Black Silicon Carbide Grit (SiC) - ZhenAn International
In high-intensity industrial processes like stone polishing, sandblasting, and refractory manufacturing, using low-quality abrasives leads to uneven finishes and frequent material replacement. These inefficiencies drive up production costs and reduce the lifespan of your equipment.
ZhenAn's Black Silicon Carbide Grit provides a superior, high-hardness solution. Produced from high-quality quartz sand and petroleum coke in electric resistance furnaces, our black SiC grit is characterized by its exceptional sharp edges and high thermal conductivity, making it the most cost-effective choice for tough-to-grind materials.
Composition and Specifications of Black SiC Grit
ZhenAn ensures that our Black SiC maintains high purity levels to guarantee aggressive cutting power and durability.
| Chemical Element | Specification (High Grade) | Specification (Standard Grade) |
| SiC Content | ≥ 98.5% | ≥ 95.0% |
| Free Carbon (F.C.) | ≤ 0.20% | ≤ 0.35% |
| Fe2O3 | ≤ 0.15% | ≤ 0.30% |
| Magnetic Content | ≤ 0.005% | ≤ 0.008% |
| Specific Gravity | 3.15 – 3.25 g/cm³ | 3.10 – 3.20 g/cm³ |
Key Industrial Applications
1. Abrasives and Polishing
Black SiC grit is the preferred media for grinding non-ferrous metals (copper, brass, aluminum) and non-metallic materials like glass, stone, rubber, and leather.
2. Sandblasting and Surface Prep
Its sharp, brittle nature allows the grit to fracture during impact, constantly creating new sharp edges. This makes it ideal for cleaning hard surfaces or preparing parts for coating.
3. Refractory Materials
Due to its high melting point and thermal stability, it is used in the production of kiln furniture, crucibles, and high-temperature furnace linings.
4. Anti-Slip Surfaces
Widely used in the construction of wear-resistant floors, stair treads, and non-slip coatings for industrial environments.
Physical Properties & Hardness
Black Silicon Carbide is renowned for being one of the hardest synthetic materials available:
Hardness: 9.2 - 9.5 Mohs (Vickers 2800-3300 kg/mm²).
Thermal Conductivity: High (Excellent for heat-sensitive grinding).
Chemical Stability: Excellent resistance to acids and alkalis at high temperatures.
Melting Point: Sublimes at approximately 2700°C.
Black SiC Grit vs. Green SiC Grit
| Feature | Black SiC Grit | Green SiC Grit |
| Purity (SiC) | 95% – 98.5% | 99% + |
| Hardness | Very High | Extremely High |
| Toughness | Higher than Green SiC | Lower (More Brittle) |
| Primary Use | Stone, Cast Iron, Non-ferrous | Carbide Tools, Optics, Ceramics |
| Cost | More Economical | Premium Price |
Standard Grit Sizes (F-Series & P-Series)
We provide precision grading according to FEPA, JIS, and ANSI standards:
Coarse Grit: F12, F16, F24, F30, F36, F46 (Heavy blasting/grinding).
Medium Grit: F54, F60, F80, F100, F120 (Polishing and surface finishing).
Fine Grit: F150, F180, F220 (Precision lapping and coated abrasives).
Custom Sizing: We can produce specific grain size distributions for specialized industrial needs.
Operational Advantages for Abrasive Blasting
Aggressive Cutting: Faster material removal compared to aluminum oxide or glass beads.
Recyclability: Can be reused multiple times due to its high physical strength.
Low Dust: High purity and professional washing processes ensure a cleaner working environment.
No Contamination: Iron-free composition prevents rust contamination on treated workpieces.
Why Partner with ZhenAn International?
ZhenAn International is a trusted global supplier specializing in high-performance abrasives and metallurgical products.
Decades of Expertise: Over 20 years in the export of SiC materials.
Strict Quality Control: Every shipment is tested for grit distribution and chemical purity.
Global Logistics: Efficient delivery to major ports in the USA, Europe, Saudi Arabia, and beyond.
Custom Solutions: Private labeling and customized packaging for distributors.
Packaging, Logistics & FAQ
Q: What is the standard packaging?
A: We offer 25kg PVC bags, 1-ton jumbo bags with pallets, or custom paper bags for retail distribution.
Q: Can you provide a sample for testing?
A: Yes, we provide free 1-2kg samples for laboratory testing and machine trials.
Q: Do you offer bulk discounts?
A: Yes, as a direct supplier, we provide tiered pricing based on annual volume or container-load orders.
Contact Our Sales Team
Get a competitive quote for high-quality Black Silicon Carbide Grit today. Our experts are ready to provide technical support for your specific application.
Company: ZhenAn International Co., Ltd.
Email: market@zanewmetal.com
WhatsApp: +8615518824805
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