In Continuous Casting, every detail impacts output stability, billet quality, and overall plant efficiency. Among all components, the Copper Mould Tube plays the most critical role. It sits at the heart of the Continuous Casting Machine, where molten steel first begins to solidify. The quality of your mould tube directly affects your casting speed, shell formation, breakout rate, and the productivity of your entire plant.
At CYKC Group, we supply high-performance Copper Mould Tubes engineered to meet the demanding conditions of modern steelmaking and to help customers achieve consistent, safe, and efficient production.

How Copper Mould Tubes Influence Casting Quality
Inside the mould, molten steel must form a billet shell with uniform thickness and sufficient strength. A high-quality Copper Mould Tube ensures:
Fast and controlled heat extraction.
Uniform shell formation.
Stable billet strength when exiting the mould.
Reduced breakout, leakage, and surface defects.
Higher casting speed and productivity.
Poor-quality mould tubes cannot control heat transfer properly. As a result, steel may not form a strong shell in time, leading to dangerous events such as bursting or leaking, unexpected stoppages, and costly downtime.

Why the Mould Tube Is the Core of the Casting Machine
The continuous casting process places extreme demands on the mould:
Molten metal flows from the ladle to the tundish.
From the tundish, steel enters the open-base copper mould through a refractory shroud.
Inside the mould, the steel must begin solidification immediately.
The shell forms around the water-cooled copper wall while the core remains molten.
The billet is continuously withdrawn and further solidifies in the secondary cooling zone.
Because this process never stops, the mould must have:
Very high thermal conductivity to extract heat rapidly
High mechanical strength to resist steel pressure and friction
Excellent resistance to wear and deformation
Stable performance over long casting campaigns
This makes the quality of the mould tube the No.1 factor in maintaining casting stability and achieving long service life.
Our Product Range: Designed for Every Casting Need
We offer a full series of Copper Mould Tubes for billet casters, engineered to match different design standards and plant conditions.
Length Options
From 2.5 meters to 16 meters.
Section Sizes
From 80×80 mm to 400 mm.
Custom sections available
Shapes.
Square.
Rectangular.
Round.
Each mould tube is manufactured with optimized internal taper, uniform coating, and precise geometry to ensure stable casting, improved shell growth, and reduced friction.
Why Steel Mills Choose Our Copper Mould Tubes
✔ High Thermal Conductivity
Ensures fast and controlled heat removal for strong and even shell formation.
✔ Precision Manufacturing
Every mould meets strict dimensional tolerances to guarantee smooth billet withdrawal.
✔ Long Service Life
Premium copper materials and advanced coating technologies reduce wear and improve durability.
✔ Custom Engineering Support
We design mould tubes tailored to your caster specifications, steel grades, and production targets.
✔ Stable & Reliable Casting Performance
Helps reduce downtime, improve billet quality, and increase throughput.

Various Names Used by Different Mills
Our Copper Mould Tubes are also known in the industry as:
Copper Mold Tube.
Cu Pipe Mould.
Caster Tubular Mould.
Crystallizer Tube.
Cu Mold Tube.
Concast Copper Tube.
No matter the name, the function is the same: ensuring efficient and safe billet solidification in your caster.
Conclusion: Your Casting Performance Starts with a High-Quality Copper Mould Tube
If you want stable production, high-quality billets, and fewer casting incidents, the Copper Mould Tube must be one of the first components you upgrade. At CYKC Group, we are committed to supplying steel mills with mould tubes that improve casting efficiency, reduce maintenance costs, and support continuous operation.
Contact: cykc@cykcgroup.com.cn