Description

Ferro-Silicon is a critical ferroalloy composed primarily of iron and silicon, widely recognized for its powerful deoxidizing and alloying properties in metallurgy. Its primary value lies in its ability to improve the strength, quality, and performance of steel and cast iron by removing oxygen and modifying the microstructure. This essential additive is a cornerstone material for foundries and steel mills globally, serving industries from automotive and construction to machinery manufacturing and beyond.

Application

• Steelmaking Deoxidizer: A primary agent for removing dissolved oxygen from molten steel, preventing porosity and enhancing the final product's integrity.
• Alloying Agent in Steel Production: Imparts silicon content to produce various grades of silicon steel, which exhibits improved magnetic properties and electrical resistance.
• Inoculant in Cast Iron: Promotes the formation of graphite in cast iron, improving machinability, tensile strength, and thermal conductivity.
• Magnesium Production: Used in the Pidgeon process to reduce magnesium from dolomite.
• Welding Electrode Manufacturing: Incorporated into flux coatings to stabilize the arc and improve weld metal quality.
• Dense Media Separation: Utilized in powdered form for sink-float separation processes in mining and recycling.
• Thermal Reduction Processes: Acts as a reducing agent in the production of other metals and ferroalloys.
• Hydrogen Generation: Reacts with sodium hydroxide solution to produce hydrogen gas on demand.

Basic Information

Product Name	Ferro-Silicon
CAS No.	12023-54-0
Molecular Formula	FeSi (variable composition)
Molecular Weight	N/A (Variable by grade)
Synonyms	Ferrosilicon; Iron Silicide; Silicon Iron Alloy; FeSi; Ferro Silicon; Ferro-Si; Silvery Pig Iron
EINECS	234-698-9

Quality Control

Our Ferro-Silicon is produced under strict process controls to ensure batch-to-batch consistency and meets standard industrial specifications such as ASTM A100 or relevant ISO standards. Each lot undergoes rigorous quality testing, including precise analysis of silicon and iron content, as well as critical impurity levels. Certificates of Analysis (COA) detailing the chemical composition and physical properties are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from moisture, strong acids, and strong oxidizers. Keep containers sealed when not in use to prevent oxidation and moisture absorption. The product is not classified as hazardous under normal conditions of use, but standard industrial hygiene practices should be observed.

Specification

Item	Specification
Appearance	Metallic Gray Lumps or Powder
Silicon (Si) Content	65% min - 75% min (Various Grades)
Iron (Fe)	Balance
Aluminum (Al)	1.5% max
Calcium (Ca)	1.0% max
Carbon (C)	0.1% max
Phosphorus (P)	0.04% max
Sulfur (S)	0.02% max
Size	0-10mm, 10-50mm, 50-100mm, or as required

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.