Industrial-Grade Silicon Carbide (SiC) | 97.5% Purity Abrasives & Refractories

Product Categories

Black Silicon Carbide (SiC) is an ultra-hard synthetic abrasive (Mohs 9.2) with 97.5% purity. Its exceptional thermal conductivity, sharpness, and electrical properties make it ideal for precision grinding, advanced refractories, semiconductor polishing, and high-temperature ceramics.

High-purity 97.5% Silicon Carbide (SiC) abrasives for grinding, refractories & semiconductors. Mohs 9.2 hardness, 1900°C thermal stability. FEPA/JIS certified grains. Request specs!

What is Silicon Carbide (SiC)?

Black Silicon Carbide (SiC) is synthesized from quartz sand and petroleum coke at extreme temperatures. As a Grade A abrasive, it delivers 97.5% SiC purity with low impurities (Fe₂O₃ ≤0.30%, magnetic content ≤0.02%), offering superior hardness and conductivity.

Technical Specifications

Property	Value
SiC Content	≥97.5%
Mohs Hardness	9.2
Melting Point	2250°C
Max Service Temp	1900°C
True Density	3.2–3.45 g/cm³
Electrical Conductivity	Yes (functional abrasive)

Available Forms

Grit Sizes: 16# to 220# (e.g., 24#, 46#, 80#, 120#, 220#)
Custom Sizes: Tailored cuts per FEPA, JIS, or client specs

Key Applications

Precision Grinding:
- Grinding wheels, abrasive stones, lapping compounds.
- Polishing photovoltaic wafers (mono/polycrystalline silicon).
Advanced Refractories:
- High-temperature kiln parts, metallurgical deoxidizers.
Functional Ceramics:
- Kiln furniture, reaction-sintered ceramics, crucibles.
Semiconductor Industry:
- Wafer surface treatment, chip fabrication.
Metallurgy & Foundry:
- Alloy processing, mineral separation media.
Anti-Wear Solutions:
- Industrial coatings, blast media for rust removal.

Why Choose Our SiC?

Ultra-Hard Performance: Harder than fused alumina (Mohs 9.2).
Thermal Shock Resistance: Stable in rapid heating/cooling cycles.
Electrical Properties: Unique conductivity for specialized applications.
Purity Guaranteed: Consistent 97.5% SiC content.