Product Overview
Silicon Carbide Grit is a synthetic, extremely hard crystalline material manufactured through the high-temperature reaction of silica sand and petroleum coke in an electric resistance furnace. The resulting product is crushed, screened, and processed into precise grit sizes for a wide range of abrasive and refractory applications.
Known for its sharp, angular morphology and exceptional thermal conductivity, Silicon Carbide Grit is the preferred choice for working with hard, brittle materials such as glass, stone, ceramics, and non-ferrous metals.
Key Features & Benefits
| Feature | Benefit |
|---|---|
| Extreme Hardness (9.5 Mohs) | Cuts faster than aluminum oxide; ideal for hard materials. |
| Sharp, Friable Grains | Continuously fractures to expose new cutting edges, ensuring consistent performance and preventing glazing. |
| High Thermal Conductivity | Dissipates heat quickly during grinding, reducing heat damage to the workpiece (ideal for heat-sensitive materials). |
| Chemical Inertness | Resists corrosion and chemical attack, ensuring durability in wet applications. |
| Uniform Particle Size | Precision screening ensures consistency for surface finishing quality. |
Technical Specifications
Chemical Composition (Typical)
| Component | Percentage |
|---|---|
| Silicon Carbide (SiC) | 98.0% min |
| Free Carbon (C) | 0.2% max |
| Iron Oxide (Fe₂O₃) | 0.1% max |
| Silicon Dioxide (SiO₂) | 0.5% max |
Physical Properties
| Property | Value |
|---|---|
| Color | Black, semi-metallic luster |
| Crystal Structure | Hexagonal (α-SiC) |
| Specific Gravity | 3.2 g/cm³ |
| Bulk Density | 1.2 – 1.6 g/cm³ (varies by grit size) |
| Magnetic Particle Content | < 0.1% |
Available Grit Sizes (FEPA & ANSI Standards)
We offer a full range of Silicon Carbide Grit to meet your specific application requirements:
| Category | Grit Range | Common Applications |
|---|---|---|
| Coarse | F12 – F24 (ANSI 12-24) | Heavy stock removal, stone cutting, floor grinding |
| Medium | F30 – F60 (ANSI 30-60) | General grinding, lapping, sandblasting media |
| Fine | F70 – F220 (ANSI 70-220) | Surface preparation, wire sawing, glass edging |
| Micro Grits | F230 – F1200 | Polishing, honing, precision lapping, ceramics |
Custom blends and packaging available upon request.
Applications
1. Abrasive Blasting (Sandblasting)
Perfect for etching glass, stone carving, and surface preparation due to its sharp edges and fast cutting action. It is reusable multiple times, offering excellent value.
2. Lapping & Honing
Used as a free abrasive in the lapping of hard materials such as carbide tools, ceramic seals, and optical components to achieve ultra-flat surfaces.
3. Cutting & Wire Sawing
Primary abrasive used in slurry for slicing silicon ingots (photovoltaic) and quartz crystals.
4. Grinding Wheels & Abrasive Papers
Bonded into grinding wheels or coated onto paper/cloth for metalworking and woodworking.
5. Refractory Applications
Mixed with binders to create kiln furniture, shelves, and crucibles due to its high-temperature stability.
6. Anti-Skid Flooring
Broadcast into wet epoxy or paint to create durable, non-slip industrial flooring surfaces.
Packaging & Logistics
Packaging Options:
25 kg (55 lbs) multi-layer paper or plastic woven bags
1,000 kg (2,200 lbs) jumbo bulk bags
50 lb steel pails (for micro grits)
Palletizing: Shrink-wrapped on export-grade pallets.
Lead Time: 7-15 days after order confirmation.
Shipping: FOB, CNF, CIF available via sea, air, or express.
Why Choose Our Silicon Carbide Grit?
Consistent Quality: Every batch is tested for particle size distribution, chemical purity, and bulk density.
Competitive Pricing: Direct from the manufacturer, no middlemen.
Customization: We can blend grit sizes or adjust packaging to match your specific handling requirements.
Technical Support: Our engineers can help you select the optimal grit size and shape for your application.
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