Why isn't iron usually recommended in the construction of steam pipes and boilers?
Most water systems have dissolved minerals and oxygen. When turned to steam, these dissolved things react with iron to form oxides, and the pipe deterioates.
Iron is typically not recommended in the construction of steam pipes and boilers due to its susceptibility to a phenomenon called corrosion. When exposed to high-temperature steam, iron can react with the water or steam to form iron oxide, commonly known as rust. This corrosion process can weaken the structure of the metal over time, leading to leakage, system failure, and potential safety risks.
To mitigate this issue, alternative materials such as steel, stainless steel, and cast iron are often used in the construction of steam pipes and boilers. These materials have higher resistance to corrosion and can withstand the high temperatures and pressures associated with steam systems. Additionally, protective coatings and treatments can be applied to the inner surfaces of the pipes and boilers to further enhance their corrosion resistance.
In summary, iron is not recommended for steam pipes and boilers due to its susceptibility to corrosion, which can compromise the integrity and safety of the system.