Editorial Technical Reference

High-Purity Ferroaluminum Master Alloy

This page explains how High-Purity Ferroaluminum Master Alloy is classified within Other Basic Metal Production. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

Aluminum-iron alloy used as additive in steelmaking and non-ferrous metal production

View Full Specifications Explore Manufacturing Sources

High-Purity Ferroaluminum Master Alloy in a manufacturing environment — Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for High-Purity Ferroaluminum Master Alloy

Definition

High-purity ferroaluminum master alloy is a specialized metallurgical additive containing precise ratios of aluminum and iron. It serves as an efficient aluminum source for deoxidation and alloying in steel production, improving steel cleanliness and mechanical properties. In non-ferrous metallurgy, it functions as a grain refiner and strengthening agent for aluminum alloys. The controlled composition ensures predictable metallurgical reactions and consistent final product quality. This directory entry provides reference data for procurement and verification. The alloy is typically supplied in lump or granular form, with particle sizes ranging from 5 to 50 mm. Its composition is specified with aluminum and iron contents each between 45 and 55 wt%, with maximum impurities of 0.5 wt% silicon and 0.1 wt% carbon. The melting point is approximately 1150–1250 °C, and density ranges from 5.5 to 6.5 g/cm³. Bulk density for packaging is 2.5–3.5 g/cm³, and packaging weights vary from 25 to 1000 kg. Composition tolerance is ±1 wt%, and maximum moisture is 0.5%. These values are typical reference ranges and must be confirmed with the supplier for the specific product. Standards such as GB/T 3620.1, GB/T 1482, GB/T 1425, GB/T 6283, and GB/T 3650 are referenced for verification. Always verify model-specific values and standards with the legal manufacturer or supplier before use.

Working Principle

When added to molten metal, the alloy dissolves, releasing aluminum atoms. These atoms react with dissolved oxygen to form non-metallic inclusions that float out, thereby deoxidizing the melt. Simultaneously, aluminum can form intermetallic compounds with iron and other elements, modifying the microstructure. In steel, this refines grain size and improves mechanical properties. In aluminum alloys, it acts as a grain refiner, promoting a fine, uniform structure. The controlled composition ensures predictable reactions, leading to consistent final product quality.

Common Materials

Aluminum, Iron

Technical Parameters

Parameter	Typical range	Notes & selection driver
Aluminum ContentRequired	45–55 wt%	Primary alloying element concentrationGB/T 3620.1
Iron ContentRequired	45–55 wt%	Base metal concentrationGB/T 3620.1
Silicon MaximumRequired	0.5 wt%	Maximum silicon impurity levelGB/T 3620.1
Carbon MaximumRequired	0.1 wt%	Maximum carbon impurity levelGB/T 3620.1
Particle SizeRequired	5–50 mm	Typical lump or granular sizeGB/T 1482
Melting Point	1150–1250 °C	Approximate alloy melting temperatureGB/T 1425
Density	5.5–6.5 g/cm³	Affects packing and yield
Tolerance on Composition	±1 %	Ensures consistent alloyingGB/T 3620.1
Moisture Maximum	0.5 %	Prevents hydrogen pickup in meltGB/T 6283
Bulk Density	2.5–3.5 g/cm³	For packaging and transport
Packaging Weight	25–1000 kg	Drum or bag optionsGB/T 3650

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

Aluminum Matrix Part
Primary alloying element source

Material: High-purity aluminum
Iron Phase Part
Base metal component and carrier

Material: Low-carbon iron
Trace Elements Optional Part
Controlled impurities affecting properties

Material: Various metallic elements

Industry Taxonomies & Aliases

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

Manufacturers of High-Purity Ferroaluminum Master Alloy

Manufacturer profiles associated with High-Purity Ferroaluminum Master Alloy.

Sourcing High-Purity Ferroaluminum Master Alloy from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

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 6 September 2026

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Frequently Asked Questions

What is the typical aluminum content in this master alloy?

The aluminum content is typically 45–55 wt%, as per GB/T 3620.1. Always confirm the exact value for the specific product with the supplier.

What particle sizes are available?

The typical particle size range is 5–50 mm, but this can vary. Check with the supplier for available sizes and confirm the required specification.

What standards apply to this product?

Relevant standards include GB/T 3620.1 for composition, GB/T 1482 for particle size, GB/T 1425 for melting point, GB/T 6283 for moisture, and GB/T 3650 for packaging. These are references for verification, not certifications.

How should I verify the quality of the alloy?

Request a certificate of analysis from the supplier and verify that the composition, impurities, and other parameters meet your requirements. Also confirm that the product complies with the applicable standards.

Data Basis

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

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Buyer enquiry

Request manufacturing insight for High-Purity Ferroaluminum Master Alloy

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes: Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here: We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman: CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim: A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

pressure:	Atmospheric to 1.5 bar (standard ladle addition conditions)
other spec:	Slurry concentration: 0.5-5% by weight in molten metal, Flow rate: Batch addition (not continuous)
temperature:	Ambient to 1600°C (melting point dependent on alloy composition)