Main characters of LSAW steel pipe

1) Pipes have a longitudinal weld, internal and external weld both adopts a submerged arc welding.
2) With the whole mechanical expanding processing, stress in the internal of steel pipe is small and uniform distribution, which can effectively prevent stress corrosion cracking, and high dimensional accuracy, it will helping on-site welding construction.
3) Adopting finish welding process after prewelding, process is stable and weld quality is high.
4) In the process of producing and when using outdoor, we can easily take NDT for steel pipe.
5) Large range of steel pipe size, we can produce pipes with small OD, large WT as well as large OD and big WT steel pipe.