JINBAICHENG Metal Materials Co., Ltd

Professional China Galvalume Roofing Sheet - Galvanized Thin Steel Coil – JINBAICHENG

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We keep on with the theory of "quality first, provider initially, constant improvement and innovation to meet the customers" with the management and "zero defect, zero complaints" as the standard objective. To great our company, we deliver the merchandise using the fantastic excellent at the reasonable price for 321 Stainless Steel Coil Plate , Brass Rod , Corten Steel Sheet , The principle of our company is to provide high-quality products, professional service, and honest communication. Welcome all friends to place trial order for creating a long-term business relationship.
Professional China Galvalume Roofing Sheet - Galvanized Thin Steel Coil – JINBAICHENG Detail:

Definition of plating

(1) Normal spangle coating
In the normal solidification process of the zinc layer, zinc grains grow freely to form a coating with obvious spangle morphology.

(2) minimized spangle coating
During the solidification of the zinc layer, the zinc crystal grains are artificially restricted to form the smallest possible spangle coating.

(3) Spangle-free coating
It is obtained by adjusting the chemical composition of the plating solution, which does not have a visible spangle morphology and has a uniform surface coating.

(4) Zinc-iron alloy coating
The steel strip after passing through the galvanizing bath is heat treated to form an alloy layer of zinc and iron throughout the coating. This coating has a dark gray appearance without metallic luster, and is easy to powder during the violent forming process. In addition to cleaning, the coating can be painted directly without further treatment.

(5) differential coating
For both sides of the galvanized steel sheet, coatings with different zinc layer weights are required.

(6) Smooth skin pass
Smoothing is a kind of cold rolling of galvanized steel sheet with a small amount of deformation for one or several of the following purposes. Improve the appearance of the galvanized steel sheet or be suitable for decorative coating; temporarily minimize the slip line (Lüdes line) or crease generated when the finished product is processed

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Coiled Plate5
Coiled Plate
Coiled Plate4

Product advantages

Passivation treatment of the galvanized layer can reduce folding rust (white rust) under moisture storage and transportation conditions. However, the anti-corrosion performance of this chemical treatment is limited, and it hinders the adhesion of most coatings. This kind of treatment is generally not used on the zinc-iron alloy coating. In addition to the smooth surface, as a rule, the manufacturer will passivate other types of zinc coatings.

Oiling can reduce the corrosion of steel plates under humid storage and transportation conditions. After passivation treatment of steel plates and steel strips, repainting oil will further reduce the corrosion under humid storage conditions. The oil layer should be able to be removed with a degreaser that does not damage the zinc layer.


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Professional China Galvalume Roofing Sheet - Galvanized Thin Steel Coil – JINBAICHENG detail pictures

Professional China Galvalume Roofing Sheet - Galvanized Thin Steel Coil – JINBAICHENG detail pictures

Professional China Galvalume Roofing Sheet - Galvanized Thin Steel Coil – JINBAICHENG detail pictures


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Sticking for the principle of "Super Quality, Satisfactory service" ,We have been striving for being a superb small business partner of you for Professional China Galvalume Roofing Sheet - Galvanized Thin Steel Coil – JINBAICHENG , The product will supply to all over the world, such as: Netherlands, Naples, Naples, With well educated, innovative and energetic staff, we are responsible for all elements of research, design, manufacture, sale and distribution. By studying and developing new techniques, we are not only following but also leading fashion industry. We listen attentively to the feedback from our customers and provide instant replies. You will instantly feel our professional and attentive service.
  • Production management mechanism is completed, quality is guaranteed, high credibility and service let the cooperation is easy, perfect!
    5 Stars By Lilith from Croatia - 2018.12.22 12:52
    Speaking of this cooperation with the Chinese manufacturer, I just want to say"well dodne", we are very satisfied.
    5 Stars By Muriel from belarus - 2017.03.28 16:34
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