Spiral welded pipes are made by spirally curling steel plates, while straight seam welded pipes are made by folding steel plates at a certain angle and then forming and welding them. The difference between the two manufacturing processes determines that the appearance and structure of the two are also different. Spiral welded pipes have a spiral shape and a smooth surface, while straight seam welded pipes have a straight cylindrical shape and a smooth surface.
Due to different manufacturing processes, the production cost of spiral welded pipes is higher. Because the manufacturing process of spiral steel pipes requires high-cost production equipment such as large steel plate curling machines and automatic welding equipment. Straight seam welded pipes only require simple bending equipment and welding equipment to produce, and the production cost is relatively low.
Spiral welded pipes are usually used in large-scale gas transmission, oil transportation, water conservancy and other projects because of their high strength, ability to withstand large pressures, and good thermal insulation properties. Straight seam welded pipes are suitable for some small-diameter, low-pressure fluid transportation projects, such as water supply, gas supply, communication cables, etc.
From the perspective of production cost and applicable scenarios, straight seam steel pipes are more economical and practical than spiral steel pipes, but spiral steel pipes are more widely used in some large-scale engineering projects because of their high strength, corrosion resistance, and high reliability. In general, both types of steel pipes have their own advantages and disadvantages, and the specific use scenarios need to be selected according to actual needs.
This article conducts a detailed analysis and comparison of spiral steel pipes and straight seam steel pipes, and summarizes the differences between the two and their advantages and disadvantages. I hope this article can help you better understand the characteristics of the two steel pipes so that you can make the right choice in actual production.
