The development direction and application of SSAW steel pipe

Date:2024-03-26Tags:SSAW steel pipe, steel pipe, SSAW Pipe, SSAW

SSAW steel pipe refers to a pipe with a spiral seam welded by the submerged arc welding process, including ordinary spiral steel pipe and thick-walled spiral steel pipe. Compared with ordinary thick-walled spiral steel pipes, thick-walled spiral steel pipes have the advantages of high compressive strength, high impact strength, high safety performance and longer service life. They are widely used in oil, natural gas, water conservancy, thermal power and other fields.

The quality requirements for SSAW steel pipe are very high. It is a spiral seam welded steel pipe made of strip steel coils as raw materials, extruded at regular temperatures, and welded by an automatic double-wire double-sided submerged arc welding process.

The production process of SSAW steel pipe is simple, the production efficiency is high, the cost is low, and the development is rapid. The strength of spiral welded steel pipes is generally higher than that of straight seam welded pipes. Narrow billets can be used to produce welded pipes with larger diameters. At the same time, billets of the same width can be used to produce welded pipes with different diameters.

SSAW Steel Pipe

The development direction of spiral steel pipe welding mainly includes the following aspects:

1. Produce large-diameter thick-walled pipes to improve pressure resistance;

2. Design and produce new structural steel pipes, such as double-layer spiral welded pipes, which are welded into double-layer pipes with strip steel half the thickness of the pipe wall. Not only are the strengths higher than single-layer pipes of the same thickness, but they will not cause brittle damage;

3. It also includes developing new steel types, improving the technical level of smelting processes, and widely adopting controlled rolling and post-rolling waste heat treatment processes to continuously improve the strength, toughness and welding performance of the pipe body;

4. Vigorously develop coated pipes. For example, coating the inner wall of the pipe with an anti-corrosion layer can not only extend the service life, but also improve the smoothness of the inner wall, reduce fluid friction resistance, reduce wax and dirt accumulation, reduce the number of pipe cleaning times, and reduce maintenance costs.

Application areas:

Long-distance pipelines: Spiral submerged arc welding technology is widely used in the long-distance pipeline industry. This process is suitable for manufacturing large-diameter pipelines and can meet the needs of long-distance transportation of oil, gas, water and other liquids. Spiral welding enables the pipeline to adapt to the needs of complex environments on the ground or underground, and ensures the stability and safety of the pipeline.

Structural Engineering: Spiral submerged arc welding is also used in building structures, bridges, docks and other engineering projects. Its welding quality is stable and reliable, and can meet the requirements of structural engineering for strength and stability.

Marine engineering: In the field of marine engineering, spiral submerged arc welding can be used to manufacture submarine pipelines, offshore platform structures, etc. This process can adapt to the special requirements of the marine environment and has good anti-corrosion performance and durability.

Petrochemical industry: In the petrochemical industry, spiral submerged arc welding is often used to manufacture chemical equipment, oil tanks, etc. This process can ensure the stability and safety of the equipment and is suitable for harsh working conditions such as high temperature and high pressure.

Infrastructure construction: Spiral submerged arc welding technology can also be used in the construction of urban water supply pipelines, sewage pipelines, gas pipelines and other infrastructure. Its production efficiency is high and it can quickly meet the needs of urban infrastructure construction.

In general, spiral submerged arc welding technology is widely used in many different fields. Its advantages include high production efficiency, good pipeline stability, and wide application range. When choosing to use it, comprehensive considerations need to be made based on specific project needs and environmental characteristics to ensure project quality and safety.

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