The difference between straight welded pipe and spiral welded pipe is a kind of welded steel pipe, which is widely used in national production and construction. There are many differences between straight welded pipe and spiral welded pipe because of their different production technology. below, the difference between straight welded pipe and spiral welded pipe is discussed in detail.

The production process of straight seam welded pipe is relatively simple. The main production processes are high frequency welded straight seam welded pipe and submerged arc welded pipe. The production efficiency of straight welded pipe is high, the cost is low, and the development is rapid. The strength of spiral welded pipe is generally higher than that of straight welded pipe. The main production process is submerged arc welding. Spiral welded pipe can produce welded pipe with different pipe diameter with the same width billet, and narrow billet can also be used to produce welded pipe with larger pipe diameter. However, compared with the straight welded pipe of the same length, the weld length increases by 30% and 100%, and the production speed is lower. Therefore, most of the smaller diameter welded pipes are welded by straight seam welding, and most of the large diameter welded pipes are welded by spiral welding. When producing large diameter straight seam welded pipe in the industry, T-shaped welding technology will be used, that is, a short section of straight seam welded pipe will be docked again, connected into the length in line with the needs of the project, the probability of defects in T-shaped straight seam welded pipe will also be greatly improved, and the welding residual stress at the T-weld joint is large, and the weld metal is often in a triaxial stress state, which increases the possibility of cracks. Jinjiang Da Changjiang Steel Pipe Industry Co., Ltd. specializes in the production and sales of hot-dip galvanized spiral steel pipe Fujian seamless pipe, Fujian spiral pipe and frame pipe. Welcome to inquire: 86-0595 / 82151777