Tangshan scaffolding pipes are a type of welded steel pipe, manufactured by rolling steel strips into shape and then welding them together.

Tangshan's ladder pipe production process is simple, with high efficiency and a wide variety of specifications. It requires minimal equipment investment, although its general strength is lower than that of seamless steel pipes. However, it is more affordable and suitable for construction site scaffolding use.

20Century30Since the era, with the rapid development of continuous strip rolling production and advancements in welding and inspection technologies, the quality of welds has continually improved. The variety and specifications of welded steel pipes have increased significantly, and they have increasingly replaced seamless steel pipes in more and more fields. Welded steel pipes are categorized into straight seam and spiral seam pipes based on the type of weld.

Heliarc pipes generally have higher strength compared to straight seam pipes. They can produce larger-diameter pipes using narrower billets and can also create pipes of different diameters with the same width billets. However, the length of the weld seam is increased compared to straight seam pipes of the same length.30~100%And due to slower production rates, smaller diameter welded pipes are generally produced using straight seam welding, while larger diameter pipes are mostly made using spiral welding.

General Low-pressure Fluid Transmission Spiral Seam Submerged Arc Welded Steel PipeSY5037-83These are submerged arc-welded steel pipes used for the transportation of general low-pressure fluids such as water, gas, air, and steam, manufactured from hot-rolled steel strip coils, often formed by warm spiral rolling, and joined using double-sided automatic submerged arc welding or single-sided welding methods.