Product Overview
Silicon Carbide is a high-performance non-metallic material produced by fusing quartz sand and petroleum coke in a high-temperature resistance furnace. With a Mohs hardness of 9.5 – second only to diamond – it offers excellent thermal stability, corrosion resistance, and semiconductor properties, making it an essential industrial material.
Key Features
High Hardness & Wear Resistance: Ideal for grinding, lapping, and polishing applications.
Thermal Stability: Maintains strength above 1400°C, suitable for high-temperature kiln furniture and refractory components.
Chemical Inertness: Resistant to acids, alkalis, and molten metals.
Semiconductor Properties: High breakdown voltage and thermal conductivity enable next-generation power electronics.
Chemical Composition
| Grade | SiC (%) | F.C. (%) | Fe₂O₃ (%) | Moisture (%) |
|---|---|---|---|---|
| Black SiC (98%) | ≥ 98.0 | ≤ 0.30 | ≤ 0.60 | ≤ 0.20 |
| Black SiC (97%) | ≥ 97.0 | ≤ 0.50 | ≤ 1.00 | ≤ 0.20 |
| Refractory Grade | ≥ 90.0 | ≤ 2.00 | ≤ 2.00 | ≤ 0.50 |
Typical Applications
Abrasive & Lapping: Grinding wheels, sandpaper, lapping compounds, wire saw slurries (PV/semiconductor).
Refractories & Ceramics: Kiln shelves, crucibles, thermocouple protection tubes, ceramic rollers.
Metallurgy & Chemical: Deoxidizers, steel ladle linings, acid-resistant pump parts.
Electronics & Defense: Power semiconductors (SiC MOSFETs, Schottky diodes), LED substrates, ceramic armor.
Packaging & Storage
Standard packaging: 25kg woven bags, 1 MT jumbo bags with inner moisture barrier.
Custom options: Drums, cartons, or export-grade pallets available upon request.
Storage: Keep in a dry, well-ventilated warehouse. Avoid prolonged exposure to high humidity to prevent caking.
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