DX51D Chemical Composition Table
|
Element |
Max (%) |
|
Carbon (C) |
≤ 0.12 |
|
Manganese (Mn) |
≤ 0.60 |
|
Phosphorus (P) |
≤ 0.10 |
|
Sulfur (S) |
≤ 0.045 |
|
Silicon (Si) |
≤ 0.05 |
|
Aluminum (Al) |
≥ 0.02 |
|
Nitrogen (N) |
≤ 0.009 |
Introduction
The DX51D Galvanized Roofing Sheet is a metal roofing material made from DX51D-grade hot-dip galvanized steel coils through processes such as shearing and profiling. It is widely used in industrial plants, warehouses, residential buildings, temporary construction projects, and other applications.
Available Sizes & Thickness
Thickness: 0.3mm – 2.0mm (common roofing range: 0.4mm – 0.7mm)
Width: 600mm – 1250mm (customizable)
Length: Custom-cut (typically 2m – 12m)
Standards in different countries
|
Standard System |
Equivalent Grade |
|
European Standard (EN) |
DX51D+Z |
|
American Standard (ASTM) |
CS Type B |
|
Japanese Standard (JIS) |
SGCC |
|
Chinese Standard (GB/Baosteel) |
DC51D+Z |
|
German Standard (DIN) |
St01Z / St02Z |
|
International |
DX51D+AZ (Al-Zn coated) |
Color Selection
Features
Excellent Corrosion Resistance
The surface of DX51D Galvanized Roofing Sheet is coated with a dense zinc layer, which not only effectively isolates the steel from corrosive elements like oxygen and moisture in the air but also forms a protective film on the steel surface, further delaying the corrosion process.
Excellent Waterproof Performance
The galvanized layer enhances the corrosion resistance of the steel while also providing excellent waterproofing performance. The density and smoothness of the zinc layer make it difficult for moisture to penetrate, effectively preventing roof leaks. Additionally, the joints of the roofing panels are typically treated with a special sealant, further improving the overall waterproofing effect.
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