Stainless steel welded pipes are created by forming a flat piece of steel into a cylindrical shape and then welding the seam. The process of welding adds strength to the pipe and allows for the creation of various shapes and sizes.
There are different methods used to weld stainless steel pipes:
- ERW (Electric Resistance Welding): In this process, the seam is heated using an electric current which generates heat through electrical resistance, and the seam is then pressed together to form a bond.
- EFW (Electric Fusion Welding): This process involves melting the base metal and adding a filler material to form the joint.
- Submerged Arc Welding (SAW): This process involves the formation of an arc between a continuously fed bare wire electrode and the workpiece. The welding area is submerged under a blanket of granular flux to protect it.