LSAW Carbon Steel Pipe Longitudinal Submerged Arc Welded Carbon Steel Pipe

LSAW Carbon Steel Pipe

Overview (Brief Lead)

Our LSAW Carbon Steel Pipe is fabricated from high-quality medium-thick carbon steel plates through cold bending and double-sided longitudinal submerged arc welding. Featuring stable forming, precise dimensions and robust overall structural performance, the pipe supports custom dimensions and multiple anti-corrosion treatments. Compliant with globally recognized standards and fully inspected, it is the ideal piping solution for high-pressure fluid transport and heavy-load structural engineering.

Detailed Introduction

Our LSAW carbon steel pipe takes premium medium-thick carbon steel plates as raw materials. Production includes single plate cold bending, longitudinal forming and double-sided submerged arc welding. It achieves full weld penetration, compact internal structure, stable pipe shape and high dimensional accuracy.

Compared with spiral welded pipes and high-frequency straight seam pipes, LSAW steel pipes are more suitable for large-diameter, thick-wall and high-pressure working conditions, especially harsh low-temperature and high-toughness environments. It is widely adopted in key engineering projects around the world.

Size & Material Range

Product Performance

The pipe boasts high structural strength, excellent low-temperature toughness, superior pressure resistance and deformation resistance. Mature welding technology eliminates defects such as pores and slag inclusions, delivering uniform wall thickness and perfect roundness with reliable bending, torsion and fatigue resistance.

We offer various surface treatments: FBE, outer 3LPE/3LPP anti-corrosion coating, internal epoxy drag reduction coating and cement weight coating, matching various complex service environments.

Production & Quality Control

Our production lines are highly automated, with real-time monitoring of core forming and welding processes. Each finished pipe undergoes ultrasonic testing, X-ray inspection and hydrostatic pressure testing, alongside complete mechanical tests including impact, tensile and hardness tests. No unqualified products are shipped from our factory.

Application Scenarios

Energy transportation: long-distance oil & gas trunk lines, urban gas pipe networks, high-pressure oil and water delivery pipelines

Structural engineering: bridge pipe piles, high-rise building steel frames, wind tower supports, offshore platform structures

Municipal & industrial projects: sewage trunk pipelines, power plant circulating water pipes, chemical fluid pipelines, port and tunnel structural supports

We possess years of steel pipe manufacturing experience. Our LSAW carbon steel pipes excel in adaptability, service life and cost efficiency. We supply bare pipes, anti-corrosion coated pipes and custom-length products complying with various national standards, stably meeting global project procurement needs of all scales.