Silicon Metal 2202 - Product Introduction
Silicon metal 2202, also known as crystalline silicon or industrial silicon, is a high-purity ferroalloy additive produced by smelting quartz and coke in an electric heating furnace. With a silicon content of approximately 99.58%, this grade delivers excellent performance in aluminum alloying, steel deoxidation, and chemical synthesis. The 2202 designation refers to the controlled impurity ceilings: Fe ≤0.2%, Al ≤0.2%, Ca ≤0.02%, making it suitable for applications demanding consistent chemical behavior and minimal trace elements.
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Core Selling Points
- High purity Si ≥99.58% with tightly controlled Fe, Al, and Ca impurities.
- Proven performance in aluminum alloy strengthening and steel deoxidation.
- Stable carbothermic production process ensuring batch-to-batch consistency.
- Flexible sizing from 1–10mm up to 10–100mm lumps, with custom granulation on request.
- Backed by 30 years of ferroalloy supply experience and ISO-aligned quality protocols.
Technical Specifications & Grades
The following table shows typical chemical composition ranges for common grades. Exact inventory and latest batch certificates are available on request.
| Grade | Composition | ||||
| Si Content(%) | Impurities(%) | ||||
| Fe | Al | Ca | P | ||
| Silicon Metal 2202 | 99.58 | 0.2 | 0.2 | 0.02 | ≤0.004% |
Industry typical grades also include 1101, 2502, 3303, 441, and 553. Please confirm current stock availability and exact certificates before placing an order.
Need a reliable ferroalloy supplier? Contact ZhenAn International via WhatsApp (+86 15518824805) or email market@zanewmetal.com. ZhenAn International Co., Limited - 30 Years of Ferroalloy Experience | Website: www.metal-alloy.com
Applications & Industries
Aluminum Alloying: Silicon metal 2202 is widely added to aluminum melts to improve fluidity, tensile strength, and corrosion resistance. Automotive engine blocks, wheel rims, and structural extrusions benefit from the refined grain structure achieved with this grade.
Steel Deoxidation & Desulfurization: In electric-arc and basic-oxygen steelmaking, 2202-grade silicon reacts with dissolved oxygen and sulfur, producing cleaner steel with improved mechanical properties and surface finish.
Chemical & Silicone Synthesis: The low-calcium profile of 2202 makes it a preferred feedstock for producing silicone polymers, resins, and silanes used in sealants, coatings, and electronic encapsulants.
Solar & Semiconductor Precursor: While electronic-grade polysilicon requires further refining, metallurgical silicon 2202 serves as an economical starting material for solar-grade silicon purification routes.
Product Delivery, Packaging & Logistics
Physical Form: Silver-gray crystalline lumps. Standard sizing includes 1–10mm, 10–100mm, and natural blocks. Custom sizing such as 3–10mm, 1–3mm, or 0–1mm powder is available upon request.
Packaging: Standard 1-ton jumbo bags (1000 kg/bag) with moisture-resistant inner liners. Alternative packaging includes 25 kg sealed PE bags on pallets, or bulk container loading for large-volume buyers.
Logistics: FOB Tianjin / Qingdao, CIF, or DAP terms available. Typical delivery time is within 10 days after deposit confirmation. Samples and product brochures can be provided free of charge for qualified inquiries.
Frequently Asked Questions
- Q: What is the difference between Silicon Metal 2202 and 441?
- A: Silicon metal 2202 has a higher purity (Si ≥99.58%) with lower Fe, Al, and Ca limits compared to 441 (Si ≥99.1%). This makes 2202 better suited for chemical synthesis and high-performance aluminum alloys, while 441 is typically used in standard metallurgical applications where cost efficiency is critical.
- Q: Do you provide mill test certificates with each shipment?
- A: Yes. Every batch is accompanied by a mill test certificate (MTC) showing chemical composition, weight, and packaging details. Third-party SGS inspection can also be arranged on request.
- Q: Can I order a mixed container with multiple silicon grades?
- A: Absolutely. We routinely load mixed-grade containers to help buyers optimize inventory. Please share your target blend and we will confirm packing details and container utilization.
- Q: What payment terms do you accept?
- A: We accept T/T (telegraphic transfer) and L/C (letter of credit) at sight. For repeat customers, open-account terms may be discussed after an initial successful order cycle.
Contact ZhenAn International Today
WhatsApp: +86 15518824805
Email: market@zanewmetal.com
ZhenAn International Co., Limited - 30 Years of Ferroalloy Experience | Website: www.metal-alloy.com
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