NEWS

While stainless steel is corrosion resistant, that does not mean that stainless steel is completely rust proof, nor will it ever rust. It is important to remember that chromium, an important component of any stainless steel, combines with oxygen and forms a thin layer that serves as a protective barrier against a wide array of corrosive elements. Surface rust can appear when chlorides, like salts, acids and seawater, attack and destroy this chromium-oxide film quicker than it can repair itself.

Additionally, there are a handful of reasons why stainless steel may rust. If a stainless steel comes into contact and rubs against the surface of ordinary carbon steel or iron, surface rust may occur. Also, the welding process may cause rust. External contamination, in the form of harsh chemicals or less-than-ideal fabrication practices, may also cause surface rust.

There are a handful of chemical cleaning agents that will successfully remove free iron and most other contaminants, thereby keeping surface rust to a minimum. It is always important to clean and/or wipe down stainless steel to optimize corrosion resistance. Of course, there are numerous other after-market processes that are often used to protect stainless steel.

Finally, it is critical to highlight the fact that surface rust on stainless steel, albeit unsightly and ugly, should not impact the functionality of stainless steel. Again, the presence of chromium and its ability to form a protective layer, even under a rust spot, will prevent further corrosion. As briefly mentioned above, there are countless options for purchasers of stainless steel to pursue should they want to make sure that no surface rust forms on stainless steel surfaces.