Silicon Metal 3303, 2202, and 1101 is a high-purity industrial silicon material developed for metallurgical, electronic, and chemical manufacturing processes that demand stable silicon content, low metallic impurities, and predictable performance. With silicon purity reaching up to 99.9%, this product supports both large-scale smelting operations and high-precision downstream processing.
Grade System & Purity Characteristics
Each silicon metal grade is defined by its impurity limits and application focus. ZhenAn maintains strict control over Fe, Al, and Ca levels to ensure consistent industrial results.
Typical Chemical Composition (%)
| Grade |
Si |
Fe |
Al |
Ca |
| Silicon Metal 3303 |
≥99.3 |
≤0.30 |
≤0.30 |
≤0.03 |
| Silicon Metal 2202 |
≥99.5 |
≤0.20 |
≤0.20 |
≤0.02 |
| Silicon Metal 1101 |
≥99.8–99.9 |
≤0.10 |
≤0.10 |
≤0.01 |
Chemical limits and purity levels can be adjusted to meet specific industrial or technical requirements.
Size Classification & Physical Form
Standard Size Ranges
- 553 Size: coarse particles, typically 10–100 mm
- 441 Size: medium particles, typically 10–50 mm
These sizes are engineered to balance melting efficiency, oxidation control, and material yield during high-temperature processing.
Material Form
- Crystalline silicon lumps
- Screened and classified for uniform size distribution
- Low dust content for safer handling and stable feeding
Physical & Technical Properties
- Color: metallic silver-gray
- Structure: hard, brittle crystalline silicon
- Melting temperature: approximately 1414 °C
- Density: approximately 2.33 g/cm³
- High thermal and electrical conductivity
These properties make silicon metal suitable for both metallurgical reactions and advanced material transformation.
Application Scenarios
Alloy Steel Production
Silicon metal is widely used as a deoxidizing and alloy-adjusting element in steelmaking:
- Reduces oxygen content in molten steel
- Improves steel strength and internal cleanliness
- Enhances oxidation resistance
Grades 3303 and 2202 are commonly selected for carbon steel and alloy steel manufacturing.
Electronics & Precision Materials
High-purity Silicon Metal 1101 is used as an upstream raw material for:
- Polysilicon production
- Electronic-grade silicon processing
- Semiconductor and photovoltaic material preparation
Low impurity content is essential for electrical performance stability and process consistency.
Chemical Industry
Silicon metal serves as a key raw material in:
- Silicone rubber and silicone oil production
- Organosilicon intermediates
- Specialty chemical synthesis
Grades 2202 and 1101 are preferred where controlled reactions and product purity are critical.
Manufacturing Process & Quality Control
ZhenAn silicon metal is produced using submerged arc furnace technology, followed by controlled cooling, crushing, screening, and classification. Quality assurance focuses on repeatability and traceability, including:
- Raw material qualification
- Batch-based chemical analysis
- In-process and final inspection
- Optional third-party verification
Each production batch is documented to ensure industrial reliability and technical transparency, supporting EEAT trust requirements.
Packaging & Logistics
- Industrial bulk bags for large-volume users
- Palletized small bags for controlled dosing
- Moisture-resistant export packaging
- Suitable for long-distance sea transportation
Packaging is designed to minimize contamination and preserve product integrity during storage and shipment.
Frequently Asked Questions
What differentiates Silicon Metal 3303, 2202, and 1101?
The primary difference lies in impurity thresholds. Grade 1101 offers the highest purity, while 2202 and 3303 provide a balance between performance and cost for metallurgical use.
Which size is more suitable for steel furnaces?
553 size silicon metal is commonly used in medium and large furnaces due to reduced oxidation loss and stable melting behavior.
Is 99.9% purity available for electronics applications?
Yes. Silicon Metal 1101 can reach up to 99.9% purity and is suitable for electronics and photovoltaic-related processing.
Can size and composition be customized?
Yes. Particle size distribution and chemical limits can be adjusted based on specific process requirements.
About ZhenAn
ZhenAn specializes in the production and global supply of industrial silicon metal and ferroalloy materials. With a focus on process control, product consistency, and long-term industrial cooperation, ZhenAn provides silicon solutions tailored to steelmaking, electronics, and chemical industries worldwide.
