Which material is commonly used for gas piping installations?

Steel is commonly used for gas piping installations due to its strength, durability, and resistance to corrosion. It can withstand the high pressures associated with gas distribution and is able to endure outdoor conditions, such as exposure to weather, without degrading. Additionally, steel piping is capable of handling the demands of both residential and commercial gas systems, making it a reliable choice for professionals in the gas fitting industry.

While plastic, wood, and copper are materials that may be used in certain applications, they do not have the same level of durability or safety in high-pressure, high-temperature environments as steel does. Plastic may be used in some specific situations, such as for underground gas piping, but it is not typically used for above-ground installations due to its susceptibility to damage and environmental factors. Wood is generally not a permitted material for gas piping due to its flammable nature. Copper can be used for gas distribution, but it is more commonly associated with plumbing applications rather than gas lines. Thus, steel remains the preferred choice for its overall performance and reliability in gas piping systems.