Thermal power plants

API 5L is an industry standard for steel pipes that transfer oil, gas and water across long distances. It comes in a variety of grades, from GR.

Casing is a large-diameter pipe that serves as the structural retainer for the walls of oil and gas wells, or well bore.

20MnG steel pipe is a type of steel pipe commonly used in high temperature and high pressure applications, commonly used in boilers, heat exchangers and other high temperature and high pressure equipment.

The hot expanding steel pipe is hot expanded seamless pipes, which is relatively low density but the contraction of the strong steel pipe (seamless pipe) can be referred to as thermal expansion.