In our daily life, we are basically inseparable from metal products.
Take galvanized steel sheet and galvanized iron sheet for example, which is the material that many people will use when decorating now.
What is the specific difference between galvanized steel sheet and galvanized iron sheet? What are the types of galvanized steel plate?
Today I will take you to have a comprehensive understanding.
1. Difference between galvanized steel sheet and galvanized iron sheet
1. Difference in meaning
Galvanized iron is a kind of low carbon steel sheet coated with zinc on the surface.
Its basic thickness is generally 0.44~1.2 mm, and the thickness of zinc layer is also greater than 0.02 mm.
Galvanized iron sheet can be divided into flat sheet and corrugated (corrugated) sheet.
Ungalvanized sheet is commonly known as black iron sheet.
Galvanized steel plate is a kind of welded steel plate with hot-dip or galvanized zinc coating on the surface.
Galvanized steel plate can be divided into ordinary electrolytic plate and fingerprint resistant electrolytic plate.
Fingerprint-resistant plate is mainly based on the ordinary electrolytic plate for additional fingerprint-resistant treatment, which can resist sweat, and is generally used on parts without any treatment.
The common electrolytic plate can be divided into phosphating plate and passivation plate.
2. Differences in characteristics
The galvanized iron sheet is basically not easy to rust and has strong corrosion resistance, and has strong ductility.
Galvanized steel plate can effectively prevent steel corrosion, prolong service life, and has excellent painting, decoration, formability, heat conduction and heat reflection.
3. Difference in use
Galvanized iron sheet is a kind of iron coiled material widely used in industry, manufacturing and other industries. It is often used to manufacture roofs, coils and various containers.
Galvanized steel sheet is widely used in construction, vehicles, household appliances, daily necessities, light industry, agriculture, transportation and other industries.
2. Type of galvanized steel plate
1. Hot-dip galvanized steel sheet
Immerse the sheet steel into the molten zinc bath to make its surface adhere to the zinc sheet steel.
At present, it is also basically produced by a continuous galvanizing process, which can continuously dip the rolled steel plate into the molten zinc plating bath to make galvanized steel plate;
2. Alloyed galvanized steel sheet
Moreover, this kind of steel plate is basically manufactured by a hot dip method, but it can be heated to about 500 ℃ immediately after it is out of the tank, which is also an alloy coating that can make it produce zinc and iron.
This kind of galvanized sheet also has very good coating adhesion and weldability;
3. Electrogalvanized steel sheet
The galvanized steel plate is mainly manufactured by electroplating method, which basically has a particularly good processing performance.
However, the coating is relatively thin and its corrosion resistance is not as good as that of hot-dip galvanized sheet;
4. Single-sided galvanized steel plate and double-sided differential galvanized steel plate
Single-sided galvanized steel plate, that is, products that are galvanized on one side only.
It has better adaptability than double-sided galvanized sheet in welding, coating, anti-rust treatment, processing, etc.
In order to overcome the shortcoming of single side without zinc coating, there is another kind of galvanized sheet coated with thin layer of zinc on the other side, that is, double-sided differential galvanized sheet;
5. Alloy and composite galvanized steel plate
It mainly uses zinc and other metals such as lead and zinc to make alloy and even composite plating steel plate.
This kind of steel plate not only has excellent anti-rust performance, but also has good coating performance.