Mannesmann light pipe is a type of seamless steel pipe that is used in various industries such as oil, gas, petrochemical, and construction. "Manisman" refers to the method of producing these pipes, in which hot or cold steel is formed into a pipe without any seams. Due to their lower weight compared to other types of Manisman, lightweight Manisman pipes are used in applications that do not require high resistance, such as construction piping, irrigation systems, and some industrial applications. These pipes are usually specified in terms of internal and external diameter, wall thickness and weight. Mannesmann light pipe is made of carbon or alloy steel and can be shaped by various methods such as welding, cutting, bending, etc. These pipes can also be coated with various coatings to resist corrosion or other environmental conditions. Among the other advantages of lightweight Mannesmann pipes, we can mention high durability and longevity, good resistance to internal and external pressures, and relative flexibility against temperature changes. Due to their seamless structure, these pipes greatly reduce the possibility of leakage and are suitable for transporting liquids and gases in various conditions. In addition, lightweight Mannesmann pipes are easier to transport and install due to their lower weight than other types of steel pipes. These features make them very popular in construction and industrial projects that require speed and flexibility in installation. In the market, lightweight Mannesmann pipes are widely available in different sizes and thicknesses, which allows them to be suitable for different applications. Also, there are several standards for the production of these types of pipes that guarantee their quality and safety. Due to these advantages, Mannesmann light tubes are used in various industries such as construction, mechanical facilities, automotive industry, and even in the manufacture of precision mechanical parts. This flexibility in application makes Mannesmann light tubes one of the most common and popular types of tubes on the market.