Silicon Metal 553, often referred to as SI 553, is a common metallurgical grade silicon used primarily in the aluminum industry, silicone production, and chemical applications. The name “553” refers to its composition:
Silicon (Si): ≥ 98.5%
Iron (Fe): ≤ 0.5%
Aluminum (Al): ≤ 0.5%
Calcium (Ca): ≤ 0.3%
Its stable composition, cost-effectiveness, and wide applicability make SI 553 one of the most widely purchased grades on the global market.
Companies in industries such as:
Aluminum alloy manufacturing
Steelmaking (as deoxidizer)
Silicone compounds & resins
Chemical processing plants
…rely on SI 553 for its balance of purity and affordability. Whether you’re a trader, alloy plant, or chemical producer, SI 553 offers a solid return on investment for large-scale production.
At Beifang Alloy, we understand the varying needs of global buyers. That’s why we offer:
✅ Consistent quality control
✅ Customized particle sizes (10-100mm, 0-10mm, etc.)
✅ Flexible packaging (1MT jumbo bags or as required)
✅ Timely delivery for large-volume orders
According to market insights:
The global silicon metal market is growing at over 5% CAGR, driven by demand in aluminum and solar industries.
SI 553 remains the top-selling grade due to its economic value for metallurgical processes.
China remains the largest producer and exporter, with factories like Beifang Alloy at the forefront.
Customers from South Korea, Japan, Europe, and South America consistently demand SI 553 for its stable performance in casting and refining.
When sourcing SI 553, consider these key points:
| Factor | What to Check |
|---|---|
| Purity | Ask for chemical analysis reports (COA) |
| Size | Ensure the particle size matches your production need |
| Packing | Jumbo bags or steel drums for export? |
| Shipping | FOB, CIF, or DDP terms? Choose the best for your region |
| MOQ | Beifang supports flexible MOQ based on your port |
📦 Beifang Alloy offers full pre-shipment inspection, customizable specs, and multilingual support to ensure smooth procurement.
| Feature | Beifang Alloy | Others |
|---|---|---|
| In-house factory | ✅ | ❌ Often trading only |
| Export to 70+ countries | ✅ | ❌ Limited coverage |
| Chemical consistency | ✅ | ⚠ May vary batch to batch |
| Fast shipping | ✅ | ⚠ Longer lead time |
| One-on-one service | ✅ | ⚠ Generic support |
At Beifang Alloy, we combine factory-direct pricing with international export experience. Our warehouse, processing lines, and export team ensure that every order is fulfilled reliably and efficiently.
Looking for a reliable SI 553 supplier? Get in touch with our team for:
📄 Free COA / Spec Sheets
💬 Fast quote (within 24 hours)
🌍 Export-ready logistics
📧 Email: info@hnxyie.com
🌐 Website: www.beifangalloy.com
