Which material is commonly used in the construction of boiler tubes?

The material commonly used in the construction of boiler tubes is carbon steel or alloy steel because these materials possess the strength and durability necessary to withstand high pressures and temperatures typically found in boiler systems. Carbon steel offers excellent mechanical properties, including good tensile strength, which is crucial for maintaining the integrity of the tubes under operating conditions. Additionally, alloy steels can be formulated to enhance resistance to corrosion and oxidation, further extending the lifespan and reliability of boiler tubes.

This choice aligns with industry standards where the material must support thermal efficiency and safety in boiler operation. In contrast, options like aluminum may not have the required strength at high temperatures, copper might not provide the necessary durability or the right properties for high-pressure scenarios, and plastic is not suitable due to its inability to withstand the extreme conditions present in boiler environments.