DSAW/ LSAW Steel Pipe
LSAW steel pipe (Longitudinal double submerge arc welding steel pipe/DSAW steel pipe) is one kind of the SAW pipes,it is made of steel plates of hot rolled by JCOE or UOE forming technology. Our company usually produce the pipes by JCOE technology,the JCOE means the forming process, as J shape firstly, then C shape, and then O forming,E forming process at last, while inner & outside welding and cold expansion after welding. Compared with UOE LSAW pipes, our productive line could produce more sizes,OD406mm-1620mm, pipe length: 2m-18m,the thcikness from 6.35mm-60mm and our LSAW pipes has its superiority:
• Feature: Large diameter,thick wall,high pressure&low temperature resistance.
• Test: Chemical Component Analysising, Mechanical Properties (Ultimate tensile strength,Yield strength, Elongation), Technical Properties (Flattening Test,Blow Test, Impact Test,DWT test),Exterior Size Inspection, Hydrostatic Test, X-ray Test,UT test.
• The basical metal and welding metal were tested according to the pipe specification API SPEC 5L,ASTM,EN,DIN ,GOST standard,or other standard.
•Our LSAW pipes could also be welded with flanges ,lifting eyes or other parts according to the requirement of the clients.
Our LSAW steel pipe (Longitudinal double submerge arc welding steel pipe/DSAW steel pipe)are Widely used for liquid delivery,such as oil,gas,water transportation and seashore project,or ground constructions. Our products has been exported to many other countries such as :America,Russia,Canada, Pakistan,India, Africa and so on. And we keep good relationship with many national oil company ,such as EGPC, PETROJET, PDVSA, NNPC, CNPC, ect.
ASTM A252 carbon steel pipe covers nominal (average) wall steel pipe piles of cylindrical shape and applies to pipe piles in which the steel cylinder acts as a permanent load-carrying member, or as a shell to form cast-in-place concrete piles.
The latest development progress of ISO3183 pipeline were follow studied, such as new voting projects. The aim of the said actions are as following it will promote foreign trade healthy development of China pipeline.
DIN EN 10217-1-2005 is the standard aboutr welded steel tubes for pressure purposes - Technical delivery conditions - Part 1: Non-alloy steel tubes with specified room temperature properties; German version EN 10217-1:2002 + A1:2005
Longitudinal double submerge arc welding steel pipe(LSAW steel pipe) is made of steel plates of hot rolled by JCOE. JCOE means the forming process,as J shape,C shape,O forming,inner&outside welding and cold expansion after welding.It only has one straight
The dimensions of the pipes and deviations must comply with values set by GOST-8731-1974/GOST 8732-78
Material:GR.A GA.B X42 -X80,ect
Packing:Bebelled end ,painting ,protector ,or coating ,small sizes could be Hexagonal shape bundles wrapped with strong steel strip
Double submerge arc welding steel pipe (DSAW )/Longitudinal-seam Submerge arc welding steel pipe(LSAW)
Product specification level(PSL),there are PSL1,PSL2.PSL2 NACE for sour service.
NACE MR 0175 require the pipe material anti sour service for LSAW steel pipe.Such as H2S gas transportation. Special Test for NACE: Chemical Component Analysis especially for S,P content.
- Contact Us
- Zhifangtou Industrial Park,Cangzhou City,Hebei Province China