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High Purity Silicon Metal

Silicon Metal (Metallurgical Grade) is a high-purity basic industrial material produced by smelting quartz and coke in submerged arc furnaces. With silicon content ≥ 98.5%, it serves as the fundamental raw material for aluminum alloy production, silicone chemical manufacturing, and photovoltaic polysilicon processing. No alternative material can fully replace its role in modern industry.

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Product Introduction

FAQ

Q: Which grade should I choose for aluminum die casting? A: 553# is sufficient for general cast aluminum parts. For automotive or aerospace grade aluminum alloy, 441# or 3303# is recommended to ensure low impurity control.

Q: What is the difference between metallurgical grade and solar grade silicon? A: Metallurgical grade (MG-Si) is 98.5–99.5% purity for basic industrial use. Solar grade (SoG-Si) requires 99.9999%+ purity and goes through additional purification processing. We supply MG-Si as feedstock for polysilicon plants.

Q: Can you supply consistent grade for annual framework orders? A: Yes. We maintain dedicated furnace production lines for contract customers, guaranteeing composition stability and monthly fixed volume supply throughout the year.

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Silicon Metal 553 98.7% Grade For Aluminum Alloy