Product Brief
Silicon metal is produced by carbothermic reduction of high-purity quartz (SiO₂) with carbonaceous reducing agents (petroleum coke, charcoal, wood chips) in submerged arc furnaces. It appears as a silver-gray metallic luster crystal. As a key industrial raw material, silicon metal is widely used in aluminum alloys, organic silicones, electronics, and solar energy industries.
Key Specifications (Typical Grades)
| Grade | Si Content (%) | Impurity Content (%, max) | Main Application |
|---|---|---|---|
| 553 | ≥ 98.5 | Fe: 0.5, Al: 0.5, Ca: 0.3 | General aluminum alloys, low-grade organic silicon |
| 441 | ≥ 99.0 | Fe: 0.4, Al: 0.4, Ca: 0.1 | Aluminum alloys, chemical industry |
| 421 | ≥ 99.2 | Fe: 0.4, Al: 0.2, Ca: 0.1 | High-quality organic silicon, silicone rubber |
| 3303 | ≥ 99.3 | Fe: 0.3, Al: 0.3, Ca: 0.03 | Aerospace aluminum alloys, special alloys |
| 2202 | ≥ 99.5 | Fe: 0.2, Al: 0.2, Ca: 0.02 | High-purity semiconductors, special chemicals |
Other grades (e.g., 1501, 1101) and custom impurity limits available upon request.
Main Applications
| Industry | Use |
|---|---|
| Aluminum Alloys | Additive to improve strength, hardness, and wear resistance (e.g., automotive wheels, castings) |
| Organic Silicon | Raw material for silicone oil, silicone rubber, silicone resin (used in construction, cosmetics, electronics) |
| Electronics & Solar | Refined into polysilicon for semiconductor chips and solar panels |
| Steel & Refractories | Deoxidizer in steelmaking; raw material for silicon steel |
Packaging & Storage
| Packaging Type | Details |
|---|---|
| Standard | 1 MT (1000 kg) jumbo bag, inner PE liner for moisture protection |
| Custom | Small bags (25 kg), steel drums, or as per buyer's request |
| Storage | Keep in dry, clean, well-ventilated warehouse; avoid moisture and contamination |
FAQ
Q:Are you a factory or a trading company?
A: We are a direct manufacturer of SiCaAl alloy and other ferroalloys. Our facility is ISO 9001:2015 certified, and we maintain full quality control from raw material selection to final packaging. This allows us to offer competitive pricing and consistent quality control.
Q:What certifications do you hold?
A: Our certifications include:
ISO 9001:2015 (Quality Management System)
CIQ Certification (China Inspection and Quarantine)
ISO 14001 (Environmental Management – optional for some facilities)
SGS, Bureau Veritas – Qualified supplier status
Q: Can you ship CIF or CFR to my port?
A: Yes. We offer multiple incoterms:
EXW (Ex-works, our factory)
FOB (Free on Board, Tianjin/Qingdao/Shanghai port)
CFR / CIF (Insurance optional)
Door-to-door for small express shipments
Please provide your destination port and container preference for an accurate shipping quote.
Q: Do you provide third-party inspection?
A: Yes. We can arrange inspection by SGS, Bureau Veritas, Intertek, or CIQ at the buyer's expense. The inspection can be conducted at our factory or at the loading port. Our standard Certificate of Analysis accompanies every shipment and is available for review before shipping.
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