High Carbon Ferro Silicon Granules

Precision Alloy for Automated Dosing in EAF, BOF & Ladle Furnace Steelmaking

High Carbon Ferro Silicon Granules are a silicon–iron–carbon alloy designed for controlled addition in modern steelmaking systems where automation and dosing accuracy are critical. The granular form is widely used in Electric Arc Furnaces (EAF), Basic Oxygen Furnaces (BOF), and Ladle Furnaces (LF), especially in plants operating continuous or semi-continuous refining cycles.

Compared with traditional lump materials, granules provide more stable feeding behavior in automated weighing and gravity-dosing systems. In actual steel plant operations, this often translates into more consistent silicon recovery and fewer fluctuations during late-stage chemistry adjustment.

The granule form is designed for steel plants using automatic or semi-automatic dosing systems.

• Standard sizes: 1–3 mm / 1–5 mm / 3–8 mm / 1–10 mm

• Custom narrow-range sizing available based on feeding system design.

• Appearance: Metallic grey irregular granules with crystalline fracture structure.

• Flowability: Suitable for gravity feeding, hopper systems, and weighing bins.

• Fines control: Under-size fraction (<1 mm) maintained at ≤3% through air classification.

In practice, consistent particle size helps reduce bridging and uneven discharge in silo systems, which is one of the common operational issues reported by melt shop engineers.

The selection of granules is usually driven by feeding stability and process control rather than chemical differences alone.

More stable performance in automated dosing systems
Granules flow more evenly through hoppers and weighing systems, reducing interruption during continuous steel production.

More predictable dissolution in molten steel
Smaller and uniform particles increase contact with molten steel, improving reaction consistency during deoxidation and trimming.

Reduced floating and oxidation loss
Proper bulk density allows granules to penetrate the metal-slag interface more effectively compared with lighter or irregular lump materials.

Improved control in Ladle Furnace refining
Granules allow smaller, more accurate additions, which helps reduce over-alloying in final chemistry adjustment stages.

The material is produced through a submerged arc furnace route:
• Quartz and carbon materials are reduced under controlled high temperature
• Silicon is formed and absorbed into molten iron phase
• Alloy is cast and cooled under controlled conditions
• Material is crushed and screened into defined granule sizes
• Each heat is tested before release for shipment
This process ensures stable chemical distribution and consistent physical behavior, which is important for repeatable furnace performance in industrial contracts.

From actual steel plant usage, High Carbon Ferro Silicon Granules are mainly used for:

The main value is not only chemical input, but the reduction of variation during repeated furnace cycles, especially in automated dosing environments.

We implement full batch traceability suitable for long-term industrial supply:

This system is designed for steel producers requiring stable multi-batch supply rather than one-time procurement.

Standard export packaging includes:

Packaging is optimized to reduce moisture absorption and minimize fines generation during long-distance ocean transport.

Hot Tags: high carbon ferro silicon granules, China high carbon ferro silicon granules manufacturers, suppliers, factory, ferro silicon chemical composition, Low Aluminum Ferro Silicon Powder, Low Carbon Ferro Silicon for Foundry, Premium Low Carbon Ferro Silicon, sd eastern bhutan ferro silicon, silicon magnesium