The thickness of the zinc layer and a variety of galvanizing technology are the most important parameters on which the duration of operation of metal structures depends. Our company "EZI" offers high-quality galvanizing of metal products of different classes.
Why do you need to galvanize
Zinc coating is a thin layer that is applied to the surface of metal structures to increase durability and resist corrosion processes. It is on how strong is the layer of this material will depend on the period of use of metal. The quality of galvanizing can be determined by coating method and layer thickness. Below you will find out what are the classes of galvanizing.
What are the classes
Depending on the amount deposited on the zinc metal, there are the following categories:
- Elevated class (denoted by the letter "P"). The amount applied to the two sides of the zinc within 570-855 g/m2, the thickness in the frames of 40-60 microns. This is the highest class of galvanizing, which guarantees optimal corrosion resistance.
- Class 1 - the mass of the zinc layer on both sides within 258-570 g per m2, the thickness level of 18 to 40 microns.
- Class 2 - zinc is applied in a volume of 142 to 258 g per m2, the thickness of the layer of the deposited component is within 10-18 microns.
From the class of galvanizing depends on the scope of metal. The first and higher class operate in adverse climatic conditions, for example, on the territories of the coasts, in areas where often there are negative weather events (dust storms, snowfalls, etc.). Such metal structures are highly resistant to aggressive external factors. This directly affects their price.
Galvanized steel structures of the second class are used in construction works because of their availability. At selection and purchase of the metal rolling processed by a galvanizing method, and also directly the choice of technology of protection of a metalwork it is not necessary to be guided only by cost. A competent solution to this issue will allow in the future to save money on the restoration of damaged metal structures or the purchase of new ones. Our company "EZI" offers processing of metal products by innovative methods of galvanizing to counteract any negative impact of the environment.