Spiral Welded Pipes

Spiral Steel Pipes

Spiral Pipes, characterized by their unique structure, are a notable innovation in the world of steel piping. These pipes are crafted using a distinctive helical welding technique that involves continuously welding a long strip of steel coil along its spiral seam. The result is a pipe with a spiral-shaped seam running along its length, giving it its distinct name and appearance.

This spiral seam provides exceptional strength and structural integrity, making spiral pipes ideal for applications requiring robust and reliable piping
solutions.

Spiral Welded Steel Pipes

Spiral welded steel pipes are a steel tubing manufactured with a helical or spiral welding process. They are applied in many areas, such as oil and gas transport, water transport, and other structural applications.

Spiral Welded Pipes Production Process

Unwinding Steel Coil: A long, continuing strip of steel is termed a hot-rolled coil that is unwound and guided to the forming section.

Forming: The strip is continuously formed into a spiral through special formation rollers.

Welding: The edges of the strip are welded using submerged arc welding (SAW) method applied from inside, outside, or both.

Inspection & Testing: The welded pipes are subjected to non-destructive testing (NDT) techniques like ultrasonic or radiographic testing to confirm the quality of the welds.

Cutting & Finishing: The pipe is cut to the required length and then passed through finishing processes, which may include end-facing and coating.

The spiral structure of these pipes not only ensures strength but also enhances their flexibility and adaptability. This design allows spiral pipes to withstand internal and external pressures while accommodating thermal expansion and contraction. The consistent spiral weld also ensures a smooth inner surface, minimizing flow resistance and turbulence in fluid or gas transmission applications.

This combination of structural integrity and smooth flow characteristics makes spiral pipes a preferred choice in various industries, including oil and gas transportation, water supply, and industrial infrastructure, where reliability and efficiency are paramount.