Product Description
Silicon metal is an industrial material produced by smelting high-purity quartz and carbon materials in a submerged arc furnace. It is widely applied in aluminum alloys, chemical production, electronics, and new energy industries. In aluminum alloys, silicon metal enhances hardness, corrosion resistance, and casting performance. In the chemical industry, it is the key raw material for producing silicones, silanes, and fumed silica. Refined high-purity silicon is also indispensable in the semiconductor and solar photovoltaic sectors.
Specification
| Grade | Si (%) min | Fe (%) max | Al (%) max | Ca (%) max | Typical Use |
|---|---|---|---|---|---|
| 553 | 98.5 | 0.50 | 0.50 | 0.30 | Aluminum alloys, casting |
| 441 | 99.0 | 0.40 | 0.40 | 0.10 | Aluminum alloys, foundry |
| 3303 | 99.3 | 0.30 | 0.30 | 0.03 | Chemical, special alloys |
| 2202 | 99.5 | 0.20 | 0.20 | 0.02 | Chemical industry |
| High Purity | 99.99+ | - | - | - | Semiconductors, solar energy |
Characters
High Purity: stable Si content, low impurities
Good Reactivity: excellent performance in chemical synthesis
High Stability: resistant to oxidation and corrosion
Versatile Applications: used in alloys, chemicals, electronics, and energy
Customizable Size & Grade: meeting different industrial requirements
How to Identify High-Quality Silicon Metal?
Chemical Purity: High Si content (≥98.5%), with low Fe, Al, and Ca.
Appearance: Clean metallic luster, uniform particle size, minimal powder.
Consistency: Stable grade without large fluctuations between batches.
Inspection Reports: Verified by SGS, BV, or third-party testing agencies.
Why Is Silicon Metal Essential in the Chemical Industry?
Silicon metal is the backbone of the silicone industry, used to produce siloxanes, silicones, and silanes. These are further processed into sealants, adhesives, lubricants, coatings, waterproofing agents, and medical-grade products. Its role in fumed silica production also supports industries like electronics, construction, automotive, and healthcare. Without silicon metal, many advanced chemical materials and high-performance products would not exist.
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