Welded Steel Pipe and Seamless Steel Pipe Characteristics

1. The Tube Forming Process

Welded steel pipe is the pipe which is cut into strips by the strip of steel and used the custom should be made the tube type by cold-form. After then using the particular welding machinery to solder the pipe joints, but the external weld parts must be buffing bright. Under normal condition, the inside of the welded pipe has burrs, the only precision pipe should be clear away the burrs in the pipe.

The Seamless steel tube is a cylindrical steel ingot which pilled into the tube by heat treatment so that we can’t see the weld.

Above all ,we can see that seamless steel pipe is under pressure than welded pipe

2. The Pipe Different Applications

Seamless steel pipe:

Seamless steel pipe is mainly used for petroleum geological exploration tubes, petrochemical cracking tubes, boiler tubes, bearing tubes and automotive, aviation and other high -precision structural steel.

Welded steel pipe:

Welded steel pipe is the use of steel or steel bending deformation of circular, square and then welded into the shape of the surface of the pipe joints. According to the different welding methods that can be divided into electric arc pipe, high frequency or low-frequency resistance pipe, gas pipe, furnace pipe, Bondi pipe. If according to the weld shape that can be divided into longitudinal welded pipe and spiral welded pipe. The Different welded pipe can be used in different fields. For example ,furnace pipe can be used as water gas pipe, large diameter straight seam welded pipe can use in high-pressure oil and gas transmission.

According to compare between welded steel pipe and seamless pipe, we can see that seamless pipe have the following advantage.

1. Having more corrosion resistance

2. Having more high-pressure ability

3. Having safer in transport gas and oil.