Definition of Welded Steel Pipe 

Circular or square carbon steel pipe is formed by bending steel strip and steel plate and welding process, which is called welded steel pipe according to its definition.

Catagory

Generally, welded steel pipe can be divided into two categories, such as resistance welded steel pipe (ERW) and spiral welded steel pipe. In addition, according to different welding methods, it can be divided into arc welded pipe, high-frequency or low-frequency resistance welded pipe . 

Advantages of welded steel pipe

Welded steel pipe can improve material utilization, simplify manufacturing process, and save steel and processing time. It can be processed into welding, bending and flanging.

Welded steel pipe has high precision, uniform wall thickness and high brightness of internal and external surfaces.

Since the weight of welded pipe is only 1 / 5 of that of square steel, it is lighter.

Welded steel pipe has the characteristics of corrosion resistance, acid resistance, alkali resistance, salt resistance, atmospheric environment corrosion resistance, impact resistance and high temperature resistance.

Application of welded steel pipe

Welded steel pipes are widely used in compressor stations, power plants, oil refineries, natural gas transmission, steam and steam transmission.

In addition, it is also widely used in the manufacture of oil drill pipes, automobile transmission shafts, bicycle frames, steel scaffolds for construction and other structural and mechanical parts.

Size of Welded Pipe

OD 1/4"-40"

WT: Sch10-Sch80 ( 1.5mm-60mm) 

Length: 2m-14m