Is spiral steel pipe or straight seam steel pipe better for drainage pipe

Generally, spiral steel pipe is used for drainage pipe, and submerged arc welding is used for spiral steel pipe. Because the weld of spiral steel pipe is spiral, the pressure of the liquid it bears will be distributed on each side of the pipe to enhance the strength of the pipe. If the straight seam steel pipe is used, the general large pipes are rolled up with steel plate for straight welding, and the larger steel plate is required, which greatly increases the manufacturing difficulty, so the larger pipe diameter will use spiral steel pipe.

As for which is better, because the scope of application of the spiral steel pipe and straight seam steel pipe is not the same, there is no way to say which is better. It should be said that both are competent and have their own advantages.