Why does brass screw rust You know what?

People are stunned to find that there’s brown rust on the floor of the brass tube. Of their cognition, “brass screw shouldn’t be rusted, rust shouldn’t be copper, it might be metal.“And right here I’m going to tell you that this can be a mistake.

How could the brass screw rust?

(1)Brass screw surface with deposits of other metal elements containing dust or heterogeneous metal particles attached to the humid air, the condensate between the attachment and brass, the two connected into a micro-cell, triggering the electrochemical reaction, Protective film damaged, called electrochemical corrosion.

(2)The brass screw surface adheres to organic juices (such as melons, soups, sputum etc.), and in the case of water oxygen, organic acids are formed, and the organic acids are used to corrode the metal surface for a long time.

(3) The brass surface adhered to acid, alkali, and salt substances (such as alkaline water and lime-water spray), which caused local erosion.

(4) In the polluted air (such as the atmosphere containing a large amount of sulfide, oxidized carbon and nitrous oxide), the condensation water will form the liquid point of sulfuric acid, nitric acid and acetic acid, causing chemical corrosion.

If your brass screws are placed above, then the brass screw will be corroded. Its surface will appear with brown rust.