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Product Description
Galvanized sheet refers to a layer of metal zinc coated on the surface of the steel sheet, which is called galvanized sheet. Galvanized steel sheets are often used to prevent corrosion on the surface of steel sheets and prolong their service life. Mainly used in construction, light industry, automobile, agriculture, animal husbandry, fishery, commerce and other industries.
Product name | Galvanized steel sheet |
Type | Galvanized steel sheet; hot-dip galvanized steel sheet; cold galvanized steel sheet; electro-galvanized steel sheet; galvanized pattern sheet; single-sided galvanized steel sheet; |
Grade | Q215A; Q215B; Q235A; Q235B |
Standard | GB/T3091-2015; GB/T13793-2016; GB/T21835-2008 |
Spangle | Large spangle, small spangle, sequins, zero sequins |
surface treatment | Chromated / galvanized/oiled/annealed |
Thickness/Length/Width | Production/cutting according to customer requirements |
Zinc layer | According to customer requirements |
Export packaging | Standard export packaging, also can be packaged according to customer requirements. |
Galvanized steel sheets can be classified into the following categories based on their production and processing methods:
① Hot-dip galvanized steel sheet – The thin steel plate is immersed in molten zinc, forming a layer of zinc on its surface. Currently, continuous galvanizing is the main production method, where coiled steel is continuously dipped into a molten zinc bath to produce galvanized steel sheets.
② Alloyed galvanized steel sheet – Produced by the hot-dip method but immediately heated to about 500℃ after leaving the zinc bath, creating a zinc–iron alloy coating. This type offers excellent paint adhesion and weldability.
③ Electro-galvanized steel sheet – Manufactured by electroplating, it provides good workability. However, its coating is thinner and offers less corrosion resistance compared with hot-dip galvanized sheets.
④ Single-sided and double-sided galvanized steel sheet – Single-sided galvanized sheets are coated with zinc on only one surface, making them more adaptable in welding, painting, rust prevention, and processing compared to double-sided sheets. To address the drawback of having one uncoated side, double-sided differential galvanized sheets are produced with a thinner zinc layer on the reverse side.
⑤ Alloy or composite galvanized steel sheet – Created by combining zinc with other metals such as aluminum, lead, or by producing composite-coated steel. These sheets exhibit not only superior anti-rust performance but also excellent coating properties.
Beyond these five types, additional variations include color-coated galvanized sheets, printed galvanized sheets, and PVC-laminated galvanized sheets. Nevertheless, hot-dip galvanized steel sheets remain the most widely used.
