4 Ways Might Make Metal Balls Rust

Will stainless steel be rust? Many customers might have this question in mind. As a metal ball supplier, we would say the answer is yes. Why stainless steel be rust? What will make it rust? Here, we would like to share with you the knowlege of 4 ways that might make stainless steel spheres rust.

metal balls stainless steel sphere
Stainless Steel Balls

Stainless steel relies on a very thin, strong, dense and stable chromium-rich oxide film (protective film) formed on its surface to prevent oxygen atoms from continuing to penetrate and continue to oxidize, thereby obtaining the ability to resist corrosion. Once this film is continuously destroyed for some reason, oxygen atoms in the air or liquid will continuously infiltrate or iron atoms in the metal will continue to separate out, forming loose iron oxide, and the metal surface will continue to be rusted. There are many forms of damage to this surface film, and the common ones are as follows:

Electrochemical corrosion

The surface of stainless steel balls has accumulated dust containing other metal elements or attachments of heterogeneous metal particles. In humid air, the condensed water between the attachments and stainless steel connects the two as a micro battery, which initiates an electrochemical reaction and protects the membrane from being damaged, which is called electrochemical corrosion.

Corrosion of organic acids on metal surfaces

The surface of stainless steel spheres adheres to the organic juice (such as melon, vegetable, noodle soup, sputum, etc.), which forms organic acid in the presence of water and oxygen, and the organic acid will corrode the metal surface for a long time.

Local corrosion

The surface of metal balls adheres to containing acids, alkalis, and salt substances (such as alkaline water and lime water splashing on the decoration walls), causing local corrosion.

Chemical corrosion

In polluted air (such as the atmosphere containing a large amount of sulfide, carbon oxide, and nitrogen oxide), it will form sulfuric acid, nitric acid, and acetic acid liquid spots when encountering condensed water, causing chemical corrosion.

As for corrosion issue, of course there are methods to clean it. If you would like to get this, you might be interested in this. (4 ways to clean stainless steel sphere)