DX53D+Z Zero-Spangle Welding Galvanized Coil
| Attribute | Value |
|---|---|
| Product Name | Galvanized Steel Coil |
| Material | High-Strength Steel Coil |
| Sheet Thickness | 0.12mm - 4.0mm (±0.02mm) |
| Sheet Width | 600mm - 1,500mm (±2mm) |
| Tensile Strength | 340-550 MPa |
| Surface Treatment | Chromated/Oiled |
| Salt Spray Resistance | 1,000hrs (ASTM B117) |
| Corrosion Warranty | 25-year anti-perforation |
Engineered for welding-intensive applications, our 0.12-4.0mm Customizable Galvanized Steel Coil delivers superior weldability and corrosion resistance. Featuring a zinc-iron alloy layer (ZF) with optimized microstructural bonding (10μm min.), this coil achieves seamless welding without spatter or porosity. The hot-dip process applies 30-275g/m² zinc coating (adjustable per project needs), backed by 1,000+ hours ASTM B117 salt spray resistance for harsh industrial environments. Certified to EN 10142 and JIS G3302, it ensures structural integrity in fabrication-critical sectors like automotive frames and pre-engineered buildings.
| Parameter | Specification |
|---|---|
| Thickness Range | 0.12-4.0mm (±0.02mm) |
| Width Range | 600-1,500mm (±2mm) |
| Zinc Coating | 30-275g/m² (customizable) |
| Tensile Strength | 340-550 MPa (Grade-Dependent) |
| Spangle Type | Zero/Minimal (ideal for painting) |
| Surface Treatment | Chromated + Oiled (Anti-Fingerprint) |
| Welding Compatibility | AWS D1.3, ISO 14315 |
- Structural Fabrication: Welded trusses, support beams, and crane girders requiring zero porosity joints (ISO 5817-B).
- Automotive Chassis: Laser-welded components with ≤0.1mm heat-affected zone (HAZ) distortion.
- Pre-Engineered Buildings: Bolt-free welded frames for warehouses, leveraging EN 1090-2 certification.
- Industrial Piping: Seamless ERW (Electric Resistance Welded) pipes in chemical plants.
- Material Grades: DX53D+Z (deep drawing), S350GD+Z (structural), S550GD+Z (high-strength).
- Zinc Coating: 30g/m² (indoor) to 275g/m² (coastal).
- Edge Processing: Mill edge/trimmed edge with PVC protectors for weld alignment.
- MOQ: 25 tons (standard), 5 tons for custom spangle/texture.
- Triple-Shield Packaging: VCI anti-rust kraft paper inner layer, 0.3mm PE waterproof film with moisture indicators, steel-strapped pallets + edge guards (max. 8-ton coils).
- Global Logistics: FOB/CIF from Chinese ports; 15-day delivery for Asia, 30 days globally.
The ZF alloy layer (FeZn₇/FeZn₁₃) reduces zinc vaporization at 450°C, preventing weld cracks.
60-120g/m² balances corrosion resistance and low spatter (per AWS D1.3 guidelines).
Self-passivating zinc layer reduces need for repainting; biennial inspections suffice.
Complies with EN ISO 1461 (galvanizing) and EN 1090-2 (CE welding).
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