A series of cold rolled tubes have the following characteristics:
1. The mechanical and physical properties of cold-rolled fine tubes are superior.
2. The original tube wall thickness deviation of cold rolling mill has large correction ability, accurate geometry and low surface roughness.
3. Through large deformation, it can reach 70% - 85%.
4. Cold-rolled production pipelines can significantly reduce intermediate steps, such as heat treatment, pickling, start, straightening and cutting, and reduce the consumption of metal materials, fuels, electricity and other auxiliary materials and people.
5. Production of cold-rolled thin-walled and ultra-thin-walled pipes without scratches on the inner and outer surfaces.
6. Effectively rolling all kinds of metal pipes with high alloy and poor ductility.