Product Introduction
Silicon slag is a valuable by-product derived from the production of silicon metal and ferrosilicon alloys. Composed of 30% to 70% silicon (Si), it also contains traces of aluminum (Al), calcium (Ca), iron (Fe), and carbon (C). Though considered a secondary material, it is widely utilized in steelmaking, casting, and alloy production due to its cost-efficiency and functional properties.
🔹 Form: Granular or lumpy (custom sizes available)
🔹 Color: Dark gray to black
🔹 Melting Point: ~1414°C (varies with silicon content)
🔹 Key Grades: 45%, 50%, 55%, 60%, 65%, 70% Si
Specification
| Grade | Si (%) | Ca (%) | Al (%) | C (%) | S (%) | P (%) |
|---|---|---|---|---|---|---|
| Silicon Slag 50 | 50±2 | 5-10 | ≤5 | ≤5 | ≤0.1 | ≤0.05 |
| Silicon Slag 60 | 60±2 | 5-10 | ≤4 | ≤4 | ≤0.1 | ≤0.05 |
| Silicon Slag 65 | 65±2 | 4-8 | ≤3 | ≤3 | ≤0.1 | ≤0.05 |
📦 Size: 10-100mm (adjustable)
🔍 Packaging: 1MT jumbo bags or as per customer requirement
Key Features & Benefits
✅ Cost-Effective Alternative
- Lower price than pure silicon or ferrosilicon, reducing production costs.
- Ideal for budget-conscious manufacturers without compromising performance.
✅ Excellent Deoxidizer
- Removes oxygen from molten steel, improving steel purity and strength.
- Prevents porosity and defects in final steel products.
✅ Enhances Alloy Properties
- Boosts hardness & wear resistance in cast iron and steel.
- Promotes graphite formation, improving machinability in castings.
✅ Improves Fluidity in Casting
- Helps fill molds more efficiently, reducing casting defects.
- Ideal for foundries and metal casting industries.
✅ Eco-Friendly & Sustainable
- Recycles industrial waste, reducing environmental impact.
- Supports green manufacturing initiatives.
Application of Silicon Slag
🔥 Steelmaking Industry
- Deoxidation: Eliminates oxygen for cleaner, stronger steel.
- Alloying Agent: Enhances mechanical properties in steel alloys.
🔧 Foundry & Casting
- Cast Iron Production: Improves graphitization, reducing brittleness.
- Fluidity Enhancer: Ensures smooth mold filling in intricate castings.
⚙️ Ferroalloy Manufacturing
- Raw Material: Used in producing ferrosilicon and other alloys.
- Cost-Saving Input: Reduces reliance on high-purity silicon.
🧲 Other Industrial Uses
- Welding Electrodes: Acts as a coating material.
- Refractory Materials: Used in high-temperature linings.
Why Choose Us?
🏆 Premium Quality Assurance
- Strict chemical composition control for consistent performance.
- Multiple Si content options (45%-70%) to meet diverse needs.
🚚 Reliable Supply & Fast Delivery
- Large-scale production capacity ensures stable supply.
- Efficient logistics for on-time global shipments.
💰 Competitive Pricing
- Direct factory pricing – no middlemen, lower costs.
- Bulk discounts for long-term partners.
🛡️ Customized Solutions
- Adjustable sizes (0-10mm, 10-50mm, 10-100mm, etc.)
- Tailored silicon content for specific industrial requirements.
🌍 Trusted Global Supplier
- Exported to 20+ countries with certified quality (ISO, SGS).
- 24/7 customer support for technical & order assistance.
FAQ
Q: What is the typical silicon content in Silicon Slag?
A: 🔹 Silicon content ranges between 30% to 70%, depending on the grade. Custom compositions are also available.
Q: Can Silicon Slag replace Ferrosilicon completely?
A: 🔹 In many cases, yes. It depends on your process requirements. It's often used as a partial or full replacement depending on the steel grade and purity needed.
Q: How is Silicon Slag delivered?
A: 🔹 Standard packaging includes 1MT jumbo bags, but we can customize according to your logistics needs.
Q: Is there any environmental advantage?
A: 🔹 Yes! Silicon Slag is a recycled product, which promotes sustainable resource use and lowers the overall carbon footprint of steelmaking.
Q: Is it suitable for high-grade steel production?
A: 🔹 It's mainly used in carbon steel and cast iron production. For high-alloy or specialty steels, higher-grade alloys might be needed.
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