3 different types of weld seam of SSAW carbon steel pipes

SSAW (Spiral Submerged Arc Welding) carbon steel pipes are extensively utilized in various construction projects, including bridge construction, real estate development, and highway billboard supports. Their versatility and strength make them a popular choice for these demanding applications.

Interestingly, there are three distinct types of spiral welded seams used in the production of SSAW carbon steel pipes.

Spiral Strip End Weld:

This type involves welding the end of a spiral steel strip. The process includes welding the steel head of the spiral strip onto the steel itself or welding the head and tail of the steel strip together. This method ensures a continuous and robust connection, crucial for the integrity and strength of the pipe.

Two Spiral Butt Weld:

In this method, two spiral cuts are linked together to form an annular weld. This involves cutting the spirals and then welding them together end-to-end. The annular weld created by this process provides a seamless and strong joint, which is essential for maintaining the structural integrity of the pipe under various stresses.

Spiral Tack Welding:

Before performing the final welding, spiral tack welding is applied. This preliminary step is crucial for fixing the butt weld edges in place. Tack welding involves applying a series of small, temporary welds to hold the components together. Once the edges are securely fixed, the final welding can be carried out to complete the process, ensuring a precise and durable seam.

Each of these welding techniques contributes to the overall strength, durability, and performance of SSAW carbon steel pipes, making them suitable for a wide range of industrial and construction applications.