Hot Products
China Hot-Dip Galvanized Coil Suppliers - Zero-Spangle, Smooth Surface, Factory Direct Quality
Comparison Table
| EN | BAOGANG |
|---|---|
| DX51D+Z | DC51D+Z |
| DX52D+Z | DC52D+Z |
| DX53D+Z | DC53D+Z |
| DX54D+Z | DC54D+Z |
| DX56D+Z | DC56D+Z |
| DX57D+Z | DC57D+Z |
| HX260LAD+Z | HC260LAD+Z |
| HX300LAD+Z | HC300LAD+Z |
| HX340LAD+Z | HC340LAD+Z |
| HX380LAD+Z | HC380LAD+Z |
| HX420LAD+Z | HC420LAD+Z |
| HX460LAD+Z | HC460LAD+Z |
| HX500LAD+Z | HC500LAD+Z |
| HX180YD+Z | HC180YD+Z |
| HX220YD+Z | HC220YD+Z |
| HX260YD+Z | HC260YD+Z |
| HX180BD+Z | HC180BD+Z |
| HX220BD+Z | HC220BD+Z |
| HX260BD+Z | HC260BD+Z |
| HCT600X+Z | HC340/590DPD+Z |
| HCT 780X+Z | HC420/780DPD+Z |
| HCT 980X+Z | HC550/980DPD+Z |
| - | HC820/1180DP+Z |
Applications
Solar mounting structures, cleanroom equipment, and architectural façades requiring aesthetic consistency.
Key Advantages
Visual Appeal
Gloss levels 20–40 GU eliminate light scattering in visible installations.
Coating Integrity
XRF testing guarantees zinc purity ≥99.995% with <0.01% Pb/Cd.
Custom Thickness
Zinc layers 20–275 μm (Z100–Z275) for coastal or industrial environments.
Frequently Asked Questions
What is the difference between EN standards and BAOGANG standards for galvanized steel?
EN standards (like DX51D+Z) and BAOGANG enterprise standards (like DC51D+Z) represent corresponding steel grades with equivalent chemical composition, mechanical properties, and zinc coating characteristics designed for cold forming and structural applications.
Why is a zero-spangle surface finish important for architectural façades?
Zero-spangle galvanized coils offer a smooth, uniform surface without visible zinc crystals. This ensures aesthetic consistency and a sleek appearance, making them ideal for visible architectural façades and premium cleanroom equipment.
What does the 20–40 GU gloss level signify?
Gloss levels of 20–40 GU (Gloss Units) indicate a semi-matte finish. This specific range is engineered to eliminate light scattering and glare, which is crucial for safety and visual comfort in exposed installations.
How is the environmental safety and purity of the zinc coating verified?
We utilize X-ray fluorescence (XRF) testing to verify the coating. This guarantees a high zinc purity of ≥99.995% while keeping heavy metals like lead (Pb) and cadmium (Cd) below 0.01%, ensuring environmental compliance.
Can these galvanized coils withstand harsh coastal or industrial environments?
Yes, they are highly suitable. We offer customizable zinc layer thicknesses ranging from 20 to 275 μm (Z100 to Z275), allowing you to select the appropriate protection level for severe corrosive environments.