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-1422mm, pipe length: 5.8m-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.
JCOE LSAW steel pipeline
Outer Diameter (OD)
Wall Thickness (W/T)
API Spec 5L(PSL1,PSL2), ASTM A252, ASTM A672, ISO3183, etc
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