Steel is the most commonly used metal material in the construction industry. Steel pipes are divided into seamless steel pipes and welded steel pipes, but have you heard of spiral welded steel pipes?

This article will let Baowu popularize the little knowledge of spiral welded steel pipe with you.

Spiral welded steel pipe refers to a steel pipe with seams on the surface that is welded by bending and deforming a steel strip or steel plate into a round, square or other shape. According to different welding methods, it can be divided into arc welded pipe, high frequency or low frequency resistance welded pipe, gas welded pipe, furnace welded pipe, Bondi pipe, etc. According to the shape of the weld, it can be divided into straight seam welded pipe and spiral welded pipe.

The production process of straight seam welded pipe is simple, the production efficiency is high, the cost is low, and the development is fast. The strength of the spiral welded pipe is generally higher than that of the straight seam welded pipe. But compared to the same length of straight seam pipe, the length of the weld is increased by 30-100%, and the production speed is lower. Therefore, most of the welded pipes with smaller diameters use straight seam welding, and most of the welded pipes with large diameters use spiral welding.

Some of the more common materials for spiral welded steel pipes are Q235A, Q23b, 0Cr13, 1Cr17, 00Cr19Ni11, 1Cr18Ni9, 0Cr18Ni11Nb, Q345, L245, L290, X42, X46, X70, X80. Different materials can be selected according to different needs.

Spiral welded steel pipes are mainly used in water engineering, petrochemical industry, chemical industry, electric power industry, agricultural irrigation and urban construction in China. For liquid transportation: water supply, drainage. For gas transportation: gas, steam, liquefied petroleum gas. For structure: for piling pipe, for bridge; for wharf, road, building structure, etc.

The above is the relevant knowledge of spiral welded steel pipe. If you want to know more, you can pay attention to Baowu at any time.