Big Diameter S355JRH LSAW Steel Pipe For Construction

Big Diameter S355JRH LSAW Steel Pipe For Construction

Longitudinal Submerged Arc Welding is a specific welding technique used in pipe production where the finished product requires a particularly high wall thickness due to high internal or external pressures.

Steel pipes are long, hot finished structural hollow section that are mainly used for the construction of airports, gymnasiums and entertainment places. They are produced mainly by two distinct manufacturing methods which result in either a welded pipe or seamless pipe. In both the manufacturing methods, raw steel is first cast into a more workable starting form (slabs, hot billet or flat strip). It is then made into a pipe by stretching the hot steel slab/billet out into a seamless pipe or forcing the edges of flat steel strip together and sealing them with a weld.

When operational conditions require high wall thickness due to high internal or external pressures, LSAW (Longitudinal Submerged Arc Welding) pipes are commonly the most economical solution.

1. Out diameter: 406.4mm - 1422.4mm (16"-56")

2. Thickness: 9.5mm-50mm

3. Length: 6m-12.5m

4. Type: LSAW (Longitudinal Submerged-Arc Welded), DSAW (Double Submerged-arc welded) Steel Pipe

5. Manufacturing Process: UO(UOE), RB(RBE), JCO(JCOE,COE)

6. Standard: EN10219/EN10210/EN10217

7. Uses: for construction.