In the continuous casting process, the copper mould tube plays a critical role in determining both production efficiency and final steel quality. As one of the most essential components in continuous casting machines (CCM), using high-quality copper mould tubes minimizes defects in billets, blooms, and slabs—ultimately boosting output and ensuring superior steel performance.
Before exploring how copper mould tubes help steel plants increase productivity, let’s first examine how the continuous casting process works.

Understanding the Continuous Casting Process
Continuous casting—also known as strand casting—revolutionized the steel industry. Prior to this method, molten steel was poured into individual ingot moulds, a slow and inefficient process.
In modern continuous casting:
- Molten steel flows from a ladle through a tundish and into the copper mould tube.
- Inside the copper mould tube, the molten steel begins cooling, forming a solid outer shell.
- While the outer shell solidifies, the inner molten core remains until the billet, bloom, or slab fully solidifies as it exits the mould.
The mould is considered the most crucial part of the continuous casting process, as it is the last point of contact before solidification. Its design and efficiency directly impact production output and casting quality.
Why Copper Mould Tubes Matter
The final shape and surface quality of the billet are determined by the mould, making its performance key for:
- Preventing surface defects.
- Maintaining stable billet formation.
- Ensuring safe and continuous production without bursting or steel leakage.
Copper mould tubes for CCM are water-cooled to absorb heat from molten steel while maintaining their integrity. This rapid heat extraction leads to faster solidification and improved process stability.
How Copper Mould Tubes Increase Steel Plant Productivity
Copper mould tubes enhance production efficiency in several ways:
- Rapid Heat Transfer
Copper’s excellent thermal conductivity allows quick heat removal from molten steel, reducing solidification time and accelerating overall casting speeds. - Improved Steel Quality
By forming a uniform and strong billet shell, copper mould tubes minimize defects, leading to higher-quality billets, blooms, and slabs. - Heat Resistance and Durability
Copper mould tubes are highly resistant to thermal erosion and deformation caused by heat stress, making them a reliable choice for continuous casting operations. - Minimized Downtime
High-quality mould tubes have longer service lives, reducing maintenance frequency and minimizing production interruptions.
Material Options
We provide copper mould tubes in various high-performance materials to meet different casting needs:
- TP2 (Deoxidized Phosphorous Copper)
Offers strong heat and fatigue resistance under high temperatures, widely used in steel plants. - CuAg 0.1 (Copper with 0.08%-0.12% Silver)
Enhances recrystallization temperature, heat resistance, and wear resistance for improved durability. - Cu-Cr-Zr (Copper-Chromium-Zirconium Alloy)
Combines exceptional mechanical strength and thermal conductivity at both room and high temperatures, making it ideal for demanding applications.
Coating Solutions
To extend mould tube lifespan, we offer various surface coatings, including:
- Hard chrome coating.
- Cr coating.
- Ni-Cr coating.
- Ni-Fe coating.
- NiCo-Cr coating.
These coatings improve wear resistance, particularly in sections where stress is highest.

Why Choose CYKC GROUP?
As a trusted copper mould tube manufacturer, CYKC GROUP delivers:
High-quality copper mould tubes tailored to your continuous casting system.
Cost-effective solutions that meet production and budget requirements.
Advanced coatings for enhanced durability.
Technical support to optimize your continuous casting process.
Contact Us
Boost your steel plant’s productivity with reliable copper mould tubes from CYKC GROUP.
Phone: +86 024 86876567
Email: cykc@cykcgroup.com.cn
Website: www.cykcgroup.com
Address: CYKC GROUP, Industrial Zone, Shenyang, China
Reach out today to learn more about how our copper mould tubes can improve your continuous casting operations.