Introduction of Galvanized Steel Composite Panel

Galvanized Steel Composite Panel is a welded steel sheet with a hot-dip galvanized or electro-galvanized layer on the surface, which is generally widely used in construction, household appliances, vehicles, vessels, container manufacturing, and mechanical and electrical industries.

Galvanized steel sheets are divided into ordinary electrolytic plates and fingerprint-resistant electrolytic plates. The fingerprint-resistant plate is based on the ordinary electrolytic plate with a fingerprint-resistant treatment, which is resistant to sweat. It is generally used on parts without any treatment, and the brand is SECC-N. Ordinary electrolytic plates are divided into phosphating plates and passivation plates. Phosphating is more commonly used, the brand is SECC-P, commonly known as p material. The passivation board can be divided into oiled and unoiled.

For example:

Hot-dip galvanized steel (SGCC) has an advantage over electro-galvanized steel (SECC). The bending and section of SECC are very easy to rust. Under the same conditions, SGCC has much better rust resistance. High-quality cabinets usually use SECC or SGCC galvanized steel plates. The cabinet steel plates using this material are bright in color and have a metallic luster. The advantage of this steel plate is its good corrosion resistance.

Electro-galvanized steel (SECC): uniform gray, mainly imported, fingerprint resistant, has excellent corrosion resistance and maintains the workability of cold-rolled steel. Uses home appliances, computer case shells and some door panels and panels.

Hot-dip galvanized steel (SGCC): dip-plated, bright white, small spangles (more difficult to see), large spangles can clearly see hexagonal flowers. There are only two plants in China Steel and Shengyu Steel Corporation in Taiwan Province that can produce them. There is no steel plant in mainland China that can produce high-quality materials, mainly relying on imports.

Main features:

Corrosion resistance, paintability, formability and spot weldability.

It has a wide range of uses and is mainly used for small household appliances that require good-looking parts, but it is more expensive than SECC. Therefore, many manufacturers switch to SECC to save costs.

Divided by zinc: the size of the spangle and the thickness of the zinc layer can indicate the quality of galvanizing, the smaller the thickness, the better. Manufacturers can also add anti-fingerprint processing. Also, it can be distinguished by its coating. For example, Z12 means the total amount of double-sided coating is 120g/mm.

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