The stainless steel hinge is one of the hinges. Stainless steel is one of many materials. The elements in the stainless steel will produce an oxide film after contact with the atmosphere. This oxide film can prevent the infiltration of oxygen atoms, so it has corrosion resistance. . From this we can deduce that when the surface of the stainless steel hinge is corroded, this layer of film is naturally useless, so the ability to prevent corrosion is no longer, and then rust.
K55-Chassis hinge
Using SUS304 material
Flat hinge, opening angle 270 °
Uses: wooden gate, tool box, server cabinet, communication equipment