Silicon Metal 2202 / 553 / 441 | Premium Purity Si for Steel, Chemical & Renewable Energy Applications
ZhenAn's Premium Silicon Metal 2202, combined with 1101/3303 sizes in 441 and 553 particle distributions, is engineered to reduce process risk, improve yield, and stabilize industrial performance.
Industrial Challenges Addressed
Silicon metal serves as a process-critical variable in industrial applications. Common challenges include:
- Inconsistent deoxidation and alloying results despite standard recipes
- Increased oxidation loss from improper particle size selection
- Trace impurities (Fe, Al, Ca) causing downstream defects
- Batch variability complicating furnace operation and process control
Product Positioning
ZhenAn provides industrial-grade silicon metal in 2202 grade, offering high purity (~99.8%) for critical applications with flakes and granules tailored for different melting and dosing behaviors.
Primary Applications
- Alloy steel and specialty steel production
- Chemical intermediates and organosilicon compounds
- Renewable energy materials including polysilicon and photovoltaic feedstock
Grades & Purity Control
The purity and impurity profile of silicon metal directly impact industrial outcomes.
| Grade |
Si |
Fe |
Al |
Ca |
| 2202 |
≥99.5% |
≤0.20% |
≤0.20% |
≤0.02% |
| 1101 |
≥99.8% |
≤0.10% |
≤0.10% |
≤0.01% |
| 3303 |
≥99.3% |
≤0.30% |
≤0.30% |
≤0.03% |
Industrial Rationale
- 2202: Optimized for applications requiring cleaner alloying and controlled impurity levels
- 1101-level purity: Used in electronics, battery materials, and renewable energy to minimize contamination risk
- 3303 reference: Cost-efficient for bulk steelmaking where minor impurities are acceptable
Particle Size & Material Form
Particle size and form dictate oxidation behavior, melting consistency, and process efficiency.
Flakes vs Granules
- Flakes: Larger surface area for rapid dissolution and alloying corrections
- Granules: Improved flowability and controlled feeding for continuous or automated systems
Size Distribution
- 553 (Coarse): 10–100 mm; slower oxidation, higher recovery, suitable for primary steelmaking
- 441 (Medium): 10–50 mm; faster dissolution, uniform alloying, preferred in casting and chemical dosing
Strict screening ensures predictable performance and reduces batch-to-batch variability.
Physical & Industrial Properties
- Metallic silver-gray crystalline appearance
- Hard, brittle structure for controlled melting
- Melting point: ~1414 °C
- Density: ~2.33 g/cm³
- Stable thermal and electrical conductivity
These properties enable predictable reactions in furnaces, stable alloy composition, and high-purity chemical feedstock preparation.
Application-Focused Performance
Steel & Alloy Production
Silicon metal acts as both a deoxidizer and chemical composition regulator, affecting oxygen removal efficiency, slag-metal balance, and final steel strength and cleanliness.
Selecting 2202 with appropriate size (441 or 553) improves silicon recovery per ton of steel, batch-to-batch consistency, and alloying efficiency.
Chemical Industry
Silicon metal supports organosilicon intermediates, silicone oils and rubbers, and specialty chemical production. 2202-grade silicon reduces metallic impurities, stabilizing reactions and protecting catalyst systems.
Renewable Energy & Advanced Materials
High-purity silicon (1101 reference) is critical for polysilicon production, photovoltaic material feedstock, and battery material synthesis. Low impurity content minimizes downstream contamination and purification cost.
Manufacturing & Quality Assurance
ZhenAn silicon metal is produced via submerged arc furnace smelting, followed by controlled solidification, precision crushing and screening, and batch-level chemical verification.
QA emphasizes traceable raw materials, consistent chemical composition, particle size control, and optional independent testing to ensure reliable, predictable supply.
Packaging & Handling
- Bulk bags for steel and alloy plants
- Palletized packaging for controlled dosing
- Moisture-resistant export packing
- Designed for industrial-scale handling and transportation
Technical FAQ
Which grade is best for high-purity chemical or electronics applications?
1101-level silicon metal is recommended due to minimal Fe, Al, and Ca content.
Does particle size impact oxidation loss?
Yes. Coarser (553) reduces surface oxidation; medium (441) improves uniform dissolution and reaction timing.
Can specifications be customized?
Yes. Chemical composition and particle size distribution can be adjusted for specific process needs.
Is 2202 suitable for both steelmaking and renewable energy applications?
Yes, with the correct particle size and purity selection aligned with the application.
About ZhenAn
ZhenAn specializes in industrial silicon metal and alloy materials, serving steelmakers, alloy producers, and advanced material manufacturers. The company focuses on process compatibility, batch consistency, and technical reliability, helping clients mitigate operational risk rather than just sourcing raw materials.
