Is galvanized steel plate or iron plate?
In metallurgy, iron, pure iron, is not available in actual industrial production. Iron is a very active chemical element, which oxidizes rapidly in the air at room temperature. This is like some people say we have not seen the real 'aluminum' exposure to aluminum elements in the air immediately oxidized alumina, so we see in the normal is covered on the surface of alumina aluminum complex, real aluminum and we do not see. The activity of iron is second only to that of aluminum.
From the point of view of metal science, there is a misunderstanding here. If you want to be familiar with the metal science, you will not ask this question. This is also a misunderstanding that many people coexist.
Therefore, iron does not exist in practical applications. Another pure iron is very soft, or mechanical performance is not good, that is, if it does not oxidize, it can not be used. And we usually use the most is the iron carbon alloy, and the iron carbon alloy called "steel" in the metal, so from the academic angle to the iron carbon content is less than 0.008% that of iron, steel when the majority of coke, so the production process to burn the whole carbon is almost impossible to the. Therefore, the said carbon content is less than 0.008%, and iron can not be obtained by common iron making methods.
