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Jiangsu Dadong New Material Technology Co., Ltd.

China Manufacturer with main products: Surface Coating

Home  >Products Catalog > Hot-Dip Galvanized Steel (GI) East Steel

Hot-Dip Galvanized Steel (GI) East Steel

FOB Price: 800.00 - 1200.00 USD/Ton
Supply Ability: 10,000 Ton(s) per Year
In Stock

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Export Markets: North America, South America, Eastern Europe, Southeast Asia, Africa, Mid East, Eastern Asia, Western Europe
Place of Origin: Jiangsu in China
Packaging Details: Roll lying package, roll stand package

Quick Details

  • Brand Name: East
  • Coating: Plating
  • Substrate: Golden
  • Type: Coating Production Line
  • Condition: New


at present, prime hot dipped galvanized steel coils (gi steel sheet coil) is more and more popular. in order to prevent corrosion and prolong its service life, steel plate is coated with a layer of metal zinc, which is called a galvanized plate. Hot dip galvanization of hot dipped galvanized sheet metal(hdg steel)is the reaction of molten metal with an iron substrate to produce an alloy layer, thereby combining the substrate and the plating layer. Hot-dip galvanizing is to pickle iron and steel parts first. In order to remove iron oxide on the surface of iron and steel parts, after pickling. Due to the different treatment methods in the coating process, the surface state of the galvanized hot dipped steel sheet is also different, such as ordinary zinc flower, fine zinc flower, flat zinc flower, no zinc flower, etc. The pre coated gi sheet price is generally higher than the price of gi sheet.


Types of Hot-dip Galvanized Steel (GI)

Big Spangle Galvanized Steel

Big Spangle Galvanized Steel

Normal zinc Spangle (commonly known as ordinary zinc spangle, large zinc spangle) hot dip galvanised steel coil is the basic variety of hotdip galvanized steel strip (plate).

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Small Spangle Galvanized Steel

Small Spangle Galvanized Steel

It is required to control the solidification process of the zinc layer to obtain relatively uniform and fine zinc flowers, but visible to the naked eye. All types of the hdg hot dip galvanized steel coils are making procedure and function are the same, only appearance difference.

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Zero Spangle Galvanized Steel

Zero Spangle Galvanized Steel

Small zinc flowers invisible to the naked eye were obtained by means of control.Different customer preferences, different markets, and different uses determine different zinc flowers.

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Specifications of Hot-dip Galvanized Steel (GI)


Hot-dip Galvanized Steel (GI)





Coil weight


Material grade



Normal spangle, large spangle, small spangle, zero spangle


Corresponding instruments

Zinc coated



Covered with waterproof paper, strapped by strips or as customers' requirement


Application of Hot-dip Galvanized Steel

Hdg hot dip galvanized steel products are mainly used in construction, light industry, automobile, agriculture, animal husbandry, fishery, commerce, and other industries.


in construction industry,  galvanized steel sheet in coil of hdg is mainly used for manufacturing anti-corrosion industrial and civil building roof panels, roof grilles, etc.;


in light industry, it is mainly used for manufacturing household appliance shells, civil chimneys, kitchen utensils, etc.;


in automobile industry, it is mainly used for manufacturing corrosion-resistant parts of cars, etc.;


in agriculture, animal husbandry, and fishery, it is mainly used for grain storage and transportation, frozen processing utensils of meat and aquatic products, etc.;


in commerce, it is mainly used for material storage Transportation, packaging, etc.


Difference between Hot Dip Galvanized Steel and Galvanized Steel

Hot-dip galvanizing, also known as hot-dip galvanizing and hot-dip galvanizing, is an effective metal anti-corrosion method, which is mainly used in metal structure facilities of various industries. It is to immerse the steel parts after rust removal into the molten zinc at about 500 ℃ to make the surface of steel members adhere zinc layer, so as to achieve the purpose of anti-corrosion.


Electro galvanizing, also known as cold galvanizing in the industry, is the process of forming a uniform, dense and well-bonded metal or alloy deposition layer on the surface of parts by electrolysis. Compared with other metals, zinc is relatively cheap and easy to be plated. It is a low-value anti-corrosion electrodeposition. It is widely used to protect iron and steel parts, especially to prevent atmospheric corrosion, and for decoration.


Generally, the galvanized steel coil prices is different between hot dip galvanized steel and electro galvanizing, the price of hot-dip galvanizing is higher.


Hot-dip galvanizing process: finished product Pickling - water washing - adding auxiliary plating solution - drying - hanging plating - cooling - medicated chemical - Cleaning - grinding - hot-dip galvanizing.


Process flow of electro galvanizing: chemical degreasing - hot water washing - water washing - electrolytic degreasing - hot water washing - water washing - strong corrosion - water washing - electro galvanizing ferroalloy - water washing - water washing - Lighting - passivation - water washing - drying.


Dipping for a certain period of time can be put forward, which is hot-dip galvanizing. Owing to different techniques applied in proccess, hot hot dip galvanized steel can be produced with unequal spangle. among which the regular spangle galvanized steel is the most common one.


There are many processes for hot-dip galvanizing, which can only be immersed in the molten zinc bath after oil removal, pickling, dipping, drying, and other processes. Dipping for a certain period of time can be put forward, which is hot-dip galvanizing. For example, some hot-dip galvanized pipe fittings are processed in this way.


Electro galvanizing is processed by electrolytic equipment. after degreasing, pickling, and other processes, it is immersed in the solution containing zinc salt, connected with the electrolytic equipment, and precipitated zinc layer on the workpiece during the directional movement of positive and negative current.


the overall appearance of hot-dip galvanizing is a little rough, which will produce process water lines, droppings and another performance, especially one end of the workpiece is obvious, and the whole is silver-white. and the surface of galvanizing is smooth, mainly yellow-green, of course, there are colorful, cyan white, white, green light and other performance, the whole workpiece basically will not appear zinc tumor, caking and other phenomena.


East Steel is a professional steel coil manufacturers, we provide,,Galvanized hot dipped steel,Gi steel coil,Hot dipped galvanized sheet metal,Gi sheet coil, and etc. Want to know Gi colour sheet price orMore? Please contact us.


Hotdip Galvanized Steel GI East steel

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