How to manufacture large spiral steel pipe

Spiral pipe, also known as spiral steel pipe or spiral welded pipe, is made by rolling low carbon structural steel or low alloy structural steel steel strip into a tube blank at a certain spiral angle (called forming angle), and then welding the pipe seam , It can produce large diameter steel pipe with narrow strip

For liquid transportation: water supply, drainage, sewage treatment project, mud transportation, ocean water transportation. For gas transportation: coal gas, steam, liquefied petroleum gas. For structural use: for piling pipes and bridges; for pier, road, building structure, marine piling pipes, etc.

As shown: