A concrete delivery cylinder tube is the main part of a concrete delivery cylinder, which is an essential component of concrete pump. The concrete delivery cylinder is used to transport and pour concrete in construction projects. These tubes are responsible for carrying the concrete from the pump to the desired location, ensuring a smooth and efficient delivery process.
The material used to make concrete delivery cylinder tubes is typically high-quality steel, including ST52.3 / E355 /S355, CK45, SAE1026, 4140 and so on. This is because steel is able to withstand the high pressures and abrasive nature of the concrete mixture as it is pumped through the cylinder.
The steel used for concrete delivery cylinders is often treated with special coatings (typically hard chrome plating) or linings to further enhance its durability and longevity. The hard chrome plating can help protect the cylinder from corrosion, abrasion, and other forms of damage that may occur during the pumping process. In fact, the concrete delivery cylinder tube is the ID chrome plated honed tube.
ST52.3 is the most popular material of concrete pump delivery cylinders
Steel ST 52.3 is a low alloy steel that is commonly used in structural applications especailly for cylinder tubes, it is equal to steel grade E355 and S355, ST52.3 steel is the most common material for manufacturing concrete pump delivery cylinder tubes.
St 52.3 is well-known for its high strength, good toughness, and excellent weldability. It is the optimal material for various cylinder tube applications.
Here below is the chemical compositions and mechnical properties of steel ST52.3.
| Grade | Chemistry | % | Yield | Tensile | Elongation | Typical Hardness |
|---|---|---|---|---|---|---|
| min. Mpa | min. Mpa | % in 2″ section | Min | |||
| ST52.3 | Carbon | 0.140 – 0.180 | 420 | 580 | 15 | B-80 |
| Si | 0.150 – 0.300 | |||||
| Mn | 1.200 – 1.400 | |||||
| P | 0.020 max | |||||
| S | 0.010 max |
With our cold drawn and stress relieved heat treatment process, the yield strength of our st52.3 tubes can be min. 517Mpa (75000psi).
Other materials for concrete delivery cylinders
In addition to steel, some concrete delivery cylinder tubes may also be made from other materials such as composite materials or ceramic materials. These materials offer different advantages, such as increased flexibility or reduced weight, but may not be as widely used as steel due to their higher cost or lower durability.
Conclusion
Overall, the material of concrete delivery cylinder tubes plays a crucial role in the efficiency and reliability of concrete pumping operations. The most popular and common material of pump delivery cylinder is St52.3 /E355/S355. By using high-quality materials and ensuring proper maintenance, construction companies can ensure smooth and successful concrete deliveries to their projects.
Regardless of the material used, it is important that concrete delivery cylinder tubes are well-maintained and regularly inspected to ensure they are in good working condition. Any signs of wear, corrosion, or damage should be addressed promptly to prevent any issues during concrete delivery.
