1. Corrosion resistance and heat resistance are lower than ordinary steel pipes.
2. The outer diameter of cold drawn or cold rolled precision seamless pipe can be more than 5mm.
3. The surface is smooth, the wall thickness is uniform, and there is no oxide layer; Good machining performance, high precision, can do small batch production.
4. The main feature of hot rolled seamless steel pipe is smaller outer diameter.
5. The smoothness of inner and outer walls of precision bright tubes is better than that of ordinary steel tubes, and small pieces can be made with high precision.
6. The specifications of welded steel pipes for general purposes range from 3m to 12m.
7. Large diameter round steel can be used to manufacture pipes and mechanical parts, such as oil drill pipes; It can also be used to make reinforced concrete components and plate alloy pipes for bridges and building structures. According to the production process, they can be divided into seamless pipes and welded pipes.
