Marine Offshore IS 3589 JIS G3452 Submerged Arc Welded Pipe

Marine Offshore IS 3589 JIS G3452 Submerged Arc Welded Pipe

Longitudinal submerged arc welded pipe (LSAW pipe for short). Longitudinal Submerged Arc Welding (LSAW) is a process of pressing (rolling) steel plate into the billet of die or forming machine, using single plate as raw material. Double-sided submerged arc welding is used to enlarge the diameter. The finished product has complete specifications, good weld toughness, good plasticity, uniformity, compactness, large diameter, thick wall, high pressure, low temperature and corrosion resistance. it is widely use in marine offshore field.


In the construction of marine offshore , high toughness and high quality, most of the required steel pipes are large diameter thick wall straight submerged arc welded pipes. According to EN 10219 standard.
JCOE welded pipe: according to the "J-C-O-E" process, pre-welding, forming, cold expansion after welding;
HME welded pipe: The process of cold expansion after welding is formed by "C-C-O" by spindle rolling.


The main technical parameters of LSAW are as follows:
Wall thickness: 9.53-50mm
Product Standards: EN 10219
The diameter of LSAW pipe can reach 406.4-1422.4mm.
The length of the steel tube can reach 12.5m