High Purity Silicon Metal
Products Description
Silicon Metal, also known as metallic silicon or crystalline silicon, is a refined form of elemental silicon. It is produced by reducing high-purity quartz (SiO₂) with carbon in electric arc furnaces at high temperatures. The result is a silver-gray metallic product primarily composed of silicon, with controlled levels of iron, aluminum, calcium, and other trace elements.
Silicon metal plays an essential role in various industrial sectors, serving as a key raw material for aluminum alloys, silicones, semiconductors, and photovoltaic (solar) applications.
Specification
We supply silicon metal in multiple standard grades, mainly categorized by their chemical composition (notably the levels of Fe, Al, and Ca impurities). Common grades include:
| Grade | Si (%) | Fe (%) | Al (%) | Ca (%) |
|---|---|---|---|---|
| 553 | ≥98.5 | ≤0.5 | ≤0.5 | ≤0.3 |
| 441 | ≥99.0 | ≤0.4 | ≤0.4 | ≤0.1 |
| 3303 | ≥99.3 | ≤0.3 | ≤0.3 | ≤0.03 |
| 2202 | ≥99.5 | ≤0.2 | ≤0.2 | ≤0.02 |
📦 Packaging Options:
- 1MT Jumbo Bags with liner
- 25kg bags on pallets
- Customized packaging on request
🧱 Sizes Available:
- Lump: 10–100 mm
- Granule: 1–10 mm
- Powder: -200 mesh
Advantages of Silicon Metal
Silicon metal is indispensable across various industries:
🔧 1. Aluminum Alloys:
Improves strength, corrosion resistance, and casting performance in automotive, aerospace, and structural aluminum.
🧪 2. Silicone Industry:
Used to produce silicones and silanes, critical for medical, construction, and personal care products.
🔋 3. Chemical Industry:
Acts as a raw material in the production of silicon-based compounds, adhesives, sealants, and lubricants.
☀️ 4. Photovoltaics (Solar):
High-purity silicon is a fundamental material for solar panels and solar cells.
💻 5. Electronics & Semiconductors:
Ultra-high purity silicon (electronic-grade) is essential for semiconductor wafers used in chips and microelectronics.
Why Choose Us?
🏭 Direct Manufacturer: We are the source – ensuring competitive pricing and consistent supply.
🧪 Strict Quality Control: Advanced testing equipment, third-party inspection (SGS, BV), and full traceability.
🚢 Flexible Logistics: CIF, FOB, or custom delivery solutions tailored to your location and timeline.
💼 Experienced Exporter: Over 10 years of global trade experience, with customers across Asia, Europe, and the Americas.
📦 Customized Service: Packaging, sizing, and specifications can be tailored to your specific needs.
💬 Responsive Communication: Quick response time, multilingual support, and dedicated account managers.
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