Silicon Slag
Fengyang Metallurgical: Silicon Slag
Your Reliable Partner for High-Performance Silicon Slag Solutions

What is Silicon Slag?
“Silicon Slag: The Golden Byproduct of Metallurgy!”
Silicon slag is a silicon-rich byproduct generated during the production of ferrosilicon and silicon metal, typically containing 45%-75% silicon. As a professional silicon slag manufacturer and supplier, Fengyang Metallurgical transforms this “waste” into a high-value resource, widely used in steelmaking, casting, and chemical industries.
Parameters of Silicon Slag
Model Number: Si Slag 45/50/55/60/65/70
Material: Si, AI, Ca, Mn, C, P, S
Shape: Lumps
Category Size: 10-50mm,10-100mm,Customisation Accepted
Packing: 1 Mt Bag
Usage: Deoxidizer, Additive ,Refractory materials, Adsorbent
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Grades & Chemical Composition
“Precision Formulation, Superior Performance!”
| Grade | Composition (%) | Key Benefits | ||||||||
| Si | Fe | C | Al | Ca | S | P | H₂O | Oxides | ||
| ≥ | ≤ | |||||||||
| SiSlag45 | 45 | 2.5 | 4.0 | 2.0 | 17 | 0.1 | 0.04 | 1.0 | 28 | Cost-effective, fast melting |
| SiSlag50 | 50 | 2.0 | 3.5 | 1.8 | 15 | 0.1 | 0.03 | 1.0 | 26 | Improved casting yield |
| SiSlag55 | 55 | 1.8 | 3.0 | 1.5 | 13 | 0.08 | 0.02 | 1.0 | 24 | Enhanced strength & durability |
| SiSlag60 | 60 | 1.5 | 2.5 | 1.2 | 11 | 0.05 | 0.02 | 1.0 | 22 | Low impurities, consistent quality |
| SiSlag65 | 65 | 1.2 | 2.0 | 1.0 | 9 | 0.05 | 0.01 | 1.0 | 20 | High silicon content, low oxygen |
| SiSlag70 | 70 | 1.0 | 1.5 | 0.8 | 7 | 0.03 | 0.01 | 1.0 | 18 | Ultra-low impurities, high purity |
| SiSlag75 | 75 | 0.8 | 1.0 | 0.5 | 5 | 0.03 | 0.01 | 1.0 | 15 | Exceptional purity, tailored performance |
💡 Customization: Adjust silicon content and impurity levels. Batch-specific SGS inspection reports available!
Particle Size – Tailored for Your Process
“Small Particles, Big Impact!”
| Particle Size | Applications | Reaction Speed Improvement |
|---|---|---|
| Coarse (10-50mm) | Electric Arc Furnace Steelmaking | Stable & Uniform |
| Medium (1-10mm) | Casting Inoculant | Melting Efficiency ↑30% |
| Fine Powder (<1mm) | Chemical Synthesis | Instant Reaction |
⚙️ Special Services: Laser grading ensures ±5% precision. Anti-oxidation coating available!
Production Process – Quality You Can Trust
“Technology Ensures Quality, Details Define Success!”
Raw Material Selection
High-silicon slag + low-impurity reductants
Arc Melting
Precise temperature control at 1600°C for efficient silicon recovery
Smart Sorting
Airflow grading + magnetic separation, purity increased by 20%
Applications of Silicon Slag
“From Steelmaking to Chemicals, An Industrial Ally Everywhere!”
| Industry | Typical Applications | Customer Benefits |
|---|---|---|
| Steelmaking | Deoxidizer/Alloying Additive | Reduces cost per ton by 8-12% |
| Casting | Inoculant/Nodulizer | Improves casting yield by 25% |
| Chemicals | Raw material for silicates/refractories | Enhances reaction efficiency by 30% |
| Environmental | Wastewater treatment adsorbent | Heavy metal removal rate >90% |
Advantages of Fengyang’s Silicon Slag
Cost-Effective
30% lower cost than primary ferrosilicon, without compromising performance
Fast Reaction
Multiple particle sizes for different melting scenarios
Eco-Friendly
Industrial waste recycling, reducing carbon emissions by 15kg per ton
Why Choose Fengyang?
Supply Capacity & Delivery
Ample Inventory: 5,000+ tons in inventory, ready to ship.
Fast Response: Typically 14 days under FOB/CIF terms.
Bulk Discounts: Competitive pricing for large orders.
Sustainability Commitment
Zero-waste smelting process with 98% by-product recycling
Carbon footprint reduced by 20% through energy-efficient smelting.
ISO 14001 certified production facilities.
Service Assurance
Expert Team: 20+ years of metallurgical experience.
24/7 Support: Quick response to technical queries.
Free Samples: Test our products risk-free.
Consistency & Stability
“Every batch, the same high quality.”
Quality Control: Real-time XRF testing ensures ≤0.5% composition fluctuation.
Traceability: Blockchain-backed batch tracking for full transparency.
Certificates: Third-party inspection reports available.
Packaging & Shipping
“Safe and secure, from our factory to yours.”
Standard Packaging
Double-layer waterproof woven bags (1000kg/bag).
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Custom Packaging
Available to meet specific requirements.
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Shipping
Land + sea transport, 25 tons per 20GP container.
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Delivery Time
Orders are shipped within 14 days under normal circumstances, under FOB/CIF terms.
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Bulk Discounts
Competitive pricing for large-volume orders.
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Weighing

Truck Loading

Containerising

Loading the freighter

Transport by sea
FAQs About Silicon slag - “Your Concerns, Our Focus!”
Q: What’s the difference between silicon slag and ferrosilicon?
A: Silicon slag is a byproduct of ferrosilicon production, offering lower costs and flexibility in silicon content.
Q: Can you customize the chemical composition?
A: Yes! We can adjust Si, Al, Ca, and other elements to meet your needs.
Q: Do you have eco-certifications?
A: We are ISO 14001 certified and fully compliant with REACH regulations.
Q: How do you ensure batch consistency?
A: Each batch comes with an inspection report, and third-party verification is supported.
Q: What technical support do you offer?
A: From ratio recommendations to melting parameter optimization, we provide free guidance.
Q: Is silicon slag environmentally harmful?
A: Our silicon slag is deeply purified and safe for industrial use.
Q: What certifications do you have?
A: ISO 9001, ISO 14001, and OHSAS 18001 certified.
Q: Do you offer technical support?
A: Yes, our engineers provide application guidance and troubleshooting.
Q: Can I request a sample?
A: Absolutely! We offer free samples for qualified customers.
Q: How do you handle shipping documentation?
A: We manage all export/import documentation, including customs clearance.
Take Action Today – Let’s Build a Stronger Future Together!
Unlock the Power of Premium Silicon Metal!
📞 Get a Quote: Click to chat with our experts for a customized solution.
📦 Request Samples: Experience the superior performance of Fengyang’s silicon slag.
🌍 Global Delivery: Reliable logistics to ensure your order arrives on time.
High-purity silicon slag supplier, Custom particle size silicon slag manufacturer, Silicon slag for steelmaking, Eco-friendly recycled silicon slag, Casting-grade silicon slag powder, Fast-shipping silicon slag wholesale
Get In Touch With Us
This is our contact information.
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Phone:+86 15137218200
WhatsApp:+8615137218200
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Email:info@fyalloy.com
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Address:100 Meters East Of The South Intersection Of Mengjiazhuang Village, Long'an District, Anyang City, Henan Province.
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