What are the uses of SSAW steel pipes?

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.

Applications of SSAW Steel Pipe

1. Long-Distance Pipelines
Spiral submerged arc welding is ideal for large-diameter pipelines transporting oil, natural gas, water, and other liquids over long distances. The spiral seam ensures flexibility to adapt to complex terrains and underground conditions while maintaining pipeline stability and safety.

2. Structural Engineering
SSAW steel pipes are used in bridges, docks, and building structures, where reliable weld quality and structural strength are critical.

3. Marine Engineering
For submarine pipelines and offshore platforms, SSAW pipes provide excellent corrosion resistance and durability, meeting the challenging requirements of marine environments.

4. Petrochemical Industry
In the petrochemical sector, spiral welded pipes manufacture chemical equipment, oil tanks, and high-pressure vessels, ensuring safety and reliability under extreme conditions.

5. Infrastructure Construction

SSAW steel pipes are widely applied in urban water supply, sewage, and gas pipeline projects. High production efficiency allows quick response to urban infrastructure demands.

National Standard Spiral Steel Pipe: Materials and Applications

National standard spiral steel pipes, also known as 9711 spiral steel pipes, include 9711.1 and 9711.2 spiral steel pipes.  Based on the material, they can be classified into 16Mn, Q345B, L245, L360, and X40–X80 spiral steel pipes. The product uses hot-rolled steel strip as raw material, is spirally formed at room temperature, and welded using automatic submerged arc welding. Production standards comply with API 5L, EN10217, GB/T9711.1, and GB/T9711.2, and meet the requirements of the Ministry of Petroleum standard SY/T5037.

National standard spiral steel pipes are widely used in the transportation of various fluids and in steel structure engineering. In fluid transportation, they can be used to transport flammable fluids such as oil and natural gas, as well as non-flammable fluids in water supply, sewage treatment, waterworks, power plants, and chemical enterprises, and even in nuclear power pipelines. In steel structure engineering, spiral steel pipes can be used in large bridges, docks, airports, and other engineering structures. In offshore engineering, they can be used as oil and gas well pipes and submarine oil pipelines. In underground infrastructure, they can be used for water supply, gas, heating, and drainage pipelines. With their high strength, excellent welding performance, and wide applicability, national standard spiral steel pipes are widely used in the petroleum and natural gas industries and various large-scale engineering constructions.

Conclusion

SSAW steel pipes manufactured using spiral submerged arc welding technology offer a versatile, high-strength solution for multiple industrial applications. Their advantages in production efficiency, structural integrity, and adaptability make them suitable for oil, gas, water, marine, and infrastructure projects. When selecting SSAW steel pipes, it is essential to consider project-specific requirements and environmental conditions to ensure long-term reliability and safety.