Technicality and Characteristics of Seamless Square Pipe

The product features an outer layer treated with hot-dip galvanizing and painting for corrosion resistance, and an inner layer made of seamless steel tubes with specially designed raised inner ribs and polypropylene plastic tubes, bonded through a unique processing technique.

2. Seamless square tubes are rigid yet possess a certain degree of softness. They are resistant to deformation under compression and are impact-resistant. They have high installation reliability and do not脆ify under gas or sunlight.

3. Corrosion and pressure resistance tests. Operation temperature for heating pipes: 0°C to 75°C, instantaneous temperature up to 95°C, pressure ≤ 1.6 MPa; operation temperature for cold water pipes: 0°C to 55°C, pressure ≤ 2.0 MPa.

4. High thermal insulation and corrosion resistance. Suitable for concealed installation, both in buried and surface-mounted configurations.

5. Non-toxic and safe for health. All performance parameters exceed the national health department's quality standards.

6. The interior is smooth, rust-free, and free of deposits, offering a total flow rate 25%-30% higher than that of metal hoses with the same nominal diameter. There is no nominal diameter damage at the connection parts.

7. Employing a unique processing technique, a convex mesh-like structure pattern is produced inside the seamless steel tube, significantly enhancing the sliding friction between the outer metallic hose and the inner plastic hose.

Furthermore, it has reasonably reduced the inconsistency of internal and external tube intermediate thermal expansion, with the thermal expansion coefficient of seamless square tubes at 2.5×(1/100000)/°C, and a service life five times that of hot-dip galvanized steel pipes.

8. Installation is easy and reliable; the quick waterproof connection parts are used for assembly, eliminating the need for threading, saving time and effort.

Large-diameter square pipes have a very wide range of applications due to their thick walls, which allow them to withstand high working pressures. Generally, they can serve as raw materials for hollow components and are used in critical pipeline applications that require strength. They can actually be used as structural tubes for airlines, drilling pipes for crude oil geological exploration, and tubes for petrochemical equipment. When applying square steel pipes, it is necessary to comply with relevant policies and regulations. Therefore, different applications require different specifications of pipes. This presents a key prerequisite for the use of seamless square pipes, particularly when transporting highly flammable materials. It is crucial to find the appropriate size of seamless steel pipes to reasonably prevent the occurrence of accidents.