The common standards of spiral steel pipes are generally divided into multiple standards. Generally, low -voltage fluid conveying with spiral seam high -frequency welding steel pipes are scrolled with hot -rolled steel tubes. High -frequency welding steel pipe for low -voltage fluid transportation.
Quality resolution of bridge spiral steel pipes
The hot -rolled tape is rolled as a tube blank
The pile is used as a tube of the hot steel band with a spiral welded steel pipe. It is often made of temperature and spiral. It is made of double -sided arc welding or high -frequency welding. Essence
Welding with high frequency welding method
Press the fluid transport, and use the spiral seam buried arc welding steel pipe, which is mainly used to transport oil and natural gas pipelines. For underwriting fluid conveyor, a spiral seam high -frequency welding steel pipe is welded with high -frequency welding method, and the spiral seam high -frequency welding steel pipe used for pressure transport is used for pressure.
Strong pressure, good plasticity
The steel pipe has strong pressure and good plasticity, which is convenient for welding and processing. In order to extend the service life of the pipeline, the anti -corrosion construction of pipes has become a process in the process of pipeline production.
Anti -corrosion ability is relatively strong
The anti -corrosion capacity of the spiral steel pipe is relatively strong. It is suitable for the use of anticorrosive raw materials, that is, strengthen the anticorrosive ability of the pipeline, and will not cause pollution to drink water. Sewage has not high requirements for anti -corrosion. Choosing cement mortar anticorrosion can also extend the life of the pipeline. The quality of the spiral steel pipe must meet the requirements of use.
