DX51D+Z Anti-Rust Galvanized Steel Coil For Infrastructure Project
Product Description
Engineered for demanding infrastructure applications, our DX51D+Z
Anti-Rust Galvanized Steel Coil delivers exceptional corrosion
resistance through a specialized chromate passivation process. The
treatment forms a dense protective barrier that prevents white rust
formation during outdoor storage and pre-construction phases. With
zinc coating grades Z90-Z275 and salt spray resistance up to 1,200
hours, this coil maintains structural integrity in coastal and
high-humidity environments. Certified to ASTM A653 and EN 10346
standards, it features enhanced adhesion properties for subsequent
painting or powder coating processes. Ideal for bridges,
transmission towers, and highway guardrails where long-term
corrosion protection is critical.
Technical Parameters
| Parameter | Specification |
|---|
| Base Material | DX51D+Z (ASTM A653, EN 10346) |
Thickness | 0.12mm - 2.0mm(±0.02mm) |
Width | 600mm - 1,500mm |
Coating Weight | Z100-Z275 (100-275g/m²) |
| Surface Treatment | Chromated Passivation |
Salt Spray Resistance | 1,200hrs (ASTM B117) |
Coil ID | 508mm/610mm |
Coil Weight | 3-8 Tons |
Infrastructure Applications
Bridge Components: Corrosion-resistant structural elements for
coastal and river-crossing bridges
Power Transmission: Towers and substation structures in corrosive
industrial environments
Highway Systems: Guardrails, sign supports, and noise barrier
frameworks
Public Utilities: Electrical enclosure boxes and drainage system
components
Packing and Shipping
We ensure secure delivery with VCI+PE dual-layer waterproof
packaging and reinforced edge guards for optimal corrosion
protection. Global shipping options are available via FOB/CIF, with
project quantities delivered within 25-30 days. Each shipment
includes pre-shipment inspection and moisture indicators for
quality assurance.
FAQ
Q1: Does the chromate treatment affect the welding performance or
paint adhesion of the steel coil?
A1: Not at all. Our advanced trivalent chromium passivation process
is specifically formulated to be non-interfering. It creates a
thin, uniform layer that provides superior anti-white rust
protection without compromising surface properties. This ensures
excellent weldability with no spatter issues and, simultaneously,
enhances paint adhesion for subsequent coating processes, serving
as an ideal pretreatment base.
Q2: What are the available options for custom-cut sheets, and what
is the dimensional tolerance?
A2: We specialize in providing custom-cut sheets tailored to your
project needs. The maximum standard length we can supply is 6
meters, with a range of 3 to 6 meters available. All shearing is
performed with high-precision equipment, guaranteeing
mill-certified dimensional accuracy and clean, burr-free edges,
ready for immediate use in your fabrication process.
Q3: What quality documentation accompanies the material?
A3: We provide full traceability and quality assurance. Each batch
of material is supplied with an EN 10204 3.1 certificate, which is
a mandatory, independent inspection certificate that validates the
chemical composition and mechanical properties against the order
specifications. This ensures full compliance for your
infrastructure projects and simplifies your own quality control
procedures.
