1. Products Description
Silicon Metal is a high-purity metallurgical grade silicon produced by smelting quartz and carbonaceous reducing agents in an electric arc furnace. It contains a minimum of 98.5% silicon, with strictly controlled levels of iron, aluminum, and calcium. As a fundamental raw material for many industrial sectors, Silicon Metal 553 is widely used in aluminum alloy production, chemical industry (silicones, silanes), and semiconductor manufacturing. Its excellent combination of purity and cost-effectiveness makes it a preferred choice for bulk industrial applications.
2.Key Features
High silicon content (≥98.5%)
Low impurity levels (Fe ≤0.5%, Al ≤0.5%, Ca ≤0.3%)
Consistent quality with minimal batch variation
Available in various sizes (10–100mm lumps, granules, powder)
Customizable packaging (jumbo bags, small bags on pallets)
3. Main Applications
In aluminum alloys, silicon metal serves as an alloying agent to improve the strength, hardness, and castability of aluminum products. It also plays a key role as a raw material in the production of silicones, silanes, and other organosilicon compounds. In steelmaking, it is used as a deoxidizer and alloy additive in specialty steel production. Additionally, silicon metal is utilized in the manufacture of electronic materials, including polysilicon for solar cells and semiconductors.
4. Typical Chemical Composition
| Element | Content (%) |
|---|---|
| Si | 98.5 min |
| Fe | 0.50 max |
| Al | 0.50 max |
| Ca | 0.30 max |
Note: Other grades (e.g., 441, 3303, 2202, 1101) are also available upon request.
5. Packaging & Delivery
Packaging: 1 MT jumbo bags, 25 kg small bags on pallets, or as per customer requirement.
Size: 10–50mm, 10–100mm, 3–10mm granules, or powder.
Delivery: 15–20 days after order confirmation.
6.Why Choose Our Products?
1. Superior Product Performance
Our ferrosilicon / silicon metal products feature a high silicon recovery rate and highly stable chemical composition with minimal batch-to-batch variation. This ensures consistent smelting results and reduces the need for frequent process adjustments, thereby guaranteeing continuous and stable production.
2. Rigorous Impurity Control
We strictly control harmful impurities such as aluminum, phosphorus, sulfur, and carbon at very low levels. This helps reduce non-metallic inclusions in molten steel, significantly improves steel cleanliness, and ultimately enhances the toughness, weldability, and corrosion resistance of the finished steel.
3. Flexible Customization
For different customers' melting equipment (such as induction furnaces, arc furnaces, and medium-frequency furnaces) and feeding processes, we offer various sizing solutions including lumps, granules, and powder, ensuring smooth feeding, uniform melting, and improved operational efficiency.
4. Significant Economic Benefits
Using our products effectively increases the yield of qualified products, reduces scrap rates, and optimizes the mechanical properties, surface quality, and internal density of the final steel, helping you lower overall production costs.
5. Reliable Supply and Service
We source from ISO-certified facilities with full quality control from raw materials to finished products. We also offer flexible packaging options (jumbo bags, small bags on pallets, etc.) and efficient global logistics support to ensure on-time delivery.
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