High-Quality Silicon Metal 553/441
Fine & Coarse Grain Si for Alloy Steel, Renewable Energy & Electronics | 3303/2202/1101
Industrial Challenges: Why Silicon Metal Quality Matters
In steelmaking, alloy production, and high-purity electronic or renewable energy applications, silicon metal is a process-critical material. Common challenges include:
- Fluctuating deoxidation and alloying efficiency
- Oxidation and material loss from improper particle size selection
- Trace impurities (Fe, Al, Ca) impacting steel, electronic, and solar-grade products
- Inconsistent batches complicating furnace control and chemical uniformity
Product Overview & Industrial Applications
ZhenAn supplies industrial-grade silicon metal with comprehensive specifications:
Available Specifications
- Grades: 3303 / 2202 (industrial) and 1101 (high-purity reference)
- Particle Sizes: 553 (coarse) and 441 (medium)
- Forms: Flakes and granules for precise melting and dosing
Industrial Benefits
- Match silicon input with furnace scale and purity specifications
- Reduce oxidation loss and maximize silicon recovery
- Maintain consistent batch-to-batch chemical performance
Primary Applications
- Alloy and carbon steel production
- Renewable energy materials (solar panels, polysilicon)
- Electronics and battery feedstock
- Specialty chemical intermediates
Grades & Purity Control
Selecting the appropriate grade ensures process efficiency and product reliability.
Chemical Composition (%)
| Grade |
Si |
Fe |
Al |
Ca |
| 3303 |
≥99.3 |
≤0.30 |
≤0.30 |
≤0.03 |
| 2202 |
≥99.5 |
≤0.20 |
≤0.20 |
≤0.02 |
| 1101 |
≥99.8 |
≤0.10 |
≤0.10 |
≤0.01 |
Industrial Applications by Grade
- 3303: Cost-effective for bulk steelmaking and standard alloys
- 2202: Controlled impurities for casting and specialty alloys
- 1101: High-purity applications in electronics, batteries, and solar-grade feedstock
Particle Form & Size Considerations
Particle size and physical form dictate melting consistency, oxidation behavior, and alloying efficiency.
Flakes vs Granules
- Flakes: Larger surface area, faster dissolution, ideal for rapid alloying and chemical adjustments
- Granules: Stable flow, reduced dust, precise feeding for automated and continuous processes
Size Classification
- 553 (Coarse): 10-100 mm; slower oxidation, higher silicon recovery, suitable for primary steelmaking
- 441 (Medium): 10-50 mm; uniform dissolution, preferred for casting, electronics, and renewable energy applications
ZhenAn implements strict screening and batch verification to reduce variability and ensure predictable industrial performance.
Material Properties
- Metallic silver-gray crystalline structure
- Hard and brittle for controlled melting
- Melting point: ~1414 °C
- Density: ~2.33 g/cm³
- Stable thermal and electrical conductivity
These properties ensure predictable furnace behavior, stable alloy composition, and reliable feedstock for electronics and solar materials.
Application-Focused Performance
Steel & Alloy Production
Silicon metal functions as a deoxidizer and alloying regulator, affecting oxygen removal efficiency, slag-metal balance, and final steel strength and cleanliness.
- 553-size 3303 / 2202 for primary steelmaking enhances recovery and batch consistency
- 1101-grade ensures low-impurity alloying for specialty steels
Casting & Foundry
- 441 particle size enables uniform dissolution
- Reduces impurity carryover and casting defects
- Optimizes graphite structure, fluidity, and mechanical properties
Renewable Energy & Electronics
- High-purity 1101-grade silicon for polysilicon, solar panels, and battery materials
- Low impurity content minimizes downstream purification costs
- Improves yield, performance, and quality of final products
Chemical Industry
- Supports organosilicon intermediates, silicone oils, and specialty chemical synthesis
- Maintains catalyst stability and reaction consistency
Manufacturing & Quality Assurance
Produced via submerged arc furnace smelting, followed by controlled solidification, precision crushing and screening, and batch-level chemical verification.
Quality Assurance Focus
- Traceable raw material sourcing
- Consistent chemical composition
- Particle size inspection
- Optional third-party verification
Ensures reliable, predictable supply essential for industrial operations.
Packaging & Handling
- Bulk packaging for steel and alloy plants
- Palletized packaging for precise dosing
- Moisture-resistant export packaging
- Designed for industrial-scale handling and shipping
Technical FAQs
Which grade is optimal for electronics or solar applications?
1101-grade silicon metal due to minimal Fe, Al, and Ca impurities.
Does particle size impact oxidation and silicon recovery?
Yes. Coarse (553) reduces oxidation; medium (441) ensures uniform dissolution and predictable chemical contribution.
Can specifications be customized?
Yes. Chemical composition and particle size can be tailored to match industrial process requirements.
Is 3303 or 2202 suitable for steelmaking, casting, and electronics simultaneously?
Yes, when particle size and grade are selected according to process needs.
About ZhenAn
ZhenAn specializes in industrial silicon metal and ferroalloy materials, serving steelmakers, alloy producers, and renewable energy material manufacturers. The company emphasizes process compatibility, batch consistency, and technical reliability, helping clients reduce operational risks rather than simply sourcing raw materials.
