Calcium-Silicon Ca28Si58 is another important CaSi grade used in steelmaking and foundry applications, particularly in processes that require fine-tuned deoxidation and desulfurization while controlling total alloy cost. It offers slightly different calcium and silicon ratios compared with Ca30Si60, giving steelmakers more flexibility in their refining strategies.
The latest export indications from Tianjin Port, China show that Calcium-Silicon Ca28Si58 (lump) prices remain stable, with no change recorded in the prevailing quotation range.
Price Snapshot
- Product: Calcium-Silicon (lump)
- Grade: Ca28Si58
- Price range: USD 1,330–1,350/ton
- Change: -- (stable)
- Basis: FOB Tianjin Port
Mainstream export offers for Calcium-Silicon Ca28Si58 are currently assessed at USD 1,330–1,350/ton FOB Tianjin Port. Prices are unchanged from the previous assessment, and market participants confirm that normal trade volumes are concluded within or close to this range, subject to order size, packing and shipment period.
Market Brief
The Ca28Si58 export market is currently steady and demand-driven:
- Supply side:
Producers of Ca28Si58 maintain stable output. The cost of raw materials – including calcium, silicon, steel scrap for packing, and energy – supports current price levels. Suppliers are focusing on stable production and on-time shipment rather than entering into aggressive price competition.
- Demand side:
Steel mills and foundries use Ca28Si58 in ladle metallurgy, tapping deoxidation and desulfurization. Demand is linked to overall steel production, and buyers are mainly arranging planned purchases based on production schedules. There is no noticeable sign of panic buying or demand collapse.
- Price sentiment:
With both supply and demand in approximate balance, the market tone is neutral, and most participants expect prices to fluctuate only slightly inside the current USD 1,330–1,350/ton range in the short term.
Role and Advantages of Ca28Si58
Compared with other CaSi grades, Ca28Si58 offers:
- A slightly lower calcium content than Ca30Si60, which may suit certain steel grades and cost structures.
- Sufficient silicon content for effective deoxidation, combined with calcium for desulfurization and inclusion modification.
- Flexibility in refining strategies where mills adjust Ca and Si inputs based on steel grade, ladle practice and cost targets.
For many users, Ca28Si58 is a practical and economical choice, especially when they want to balance alloy performance with total refining cost.
Short-Term Outlook
In the near term, the price of Calcium-Silicon Ca28Si58 is expected to remain stable:
- Current price levels are supported by raw material and energy costs.
- Steel demand is sufficient to sustain regular CaSi consumption.
- No major supply shocks are visible in the short run.
Any noticeable price movement would likely be driven by changes in steel production, raw material markets or energy policies, rather than short-lived fluctuations in spot demand.
FAQ – Calcium-Silicon Ca28Si58 Export Prices
Q1: What is the current export price for Calcium-Silicon Ca28Si58?
A: The latest assessment shows a price range of USD 1,330–1,350/ton FOB Tianjin Port, with quotations reported as stable.
Q2: How does Ca28Si58 compare to Ca30Si60 in use?
A: Both are used as deoxidizers and desulfurizers, but Ca28Si58 has slightly lower calcium and a different Si–Ca ratio. Steel plants may select one grade or use both depending on steel grade, refining practice and cost planning.
Q3: Are Ca28Si58 offers negotiable?
A: Yes. Sellers usually consider order volume, shipment period, packing, and long-term cooperation potential when negotiating price within or near the quoted band.
Q4: What size and packing are common for Ca28Si58 lump?
A: Common sizes include 10–50mm, 10–60mm or customized ranges, packed in 1 MT jumbo bags, often on pallets if required. Specific size and packing can be adjusted according to buyer needs.
Q5: Can Ca28Si58 be purchased together with other alloys?
A: Yes. Many customers combine orders for Calcium-Silicon, pure calcium cored wire, ferrosilicon and silicon metal in one shipment to reduce average freight cost and simplify procurement.
About Our Company
We are a professional manufacturer and exporter of Calcium-Silicon, cored wire and other metallurgical alloys, operating our own factory with a land area of about 30,000 square meters. With advanced production and quality control systems, we can provide a stable monthly supply of Ca28Si58, Ca30Si60 and related products to customers around the world.
Our products are exported to more than 100 countries and regions, and we have established cooperation with over 5,000 customers globally. Our sales team closely tracks industry dynamics and international market trends, helping buyers select appropriate grades, optimize alloy usage and control overall refining costs.
In addition to Calcium-Silicon, we also supply ferrosilicon, silicon metal, pure calcium cored wire and other metallurgical products, offering one-stop raw material solutions for steel mills, foundries and alloy plants. If you are planning to purchase Ca28Si58, please send us your detailed requirements, and we will provide a firm quotation and tailored supply plan from our factory.

