Which type of pipe is known for being lightweight and resistant to corrosion?

Polyethylene pipe is known for being lightweight and resistant to corrosion due to its chemical structure. This type of plastic pipe is made from high-density polyethylene (HDPE), which provides a range of benefits that are particularly valuable in various construction and plumbing applications. Its lightweight nature facilitates easier handling and installation, reducing labor costs and time on the job. Additionally, polyethylene is inherently resistant to a wide range of corrosive substances, making it an excellent choice for applications involving chemicals or moisture.

Other pipe types, such as galvanized iron and cast iron, tend to be heavier and are susceptible to corrosion over time, especially if they are not properly maintained. Black ABS plastic pipe, while also lightweight and resistant to certain chemicals, does not match the overall corrosion resistance and versatility offered by polyethylene, especially in outdoor or underground applications. This makes polyethylene the optimal choice among the options provided for projects requiring a lightweight and corrosion-resistant piping solution.