What exactly is cold-rolled precision seamless steel pipe?

Cold-drawn or cold-rolled precision seamless steel pipe (GB3639-83) is a kind of cold-drawn or cold-rolled precision seamless steel pipe with high dimensional accuracy and good surface finish, which is used in mechanical structures and hydraulic equipment. Using precision seamless steel tube to manufacture mechanical structure or hydraulic equipment can greatly save processing time, improve material utilization and improve product quality.

Precision steel pipe is a kind of high-precision steel pipe material after cold drawing or cold rolling. Because there is no oxide layer on the inner and outer walls of precision steel pipe, it does not leak under high pressure, has high precision and high smoothness, and does not deform during cold bending, flaring and flattening. It is mainly used to produce pneumatic or hydraulic components, such as cylinders or oil cylinders, which can be seamless pipes or welded pipes (after cold rolling).

The main chemical components of precision steel pipe are iron, iron, carbon, silicon, manganese, sulfur, phosphorus and chromium.