The definition and industrial use of welded pipe

The definition of welded pipe refers to a pipe made by cutting steel plates or steel strips to a certain length according to relevant national standards or specifications and then rolling, cold bending, high-frequency welding or submerged arc welding. There are three main types of common welded pipes: ERW pipes, LSAW pipes and Spiral welded pipes (SSAW). Welded pipes are widely used in various industrial fields due to their low cost, high production efficiency, and diverse shape and size options.

Welded pipes have the following main uses in the industrial field:

1. Structural Engineering

Welded pipes are widely used in structural projects such as buildings, bridges, roads, tunnels, etc. For example, used as stair handrails, guardrails, roof supports, etc. Welded pipes have excellent mechanical properties, such as high strength and pressure resistance, can meet various structural requirements, and can be processed and customized as needed.

2. Transmission pipeline
Welded pipes play an important role in transporting liquids, gases, solid materials, etc. It can serve as the main pipe or connecting pipe in a piping system. Welded pipes can be made of different materials and specifications according to the characteristics of the materials being transported, such as oil pipelines, natural gas pipelines, water supply pipelines, chemical pipelines, etc.

3. Machinery manufacturing
Welded pipes are widely used in the field of machinery manufacturing. It can be used to manufacture various types of mechanical parts and structural frames. For example, welded pipes are used in automobile manufacturing to make chassis, body frames, etc.; in engineering machinery manufacturing, welded pipes are used to make arm frames, support structures, etc.

4. Energy industry
Welded pipe also has important uses in the energy industry. For example, it is used in oil well drilling, making oil and natural gas pipelines, and manufacturing energy equipment. Welded pipes have the characteristics of high pressure resistance and corrosion resistance, and can meet the energy industry's requirements for pipeline safety and reliability.

5. Other fields
Welded pipes are also used in many other fields, such as ship manufacturing, furniture manufacturing, power equipment manufacturing, etc.
In ship manufacturing, welded pipes are used to make ship hull structures; in furniture manufacturing, welded pipes are used to make various types of bed frames, chairs and other furniture; in power equipment manufacturing, welded pipes are used to make transmission towers, cable trays, etc.   

As a common pipe material, welded pipe is widely used in structural engineering, transportation pipelines, machinery manufacturing, energy industry and other fields. It has the characteristics of low cost, high production efficiency and excellent mechanical properties.

Read more: Application of spiral welded pipe in ship manufacturing