Description

Calcium Silicon is a ferroalloy composed primarily of calcium and silicon, widely used as a powerful deoxidizer and desulfurizer in steelmaking. Its high reactivity allows for precise control over the chemical composition and cleanliness of molten steel, directly impacting the final product's mechanical properties and performance. This compound is essential for manufacturers in the metallurgical industry seeking to produce high-grade, low-sulfur steels, special alloys, and cast iron with improved machinability and strength.

Application

• Steel Deoxidation & Desulfurization: A highly effective agent for removing oxygen and sulfur from molten steel, improving its purity and mechanical properties.
• Inoculation of Cast Iron: Used to modify the graphite structure in cast iron, enhancing its strength, ductility, and machinability.
• Production of Special Alloys: Acts as a calcium source in the manufacturing of complex alloys, including certain aluminum and magnesium alloys.
• Wire Production: Employed in the production of calcium-treated steel wires for improved drawability and performance.
• Refining of Non-Ferrous Metals: Utilized in processes to refine certain non-ferrous metals by removing impurities.
• Welding Electrode Coatings: Incorporated into coatings for specific welding electrodes to stabilize the arc and improve weld metal quality.

Basic Information

Item	Detail
Product Name	Calcium Silicon
CAS No.	12638-76-5
Molecular Formula	CaSi (commonly represented; actual composition varies by grade)
Molecular Weight	Contact for details
Synonyms	Calcium Silicide; Silicon Calcium; Calcium Silicon Alloy; Ferro Calcium Silicon; CaSi Alloy; Silicocalcium; Calcium Disilicide (CaSi2)
EINECS	235-077-1

Quality Control

Our Calcium Silicon is produced under stringent process controls to ensure batch-to-batch consistency and compliance with international metallurgical standards. Quality is verified through comprehensive analysis of key parameters including calcium and silicon content, particle size distribution, and impurity levels. A Certificate of Analysis (COA) detailing these specifications is provided with every shipment to guarantee product integrity and support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) and easily oxidized nature, this material must be stored in a cool, dry, and well-ventilated area under an inert atmosphere or in sealed, moisture-proof containers. Minimize exposure to air and moisture to prevent degradation and maintain product efficacy.

Specification

Item	Specification
Appearance	Gray metallic lumps or powder
Calcium (Ca) Content	28% - 35%
Silicon (Si) Content	55% - 65%
Iron (Fe)	≤ 5%
Aluminum (Al)	≤ 2.5%
Carbon (C)	≤ 1.0%
Phosphorus (P)	≤ 0.04%
Sulfur (S)	≤ 0.06%
Particle Size	Customizable (e.g., 0-10mm, 10-50mm, powder)

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