Stainless steel material would be easily rusted?

Stainless steel is not easy to rust, which does not mean that it will not rust. Because it is not easy to rust, people call it stainless steel. Ordinary stainless steel is made by adding about 18% chromium to iron, which means it is an alloy. In addition, there are stainless steels made of iron mixed with nickel and so on. The reason why stainless steel is less likely to rust than iron is that when a thin plate is made of stainless steel, a very strong coating will be formed on the surface to protect the interior. 

This coating is an oxide, and in fact it is also a kind of "rust", so it can be said that stainless steel is a metal that is easier to "rust" than iron, but its "rust" just acts as a protective film. effect. Similar to this is aluminum. A layer of oxide film can also be formed on the surface of aluminum, so aluminum is not easy to rust. Whether it is stainless steel or aluminum, they all have such an oxide film to protect the interior. Therefore, when washing stainless steel or aluminum products, it is best not to wipe the surface with decontamination powder, otherwise the oxide film will be damaged.

Stainless steel is just adding a small amount of chromium, and its main component is still iron, so it can definitely be sucked up. It is not stainless steel that cannot be sucked up. If the iron content exceeds a certain amount, it will still rust!