Types of welded steel pipes

Types of welded steel pipes

Welded steel pipe refers to the steel strip or steel plate bent or square after welding of the surface of the steel pipe with joints, the production process of welded steel pipe is simple, high production efficiency, the variety of steel pipe specifications. According to the different welding methods of welded steel pipes can be divided into arc welding pipe, high frequency or low frequency resistance welding pipe, gas welding pipe, furnace welding pipe, bondi pipe and so on. According to the shape of the weld, it can be divided into straight seam welded pipe and spiral welded pipe.

LSAW steel pipe
Longitudinal Submerged Arc welded steel pipe is a steel pipe made by rolling a steel plate into a circle and then welding along the steel lengthwise. It is a common type of welded steel pipe, mainly used for conveying fluids and as a structural material.
SSAW steel pipe
Spiral Submerged Arc welded steel pipe is a kind of steel pipe by coiled steel plate into a tube shape in a spiral way and welded along the spiral weld. Because of its flexible production process and wide applicability, this steel pipe is widely used in all kinds of pipeline projects, especially in long-distance pipelines transporting liquids and gases.
ERW steel pipe
Electric Resistance Welded steel pipe is a steel pipe formed by heating the edge of the steel with an electric current and then welding under pressure. This welding method does not require filling materials, nor does it produce welding slag, so the welding speed is fast, the weld quality is good, and it is widely used in oil, natural gas, water supply and other liquid and gas transmission pipelines.

Application fields of welded steel pipe:

Oil, natural gas and liquid transportation pipelines: Welded steel pipes are widely used in oil, natural gas, gasoline, chemical liquids and other energy long-distance transportation pipelines. Especially suitable for medium and low pressure conveying systems.

Water supply and gas supply pipeline: Welded steel pipe is widely used in the city's water supply, gas supply, heating system, is widely used to transport clean water, natural gas, gas and other media.

Building structure: Welded steel pipe is widely used in building structures, including building supports, steel structure frames, bridge pile foundations and so on.

Mechanical manufacturing: Welded steel pipe in mechanical equipment structural parts, transmission shaft, frame, hydraulic system pipes and other parts have a wide range of applications.

Hydraulic engineering: Welded steel pipes are also often used in DAMS. The irrigation system. Water pipeline and other water conservancy facilities.

Power and energy industry: Welded steel pipes are used in transmission towers in the power industry, drainage and water supply systems in power plants, and tower parts of wind power towers.

In summary:
The application field of welded steel pipe is extremely wide, covering many industries from energy transportation, infrastructure construction to machinery manufacturing, home production and so on. Its specific use and selection depend on the process requirements of the pipeline, the use environment and the bearing requirements. Through different welding processes and material choices, welded steel pipes can meet different technical needs and are indispensable materials in modern engineering and industrial fields.