High-Purity Ferrosilicon Barium Master Alloy

Product Specifications

Technical details and manufacturing context for High-Purity Ferrosilicon Barium Master Alloy

Definition

High-purity ferrosilicon barium master alloy is a critical intermediate material used in ferrous metallurgy. It serves as a powerful deoxidizer and desulfurizer during steelmaking, improving the cleanliness and mechanical properties of the final steel. In ductile iron production, it acts as a potent nodularizing agent, promoting the formation of spheroidal graphite for enhanced ductility and strength. Its controlled composition ensures predictable and efficient performance in high-temperature metal processing. The alloy is typically supplied in granular or lump form for ladle addition, with particle size distribution ranging from 2 to 25 mm. Key parameters include barium content of 15–25 wt%, silicon content of 40–50 wt%, and iron content of 20–35 wt%, with a maximum combined aluminum and calcium impurity level of ≤1.5 wt%. The melting point is approximately 1200–1300 °C, and density ranges from 3.5 to 4.5 g/cm³, with bulk density between 1.5 and 2.5 g/cm³. Moisture content is limited to ≤0.5% to prevent hydrogen pickup. Packaging options include steel drums, woven bags, or bulk bags, with weights from 25 to 1000 kg. These values are reference ranges per GB/T 2272 and GB/T 1480; actual specifications must be confirmed with the supplier. The alloy's performance depends on proper handling, storage, and addition practices to ensure consistent metallurgical results.

Working Principle

The alloy's active elements (silicon and barium) react with oxygen and sulfur in molten metal, forming stable oxides and sulfides that are removed into the slag. Barium also modifies the surface tension of molten iron to facilitate graphite spheroidization. The silicon provides strong deoxidation, while barium enhances the nodularizing effect and improves the alloy's dissolution kinetics. The controlled composition ensures predictable reactions, and the particle size distribution affects feeding and dissolution rates. Proper addition practices, such as timing and placement in the ladle, are critical to achieve uniform distribution and avoid segregation. The alloy's effectiveness is influenced by melt temperature, slag conditions, and the presence of other impurities. Regular monitoring of the alloy's composition and moisture content is necessary to maintain consistent performance. Failure to control these factors can lead to incomplete reactions, poor nodularity, or increased inclusion levels in the final product.

Common Materials

Silicon, Barium, Iron

Technical Parameters

Parameter	Typical range	Notes & selection driver
Barium ContentRequired	15–25 wt%	Mass percentage of barium, typically 1-10%GB/T 2272
Silicon ContentRequired	40–50 wt%	Mass percentage of silicon, typically 45-75%GB/T 2272
Iron ContentRequired	20–35 wt%	Balance composition, typically 20-50%GB/T 2272
Impurity Level (Al+Ca)Required	≤1.5 wt%	Maximum combined aluminum and calcium contentGB/T 2272
Particle Size DistributionRequired	2–25 mm	Size range for ladle addition (e.g., 10-50mm)GB/T 1480
Melting Point	1200–1300 °C	Approximate temperature range for dissolution
Density	3.5–4.5 g/cm³	Affects packing and feeding in ladle.
Bulk Density	1.5–2.5 g/cm³	Important for packaging and transport.
Moisture Content	≤0.5 %	Excess moisture can cause hydrogen pickup.GB/T 2009
Packaging	25–1000 kg	Options: steel drums, woven bags, or bulk bags.GB/T 2272

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Silicon Matrix Part
Primary carrier and deoxidizing base

Material: Metallurgical-grade silicon
Barium Compound Part
Active nodularizing and desulfurizing agent

Material: Barium silicide/intermetallic phase
Iron Binder Part
Provides structural integrity and density

Material: Pure iron

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for High-Purity Ferrosilicon Barium Master Alloy.

Manufacturers of High-Purity Ferrosilicon Barium Master Alloy

2 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Anyang Jinfang Metallurgy Co.,Ltd.

Henan, CN

Also makes: High-Purity Ferrosilicon Alloy, High-Purity Electrolytic Manganese Flake

Listed on the company's own website · profile compiled by CNFX from public sources

Listed there as: “Ferro Silicon Barium”
View source page ↗ ayjf-metal.com · checked 2026-09-04

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HSferralloy

Henan, CN

Also makes: Manhole Cover, High-Purity Ferrosilicon Alloy

Listed on the company's own website · profile compiled by CNFX from public sources

Listed there as: “Ferro Silicon Barium”
View source page ↗ hsferroalloy.com · checked 2026-09-04

View profile Send enquiry

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 16 September 2026

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

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Manufacturing capability

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Frequently Asked Questions

What is the typical particle size for this alloy?

The particle size distribution is typically 2–25 mm, as specified in GB/T 1480. However, the exact range should be confirmed with the supplier for your specific application.

What are the main impurity limits?

The maximum combined aluminum and calcium content is ≤1.5 wt%, and moisture content is ≤0.5%. These limits help ensure consistent performance and minimize hydrogen pickup.

How is the alloy packaged?

Packaging options include steel drums, woven bags, or bulk bags, with weights ranging from 25 to 1000 kg. The choice depends on handling and transport requirements.

What standards apply to this product?

The composition and testing methods are referenced in GB/T 2272, and particle size distribution is referenced in GB/T 1480. Always verify compliance with the supplier.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Atmospheric to 1.5 bar (standard ladle treatment conditions)
other spec:	Slurry concentration: 5-15% in carrier gas (for injection), Particle size: 1-10 mm (for addition methods)
temperature:	1400-1600°C (typical steelmaking range)