Silicon Metal plays a vital role in metallurgy and chemical industries. With 99.1% silicon content, industries rely on it for alloying, deoxidation, and chemical feedstock. The controlled levels of iron, aluminum, and calcium match the well-known Grade 441 profile. Therefore, buyers can trust it for consistent performance.
Silicon (Si): ≥ 99.1%
Iron (Fe): ≤ 0.4%
Aluminum (Al): ≤ 0.4%
Calcium (Ca): ≤ 0.1%
Standard Equivalent: Grade 441
These specifications ensure reliable chemistry for alloying and chemical processes. Moreover, they provide stability in foundry operations.
Industries use this material in Al-Si alloys. It improves fluidity, so molten metal flows evenly into molds. In addition, it reduces porosity and increases strength. As a result, manufacturers create better parts for automotive and aerospace sectors, such as wheels, engine blocks, and structural components.
Chemical producers rely on Silicon Metal as the starting point for silicones. For example, it is converted into methyl chlorosilanes, which later become adhesives, sealants, and lubricants. Furthermore, low impurities protect catalysts and improve product clarity. Therefore, construction, electronics, and healthcare industries continue to depend on it.
Steelmakers add this material during deoxidation. It removes oxygen from molten steel and stabilizes slag. Consequently, they achieve cleaner and stronger steel. Foundries also benefit, since it maintains consistent silica activity and reliable casting quality.
This grade is also valuable for renewable energy and battery research. For instance, researchers test it as a possible anode material in lithium-ion batteries. In fact, it stores more energy than graphite. Moreover, solar and semiconductor industries value its purity, which ensures efficient energy conversion.
| Element | Symbol | Content |
|---|---|---|
| Silicon | Si | ≥ 99.1% |
| Iron | Fe | ≤ 0.4% |
| Aluminum | Al | ≤ 0.4% |
| Calcium | Ca | ≤ 0.1% |
This chemistry supports clean processes. In addition, it provides consistency across different applications.
Lumps: 10–50 mm standard, or 10–100 mm when requested.
Chips: 3–10 mm, ideal for accurate dosing.
Powder: Custom meshes, such as −200, for chemicals and compounding.
Suppliers usually ship it in 1 MT jumbo bags with liners or 25 kg bags. Furthermore, they palletize and heat-treat all shipments to ensure safe handling.
It is mainly used in aluminum alloying, silicone chemistry, foundry deoxidation, and battery materials research. Its versatility makes it one of the most important industrial raw materials.
Yes. The chemistry of Si ≥ 99.1%, Fe ≤ 0.4%, Al ≤ 0.4%, and Ca ≤ 0.1% aligns with the 441 profile, commonly referred to as Silicon Metal 441.
Lumps are used in large-scale alloy production.
Chips are chosen for precise dosing or small furnaces.
Powder is best for chemical conversion and compounding.
It improves fluidity, casting quality, and microstructure control, leading to stronger and lighter aluminum components.
It is the primary raw material for organosilicon chemistry. Its purity ensures that downstream silicone products maintain clarity, strength, and performance.
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