1. The material is the same, but the purpose is different, so there is no question of who is better.
2. Spiral welded pipe
refers to a steel pipe with seams on the surface that is welded after bending and deforming a steel strip or steel plate into a circular, square, or another shape. According to different welding methods, it can be divided into arc welded pipes, high-frequency or low-frequency resistance welded pipes, gas welded pipes, furnace welded pipes, Bondi pipes, etc. According to the shape of the weld, it can be divided into straight seam welded pipe and spiral welded pipe. Electric welded steel pipes are used in oil drilling and machinery manufacturing, etc. Furnace welded pipes can be used as water gas pipes, etc., large-diameter straight seam welded pipes are used for high-pressure oil and gas transportation, etc.; spiral welded pipes are used for oil and gas transportation, pipe piles, bridge piers, etc. Welded steel pipes have lower costs and higher production efficiency than seamless steel pipes.
3. Welded steel pipe refers to a steel pipe with seams on the surface that is welded after bending and deforming a steel strip or steel plate into a circular, square, or other shapes. The blanks used for welded steel pipes are steel plates or strips.