Why Galvanized steel? In some applications Galvanized steel is a good decision because of the environment in which the structure is being used. For example in extreme hot or cold environments, in water, and where chemicals are going to be present regularly. Whether you are going to build with red iron steel or galvanized steel we can price either or both so that you can make the best decision for your steel building project. What is the difference? The only difference between red iron steel and galvanized steel is the additional process that galvanized steel undergoes which is a hot dipping process that includes the addition of several layers which are zinc-iron alloy layers. This process protects the steel from corrosion under harsher than normal conditions as mentioned previously. When speaking with you steel building advisor make sure you explain what your building will be used for so that you can discuss whether or not galvanized steel is right for your project.