API 5L GR.B LSAW sch 10 carbon welded steel pipe

API 5L GR.B LSAW sch 10 carbon welded steel pipe
API 5L GR.B LSAW sch 10 carbon welded steel pipeAPI 5L GR.B LSAW sch 10 carbon welded steel pipeAPI 5L GR.B LSAW sch 10 carbon welded steel pipeAPI 5L GR.B LSAW sch 10 carbon welded steel pipeAPI 5L GR.B LSAW sch 10 carbon welded steel pipe
CategoriesLSAW Steel Pipe
AlbumView larger image
ModelUOE
Product nameLSAW round welded steel pipe
MaterialQ235b,Q345b
O.D310mm~1420mm
Lengthup to 12m
Standard 1GB/T3091-2008
Standard 2GB/T9711.1(2)-1997
Standard 3ASTM A252
Payment methodFOB,CFR,CIF,EXW
Third party inspectionSGS,TUV
Supply Capacity10000 Tons per month
Unit PriceUS $ 550-600 / ton
FOB portTianjin,China
Terms of PaymentL/C, Western Union, T/T
Update Time2017-02-28
Detail Information

API 5L GR.B LSAW sch 10 carbon welded steel pipe

lsaw steel pipe


What is LSAW (Longitudinally Submerged Arc Welding) steel pipe?


LSAW and HSAW are variants of SAW (submerged arc welded) pipes. The difference between them is the way they are welded. In LSAW pipes, the welding is longitudinal, which means that steel (hot rolled coil plate) is rolled into a pipe and the seam is welded longitudinally.


In the HSAW type, steel coils are welded spirally, like a helix, so that the coil (strip) assumes the shape of a pipe. SAW pipes are used mainly in oil and gas transportation. On the other hand, seamless (non-welded) pipes are mainly application in oil and gas exploration projects.


lsaw pipe details


What is the complete produce process of LSAW STEEL PIPE?


There are several technique to produce LSAW steel pipe,such as UOE,JCOE,RBE and so on.But the main method is UOE technique.


UOE is a method used for production of longitudinally welded large diameter pipes. Longitudinal edges of steel plates are first beveled using carbide milling equipment. Beveled plates are then formed into a U shape using a U-press and subsequently into an O shape using an O-press.Longitudinal edges of the plates are then tack welded followed by internal and external welds.Pipes manufactured by this process are subjected to expanding operation in order to relieve internal stresses and obtain a perfect dimensional tolerance.


Longitudinal edges of the plates are then tack welded followed by internal and external welds.


Pipes manufactured by this process are subjected to expanding operation in order to relieve internal stresses and obtain a perfect dimensional tolerance.


After the pipes are conveyed to cold expansion, hydrostatic testing and NDT inspection, the pipes will be subject to final inspection for the compliance to customer requirements.


Starting from incoming control up to the final inspection stage; entire process is monitored and supported by computerized system. Traceability is achieved by input controls and barcodes through entire production lines.


ssaw-UOE


You can understand better by these produce equipment


lsaw pipe process


Which specifications we can offer?


lsaw pipe specification


What is the LSAW welding pipes' application areas?


Longitudinally welded steel pipes are used in onshore and offshore oil and gas pipelines requiring critical service, high performance and tight tolerances. LSAW pipe are also used in conveyance of flammable & nonflammable liquids, and as structural members in construction projects.


lsaw pipe for oil and gas

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