Silicon Metal 3303 / 2202 | High Purity 99.9% Si Flakes for Alloy Steel, Casting & Electronics
Industrial Pain Points: Why Silicon Metal Performance Cannot Be Overlooked
In steelmaking, alloy production, and high-purity electronic material manufacturing, silicon metal is a critical process variable rather than a simple raw material.
Common operational challenges include:
- Fluctuating deoxidation and alloying efficiency despite standardized grades
- Oxidation losses due to inappropriate particle size selection
- Impurities (Fe, Al, Ca) impacting steel, casting, and electronic materials
- Batch-to-batch variability complicating furnace operation and dosing
ZhenAn's Silicon Metal 3303 / 2202, offered in flakes with controlled particle sizes 553 and 441, addresses these challenges by ensuring consistent melting behavior, predictable chemical contribution, and optimized silicon recovery.
Product Overview & Industrial Applications
ZhenAn provides industrial-grade silicon metal with:
- Grades: 3303 / 2202 (industrial) and 1101 (high-purity reference)
- Particle Sizes: 553 (coarse) and 441 (medium)
- Forms: Flakes for precise melting and dosing
Industrial Benefits:
- Aligns silicon input with furnace scale, reaction kinetics, and purity requirements
- Reduces oxidation loss and improves silicon recovery
- Ensures batch-to-batch consistency for steel, alloy, and electronic-grade materials
Primary Applications:
- Alloy steel and carbon steel production
- Casting and foundry operations
- Electronic materials and battery feedstock
- Specialty chemical intermediates
Grade & Purity Overview
Silicon metal grade and purity are critical for industrial efficiency and product quality.
Typical 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 Implications:
- 3303: Cost-effective for bulk steelmaking and standard alloy applications
- 2202: Lower impurities for casting and controlled alloys
- 1101: High-purity requirement applications such as electronics and specialty steels
Particle Form & Size Considerations
Particle size and form determine oxidation behavior, melting rate, and alloying efficiency.
Flakes vs Granules
- Flakes: Larger surface area, faster dissolution, ideal for rapid alloying corrections
- Granules: Improved flowability, reduced dust, stable feeding for continuous or automated dosing
Size Selection
- 553 (Coarse): 10–100 mm; slower oxidation, higher silicon recovery, suitable for primary steelmaking
- 441 (Medium): 10–50 mm; faster dissolution, uniform distribution, preferred for casting and secondary alloying
ZhenAn enforces strict screening and batch-level verification to reduce variability and ensure predictable industrial performance.
Material Properties
- Metallic silver-gray crystalline structure
- Hard, brittle for controlled melting
- Melting point ~1414 °C
- Density ~2.33 g/cm³
- Stable thermal and electrical conductivity
These properties ensure predictable furnace behavior, consistent alloy composition, and reliable electronic material feedstock.
Application-Focused Performance
Steel & Alloy Production
Silicon metal acts as a deoxidizer and alloying regulator, affecting:
- Oxygen removal efficiency
- Slag-metal balance
- Final steel strength and cleanliness
Use Cases:
- 553-size 3303 / 2202 for primary steelmaking enhances silicon recovery and batch consistency
- 1101-grade ensures low-impurity alloying for specialty steels
Casting & Foundry
- Medium particle 441 ensures uniform dissolution
- Reduces impurity carryover, improving casting quality
- Optimizes graphite structure, fluidity, and mechanical properties
Electronics & Battery Materials
- High-purity 1101-grade silicon for polysilicon and photovoltaic materials
- Reduces downstream purification requirements
- Improves yield and quality for battery feedstock
Chemical Industry
- Supports organosilicon intermediates, silicone oils, and specialty chemical production
- Maintains catalyst efficiency and consistent reaction yields due to low impurities
Manufacturing & Quality Assurance
Produced via submerged arc furnace smelting, followed by:
- Controlled cooling
- Precision crushing and screening
- Batch-level chemical verification
QA Focus:
- Traceable raw material sourcing
- Stable chemical composition
- Particle size inspection
- Optional third-party verification
Ensures reliable, consistent supply, essential for professional industrial use.
Packaging & Handling
- Bulk bags for steel and alloy plants
- Palletized packaging for controlled dosing
- Moisture-resistant export packaging
- Designed for industrial-scale handling and transportation
Technical FAQ
Which applications require 1101-grade silicon?
High-purity applications such as electronics, polysilicon, and specialty steels.
Does particle size influence oxidation and silicon recovery?
Yes. Coarse (553) reduces oxidation and improves yield; medium (441) enhances uniform dissolution.
Can specifications be customized?
Yes. Chemical composition and particle size can be tailored to match process requirements.
Is 3303 or 2202 suitable for steelmaking, casting, and electronics?
Yes, when particle size and grade are selected according to specific industrial needs.
About ZhenAn
ZhenAn specializes in industrial silicon metal and ferroalloy materials, serving steelmakers, alloy producers, and advanced material manufacturers. The company emphasizes process compatibility, batch consistency, and technical reliability, helping clients minimize operational risks rather than simply sourcing raw materials.
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