A thin steel plate is immersed in a molten zinc bath so that a layer of zinc adheres to its surface. Galvanized coil, is a thin steel plate that is immersed in a molten zinc bath so that a layer of zinc adheres to the surface. It is mainly produced by continuous galvanizing process, that is, the rolled steel plate is continuously immersed in a coating bath containing molten zinc to make a galvanized steel plate; galvanized steel alloy. This type of steel plate is also manufactured by hot dip method, but it is heated to about 500 degrees Celsius immediately after leaving the tank to form a layer of zinc-iron alloy. This type of galvanized coil has good paint adhesion and weldability.

The strength is divided into Q235, Q350, G350, G400, G450, G550, etc. The common thickness of galvanized coils can be customized from 0.15mm to 3.0mm, and the common width can be customized from 20mm to 1450mm, etc.

Galvanized steel coils are a metal material widely used in various fields such as construction, home appliances, automobiles, industry and agriculture. The main feature is that they are coated with zinc, which has good corrosion resistance, wear resistance, oxidation resistance, acid and alkali resistance, etc., which makes them play a very important role in many fields.

In the field of construction, galvanized steel coils are widely used in building structural materials, roof panels, wall panels, door and window frames, pipes, etc. The anti-corrosion properties of galvanized steel coils can effectively prolong the service life of the building, while improving the overall aesthetic appearance and durability of the building.

In the field of home appliances, galvanized steel coils are mainly used to produce casings of home appliances, refrigerators, washing machines, air conditioners and other products. Galvanized steel coils not only have a good appearance, but also prevent rust and corrosion, making the product last longer.

In the automotive field, galvanized steel coils are mainly used in automobile bodies, doors, hoods, wheels and other parts. Due to its good corrosion resistance, it can effectively prevent the car from rusting and corrosion, ensuring that the car can be used for a longer time.

(1) Spangle coating
During the normal solidification process of the zinc layer, the zinc grains grow freely to form a coating with obvious spangle morphology.
(2) Minimized spangle coating
During the solidification process of the zinc layer, the zinc grains are artificially restricted to form a spangle coating as small as possible.
(3) Spangle-free coating
A coating with no visible spangle morphology and uniform surface obtained by adjusting the chemical composition of the plating solution.
(4) Zinc-iron alloy coating
The steel strip after passing through the zinc plating tank is heat treated to form an alloy layer of zinc and iron. This coating has a dark gray appearance and no metallic luster. It is easy to powderize during the intense forming process. It is suitable for coatings that can be directly painted without further treatment except general cleaning.
(5) Differential coating
For the two sides of the galvanized steel plate, a coating with different zinc layer weight is required.
(6) Skin pass
Skin pass is a cold rolling process with a small amount of deformation on galvanized steel sheets for one or more of the following purposes.
To improve the surface appearance of galvanized steel sheets or make them suitable for decorative coatings; to temporarily minimize the slip lines (Lüders lines) or folds produced during processing, etc.

In the industrial and agricultural fields, galvanized steel coils are widely used in various equipment, mechanical parts, pipes, etc. In industrial production, they can effectively prevent the equipment from rusting and corrosion and ensure the normal operation of the equipment. In the agricultural field, galvanized steel coils are mainly used in the production of agricultural machinery and agricultural buildings, which can effectively prevent rust and corrosion of agricultural machinery and buildings and prolong the service life.

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Factory information：

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The thin steel sheet is immersed in a molten zinc tank to make a layer of zinc adhere to its surface.
Galvanized coil, the thin steel sheet is immersed in a molten zinc tank to make a layer of zinc adhere to its surface. It is mainly produced by continuous galvanizing process, that is, the rolled steel sheet is continuously immersed in a molten zinc plating tank to make galvanized steel sheet; alloyed galvanized steel sheet. This steel sheet is also made by hot dip method, but after leaving the tank, it is immediately heated to about 500℃ to form an alloy film of zinc and iron. This galvanized coil has good coating adhesion and weldability.