Do you know the difference between spiral steel pipe and seamless steel pipe? The production process is different. The spiral steel pipe is made by crimping and welding the strip steel. The seamless steel pipe is made by perforating the steel billet and there is no welding point on the square pipe. The use of spiral steel pipe is not as high as the pressure of the seamless square tube, the price is different, the production capacity of the seamless square tube is low, the production capacity of the spiral steel pipe is high, and the two square tubes of the same type are much more expensive. If it is not the pressure requirement is not high or the spiral steel pipe is more economical.
Analysts believe that the acceleration of global economic growth recovery is one of the important factors driving the rebound of the square tube sector. Previously, the short-selling sentiment of the other stocks in the US stock market was strong, but recently the market sentiment improved with the better-than-expected economic data released by the US, Europe and China. Spiral welded steel pipe, also called spiral welded pipe, is a steel pipe made by welding a steel plate or a strip steel after being crimped. Spiral welded steel pipe has simple production process, high production efficiency, many varieties and specifications, and less equipment, but the general strength is lower than that of seamless steel pipe.
Features of spiral tube: Straight seam welded pipe has simple production process, high production efficiency, low cost and rapid development. The strength of the spiral welded pipe is generally higher than that of the straight welded pipe. It is possible to produce a welded pipe with a large diameter by using a narrow blank, and it is also possible to produce a welded pipe having a different pipe diameter by using a blank of the same width. However, the weld length is increased by 30 to 100% compared to a straight pipe of the same length, and the production speed is low. Therefore, most of the smaller diameter welded pipes are straight seam welded, and the large diameter welded pipes are mostly spiral welded.
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