LSAW is an abbreviation for Longitudinal Submerged Arc Welding. The LSAW pipe production process begins with a plate which is formed into a pipe by joining each side of the plate/strip longitudinally according to the required diameter, then welded with filler metal.

2020年5月6日 · LSAW Pipes has two types: Longitudinal (Single or Double Straight-seam Weld, DSAW) and Spiral (also called SSAW, HSAW, or SAWL). What makes DSAW pipes differ from other LSAW pipes is that DSAW have a seam weld in the inside and outside of the pipe, while the latter have a single seam weld on the outer surface, longitudinal or cross sectional.

In this article, we will explore the basic concepts and differences between four primary types of pipes: SMLS, long seam electric resistance welded (ERW), submerged arc welded (LSAW), and spiral submerged arc welded (SSAW).

2018年12月20日 · LSAW pipes. An LSAW pipe (“submerged arc welding”) is manufactured by cutting, bending, and welding steel plates (JCOE process). LSAW pipes compete with seamless and ERW pipes in the size range between 16 and 24 inches but are a “must-go” option for pipelines above 24 inches (as 24 inches is the maximum size for commercial seamless pipes).

2024年12月26日 · SSAW pipes use a spiral welding technique, LSAW pipes utilize longitudinal welding, and ERW pipes are produced through electric resistance welding. Understanding these distinctions is crucial for selecting the right pipe for a given project.

2021年4月9日 · An LSAW pipe (“submerged arc welding”) is manufactured by cutting, bending, and welding steel plates (JCOE process). The two main types of LSAW pipes are the longitudinal (with a single or double straight seam weld, DSAW) …

2025年3月28日 · Longitudinal submerged arc welding pipe (LSAW) pipes have high strength and pressure resistance. They are widely used in long-distance, large-diameter oil and gas transmission pipelines. The LSAW pipes are suitable for high-pressure environments.

2022年5月25日 · The main difference between LSAW and SSAW pipes is the direction of the seam weld, which affects the pressure bearing capacity and manufacturing ease. LSAW is used for medium to high-pressure services and SSAW is used for low-pressure services. LSAW pipe has higher costs than SSAW pipe.

LSAW (Longitudinal double submerge arc welding) carbon steel pipe is a type of SAW pipe made of steel plates that were hot rolled by JCOE or UOE forming technology. JCOE technology represents the shaping and forming processes involved during manufacturing as well as the inner and outer welding and cold expansion carried out after welding.

LSAW pipe is well known in the modern industrial zero and global steel pipe market for its superior corrosion resistance, high strength and good weldability. High quality welds: Submerged arc welding provides uniform and high quality welds. Variety of sizes: large diameter and thick walled steel pipes can be manufactured.