Silicon Calcium Alloy For Steelmaking

 

Calcium Silicon (CaSi), also known as Silicon Calcium Alloy, is a specialized ferroalloy widely used in steelmaking and metallurgy. It is mainly applied as a deoxidizer, desulfurizer, and inclusion modifier during refining and ladle treatment. By improving molten steel cleanliness and stabilizing casting performance, CaSi helps steel producers achieve more consistent product quality.

 

Main Functions in Metallurgy

• Deoxidation: reduces oxygen content and supports cleaner steel production
• Desulfurization: assists in sulfur reduction and improves steel purity
• Inclusion modification: transforms non-metallic inclusions to improve morphology, which can help reduce nozzle clogging and enhance castability
• Process stability: supports smoother continuous casting and more stable steel properties

 

Typical Applications

• Ladle metallurgy / refining processes (LF, VD/VOD)
• Production of high-quality steels requiring cleaner composition control
• Continuous casting operations where improved inclusion control is needed
• Certain foundry and metallurgical treatments where calcium addition is required

 

Product Forms & Packaging

Forms: lump / granule / powder (available upon request)

Packing: 25kg bags, 1MT jumbo bags, or customized export packing

Other: palletizing and moisture-proof packing can be provided for sea freight

 

Grade	Chemical Compositions(%)
	Si	Ca	S	P	C	AI
	≥(Min)		≤(Max)
Si60Ca28	60	28	0.03	0.03	1.0	2.0
Si60Ca30	60	30
Si58Ca30	58	30
Si55Ca28	55	28
Si55Ca30	55	30
Si50Ca30	50	30
Si50Ca30	50	28
Si40Ca15	40	15

 

 

 

We are a professional supplier of metallurgical materials, focusing on stable composition control and consistent shipment quality. With strict inspection and export experience, we support global customers with reliable supply, clear documentation, and efficient logistics coordination.

 

Why Choose Us

Consistent quality with batch inspection

Flexible size and packaging options

Export-ready documentation support (COA, inspection report, etc.)

Fast response and long-term supply cooperation

 

 

Product & Quality

Q1: What is Silicon Calcium mainly used for?
A: Silicon Calcium is mainly used in steelmaking as a deoxidizer, desulfurizer, and inclusion modifier to improve steel cleanliness and casting stability.

Q2: What is the typical chemical composition of your CaSi?
A: The calcium and silicon content can be supplied according to customer requirements. Typical grades are available, and exact composition will be confirmed in the COA.

Q3: Is the quality stable between different batches?
A: Yes. We apply batch control and inspection to ensure consistent composition and performance for each shipment.

Q4: Do you test the product before delivery?
A: Yes. Each batch is inspected, and a Certificate of Analysis (COA) can be provided before shipment.

 

Size & Customization

Q5: What forms of Silicon Calcium can you supply?
A: We can supply Silicon Calcium in lump, granule, or powder form, depending on your feeding and application requirements.

Q6: Can the size range be customized?
A: Yes. Size ranges can be adjusted to match different furnace types and feeding systems.

 

Packaging & Transportation

Q7: How is Silicon Calcium packed for export?
A: Standard packing includes 25kg bags or 1MT jumbo bags. Palletizing and moisture-proof packing are available for sea transportation.

Q8: Is the packaging suitable for long-distance shipping?
A: Yes. Export packing is designed to minimize moisture exposure and product damage during long-distance transport.

Q9: What shipping methods do you support?
A: We mainly support sea freight. Other transportation methods can be arranged based on destination and order quantity.

 

Documents & Compliance

Q10: What documents can you provide with the shipment?
A: We can provide COA, packing list, commercial invoice, and other export documents as required.

Q11: Can you meet international steelmaking standards?
A: Our Silicon Calcium is produced under strict quality control and meets common industrial requirements for metallurgical applications.

 

Ordering & Cooperation

Q12: What is your minimum order quantity (MOQ)?
A: MOQ depends on product form, size, and packaging. Please contact us with your requirements for confirmation.

Q13: Can you support long-term or regular supply?
A: Yes. We focus on long-term cooperation and can arrange stable supply plans for regular orders.

Q14: How long is the typical delivery time?
A: Delivery time depends on order quantity and specifications. We will confirm the schedule once order details are finalized.

Q15: What information is needed for a quotation?
A: Please provide required Ca/Si content, size range, quantity, packaging, and destination port for a quick and accurate quotation.

 

 

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