In recent years, China's coastal areas are also building large-scale offshore deepwater wharf projects. As the main bearing capacity of deep-water wharf, large diameter spirally welded steel pipe piles are commonly used. In addition, repair bridges, road maintenance, high-rise buildings and so on. Pile driving pipe is needed. The diameter of pile pipe is getting bigger and bigger. The maximum diameter of pile pipe has been produced to 3620 mm. It is widely used in coastal areas, rivers and lakes.


Standard: ASTM A252
Outer diameter: 219-3620 mm.
Wall thickness: 6-25 mm.
Length: 8.0 - - 12 meters


Appearance quality:
There should be no cracks, arc breaks, pits and voids on the surface of welded steel pipes. The welding seam with the above defects can be repaired and the defects can be repaired or repaired. Steel pipes can be welded to steel pipes. Steel pipes are allowed to be connected through two sections. Butt welding can be done by submerged arc welding or manual welding.