Industrial Silicon Metal 553/441/1101 | Fine & Coarse Grain Si for Alloy, Cast Iron & Solar Panels | 3303/2202 Grade
Product Overview
ZhenAn Industrial Silicon Metal is a high-performance silicon material designed for alloy production, cast iron smelting, and solar panel manufacturing. Our silicon metal is produced with controlled grain sizes (553, 441, 1101) and stable industrial grades (3303 and 2202), ensuring reliable chemical consistency, efficient melting, and low impurity levels.
Available in both fine and coarse grain forms, ZhenAn silicon metal meets the demanding requirements of steel mills, foundries, and photovoltaic material producers worldwide.
Silicon Metal Grades & Chemical Composition
We offer multiple industrial silicon metal grades to suit different application needs.
Typical Chemical Composition (%)
| Grade |
Si |
Fe |
Al |
Ca |
| Silicon Metal 3303 |
≥99.3 |
≤0.3 |
≤0.3 |
≤0.03 |
| Silicon Metal 2202 |
≥99.5 |
≤0.2 |
≤0.2 |
≤0.02 |
| Silicon Metal 1101 |
≥99.8 |
≤0.1 |
≤0.1 |
≤0.01 |
Chemical composition can be customized according to specific industrial requirements.
Grain Sizes & Specifications
Standard Sizes
- 553 Grade (Coarse Grain): 10–100 mm
- 441 Grade (Medium Grain): 10–50 mm
- 1101 Grade (Fine Grain / High Purity): Customized sizes available
Grain Size Benefits
- Fine grain silicon metal offers faster reaction and uniform alloying
- Coarse grain silicon metal reduces oxidation loss and dust formation
- Optimized size distribution improves furnace efficiency and yield
Physical Properties
- Appearance: Silver-gray crystalline silicon
- Melting Point: Approx. 1414 °C
- Density: 2.33 g/cm³
- Excellent thermal conductivity
- Strong oxidation resistance during smelting
Applications
Alloy & Steel Production
Industrial silicon metal acts as a deoxidizer and alloying element:
- Improves steel strength and hardness
- Enhances oxidation resistance
- Stabilizes metallurgical reactions
Grades 3303 and 2202 are widely used in carbon steel and alloy steel smelting.
Cast Iron Manufacturing
Silicon metal plays a critical role in cast iron production:
- Improves graphite formation
- Enhances fluidity and casting quality
- Reduces carbide formation
Fine and medium grain sizes (441, 1101) ensure controlled silicon addition.
Solar Panels & Photovoltaic Industry
High-purity silicon metal (1101 grade) is used as raw material for:
- Polysilicon production
- Solar-grade silicon processing
- Photovoltaic material manufacturing
Low impurity levels ensure high conversion efficiency in solar applications.
Why Choose ZhenAn Industrial Silicon Metal?
- Multiple Grades & Grain Sizes for different industries
- High Purity & Low Impurities
- Stable Chemical Composition
- Strict Quality Control from smelting to shipment
- Reliable Global Supply with export experience
Our silicon metal is produced using advanced submerged arc furnace technology and tested to ensure batch consistency and industrial reliability.
Quality Assurance & Certification
- ISO-certified production facilities
- Chemical analysis for each production batch
- Third-party inspection available (SGS, BV)
- COA and MSDS provided
These measures ensure trust, compliance, and long-term cooperation.
Packaging & Logistics
- 1 MT jumbo bags
- 25 kg bags with pallet
- Moisture-proof export packaging
- Suitable for long-distance sea transportation
Frequently Asked Questions (FAQ)
Q1: What is the difference between 553, 441, and 1101 silicon metal sizes?
A: These refer to different grain size distributions and purity levels. 553 is coarse grain, 441 is medium grain, and 1101 is fine grain with higher purity.
Q2: Which grade is suitable for cast iron production?
A: Silicon Metal 3303 and 2202 with 441 or 553 sizes are commonly used in cast iron smelting.
Q3: Can you supply silicon metal for solar panels?
A: Yes, high-purity 1101 silicon metal is suitable for photovoltaic and solar-grade silicon production.
Q4: Do you offer customized specifications?
A: Yes, both chemical composition and particle size can be customized.
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