Is cold galvanized wire easy to rust?

First of all, the cold galvanized wire itself has a layer of zinc, this layer of zinc can resist most of the corrosion of chemical corrosion, so under normal circumstances, cold galvanized wire is not easy to rust. Zinc has a high electronegativity and anode activity, when the coating is damaged, zinc will be preferentially oxidized, thereby protecting the steel wire from corrosion. This spontaneous corrosion protection is called “galvanizing protection”. Therefore, cold galvanized wire under normal conditions of use, its corrosion resistance is better.

However, cold galvanized wire in special environments or under specific conditions, rust may still occur. First of all, if the cold galvanized wire is mechanically damaged or scratched, it will cause damage to the zinc layer, which will expose the unprotected steel wire. In a humid environment, water and oxygen will chemically react with the steel wire, causing the steel wire to rust. In addition, if the cold galvanized wire is exposed to wet, corrosive media or high temperature environment for a long time, it will also accelerate the corrosion of the zinc layer, resulting in rust.
In addition, cold galvanized wire in the transportation and storage process also need to pay attention to prevent rust. Because in these processes, cold galvanized wire may be eroded by wet environment, moisture, chemicals, etc., resulting in damage or corrosion of the zinc layer, which leads to rust problems. Therefore, for long-term storage or long-distance transportation of cold galvanized wire, packaging, sealing and other measures need to be taken to prevent the intrusion of wet environment.
In general, cold galvanized wire is not easy to rust under normal circumstances, and its galvanized protective layer can provide better corrosion resistance. However, in special environments or under specific conditions, cold galvanized wire may still rust. Therefore, for the use and maintenance of cold galvanized wire, we need to take appropriate protection and maintenance measures according to the specific situation to extend its service life and reduce the occurrence of rust problems.