Black Silicon Carbide Supplier | Competitive Price | For Abrasive & Casting
What is Black Silicon Carbide?
Black Silicon Carbide (B-SiC) is a high-purity, metallurgical-grade material with a silicon carbide content of 88–90%. Its dark color indicates dense crystalline structure and minimal impurities, which ensures predictable performance in both abrasive and metallurgical applications.
Unlike green silicon carbide, which is typically used for non-ferrous metals, black SiC is preferred for steel, iron, and high-temperature processes because of its high thermal stability and controlled chemical behavior. Its sharp and hard crystalline edges allow it to cut and grind efficiently, while its chemical properties support metallurgical reactions such as deoxidation and carbon adjustment in molten metal.
Applications in the Abrasive Industry
In abrasives, black silicon carbide is valued for its hardness, sharpness, and wear resistance. It is widely used in grinding wheels, sandpapers, cutting tools, and polishing compounds. The sharp edges of B-SiC particles allow for fast material removal while maintaining surface quality, making it ideal for precision grinding of metals, ceramics, and stones.
Its high thermal conductivity helps dissipate heat during high-speed grinding, reducing the risk of material damage and extending tool life. Foundries and tool manufacturers choose black SiC because it consistently produces smooth surfaces, reduces rework, and improves operational efficiency, especially in large-scale industrial processes.
Applications in the Casting Industry
In casting and foundry operations, black silicon carbide serves as both a deoxidizer and carbon source. Its uniform particle size and high silicon content ensure rapid and predictable reactions in molten metal, helping to remove dissolved oxygen, stabilize chemical composition, and improve slag fluidity.
Using B-SiC in casting reduces the occurrence of porosity, inclusions, and surface defects in final castings. It also allows foundries to reduce the use of multiple additives, simplifying the casting process while lowering material costs. Black SiC's thermal stability ensures that it maintains performance even under extreme temperatures, supporting high-volume production without compromising quality.
Foundries producing steel or iron castings benefit from black SiC because it improves yield, reduces scrap rates, and ensures consistent product quality batch after batch. Its dual functionality as both a carbon source and deoxidizer streamlines metallurgical operations, making it a cost-effective choice for modern casting facilities.
Advantages of Black Silicon Carbide
High Hardness and Sharpness: Efficient cutting, grinding, and polishing for abrasive applications.
Thermal Stability: Maintains performance at high temperatures in grinding or metallurgical processes.
Dual Functionality in Metallurgy: Acts as both a deoxidizer and carbon source in steel and iron casting.
Consistent Quality: Stable chemical composition and particle size ensure predictable reactions and results.
Cost Efficiency: Reduces the need for multiple materials and minimizes scrap or rework.
These advantages make black silicon carbide an indispensable material for industries requiring both mechanical precision and metallurgical reliability.
Technical Specifications
| Item | Value |
|---|---|
| SiC | 88–90% |
| Si | ≥ 60% |
| C | ≥ 28% |
| Fe2O3 | ≤ 1.5% |
| Particle Size | Powder, 0-1mm, 1-3mm, 1-5mm, Lumps 10–50mm |
| Packing | 1MT jumbo bag / 25kg bag |
Custom particle sizes are available to meet the requirements of different abrasive processes or casting furnaces.
Packaging and Delivery
Black SiC is supplied in standard export jumbo bags or 25kg bags, suitable for bulk industrial use. Orders are typically delivered within 7–15 days depending on quantity. Custom packaging or particle size distribution can be arranged to fit specific industrial needs.
Why Choose Us?
As a direct factory supplier, we provide high-quality black silicon carbide with stable chemical composition, controlled particle size, and consistent performance. Our technical team supports customers in optimizing material usage for both abrasive and casting applications, ensuring higher efficiency, lower costs, and improved product quality.
FAQ
1. Can black SiC be used for both abrasives and casting?
Yes, its unique hardness and chemical stability make it suitable for grinding, polishing, deoxidation, and carbon adjustment.
2. What particle sizes are available?
Powder (<1mm), 0-1mm, 1-3mm, 1-5mm lumps, and 10–50mm larger lumps.
3. How does black SiC improve casting quality?
It reduces porosity, inclusions, and defects while stabilizing chemical composition and slag fluidity.
4. Can it replace multiple additives in foundry operations?
Yes, it acts as both a deoxidizer and carbon source, reducing the need for separate materials.
5. What abrasive applications are best for black SiC?
Grinding wheels, sandpapers, cutting tools, and polishing compounds for metals, ceramics, and stones.
6. What packing options are offered?
1MT jumbo bags or 25kg bags; custom packaging available.
Get Competitive Bulk Price for Black Silicon Carbide Today
Enhance abrasive efficiency and improve casting quality with our high-purity Black SiC. Contact us for quotation, technical support, and sample delivery.
Email: market@zanewmetal.com
WhatsApp: +86 15518824805
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