The differences between spiral steel pipes and seamless steel pipes
Release time:
May 21,2025
The main differences between seamless steel pipes and spiral steel pipes are as follows: Firstly, their manufacturing processes are different. Seamless steel pipes are directly made through processes such as piercing and rolling, without welds. Spiral steel pipes are made by rolling and welding steel strips and have obvious weld seams. Secondly, in terms of performance, seamless steel pipes, due to the absence of welds, usually have better pressure resistance and sealing performance. The welds of spiral steel pipes may affect their application in some high-pressure and high-precision requirements. Furthermore, in terms of price, the production cost of seamless steel pipes is relatively high, and their price is usually higher than that of spiral steel pipes. In addition, in terms of application fields, seamless steel pipes are often used in high-pressure, high-temperature, and high-precision fluid transportation and mechanical manufacturing, while spiral steel pipes are widely applied in general transportation fields such as oil, natural gas, and water supply and drainage.
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The differences between spiral steel pipes and seamless steel pipes
Seamless steel pipes are preferred for high pressure and high temperature, while spiral steel pipes are given priority for medium and low pressure or large diameter demands.
Flange connection mode and process flow
Flange connection methods can generally be divided into five types: flat welding, butt welding, socket welding, loose sleeve, thread.
Points to note in the use of the head
Measure the outer perimeter of the head. If you need to process the cylinder, please ask the company for the size of the intended outer perimeter.

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