Difference of Staight seam steel pipe and Spiral steel pipe

Straight seam steel pipe and spiral steel pipe is a kind of welded steel pipe, they are widely used in the construction of national product, straight seam steel pipe and spiral steel pipe due to the different production process has many differences, therefore, the following specific issues about the difference between straight seam steel pipe and spiral steel pipe. Straight seam welded pipe production technology is relatively simple, the main production process with high frequency straight seam welded steel tubes and submerged arc welding and straight seam steel pipe, straight seam pipe production with high efficiency, low cost, rapid development. The strength of the spiral welded pipe is generally higher than straight seam welded pipe, the main production process is submerged arc welding, spiral steel pipe can use the same width of different diameter welded pipe billet production, can also use a narrower billet production of larger diameter welded pipe. But compared with the same length of straight seam pipe, weld length by 30 ~ 100%, and the production speed is low.