Appliance and machines made in metals such as copper, aluminum, steel, and others are prone to corrosion when in more extended use. Because corrosion of metals is the factor that dictates useful lifespan and different metals are vulnerable in different ways, it is imperative to take action to protect all central metal heating systems against corrosion. When the machine system fails, it can be disruptive and costly. It is an advantage to understand the causes and impact of corrosion of different system metals. Things to Know About the Metals Copper Copper is a precious metal that is not easy to rust once in use. But over time, a small amount of it melts in the water system, leading to corrosion of other metals around the system. Flux residues or contaminants can be slightly innovative copper and introduce molten copper into the water system. Melted copper can plate out onto subtle steel or aluminum surfaces inside the system, usually radiators or over the heat exchang...