What is the price of Alloy Cored Wire per kg?cored wire price per ton today usd
| Export price of cored wire from China on June 2 | |||||
| product | index | price | rise and fall | port | Remark |
| Calcium silicate cored wire | ca30si60∮13mm | 1370-1410 | -- | Tianjin Port | FOB, USD/ton |
| Calcium silicate cored wire | ca28si55∮13mm | 1220-1260 | -- | Tianjin Port | FOB, USD/ton |
| Pure calcium cored wire | ca98%min∮9mm (Ca58-68g) | 1470-1550 | -- | Tianjin Port | FOB, USD/ton |
What are the Main Applications of Cored Wire?
High-Efficiency Alloy Addition System for Modern Steelmaking
Cored Wire for Metallurgy | CaSi / CaFe / Mg / FeTi / FeSi Core Wire | 9–16mm Custom Diameter
✔ Wire Diameter: 9–16 mm (customizable)
✔ Core Filling Ratio: 10%–55% active alloy powder
✔ Sheath Material: Low-carbon steel strip
✔ Feeding Speed: 1.0–3.0 m/s (adjustable injection system)
✔ Application: Steel refining, ductile iron, inclusion control
✔ Recovery Efficiency: Up to 90–98% alloy utilization
Cored wire is a composite metallurgical material designed for precise and efficient injection of alloying elements into molten steel or iron using automated wire feeding systems.
What Is Cored Wire Used for in Steelmaking and Metallurgy?
Cored wire is primarily used to introduce reactive or volatile elements into molten metal with high efficiency and controlled reaction behavior. Instead of direct addition of powders or ferroalloys, the wire ensures deeper penetration, reduced oxidation loss, and improved yield.
In modern steel plants, cored wire injection is a key part of secondary metallurgy (ladle refining process) where composition, cleanliness, and mechanical properties are precisely controlled.
What Are the Typical Specifications of Cored Wire?
| Parameter | Specification |
|---|---|
| Wire Diameter | 9–16 mm |
| Sheath Thickness | 0.3–0.6 mm low carbon steel |
| Core Material Types | CaSi, CaFe, CaAl, Mg, FeTi, FeB |
| Filling Ratio | 10%–55% |
| Tensile Strength | ≥ 350 MPa |
| Coil Weight | 500–2000 kg |
| Feeding Speed | 1.0–3.0 m/s |
| Packaging | Steel frame coils / waterproof wrapping |
Why Is Cored Wire Important in Modern Metallurgy?
Cored wire technology solves one of the biggest problems in traditional metallurgy: low recovery rate and unstable alloy distribution.
Key advantages include:
Deep and controlled injection into molten steel
Reduced oxidation loss of reactive elements
Stable and repeatable composition control
Automation-friendly feeding system
This makes it essential for high-grade steel production and precision alloying.
What Are the Main Applications of Cored Wire?
Steel Refining (Secondary Metallurgy)
Cored wire is widely used in ladle refining to adjust final composition after primary steelmaking.
Inclusion Modification and Cleanliness Control
Calcium-based wires modify non-metallic inclusions, improving steel toughness and fatigue resistance.
Ductile Iron Production
Magnesium cored wire is used to spheroidize graphite in cast iron, producing ductile iron with superior mechanical properties.
Alloy Element Micro-Addition
Elements like Ti, B, and Ca are precisely added in micro amounts to control grain structure.
Continuous Casting Optimization
Improves casting stability and reduces nozzle clogging.
How Is Cored Wire Used in Secondary Steel Refining?
In secondary metallurgy, cored wire is fed directly into molten steel using an automated wire feeder. The sheath melts quickly, releasing the core material deep inside the ladle.
This deep injection avoids surface oxidation and ensures:
Higher alloy utilization
Faster reaction control
More uniform steel composition
Why Is Cored Wire Better Than Traditional Alloy Addition?
Compared to ferroalloy dumping or powder injection, cored wire provides:
Higher recovery rate (up to 98%)
Lower material loss due to oxidation
Better process control
Reduced slag contamination
Safer and cleaner operation
It is now the preferred method in advanced steel plants globally.
How Does Calcium Cored Wire Improve Steel Cleanliness?
Calcium reacts with sulfur and oxygen in molten steel to form liquid inclusions that float into slag.
Result:
Reduced solid inclusions
Improved machinability
Enhanced fatigue resistance
Better surface quality
What Role Does Magnesium Cored Wire Play in Ductile Iron?
Magnesium is used to transform graphite morphology from flake to spheroidal shape.
Effect:
Higher ductility
Improved tensile strength
Better impact resistance
How Does Cored Wire Improve Alloy Efficiency?
Cored wire improves efficiency by:
Protecting reactive elements from oxidation
Delivering material directly into molten bath
Ensuring controlled dissolution kinetics
This significantly increases alloy yield and reduces cost per ton of steel.
What Industries Use Cored Wire Besides Steelmaking?
Automotive manufacturing
Heavy machinery production
Railway steel systems
Wind power structural steel
Pipe and pipeline steel industry
Foundry and cast iron production
Summary: Why Cored Wire Is Essential in Modern Metallurgy
Cored wire is a precision alloy delivery technology that replaces traditional addition methods with a more controlled, efficient, and automated system. It is now a core tool in modern steel refining, especially for high-performance and low-impurity steel grades.
FAQ
What is cored wire used for in steelmaking?
It is used for precise alloy addition in molten steel.
It ensures controlled composition with minimal material loss during refining.
What types of cored wire exist?
Common types include CaSi, CaFe, Mg, and FeTi wires.
Each type is designed for a specific metallurgical function.
Why is cored wire better than direct alloy addition?
It provides higher recovery and lower oxidation loss.
The sheath protects reactive elements until deep injection.
How does calcium cored wire work?
It modifies inclusions and improves steel cleanliness.
Calcium reacts with impurities to form removable compounds.
What is magnesium cored wire used for?
It is mainly used in ductile iron production.
It transforms graphite into spherical form for better strength.
What industries use cored wire technology?
It is widely used in steel, casting, and heavy manufacturing.
Any industry requiring high-quality metal composition control uses it.
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