company news about What is the difference between seamless and welded stainless steel pipe?

What is the difference between seamless and welded stainless steel pipe?

There are 5 differences between seamless and welded stainless steel pipes:
1. Manufacturing process
Stainless steel welded pipe is made of steel plate or steel strip through a series of construction welding. According to different welding methods, it can be divided into straight seam welded pipe and spiral welded pipe. The seamless steel pipe is made of round steel perforated as raw material, and then produced by cold rolling, hot extrusion and other methods.
2. Steel pipe appearance
The precision of stainless steel welded pipe is relatively high, the wall thickness is more uniform, and the brightness of the inner and outer surfaces of the pipe is also relatively high, and it can be customized in any size. The precision of seamless steel pipe is relatively low, the wall thickness is uneven, the brightness will be relatively low, and the cost of customization will be higher.
3. Welding performance
Stainless steel welded pipe contains silicon, manganese, oxygen and other components that are conducive to welding during welding, which can penetrate the entire weld. However, there are no chemical materials that are conducive to welding in seamless steel pipes, which are prone to instability during welding and increase the difficulty of welding.
4. Pipe strength
The strength of the pipe depends on the composition of the alloy. Since the steel contained in it is the same and the heat treatment method is the same, the strength of the stainless steel welded pipe and the seamless steel pipe is the same.
5. Application difference
The surface effect of the stainless steel welded pipe is very good, and it can be used for prop pipes, or product pipes, etc., for the transmission of gas, air, oil, etc. The seamless steel pipe has good corrosion resistance, pressure bearing and high temperature resistance, and can be used in large-scale equipment, or in engineering to transmit fluid pipelines, and can also be used in nuclear power plants.
EDEST STEEL is a large-scale stainless steel manufacturer, exporting seamless stainless steel pipes, stainless steel square pipes, stainless steel rectangular pipes to all over the world, and is a global high-quality supplier of industrial stainless steel.