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Difference between seamless steel pipe and welded steel pipe
- Mar 19, 2018 -

1. Seamless steel pipe is made of high-quality carbon steel or alloy steel, which is divided into hot-rolled and cold-rolled (pulled).

2. Welded steel pipe is made by rolling into a tube-shaped steel plate with a pair of seams or spiral seams. In the manufacturing method, it is divided into welded steel pipe for low-pressure fluid transportation, spiral welded steel pipe, direct welded steel pipe, welded pipe, etc. .

3. Seamless steel pipe can be used in various industries such as liquid pressure pipe and gas pipe.

4. The welding pipeline can be used for water pipelines, gas pipelines, heating pipelines, electrical pipelines, etc.

5. Welded steel pipes are divided into furnaces, electric welding (resistance welding) pipes and automatic arc welding pipes because of their different welding processes. Because of their different welding modes, they are divided into straight seam welded pipes and spiral welded pipes because of the shape of their ends. For the round pipe and profiled (flat) and other welded pipe.