Is the galvanized plate a steel plate or an iron plate?

From the perspective of metallurgy, there is a misconception here. People who know metallurgy will not ask this question in the future. This is a misconception that people coexist with.         In metallurgy, we refer to iron. Pure iron is not actually available in industrial production. Iron is a metallic element with very bright properties. It is quickly oxidized in air at room temperature. This is just like some people have never seen real "aluminum". The aluminum elements exposed to the air are immediately oxidized and converted into iron oxide. Therefore, under normal conditions, what people see is only the oxidation covering the surface of the aluminum. Iron and real aluminum are not seen by people. The specificity of containing iron ranks second to aluminum. Therefore, it is actually impossible to find it using China Railway Group. At the same time, pure iron is very soft or its physical properties are not very good, that is, it cannot be used without oxidation. People usually use iron and carbon-aluminum alloys, and iron-carbon-aluminum alloys are called "steel" in metallurgy. Therefore, from the perspective of academic research, iron is called iron if its carbon moisture content is less than 0.008%. Coke is mostly used when making iron, so it is basically impossible to burn all the carbon in this type of production process. Therefore, it is said that iron with a carbon moisture content of less than 0.008% cannot be obtained by ordinary steelmaking methods.       Galvanized sheet = cold-rolled steel sheet (or hot-rolled steel sheet) + galvanized surface. The difference between steel plate and iron plate is actually the difference between steel and iron. What is steel? What is iron? As stated above, pure iron does not exist. Iron is widely found in nature in iron ore, where it is mixed with carbon, oxygen and manganese.