Ferro silicon calcium cored wire is a composite metallurgical material made by crushing deoxidizers, modifiers and alloy additives into specified size, then wrapped with cold-rolled low-carbon steel strip. It is widely used in converter & electric furnace steelmaking, secondary refining and continuous casting to purify molten steel, modify inclusions, improve castability and mechanical properties, significantly increase alloy yield and reduce steelmaking costs.

Core advantages

Purify inclusion morphology, reduce large-size inclusions

Improve molten steel fluidity & castability, reduce casting defects

Alloy yield increased by 15–30%, reduce alloy consumption

Shorten refining time, stabilize component control

Low dust, easy operation, suitable for automatic wire feeding

alloy cored wire-1webp alloy cored wire-2webp

Chemical composition

Brand	Ca ≥	Si	C ≤	Al ≤	P ≤	S ≤
Ca31Si60	31%	55–65%	0.8%	2.4%	0.04%	0.06%
Ca28Si60	28%	55–65%	0.8%	2.4%	0.04%	0.06%
Ca24Si60	24%	55–65%	0.8%	2.5%	0.04%	0.04%

Physical Dimension

Wire Diameter	Steel Strip Thickness	Powder Content	Powder/Steel Ratio	Length
13–13.5 mm	0.2 mm	225±10 g/m	60/40	5000–5500 m

Packaging: Steel straps + waterproof plastic film + iron cage quantity (can be packaged according to customer requirements)

Cable packaging: There are two types of cable arranging: horizontal and vertical, and two packaging methods: internal tap type and external type.

Products Uses

Carbon steel, alloy steel, and special steel smelting:

It is widely used in converter, electric furnace, and induction furnace steelmaking processes. By adding it through wire feeding, it effectively removes oxygen and harmful impurities (such as sulfur, phosphorus) in molten steel, reduces the formation of oxide inclusions, and improves the purity of steel. For alloy steel and special steel (such as high-strength steel, wear-resistant steel, and stainless steel), it can stabilize the chemical composition of the steel, ensure the uniformity of alloy elements, and enhance the mechanical properties of the finished steel, such as tensile strength, toughness, and corrosion resistance.

Continuous casting and secondary refining:

In the continuous casting process, the use of ferro silicon calcium cored wire can improve the fluidity of molten steel, prevent nozzle clogging caused by inclusions, ensure the smooth progress of continuous casting, and reduce casting defects such as cracks, inclusions, and shrinkage holes in cast billets. In secondary refining (such as LF furnace, VD furnace refining), it can further modify the shape and nature of inclusions, convert large, brittle inclusions into small, spherical, and harmless inclusions, thereby improving the castability and processing performance of molten steel.

Nodular cast iron and ductile iron production:

In the production of nodular cast iron and ductile iron, ferro silicon calcium cored wire acts as a nodulizer and inoculant auxiliary. It can promote the formation of graphite nodules, improve the nodulization rate and uniformity, reduce the generation of white mouth and shrinkage defects, and enhance the toughness, strength, and wear resistance of cast iron parts. It is widely used in the production of auto parts, engineering machinery parts, and pipe fittings that require high performance.

Deoxidation, desulfurization, and inclusion modification in special smelting:

In addition to conventional steelmaking and casting, it is also used in special smelting scenarios such as precision casting and alloy casting. It can accurately control the deoxidation and desulfurization effect, adjust the composition of molten steel according to the requirements of finished products, and ensure the precision and quality of cast parts. At the same time, it can also be used in the smelting of cast steel parts for aerospace, marine, and other high-end fields, where strict requirements for material purity and performance are required.

cored wire picture-1

FAQ

Q: What is the main function of ferro silicon calcium cored wire?
A: Mainly for deoxidation, desulfurization, inclusion modification in steelmaking.

Q: How to improve alloy yield?
A: Deep feeding reduces oxidation, so element utilization is higher.

Q: Can you customize specifications?
A: Yes, we support custom composition, diameter and length.

Q: What is the delivery time?
A: Normally 7–15 days after order confirmation.

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