What is the difference between galvanized steel sheets without zinc spangle and with zinc spangle?

Galvanized steel sheets without zinc blooms and galvanized steel sheets with zinc blooms are both protected against oxidative corrosion by immersing the steel sheet in a molten zinc solution, which coats the surface with a layer of zinc. The difference lies in the number of zinc flowers produced.

Production process

The production process for Gi zero spangle and Gi spangle galvanized steel plates are different.

The temperature of the zinc solution is higher in the molten state of zinc-free galvanized steel, so the surface of the steel coating is smoother and there is no zinc residue on the surface of the steel sheet.

In the case of galvanized steel with zinc bloom, the liquid zinc is at a lower temperature and the surface of the steel sheet has a zinc bloom residue.

Galvanized Steel Sheet In Coil
Galvanized Steel Sheet In Coil

Appearance features

Galvanized Steel Sheet In Coil

Zero spangle Gi sheet has no splatter on the surface, has a smooth appearance, a uniform galvanized layer, and has an anti-corrosion effect.

There are zinc flowers on the surface of the galvanized spangle steel sheet. The appearance is not as smooth as that of the zinc-free galvanized steel sheet, and the galvanized layer is not as uniform as that of the zinc-free galvanized steel sheet.

scenes to be used

Gi sheets zero spangle are often used in scenes with particularly strict appearance quality and appearance requirements, such as automotive exterior parts, building materials, etc.

Galvanized steel sheets with zinc patterns are often used in some situations with less stringent requirements, such as furniture, daily necessities, etc.

Regular Spangle Galvanized Steel

To sum up, the difference between zinc-free and zinc-sprayed galvanized steel sheets mainly lies in details, such as surface smoothness, uniformity of galvanized layer, appearance requirements, etc. Choosing the appropriate galvanized steel sheet material in different usage scenarios can better meet the needs of users.


Post time: Jan-29-2024