LSAW steel pipe API 5L 5CT ASTM A53 EN10217

LSAW steel pipe API 5L 5CT ASTM A53 EN10217

Standard: API 5L, API 5CT, ASTM 53, EN10217, DIN 2458. IS 3589, GB/T3091, GB/T9711
Certificate: API 5L PSL1 / PSL2, API 5CT
Out Diameter: 323.9mm-1820mm(12''-72'')
Wall Thickness: 5.0 - 50mm
Length: 6 – 12m

Steel Grade: API 5L: GR B, X42, X46, X56, X60, X65, X70
EN: S275, S275JR, S355JRH, S355J2H
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, X-ray Test.
Mill Test Certificate: EN 10204/3.1B

Usage: Used for low pressure liquid delivery, such as water, gas, and oil.


Differences Between LSAW Pipe and SSAW Pipe

API LSAW Pipe Manufacturing Process
LSAW Pipe (Longitudinal Submerged Arc-Welding Pipe), also called SAWL pipe. It is taking the steel plate as raw material, mold it by the molding machine, then do double-sided submerged arc welding. Through this process the LSAW steel pipe will get excellent ductility, weld toughness, uniformity, plasticity and great sealing.

SSAW Pipe (HSAW Pipe) Manufacturing Process
SSAW Pipe (Spiral Submerged Arc-Welding Pipe), also called HSAW pipe (Helical SAW), welding line shape like a helix. It is using the same welding technology of Submerged Arc-Welding with LSAW pipe. Differently SSAW pipe is spiral welded where the LSAW is longitudinally welded. Manufacturing process is rolling the steel strip, to make the rolling direction have an angle with the direction of the pipe center, forming and welding, so the welding seam is in a spiral line.


Applications of LSAW pipe
It has been widely applied in the oil and gas pipelines, specially required large diameter and thick wall pipe with high strength and long distance. Meanwhile in construction of structure that need tough strength, water treatment, thermal industry, bridge building, etc. According API specifications, the LSAW pipe (SAWL pipe or JCOE pipe) is specially designated in large scaled oil and gas transportation, in the cases that pipelines across the city, sea, and the urban area. These are the class 1 and class 2 areas.


Quality Gurantee:
Double or triple marking of the pipes, internal marking and outside marking are ok for us.
Guaranteed straightness, guaranteed out of roundness tolerance,
Quality control system :WPS/ITP/regular check-ups on production

Quality Control Plan(QCP/ITP):

100% ultrasonic flaw detection for the material plate;

100% automatic on-line UT test after welding;

100% whole-length seam X-ray test;

100% inside weld line industrial TV test;

100% hydrostatic test;

100% automatic on-line seam UT test after hydrostatic test, expanding;

100% X-ray test and make X-ray film or picture record on pipe ends;

100% pipe appearance and plate appearance inspection,

All above tests are proceeded by quality control department.The purpose is to ensure our product to meet standard requirement and satisfy the users.