ST52 Seamless Concrete Pump Pipe
As the core component of the concrete pumping system, ST52 seamless welded concrete pump pipe has become an indispensable key component in the modern construction industry due to its excellent mechanical properties and long service life. In this article, we will comprehensively introduce the characteristics, advantages and application scenarios of ST52 seamless welded concrete pumping pipe to help you understand why this material has become the industry’s first choice.
The excellent characteristics of ST52 seamless welded concrete pump pipe
ST52 is a German standard high-strength low-alloy structural steel with a chemical composition of about 0.22% carbon and 1.6% manganese, while strictly controlling the content of phosphorus (≤0.03%) and sulfur (≤0.025%).8 This unique compositional ratio endows ST52 material with excellent comprehensive performance:
High strength: High tensile strength of 580MPa, yield strength of 420MPa, much higher than ordinary carbon steel8
Good toughness: elongation of 10%, able to withstand the impact and vibration of the concrete pumping process8
Excellent weldability: suitable for a variety of welding processes, to ensure that the flange connecting parts of the firmness of the 3
ST52 seamless welded concrete pump pipe is manufactured using an advanced hot-rolling process, the body of the pipe without welds, overall performance Uniformity, avoiding the stress concentration and corrosion potential that may exist in traditional welded pipes.10 The thickness of the pipe wall is usually 4.5mm-11mm, which can be selected according to different pressure requirements.
Professional Manufacturing Processes and Strict Quality Control
High-quality ST52 Seamless Welded Concrete Pump Pipes need to go through a number of precision processes from raw materials to finished products:
Raw Material Selection: High-quality ST52 Seamless Steel Pipe Billets provided by Anshan Iron & Steel and other large-scale iron and steel enterprises are used. ST52 seamless steel pipe billets are used to ensure stable material performance3
Precision processing: precise cutting according to the length required by customers to ensure dimensional accuracy3
Flange welding: automatic welding equipment and high-quality flux-cored electrodes are used to ensure that the weld seam is beautiful and solid5
Heat treatment: high-frequency induction quenching process is used to form a super wear-resistant layer with a thickness of 3.7mm inside the pipe body5
Surface treatment: sandblasted and rust removed, electrostatic spraying or painting process is used to remove the rust. After sand blasting and rust removal, electrostatic spraying or painting process is adopted to improve the anti-corrosion performance2
It is especially worth mentioning that the professional manufacturer adopts the technological sequence of “welding and then quenching”, which effectively prevents deformation and annealing during the welding process, and avoids the common problem of flange inner sleeve falling off.5 This strict control of details is the key to ensure the long-term stable operation of the pump pipe.
Outstanding Performance Advantages and Application Scenarios
ST52 seamless welded concrete pumping pipe has significant advantages over ordinary material pumping pipe:
Extra-long service life: the service life of standard ST52 pumping pipe reaches 15,000-20,000 cubic meters of concrete conveying capacity, and that of the quenched one can reach 25,000-40,000 cubic meters.3
High abrasion resistance: the hardness of the surface can reach 67HRC after the quenching treatment, and the abrasion resistance is better than ordinary pipe. High abrasion resistance: the surface hardness after quenching treatment can reach 67HRC, and the abrasion resistance is 8 times higher than that of ordinary pipes.45
High pressure resistance: the working pressure can reach 85Bar, which can meet various high-intensity pumping needs.16
Wide compatibility: equipped with SK, HD, ZX, MF and other flanges, which is suitable for the mainstream pumping trucks brands, such as Putzmeister, Schwing, Sany, Zoomlion, and so on.13
These excellent performances make ST52 seamless welded concrete pump pipe a perfect choice for the following scenarios. These excellent properties make ST52 seamless welded concrete pump pipe ideal for the following application scenarios:
High-rise building construction: to withstand long-distance, high-pressure vertical pumping of concrete
Large-scale infrastructure projects: such as bridges, tunnels and other projects that require continuous and high-intensity operation
Commercial concrete batching plant: to meet the needs of high-frequency, large-volume concrete conveying
Special engineering environments: such as low-temperature, corrosive environment of the concrete construction
Choosing high-quality ST52 seamless welded concrete pump pipe Suggestions for Welded Concrete Pump Pipe
As a professional concrete pump pipe manufacturer, we suggest that customers pay attention to the following points when choosing ST52 seamless welded concrete pump pipe:
Material certification: require suppliers to provide material certificates and mechanical property test reports14
Manufacturing process: give priority to products with high-frequency induction hardening and automatic welding process5
Flange quality: check the welding quality of the flanges and the matching accuracy of the collar 3
After-sales service: choose professional manufacturers who provide more than 1 year warranty14
Customization ability: choose products with suitable length (1m-12m), thickness (4.5mm-11mm) and color according to actual demand23
As a professional concrete pump pipe manufacturer with 22 years of industry experience, we adopt advanced equipment and strict quality control system to produce ST52 seamless welded concrete pump pipe in terms of Abrasion resistance, pressure resistance and service life have reached the industry leading level.5 We can provide customized service of various specifications according to customers’ needs, and supply a full set of concrete pumping accessories such as elbows, clamp couplings, reducers, etc.3.
Choosing high-quality ST52 seamless welded concrete pumping pipe not only improves the construction efficiency and reduces the frequency of replacement, but also significantly reduces the loss of work stoppage due to the failure of pumping pipe. Provide reliable protection for your project. For more product information or professional advice, please feel free to contact us.