Black round tube/ hollow section tube

A round tube is a steel material that is open at both ends and has a hollow concentric section with a large ratio of its length to its periphery. It can be used in pipelines, thermal equipment, machinery industry, petroleum geological drilling, containers, chemical industry and special purposes.

Black Welded Pipe is a welded pipe with no galvanized surface, so it appears black. Black welded pipes are commonly used in areas such as water supply, natural gas, heating and drainage pipes. Compared with galvanized pipes, the price of black welded pipes is lower, but its corrosion resistance and durability are poor, and it is susceptible to corrosion and rust.widely used in petroleum, chemical, natural gas, construction and other industries. Therefore, regular inspection and maintenance are required during use to ensure the safety and reliability of the pipeline.