Q:What is the difference between precision rolled seamless steel pipe and ordinary steel pipe?

The precision rolled seamless steel pipe is made by hot rolling or cold rolling and other precision processing technologies. After the solid steel billet is pierced, it goes through multiple rolling and finishing processes to make the pipe wall uniform, with high dimensional accuracy and good surface finish.
Ordinary steel pipes are usually produced by welding or simple extrusion molding. The production process is relatively simple, and the precision and surface quality are not as good as those of precision-rolled seamless steel pipes.

The precision rolled seamless steel pipe has excellent mechanical properties, such as high strength, high toughness, good fatigue resistance and high pressure resistance. This is because its internal structure is uniform, without defects such as welds, and it can better withstand various stresses and working conditions. The production process of the finished rolled tube can produce dimensional equipment and high-precision dimensions below 0.1 mm. The finished rolled tube has a smooth surface and high dimensional accuracy.
Due to the presence of welds, the mechanical properties of ordinary steel pipes are relatively poor, especially when subjected to high pressure, high temperature, or alternating loads; they are prone to problems such as cracks and leakage. Ordinary rolled tube products may have large dimensional errors.

Time：23/09/2025 10:54:51