EN
DC51D Color Coated Steel Coil
The DC51D substrate is treated with hot-dip galvanizing (Z) or aluminum-zinc-magnesium (AZ/ZM) to form a dense protective layer. Zinc provides cathodic protection, while aluminum-magnesium further optimizes the stability of the coating. Its corrosion resistance is more than three times that of ordinary galvanized sheets. The coating process uses materials such as polyester (PE) and fluorocarbon (PVDF) to enhance weather resistance and wear resistance, ensuring long-term protection in damp and industrial pollution environments.
- Overview
- Product Parameter
- Excellent corrosion resistance
- Related Products
Product Parameter
|
Product Name |
Prepainted Galvanized/Galvalume Steel Coil (PPGI,PPGL) |
|
Material |
CGCC/SGCH/G350/G450/G550/DX51D/DX52D/DX53D |
|
Thickness |
0.12-2.00mm |
|
Width |
600-1500mm |
|
Length |
1-12 m or as customer's actual requirement |
|
Zinc Coating |
30-275 g/m |
|
Surface Treatment |
Flat Surface, Matt, Embossed |
|
Coil ID |
508mm/610mm |
|
Color |
RAL Color, Accoring Customer Request |
|
Payment Term |
30%TT Advance + 70% Balance |
|
Certificate |
CE,ISO9001,BV,TUV |
Excellent corrosion resistance
Galvanized layer protection: If hot-dip galvanized sheet is used as the base plate, the zinc layer is evenly covered, which can effectively prevent corrosive media such as oxygen and moisture from coming into contact with the base plate. In a humid environment, the zinc coating is corroded preferentially, sacrificing its own protection of the substrate and greatly extending the service life of the product. For instance, in the construction field, for outdoor steel structural components, DC51D hot-dip galvanized color-coated steel coils are used, which can resist atmospheric corrosion for a long time and reduce maintenance costs.
Aluminum-zinc coating strengthening: When hot-dip aluminum-zinc alloy substrates are used, the corrosion resistance is further enhanced. Its coating is formed by the solidification of 55% aluminium, 43.4% zinc and 1.6% silicon at a high temperature of 600℃ to create a dense quaternary crystal. Aluminum rapidly forms an aluminum oxide protective film when zinc wears away, preventing the spread of corrosion. For instance, the roofs and walls of industrial plants are coated with aluminized zinc DC51D color-coated coils, which can maintain a good condition in harsh industrial environments and have a service life several times that of ordinary galvanized base plates.
