing and surface treatment
applications.
Ceramics & Refractory Materials
Used for processing ceramics, cemented carbide and
high temperature materials.
Precision Abrasive Applications
Applied in fine abrasive tools and industrial precision
processing.
Technical Data
Physical Properties
| Item | Value |
|---|---|
| Appearance | Black Powder |
| Mohs Hardness | 9.2 |
| Bulk Density | 1.45–1.56 g/cm³ |
| True Density | 3.12 g/cm³ |
| Melting Point | 2250°C |
| Crystal Structure | Hexagonal |
| CAS No. | 409-21-2 |
| HS Code | 2849200000 |
Chemical Composition (%)
| Model | Particle Size | SiC | F.C. | Fe₂O₃ |
|---|---|---|---|---|
| C | F230–F280 (#240–#360) | ≥98.30 | ≤0.25 | ≤0.25 |
| F320–F500 (#400–#800) | ≥98.10 | ≤0.25 | ≤0.30 | |
| F600–F800 (#1000–#1500) | ≥97.80 | ≤0.25 | ≤0.30 | |
| F1000–F1200 (#2000–#2500) | ≥97.50 | ≤0.25 | ≤0.30 | |
| #3000–#6000 | ≥96.00 | ≤0.25 | ≤0.30 |
Particle Distribution (μm)
| Particle Size | D0 | D3 | D50 | D94 |
|---|---|---|---|---|
| #240 | ≤127 | ≤103 | 58.6±3.0 | ≥40.0 |
| #280 | ≤112 | ≤87.0 | 49.4±3.0 | ≥33.0 |
| #320 | ≤98.0 | ≤74.0 | 41.1±2.5 | ≥27.0 |
| #360 | ≤86.0 | ≤66.0 | 36.1±2.0 | ≥23.0 |
| #400 | ≤75.0 | ≤58.0 | 30.9±2.0 | ≥20.0 |
| #500 | ≤63.0 | ≤50.0 | 26.4±2.0 | ≥16.0 |
| #600 | ≤53.0 | ≤43.0 | 21.1±1.5 | ≥13.0 |
| #700 | ≤45.0 | ≤37.0 | 17.9±1.3 | ≥11.0 |
| #800 | ≤38.0 | ≤31.0 | 14.7±1.0 | ≥9.0 |
| #1000 | ≤32.0 | ≤27.0 | 11.9±1.0 | ≥7.0 |
| #1200 | ≤27.0 | ≤23.0 | 9.9±0.8 | ≥5.5 |
| #1500 | ≤23.0 | ≤20.0 | 8.4±0.6 | ≥4.5 |
| #2000 | ≤19.0 | ≤17.0 | 6.9±0.6 | ≥4.0 |
| #2500 | ≤16.0 | ≤14.0 | 5.6±0.5 | ≥3.0 |
| #3000 | ≤13.0 | ≤11.0 | 4.0±0.5 | ≥2.0 |
| #4000 | ≤11.0 | ≤8.0 | 3.0±0.4 | ≥1.3 |
| #6000 | ≤8.0 | ≤5.0 | 2.0±0.4 | ≥0.8 |
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