Thick-walled Square Welded Pipe

Thick-walled square welded pipe is a type of welded steel pipe with a hollow square cross-section, and the pipe wall thickness is usually more than 10mm. It uses hot-rolled or cold-rolled steel strips, coils, etc. as base materials, which are formed by cold bending processing and then made into square cross-section section steel through high-frequency welding and other processes. It can also adopt processes such as arc welding, gas welding, furnace welding, and can be divided into straight seam welding, spiral welding and other forms. The materials include carbon steel (such as Q195, Q235), low-alloy steel (such as Q355, 16Mn), etc., which can adapt to different scenario requirements.

Main Features

• Excellent Mechanical Properties: The wall thickness design gives it strong compressive, deformation-resistant and fatigue-resistant capabilities, enabling it to bear large loads. It is stable and reliable as a load-bearing structure in construction, machinery and other fields. For example, in large building steel structure frames, it can ensure the force safety of the overall structure.
• Diverse and Flexible Materials: Different materials give different properties. Carbon steel meets general strength requirements, low-alloy steel can maintain performance in complex environments such as high temperature and high pressure, and stainless steel has excellent corrosion resistance and aesthetics, suitable for special industries such as food and medical care.
• Efficient Cross-section Utilization: The square cross-section is more flexible in structural arrangement, which can effectively utilize space, reduce material waste and improve the overall structural efficiency. For example, in steel structure buildings, it can optimize the space layout and make the architectural design more reasonable.
• Wide Adaptability of Production Processes: There are various production processes such as high-frequency welding and cold drawing forming. High-frequency welding has high production efficiency and is suitable for mass production; cold drawing forming has high dimensional accuracy and good surface quality, meeting scenarios with high precision requirements.

Application Fields

Construction Field: Used as steel structure frames, bridge supports, large equipment foundations, etc., such as truss structures and curtain wall support systems of airport terminals and stadiums. With its mechanical properties and appearance advantages, it has become a key material in modern buildings.
Machinery Manufacturing Industry: It is the first choice for key components such as heavy machinery, pressure vessels, and conveying pipelines, ensuring the safe operation and long-term stability of equipment. For example, the frames of industrial machinery and pipelines for conveying fluids can bear the pressure of mechanical operation and medium transmission.
Petroleum, Chemical and Electric Power Fields: In high-temperature, high-pressure and chemically corrosive environments, it is used for conveying pipelines, etc., ensuring the continuity and safety of production. For example, petroleum conveying pipelines can resist oil corrosion and pressure for stable transmission.
Shipbuilding Industry: It can be used for ship structural parts, meeting the mechanical and corrosion resistance requirements of ships in the water environment, helping to improve the quality and performance of ship construction.
Other Scenarios: It is also used in agricultural greenhouses (as a framework to support the shed body), stadiums (to construct stadium structures), billboards (as support frames), etc. With its versatility and adaptability, it covers the temporary or long-term construction needs of multiple industries.