Ferrosilicon FeSi75 High Grade Ferro Silicon Alloy for Steelmaking Foundry

Ferrosilicon is an essential metallurgical ferroalloy produced by smelting quartz, coke and steel scrap in submerged arc furnace, mainly composed of silicon and iron. FeSi75 is the most widely used grade across steel plants, foundries and non-ferrous metal smelting industries.

Silicon features strong affinity with oxygen, making ferrosilicon an efficient deoxidizer to eliminate oxygen in molten steel, reduce blowholes and inclusions, and improve finished steel mechanical performance. In foundry industry, ferrosilicon works as inoculant to refine graphite structure of gray iron and ductile iron, avoid chill defects, boost casting strength and machinability. It also acts as powerful reducing agent for magnesium smelting and other ferroalloy manufacturing.

HONVAN provides consistent quality ferrosilicon with strictly controlled impurities. We offer lump, granular and powder forms to satisfy different process requirements. Each batch comes with chemical analysis certificate. We serve steel mills, foundries, smelter factories worldwide including Europe, Russia, Central Asia, Southeast Asia and Africa. Custom specifications are acceptable upon request.

Core Advantages

· Stable silicon content, low harmful impurities, little batch to batch deviation

· High deoxidation efficiency, lower consumption for steel-making

· Excellent inoculation performance for ductile iron & grey iron casting

· Flexible particle size: lump, grain, powder for different working conditions

· Full inspection documents: chemical analysis sheet, ISO test report

· Bulk export packing, suitable for sea & land container shipment

Main Applications

1. Steelmaking: Deoxidizer & alloying agent for carbon steel, silicon steel, spring steel, high strength low alloy steel. Improve hardness, elasticity and magnetic property of steel.

2. Foundry: Inoculant for grey cast iron and ductile iron, refine graphite grain, prevent white chill, reduce casting crack risk.

3. Nonferrous smelting: Reducing agent for metal magnesium production.

4. Ferroalloy production: Reductant for producing silicomanganese and other ferroalloys.

5. Auxiliary raw material: Welding electrode raw material, powder metallurgy, heat generating agent for molten steel temperature rising.

Ferrosilicon is mainly used as deoxidizer, and the steel produced is of good quality. In the cast iron industry, it is used as inoculant and nodularizing agent, which can effectively prevent iron from forming carbide.Can be customized in accordance with customer requirements (provide a variety of content, particle size, packaging).

Available Size:

· Lump：10-100mm

· Granular：0-1mm,1-3mm,3-10mm,10-50mm

· Powder：0-0.2mm, 0-1mm Custom particle sizes supported.

Packing & Delivery

· 1000kg jumbo big bag; 25kg small woven bag

· Load in 20GP / 40GP container

· Supply capacity: large bulk quantity for long-term order

· Documents: Commercial Invoice, Packing List, Certificate of Analysis

Frequently Asked Questions

Q: What grade should I choose for steelmaking deoxidation? 

A: FeSi75-A is the preferred option for general steel deoxidation. FeSi75-B is cost-effective for ordinary casting.

Q: Can you provide custom particle size? 

A: Yes, we can produce lump, grain or powder according to your technical drawing or requirement.

Q: Do you supply sample for lab test? 

A: Small testing samples are available, customers bear freight cost.

 Contact Us

For price, MOQ, technical datasheet or bulk order quotation, please send us inquiry. Our metallurgical team will reply within 24 working hours.