What is the price of silicon metal today?
| China's export price of industrial silicon on April 22, 2026 | |||
| Brand | Tax-inclusive price | rise and fall | Notes (USD/ton) |
| 421 | 1450-1500 | -- | Huangpu Port, FOB |
| 2202 | 2000-2100 | -- | Huangpu Port, FOB |
| 3303 | 1470-1490 | -- | Huangpu Port, FOB |
| 441 | 1360-1410 | -- | Huangpu Port, FOB |
| 553 | 1300-1330 | -- | Huangpu Port, FOB |
Silicon Metal Particle Sizes: Flexible Options for Every Industrial Application
Silicon metal is available in a wide range of particle sizes-from coarse lumps (10–100 mm) to fine powders (<325 mesh)-to meet different industrial requirements such as aluminum alloying, chemical processing, and powder metallurgy. Selecting the right size directly impacts reaction efficiency, melting behavior, and production cost control.
Typical Particle Size Specifications of Silicon Metal
| Form | Size Range | Description | Main Applications |
|---|---|---|---|
| Lump | 10–50 mm | Standard industrial size | Aluminum smelting, metallurgy |
| Lump | 50–100 mm | Large-size bulk material | Furnace feeding, bulk melting |
| Granules | 3–10 mm | Medium-sized particles | Steelmaking, alloy additives |
| Small Granules | 1–3 mm | Controlled reaction size | Precision alloying |
| Powder | 0–1 mm | Fine crushed silicon | Chemical processing |
| Fine Powder | 100–325 mesh | High surface area | Silicone, polysilicon |
| Ultra-fine Powder | <325 mesh | Very high reactivity | Advanced materials |
Why Particle Size Matters in Silicon Metal Applications
Particle size is not just a physical parameter-it directly influences melting rate, reaction kinetics, and process efficiency.
Larger lumps (10–100 mm) are preferred in aluminum smelting because they provide stable melting behavior and reduced oxidation loss. They ensure controlled feeding into furnaces and minimize dust generation.
Smaller granules (1–10 mm) are used where faster reaction speed and better distribution are required. These sizes allow more uniform mixing in alloy production.
Fine powders are critical in chemical industries. Their high surface area significantly improves reaction efficiency in silicone and polysilicon production, but they require stricter handling due to oxidation sensitivity.
Industrial Selection Strategy by Application
In aluminum alloy production, 10–50 mm lump silicon is the most widely used because it balances melting efficiency and cost control.
In steelmaking or precision alloying, smaller particle sizes (1–10 mm) are selected to ensure fast dissolution and uniform composition.
For chemical-grade silicon applications, fine powder (<325 mesh) is essential to achieve high reaction rates and consistent product quality.
Silicon Metal Grade Comparison
Silicon Metal 2202 vs 3303 (Particle Size Application)
Silicon Metal 2202, with lower impurity levels, is often supplied in controlled lump sizes (10–50 mm) for high-quality aluminum alloys.
Silicon Metal 3303 is more cost-effective and available in a wider range of sizes, making it suitable for general industrial applications.
Lump Silicon vs Powder Silicon
Lump silicon provides stable melting and lower oxidation loss, making it ideal for metallurgical use.
Powder silicon offers higher reactivity and faster processing, especially in chemical manufacturing.
Standard Size vs Customized Size Silicon Metal
Standard sizes (10–50 mm, 50–100 mm) are widely used for bulk production.
Customized sizes (1–3 mm, powders) are tailored for specific process requirements, improving efficiency and product consistency.
Conclusion: Choosing the Right Particle Size
The optimal silicon metal size depends on application:
10–50 mm: Best for aluminum smelting
1–10 mm: Ideal for alloying and steelmaking
Powder (<325 mesh): Required for chemical industries
👉 Selecting the correct particle size ensures higher efficiency, lower cost, and better product quality.
FAQ for Buyers
What is the most common silicon metal size?
10–50 mm is the standard size for most metallurgical applications.
Can silicon metal size be customized?
Yes, suppliers can provide customized sizes based on your process needs.
Why use smaller particle sizes?
They increase reaction speed and improve uniformity.
Is powder silicon better than lump silicon?
Not always-powder is better for chemical reactions, while lumps are better for melting.
Does size affect price?
Yes, finer sizes usually cost more due to additional processing.
What size is used in aluminum production?
Typically 10–50 mm lump silicon.
Reliable Silicon Metal Supply
We provide high-quality silicon metal in multiple particle sizes:
10–50 mm / 50–100 mm lumps
1–10 mm granules
fine and ultra-fine powders
consistent quality and global supply
📩 Email: market@zanewmetal.com
📱 WhatsApp: +86 15518824805
Contact us today for a fast quote and customized size solution.
Why Choose ZhenAn Silicon Metal?
For international buyers, sourcing silicon metal is less about basic specifications and more about consistency, downstream performance, and supply reliability. ZhenAn is positioned to support these real procurement priorities.
1. Consistent Chemical Stability
ZhenAn maintains controlled production to ensure stable silicon content and tightly managed impurities (Fe, Al, Ca), supporting predictable results in aluminum alloys, chemicals, and other applications.
2. Reliable Performance in Production
Uniform composition helps improve melting behavior and reduces variability in alloying processes, which is critical for large-scale industrial operations.
3. Multiple Grades & Flexible Supply
Available in standard grades (e.g., 553, 441, 3303) with flexible sizing and packaging options to match different industrial and logistics requirements.
4. Export-Ready Compliance Support
COA, SDS, and complete export documentation are provided to meet international standards and ensure smooth customs clearance.
5. Stable Supply Chain & Cost Control
With consistent production capacity and direct factory supply, ZhenAn helps buyers secure long-term availability while optimizing procurement costs.
ZhenAn silicon metal is supplied with a focus on process stability, quality consistency, and dependable delivery, making it a practical choice for industrial buyers seeking long-term supply partners.
