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Jinan Hengming Steel Co., Ltd

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Galvanized Coil

Product categories of Galvanized Coil, we are specialized manufacturers from China, Galvanized Coil, Regular Spangle suppliers/factory, wholesale high-quality products of Galvalume Steel Coil R & D and manufacturing, we have the perfect after-sales service and technical support. Look forward to your cooperation!

China Galvanized Coil Suppliers

The product obtained by coating organic coating on hot-dip Galvanized Steel Coil is hot-dip galvanized Color Steel Coil. In addition to the protective effect of zinc, the organic coating on the surface of hot-dip Galvanized Steel Sheet also plays the role of insulation protection and rust prevention, and its service life is longer than that of hot-dip Galvanized Sheet. The zinc content of hot-dip galvanized base plate is generally 180g / m2 (both sides), and the maximum zinc content of hot-dip galvanized base plate for building exterior is 275g / m2. Zinc coating weight code: Z100, z200, z275; zinc coating weight refers to the total amount of zinc on both sides of the steel plate, expressed in grams of zinc per square meter of steel plate (g / m2), for example, Z100 means that its zinc content is not less than 100g / m2.

According to the surface structure of Galvanized Coil, it can be divided into the following surfaces:
(1) Regular Spangle
In the normal solidification process of zinc layer, the zinc grains grow freely and form a coating with obvious zinc flower morphology.
(2) Minimized Spangle
During the solidification process of zinc coating, the zinc grains are artificially limited to form the smallest possible zinc flower coating.
(3) Spangle free zinc free coating
The coating obtained by adjusting the chemical composition of the bath has no visible zinc flower morphology and uniform surface.
(4) Zinc iron alloy coating
After heat treatment of the steel strip passing through the galvanizing bath, the whole coating forms an alloy layer of zinc and iron. The coating is dark gray in appearance and has no metallic luster. It is easy to be powdered in the violent forming process. It is suitable for coating that can be painted directly without further treatment except for general cleaning.
(5) Differential coating
For both sides of galvanized steel sheet, the coating with different weight of zinc layer is required.
(6) Smooth skin pass
Finishing is a kind of small deformation cold rolling of galvanized steel sheet for one or more of the following purposes.



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