Product Description

Usage: Used for Structure, low pressure liquid transportation, such as water, gas, and oil. Oil drilling and machinery manufacturing, etc.

ERW: Electric Resistance Welded Pipe

HFI: High Frequency Induction Weld Pipe

EFW: Electric Fusion Welded Pipe

Standard:  ASTM 53, EN10217, DIN 2458. IS 3589, JIS G3452, BS1387, API 5L

Out Diameter: 21.3mm — 660.4mm(1/2″–26″)

Wall Thickness: 1.5 – 22.2mm

Length: 0.3 – 18 M

Steel Grade:

ASTM A53: GR A, GR B, API 5L GR.B X42 X52 and so on

EN: S275, S275JR, S355JRH, S355J2H, S355K2H

GB: Q195, Q215, Q235, Q345, L175, L210, L245, L320, L360- L555

Surface: Fusion Bond Epoxy Coating, Coal Tar Epoxy, 3PE, Vanish Coating, Bitumen Coating, Black Oil Coating As Per Customer’s Requirement

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.

Mill Test Certificate: EN 10204 3.1/3.2

LSAW steel pipe (Longitudinally Submerged Arc Welding abbreviated LSAW) is a professional expression term for longitudinally submerged arc welding, which is made of a single medium and thick plate as raw material, the steel plate is pressed (rolled) into a tube billet ina mold or forming machine, and is produced by double-sided submerged arc welding and expanded diameter.


The finished LSAW steel pipe has a wide range of specifications, good toughness, plasticity, uniformity and density of the weld, and has the advantages of large pipe diameter, pipe wall thickness, high pressure resistance, low temperature resistance and corrosion resistance.


In the construction of high strength and high quality long distance oil and gas pipelines, most of the steel pipes needed are large diameter thick wall straight seam submerged arc welded pipes.