Application Fields of Welded Steel Pipe

Welded steel pipe is a steel pipe made of steel plate or strip steel after crimping and welding. Welded steel pipe has simple production process, high production efficiency, many varieties and specifications, and less equipment investment, but its general strength is lower than that of seamless pipe. 

Since the 1930s, with the rapid development of continuous rolling production of high-quality strip steel and the advancement of welding and inspection technology, the quality of welds has been continuously improved, and the varieties and specifications of welded steel pipes have increased day by day, and replaced seamless steel pipes in more and more fields. Seam steel pipe. Welded steel pipes are divided into straight seam welded pipes (ERW/LSAW) and spiral welded pipes (SSAW) according to the form of the weld.

Application fields of welded steel pipe:

1. Welded steel pipes are widely used in the structural parts of bicycles, motorcycles, tractors, automobiles and large buses. The pipe has a large forging coefficient, strong bending and torsion resistance, smooth surface and light weight. Variable cross-section tubes are used to make collector poles on trolleybuses, because this high-strength welded steel tube has good toughness and elasticity.

 
2. Welded steel pipes are widely used in instruments, telecommunication equipment and medical equipment to manufacture brackets, guide rails, and frames of boxes and cabinets, so that they have the characteristics of light weight, beautiful appearance, novel style, and easy handling and portability. Surgical operations directly use the plum-blossom needle high-strength welded steel pipe as the bone-setting material. The waveguide for UHF radio communication is also made of special high-strength welded steel pipe with precise dimensions.

3. On various thermal equipment, mechanical equipment or radio receivers or transmitters, high-strength welded steel pipes with blades and ribs are widely used to manufacture radiators or heat exchangers. The effect can effectively reduce the temperature of equipment or components, so that it can maintain normal operation for a long time. High-strength welded steel pipes are used as heat dissipation pipes for heat exchangers, which have good heat transfer effects and can recover a large amount of waste heat, improve thermal efficiency, and save energy. 

4. In the manufacture of sporting goods and equipment, high-strength welded steel pipes are constantly being used to replace valuable wood products. The manufacturing method of these devices is simple, the production is convenient, the quality is good, and they are durable.
 

5. In the manufacture of equipment, welded steel pipe bellows are continuously used to manufacture shock-proof devices on various machinery and rockets to reduce vibration, reduce noise, and ensure the normal operation of equipment. According to the section characteristics, welded steel pipes can be divided into three categories: equal-wall welded steel pipes, different-wall welded steel pipes and variable-section pipes.

Tips: In the application of submarine oil and gas pipeline engineering, oil drills and petrochemical companies use welded pipes for gasoline, kerosene, diesel and other pipelines. ERW welded pipes are safe and economical.