High Purity Silicon Metal Powder for Industrial Applications
Silicon Metal Powder is a finely processed material produced by crushing, grinding, and classifying silicon metal into controlled particle sizes. It contains high silicon content with low levels of metallic impurities, making it suitable for applications requiring precise silicon addition and high reaction efficiency.
Due to its excellent chemical properties, controlled particle size distribution, and adjustable purity grades, silicon metal powder is widely used in aluminum alloy production, metallurgical processes, silicone chemical manufacturing, refractory materials, and powder metallurgy industries.
Silicon Metal Powder Specifications
Available Grades
| Grade |
Silicon (Si) |
Iron (Fe) |
Aluminum (Al) |
Calcium (Ca) |
Particle Size |
| Silicon Metal Powder Si 98% |
≥98% |
Controlled |
Controlled |
Controlled |
Customized |
| Silicon Metal Powder Si 99% |
≥99% |
Low impurity |
Low impurity |
Low impurity |
Customized |
| High Purity Silicon Powder |
≥99% |
Strict control |
Strict control |
Strict control |
Customized |
Available Particle Sizes
- 45 mesh
- 100 mesh
- 150 mesh
- 200 mesh
- 325 mesh
- 400 mesh
- Customized micron size
Particle size selection depends on application requirements, including reaction rate, mixing performance, and processing technology.
Chemical Composition
| Element |
Typical Control |
| Silicon (Si) |
98%-99% |
| Iron (Fe) |
Low controlled content |
| Aluminum (Al) |
Controlled level |
| Calcium (Ca) |
Controlled level |
Low impurity silicon powder is preferred for applications requiring stable alloy composition and consistent product performance.
Industrial Applications
Aluminum Alloy Metallurgy
Silicon metal powder is an important raw material for aluminum-silicon alloy production. During aluminum alloy manufacturing, silicon improves:
- Casting performance
- Fluidity of molten aluminum
- Wear resistance
- Mechanical properties
- Alloy structure stability
Common applications include aluminum-silicon casting alloys, automotive aluminum components, industrial aluminum products, and special aluminum alloy production.
Chemical Industry
Silicon metal powder is widely used in silicon-based chemical production. Its high surface area and controlled particle size make it suitable for:
- Silicone materials
- Organosilicon compounds
- Silane-related materials
- Silicon chemical intermediates
Metallurgical Applications
In metallurgical industries, silicon metal powder is used as a silicon additive and alloying material for:
- Steel alloy production
- Silicon alloy manufacturing
- Powder metallurgy
- Special alloy preparation
Refractory Materials
Fine silicon powder can also be used in advanced refractory applications with advantages including:
- High temperature resistance
- Good chemical stability
- Improved material performance
Product Advantages
- Controlled Silicon Content for accurate material addition
- Low Impurity Levels to maintain product consistency
- Customized Particle Size to match various production processes
- Stable Batch Quality through strict quality inspection
- Flexible Packaging Options including 25kg bags, 500kg jumbo bags, and customized export packaging
Selection Guidelines
For Aluminum Alloy Production
Recommended: Si 98%-99% with stable chemical composition and suitable particle size for mixing.
For Chemical Applications
Recommended: Higher purity grades with low impurity content and fine particle size.
For Metallurgical Applications
Recommended: Cost-effective silicon grades with customized particle size according to process requirements.
Quality Control
ZhenAn applies comprehensive quality control procedures including:
- Raw material inspection
- Chemical composition analysis
- Particle size testing
- Batch consistency evaluation
- Packaging inspection
Quality documents such as COA are available according to customer requirements.
Frequently Asked Questions
What is silicon metal powder used for?
Silicon metal powder is mainly used in aluminum alloy production, chemical industry, metallurgy, refractory materials, and silicon-based material manufacturing.
What purity grades are available?
Common grades include Si 98%, Si 99%, and high purity silicon powder grades depending on application requirements.
What particle sizes can be supplied?
Silicon metal powder can be supplied in different mesh sizes, including 100 mesh, 200 mesh, 325 mesh, and customized particle sizes.
What is the difference between silicon metal powder and silicon metal?
Silicon metal is usually supplied in lump form, while silicon metal powder is produced by crushing and grinding silicon metal into fine particles for applications requiring faster reaction and better mixing.
Which silicon metal powder is suitable for aluminum alloy production?
For aluminum alloy metallurgy, Si 98%-99% silicon metal powder with controlled impurities is commonly selected to achieve stable alloy composition.
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