What type of pipe is required for applications that need to withstand high pressure and temperature?

Steel pipe is the appropriate choice for applications that require the ability to withstand high pressure and temperature. Steel pipes are known for their strong mechanical properties, which allow them to handle significant stress and pressure without deformation. This makes them suitable for various gas and fluid transport systems, particularly in industrial and commercial settings where safety and durability are paramount.

Steel pipe's ability to maintain integrity under high temperatures is also crucial, especially in applications like gas lines, where fluctuations in temperature can occur. Additionally, steel's resistance to external forces and impacts further enhances its reliability in demanding environments.

The other materials listed, such as ABS (Acrylonitrile Butadiene Styrene), galvanized pipe, and PVC (Polyvinyl Chloride), do not have the same capacity to endure high pressure and temperature conditions as steel. ABS and PVC are generally used for lower pressure applications and can deform or fail under excessive heat or pressure, while galvanized pipe, although stronger than PVC, still does not match the high-pressure tolerance of steel. This makes steel the correct and most suitable choice for such applications.