What Is Industrial Silicon Used For?How Much Is One Kilogram Of Silicon?
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| Japanese industrial silicon prices on August 18 | ||||
| Brand | price | unit | Origin | Remark |
| 553 | 1350-1380 | US dollars/ton | China | CIFYokohama |
| 441 | 1400-1450 | US dollars/ton | China | CIFYokohama |
| Korean industrial silicon prices on August 18 | |||||
| Brand | price | Rise and fall | unit | Origin | Remark |
| 553 | 1350-1380 | -- | US dollars/ton | China | CIFBusan |
| 441 | 1400-1450 | -- | US dollars/ton | China | CIFBusan |
| Indian industrial silicon prices on August 18 | |||||
| Brand | price | Rise and fall | unit | Origin | Remark |
| 553 | 1350-1380 | -- | US dollars/ton | China | CIF-Nhava Sheva |
| 441 | 1400-1450 | -- | US dollars/ton | China | CIF-Nhava Sheva |
| US industrial silicon prices on August 18 | ||||
| Brand | price | Rise and fall | unit | Remark |
| 98.50% | 1.45-1.6 | -- | USD/lb | DDP |
| European industrial silicon prices on August 18 | ||||
| Brand | price | Rise and fall | unit | Remark |
| 98.50% | 2200-2250 | -- | Euro/ton | DDP |
| 99% | 2300-2350 | -- | Euro/ton | DDP |
| China's industrial silicon powder prices on August 18 | ||
| Note: RMB/ton, polysilicon purchase and delivery price | ||
| Specification | Today's industrial silicon powder price | Sold Price |
| 553 (16-200 mesh) | 9800-10500 | 9500-10500 |
| Si≥99% (16-200 mesh) | 10000-10600 | 9600-10500 |
| China's export price of industrial silicon on August 18 | |||
| Brand | Today's industrial silicon tax-inclusive price | Rise and fall | Remarks (USD/ton) |
| Industrial Silicon 421 | 1500-1550 | -- | Huangpu Port, FOB |
| Industrial silicon 2202 | 2150-2250 | -- | Huangpu Port, FOB |
| Industrial silicon 3303 | 1530-1560 | -- | Huangpu Port, FOB |
| Industrial Silicon 441 | 1380-1430 | -- | Huangpu Port, FOB |
| Industrial Silicon 553 | 1340-1360 | -- | Huangpu Port, FOB |
Industrial silicon (or silicon metal), a high-purity form of silicon (typically 98–99.9% Si), is critical across multiple industries:
• Metallurgy: Used as an alloying agent in aluminum (Al-Si alloys) to enhance castability, corrosion resistance, and mechanical strength-common in automotive parts, aerospace components, and construction materials.
• Electronics & Semiconductors: A foundational material for silicon wafers, integrated circuits (ICs), and solar cells (photovoltaics), leveraging its semiconducting properties.
• Chemicals: Serves as a raw material for producing silicones (used in sealants, lubricants, and medical devices) and organosilicon compounds (e.g., silicones, silanes).
• Foundry & Casting: Added to ferrous/non-ferrous alloys to improve hardness, wear resistance, and high-temperature performance.
• Abrasives & Refractories: Used in grinding wheels, refractory bricks, and kiln linings due to its high melting point (~1,414°C).
Silicon metal powder (finely granulated silicon metal) is utilized in specialized applications requiring controlled particle size and reactivity:
• Powder Metallurgy: Pressed and sintered to manufacture precision components (e.g., bearings, bushings) in automotive and machinery industries.
• Additive Manufacturing (3D Printing): Used as a feedstock for metal 3D printers to create complex silicon-based parts for prototyping or high-performance applications.
• Ceramics & Composites: Blended with ceramics (e.g., silicon nitride) to enhance thermal shock resistance or with metals (e.g., aluminum) to produce lightweight, high-strength composites.
• Chemical Synthesis: Acts as a precursor for producing silicon carbide (SiC), silicon nitride (Si₃N₄), or other advanced ceramics.
• Electronics: Used in sintering processes for semiconductor packaging or as a conductive filler in electronic pastes.
• Foundry Alloys: Added to molten aluminum or magnesium to refine grain structure and improve mechanical properties in cast components.
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