We all know that there are many kinds of different welded steel pipes in the world. The welded steel pipes can be divided into many types according to its different material properties, technology of manufacturing and practical uses. The most commonly used welded steel pipes are the ordinary pipes, the ordinary carbon steel wire casing, the pile with SSAW steel pipe, the LSAW steel pipe and ERW steel pipe.
The ordinary pipes, which are generally call the black pipes, are usually used to transport some low pressure fluid such as the water, the coal gas, the air, the oil and the heating steam. The ordinary pipes can be divided into two types, the ordinary steel pipes and the thickening steel pipes, according to the thickness of the ordinary pipes.
The ordinary carbon steel wire casings are usually used to protect the electric wires. They have been widely used in the industrial and civil construction and the installation of machinery and equipment and other electric installation works.
The welding lines of the LSAW steel pipe are parallel to the steel pipes. And there are many types of this welded steel pipes such as the metric welded steel pipes, the welded thin-walled pipes, the transformer cooling tubing and so on.
The SSAW steel pipe is often used to transport the pressurized fluid. It use the hot-rolled steel strip coils as the tube blank, and it was shaped at room temperature. SSAW steel pipe usually has a good plasticity and is easily to be welded and processed. SSAW steel pipe can both be used to transport the oil and natural gas as well as some low pressure fluid such as the water, the coal gas, the air and the heating steam.
