Calcium Silicon Alloy (CaSi) Manufacturer & Supplier
Calcium Silicon Alloy (CaSi Alloy) is a high-performance ferroalloy widely used as a deoxidizer, desulfurizer, and inclusion modifier in steelmaking. With excellent metallurgical performance, Calcium Silicon effectively reduces oxygen and sulfur content, improves steel cleanliness, and enhances the mechanical properties of finished steel products.
As a professional Calcium Silicon Alloy supplier, we provide stable quality, customized particle sizes, competitive pricing, and reliable global delivery for steel mills, foundries, and alloy distributors.
What Is Calcium Silicon Alloy?
Calcium Silicon Alloy is produced by smelting high-purity silicon, calcium, and other carefully selected raw materials in an electric furnace. The alloy contains active calcium that reacts rapidly with oxygen and sulfur in molten steel, while silicon improves deoxidation efficiency and alloy recovery.
Because of its excellent refining capability, Calcium Silicon is widely used in:
- Carbon Steel
- Alloy Steel
- Stainless Steel
- Bearing Steel
- Spring Steel
- Tool Steel
- Rail Steel
- Wire Rod
- Continuous Casting
- Secondary Metallurgy
Main Advantages of Calcium Silicon Alloy
Our Calcium Silicon Alloy offers numerous benefits for steelmaking:
✔ High Deoxidation Efficiency
Rapidly removes dissolved oxygen from molten steel.
✔ Excellent Desulfurization Performance
Reduces sulfur content and improves steel purity.
✔ Inclusion Modification
Transforms harmful inclusions into easily removable compounds.
✔ Improved Steel Cleanliness
Enhances mechanical properties and product consistency.
✔ Stable Chemical Composition
Strict production control ensures consistent batch quality.
✔ High Alloy Recovery Rate
Maximizes utilization and reduces production cost.
✔ Low Impurity Content
Low phosphorus and sulfur levels help produce high-quality steel.
✔ Excellent Flowability
Uniform particle size improves feeding performance.
Typical Chemical Composition
| Grade | Ca (%) | Si (%) | C (%) Max | Al (%) Max | P (%) Max | S (%) Max |
|---|---|---|---|---|---|---|
| CaSi 30 | 30–32 | 55–60 | 1.0 | 2.0 | 0.04 | 0.03 |
| CaSi 28 | 28–30 | 58–62 | 1.0 | 2.0 | 0.04 | 0.03 |
| Customized | On Request | On Request | Available | Available | Available | Available |
Customized specifications are available according to customer requirements.
Available Particle Sizes of Calcium Silicon
We supply multiple sizes, including:
- 0–3 mm
- 1–3 mm
- 3–10 mm
- 10–50 mm
- 10–100 mm
- Customized sizes
Uniform sizing ensures excellent melting behavior and alloy recovery.
Applications of Calcium Silicon
Steelmaking
Used as a high-efficiency deoxidizer and desulfurizer during secondary refining.
Clean Steel Production
Improves steel cleanliness by modifying oxide inclusions.
Continuous Casting
Enhances casting stability and reduces nozzle clogging.
High-Strength Steel
Improves toughness, ductility, and fatigue resistance.
Foundry Industry
Used in special casting processes requiring low sulfur and clean molten metal.
Production Process of Calcium Silicon
Our manufacturing process includes:
- Raw Material Inspection
- Accurate Batching
- Electric Furnace Smelting
- Controlled Cooling
- Crushing
- Screening
- Laboratory Analysis
- Packaging
- Final Inspection
Every production stage follows strict quality control procedures.
Quality Control of Calcium Silicon
Every batch undergoes laboratory testing for:
- Calcium (Ca)
- Silicon (Si)
- Carbon (C)
- Aluminum (Al)
- Phosphorus (P)
- Sulfur (S)
- Particle Size Distribution
- Moisture Content
- Packaging Inspection
Only qualified products are shipped.
Packaging of Calcium Silicon
Standard export packaging includes:
- 25 kg woven bags
- 1 MT Jumbo Bags
- Palletized packaging
- Moisture-resistant export bags
- Customized packaging
All packaging is suitable for international transportation.
Storage Recommendations of Calcium Silicon
To maintain product quality:
- Store indoors.
- Keep dry.
- Avoid moisture.
- Prevent package damage.
- Follow FIFO inventory management.
Proper storage preserves alloy activity and packaging integrity.
Why Choose ZhenAn?
✔ Professional Calcium Silicon Alloy Manufacturer
✔ Stable Chemical Composition
✔ Strict Quality Control
✔ Customized Specifications
✔ Competitive Factory Price
✔ Fast Global Delivery
✔ OEM & Private Label Available
✔ Technical Support
✔ Export Experience to Europe, North America, South America, Southeast Asia, and the Middle East
Frequently Asked Questions
What is Calcium Silicon Alloy used for?
It is mainly used for deoxidation, desulfurization, and inclusion modification in steelmaking.
Can you customize the chemical composition?
Yes. Customized grades can be produced according to customer specifications.
What particle sizes are available?
We offer standard and customized particle sizes from powder to large lumps.
How is quality ensured?
Every production batch is tested by our laboratory before shipment.
What is your standard packaging?
25 kg bags, 1 MT Jumbo Bags, palletized export packaging, or customized solutions.
Request a Quote
Looking for a reliable Calcium Silicon Alloy supplier?
Contact our sales team today for:
- Latest Price
- Technical Data Sheet (TDS)
- Certificate of Analysis (COA)
- Free Sample Availability
- Bulk Order Solutions
- Global Shipping Support
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