Anti rust Oil Field API 5L X56 18M OD 1420mm Saw Steel Tube

Anti rust Oil Field API 5L X56 18M OD 1420mm Saw Steel Tube

(1) Improve the geometrical dimensional accuracy of the pipe body and pipe end of the lsaw steel pipe, so that the diameter and roundness of the pipe body and the pipe end and the diameter difference between the two ends of the steel pipe meet the standard requirements, which is convenient for on-site welding construction.
(2) Reducing the uneven deformation of the forming and welding process of lsaw steel pipe, reducing the residual stress of the pipe body caused by molding and welding, improving the distribution and improving the overall mechanical properties of the steel pipe.
(3) Conduct a comprehensive and effective inspection of the overall performance of the steel pipe.
(4) The cold expansion diameter also has the effect of improving the straightness of lsaw steel pipe, especially the straightening effect on the smaller diameter straight seam submerged arc welded pipe.
After the cold expansion of the lsaw steel pipe, the diameter of the pipe body and the pipe end will increase by about one percent. The diameter, the roundness and the diameter difference between the two ends of the steel pipe are greatly improved, and the straightness of the steel pipe is also greatly improved. The length is reduced by about 0.5%, and the wall thickness is reduced by about 0.8%. In the development of the lsaw steel pipe process, these changes should be fully considered to determine the width, length and thickness of the pipe sheet and the outer diameter of the steel pipe before the diameter expansion, so as to avoid the geometrical dimension of the steel pipe after the expansion is not up to the final requirements. LSAW pipe (longitudinal Submerged Arc Welding Pipe) is fromed by JCOE with one straight welded seam, the outer diameters usually from 610mm to 1420mm. When the outer diameter is 914.4mm above, it’s allowed two straight welded seams. LSAW pipe is used to convey low pressure liquid meida or high pressure petroleum or natural gas, and can be also used widely in structural supports or foundation. The advantage for LSAW type is they could produce more thick wall thickness of pipes, maximum to 50mm.
Size:
Outer Diameter: 610mm-1420mm
Wall Thickness: 6.35mm-50mm
Length: 6mtr-18mtr
End:square ends (straight cut, saw cut, and torch cut). or beveled for welding, beveled,
Surface: Lightly oiled, Hot dip galvanized, Electro galvanized, Black, Bare, Varnish coating/Anti rust oil, Protective Coatings
Packing:Plastic plugs in both ends, Hexagonal bundles of max. 2,000kg with several steel strips, Two tags on each bundle, Wrapped in waterproof paper, PVC sleeve, and sackcloth with several steel strips, Plastic caps.
Test:Chemical Component Analysis, Mechanical Properties (Ultimate tensile strength, Yield
strength, Elongation), Technical Properties (Flattening Test, Bending Test, Blow Test, Impact Test), Exterior Size Inspection, Hydrostatic Test, X-ray Test.