Ferro Silicon 75
Ferro Silicon 75 (FeSi75) is a high-efficiency silicon ferroalloy engineered for steelmaking deoxidation, alloy adjustment, and iron foundry inoculation. Smelted in submerged electric arc furnaces, it delivers predictable silicon recovery rates, minimal oxide inclusions, and strict chemical composition control across heat batches.
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Product Introduction
Ferro Silicon 75 (FeSi75) is a high-efficiency silicon ferroalloy engineered for steelmaking deoxidation, alloy adjustment, and iron foundry inoculation. Smelted in submerged electric arc furnaces, it delivers predictable silicon recovery rates, minimal oxide inclusions, and strict chemical composition control across heat batches.
Key Product Features
Fast Deoxidation
High-power electric furnace smelting ensures Si ≥ 75%, generating low-melting SiO2 slag that floats out within 3–5 minutes to keep continuous casting nozzles clear.
Defect Suppression
Magnetic separation of raw materials and ladle vacuum degassing suppress impurities (C ≤ 0.2%, P ≤ 0.04%, S ≤ 0.02%), eliminating hot shortness and gas porosity in high-spec alloys.
High Silicon Yield
Water-cooled mold casting creates a dense crystal structure. Double-deck mechanical screening keeps fines under 5%, preventing thermal oxidation loss in ladles.
Applications
Steelmaking: Primary deoxidizer and alloying element for carbon, alloy, and stainless steel grades.
Iron Foundries: Inoculants and nodulizers for gray, ductile, and malleable cast iron production.
Ferroalloy Industry: Reducing agent in magnesium metal (Pidgeon process) and low-carbon ferroalloy production.
Customization & Supply Capabilities
|
Customization Parameter |
Available Options & Range |
|
Silicon Content (Si) |
Standard Si ≥ 75.0% | High-purity Si ≥ 76.0% | Tailored Si range upon request |
|
Aluminum Control (Al) |
Standard Al ≤ 1.5–2.0% | Low-Al ≤ 0.5% | Ultra-low Al ≤ 0.1% |
|
Carbon & Trace Impurities |
Standard C ≤ 0.2% (Low-C ≤ 0.05%) | Custom P (≤ 0.03%) & S (≤ 0.015%) controls |
|
Particle Size (Lumps) |
10–50 mm | 10–100 mm | 50–150 mm (max 5% fines under size threshold) |
|
Particle Size (Granules & Powder) |
Granules: 1–3 mm, 3–8 mm | Powder: 100 mesh, 200 mesh, 325 mesh |
|
Bag Packaging & Weight |
1,000 kg or 1,250 kg jumbo big bags | 25 kg PP inner bags packed on pallets |
Packaging & Logistics Security
Bulk Packaging: 1 MT or 1.25 MT UV-resistant jumbo bags with bottom discharge spouts.
Small Packaging: 25 kg multi-wall moisture-proof PP bags packed into 1 MT big bags or wooden pallets.
Transit Protection: Waterproof inner liners and heavy-duty strapping designed for ocean freight and multi-modal transport.
Quality Assurance & Process Control
Molten Metal Spectrometry: Sampling liquid alloy directly from the electric furnace and analyzing chemical composition via X-ray Fluorescence (XRF) spectroscopy prior to tapping.
Post-Crushing Sieve Analysis: Testing crushed batches through mechanical screen analyzers to measure particle size distribution and verify fine-particle percentages.
Lot Chemical & Moisture Auditing: Sampling finalized packaging lots to conduct lab testing for surface moisture, aluminum content, and trace impurity levels (C, P, S).
Third-Party Pre-Shipment Testing: Drawing joint samples at the warehouse or port for independent laboratory analysis (SGS, BV, or Intertek) to verify specification compliance.
Why Partner with Anyang Jingfengyuan Ferroalloy?
31-Year Metallurgical Lineage: Established in 1995, we leverage over three decades of manufacturing experience and 22+ senior engineers to offer tailored alloy ratios and tight tolerance controls.
Scalable Output & Fast Delivery: 80,000+ m² manufacturing base with 8+ dedicated production lines, ensuring an annual output of tens of thousands of tons for bulk orders.
Advanced & Mechanized Production: Equipped with upgraded medium-frequency induction furnaces and fully automated workflows for consistent chemical uniformity.
Certified Quality Assurance: Full batch traceability under ISO 9001, ISO 14000, and GJB 9001 standards, backed by complete in-house lab testing.
Global Logistics & Export Reach: Proven export track record with reliable fulfillment, serving industrial clients across 86+ countries.
FAQ
Q: What is the standard chemical specification for your FeSi75?
A: Our standard grade contains Si ≥ 75%, C ≤ 0.2%, P ≤ 0.04%, S ≤ 0.02%, and Al ≤ 1.5–2.0%. Low-aluminum or custom chemical compositions can be adjusted based on heat requirements.
Q: How do you prevent fines and degradation during long-distance transport?
A: We utilize drop-strength tested lumps and enforce strict mechanical screening prior to loading to keep sub-size fines under 5%. All jumbo bags are UV-protected and equipped with reinforced inner liners to prevent moisture degradation.
Q: Are Mill Test Certificates (MTC) provided with each consignment?
A: Yes. Every shipment includes a heat-traceable Mill Test Certificate (MTC) detailing chemical composition, particle sizing distribution, and batch numbers verified per production lot.
Q: Do you accept third-party pre-shipment inspections?
A: Yes. We fully support independent inspections by SGS, Bureau Veritas (BV), Intertek, or buyer-appointed inspection agents at the loading port or warehouse.
Q: What is the typical lead time for a 100 MT order?
A: Standard lump sizes (10–50mm, 10–100mm) typically ship within 10 to 15 days after receipt of LC or deposit. Custom sizing or low-aluminum grades require 15 to 20 days.
Q: What shipping terms and export documentation do you support?
A: We support FOB, CFR, and CIF shipping terms. Full export documentation suites-including Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin (Form E/CO), and MTC-are provided.
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