Ferro Silicon
Product Name: Ferro Silicon
Available Grades: FeSi75, FeSi72, FeSi65, FeSi45
Common Size: 10–50mm, 10–60mm, 10–100mm or customized
Packing: Jumbo bags, drums, pallets or customized export packing
Payment Terms: T/T, L/C or other terms confirmed by order
Documents: COA, packing list, commercial invoice and MSDS/SDS can be provided according to shipment requirements
Ferro Silicon for Steelmaking and Alloy Production
Ferro silicon is an iron-silicon alloy made from coke, steel scrap and quartz or silica by electric furnace smelting. It is widely used in steelmaking, alloy production, foundry and ferroalloy production as a deoxidizer, silicon additive and reducing agent.
Zhen An supplies common ferro silicon grades including FeSi45, FeSi65, FeSi72 and FeSi75. The suitable grade should be selected according to silicon content, impurity limits, particle size, furnace charging method, packing requirement and batch COA.
Ferro Silicon Chemical Composition
The following chemical composition is for common ferro silicon grades. Final Si content, impurity limits, particle size, packing method and documents should be confirmed according to batch COA and written quotation.
| Model | Chemical Composition (%) | |||||||
|---|---|---|---|---|---|---|---|---|
| Si | Al Max | Ca Max | Mn Max | Cr Max | P Max | S Max | C Max | |
| FeSi75 | ≥75 | ≤1.5 | ≤1.0 | ≤0.5 | ≤0.5 | ≤0.04 | ≤0.02 | ≤0.2 |
| FeSi72 | ≥72 | ≤2.0 | ≤1.0 | ≤0.5 | ≤0.5 | ≤0.04 | ≤0.02 | ≤0.2 |
| FeSi65 | ≥65 | ≤2.0 | ≤1.0 | ≤0.7 | ≤0.5 | ≤0.04 | ≤0.02 | ≤0.2 |
| FeSi45 | 40-47 | ≤2.0 | ≤1.0 | ≤0.7 | ≤0.5 | ≤0.04 | ≤0.02 | ≤0.2 |
Specification Note: The above data is for reference. Final chemical composition, particle size, packing method and export documents should be confirmed according to batch COA and written quotation.
How to Choose FeSi45, FeSi65, FeSi72 or FeSi75
Different ferro silicon grades are selected according to silicon addition target, steelmaking process, impurity tolerance and cost control. Before ordering, Si content, Al level, particle size, packing and COA should be confirmed together.
| Grade | Main Direction | What to Confirm Before Order |
|---|---|---|
| FeSi75 | Suitable for steelmaking deoxidation, alloying and applications requiring higher silicon content. | Si content, Al limit, C, P, S, particle size, packing and COA. |
| FeSi72 | Commonly used for general steelmaking, alloy production and furnace addition. | Si content, impurity limits, particle size and packing method. |
| FeSi65 | Suitable for cost-controlled silicon addition and general metallurgical use. | Grade, Si content, Mn limit, particle size and COA. |
| FeSi45 | Used when lower silicon content is acceptable and cost control is more important. | Actual Si range, furnace process, particle size and batch specification. |
Ferro Silicon Size and Packing
Ferro silicon can be supplied in lump, granule or powder form according to furnace charging and production requirements. The original available sizes on this page include:
- 0.2-0.7mm
- 0.7-1.0mm
- 1.0-3.0mm
- 3.0-8.0mm
Other lump sizes and export packing can be confirmed according to order requirements. Common packing can include jumbo bags, drums, pallets or customized export packing. For container shipment, packing method, shipping marks and loading plan should be confirmed before delivery.
Main Applications of Ferro Silicon
Ferro silicon is mainly used in metallurgical production where silicon addition and deoxidation are required. It should not be described as a material for plating, die casting or polyurethane casting.
- Steelmaking deoxidation: helps remove oxygen from molten steel and supports cleaner steel production.
- Alloying addition: used as a silicon source in low-alloy steel, spring steel, bearing steel, heat-resistant steel and electrical silicon steel.
- Foundry application: selected according to casting process, particle size and silicon requirement.
- Ferroalloy production: can be used as a reducing agent or silicon additive in suitable metallurgical processes.
COA and Export Documents
For ferro silicon export orders, batch COA is important for confirming Si content, Al level, Ca, Mn, Cr, C, P, S limits and actual shipment quality. Before shipment, the product label, batch number, packing list and COA should match the physical cargo.
- COA for chemical composition
- Packing list and commercial invoice
- MSDS/SDS when required
- Third-party inspection can be discussed according to order requirements
To check whether our ferro silicon matches your purchasing standard, you can send us the required grade, particle size, quantity and destination port. We can confirm the available COA, packing method, shipment documents and current quotation according to your order details.
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How to Request Ferro Silicon Quotation
To confirm ferro silicon quotation, please send the required grade, Si content, particle size, quantity, packing method and destination port. Final price may vary according to grade, impurity limits, size, order quantity, packing and shipping terms.
Get Ferro Silicon Specification & Price
FAQ
Q1: What ferro silicon grades can you supply?
A: Common available grades include FeSi45, FeSi65, FeSi72 and FeSi75. Final grade, Si content, impurity limits, size and packing should be confirmed according to order requirements and batch COA.
Q2: What is the difference between FeSi75 and FeSi65?
A: FeSi75 has higher silicon content and is usually selected when stronger silicon addition or stricter grade control is required. FeSi65 can be used when lower silicon content is acceptable and cost control is more important.
Q3: What particle sizes are available?
A: Available sizes on this page include 0.2-0.7mm, 0.7-1.0mm, 1.0-3.0mm and 3.0-8.0mm. Other sizes can be discussed according to application and order requirements.
Q4: Can you provide COA for ferro silicon?
A: Yes. COA can be provided to confirm Si, Al, Ca, Mn, Cr, C, P, S and other agreed parameters. Packing list, commercial invoice and MSDS/SDS can also be prepared for export orders.
Q5: What information is needed before quotation?
A: Please provide grade, Si content, particle size, quantity, packing requirement and destination port. COA or third-party inspection requirements should also be confirmed before quotation.
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