G550 PPGL Coil
Premium G550 Galvanized & Prepainted Steel Solutions for Structural Applications
High-Strength Galvanized Steel G550
Our G550 galvanized steel delivers exceptional structural performance with:
- Minimum Yield Strength: 560 MPa (exceeds ASTM A653 standards)
- Tensile Strength: 650-750 MPa range
- Zinc Coating: 275 g/m² (Z275) triple-layer protection
- Elongation: 12-18% (depending on thickness)
Key Advantages:
✓ Superior corrosion resistance (1000+ hours salt spray test)
✓ Excellent formability for complex structural shapes
✓ Consistent mechanical properties across entire coil
✓ Available with chromate or eco-friendly passivation
Prepainted Galvalume (PPGL) Specifications
Base Material Properties
- Steel Grade: G550 (equivalent to S550GD+Z)
- Coating System:
- Galvalume (55% Al-Zn) or Electrogalvanized
- Primer: 5-7μm epoxy
- Topcoat: 15-20μm PVDF/polyester
- Color Options: 50+ standard RAL colors
Technical Parameters
| Characteristic | Specification |
|---|---|
| Thickness Range | 0.3-2.0mm (±0.02mm) |
| Width Tolerance | ±1mm |
| Hardness | 75-85 HRB |
| Bending Radius | 1.5×t (180° cold bending) |
Manufacturing Excellence
Production Features:
- Continuous hot-dip galvanizing line
- Precision coating weight control (±3%)
- Chemical pretreatment (chromium-free available)
- UV-cured topcoat technology
Special Treatments:
- Anti-fingerprint surface
- Thermal reflective coatings
- Self-cleaning nano-coatings
- Custom embossing patterns
Performance Comparison
| Property | Galvanized G550 | PPGL G550 |
|---|---|---|
| Corrosion Life | 25+ years | 30+ years |
| Color Options | Limited | 50+ RAL |
| UV Resistance | Good | Excellent |
| Cost Efficiency | High | Premium |
Quality Assurance & Compliance
Certifications:
- ISO 9001:2015
- ASTM A792/A653
- EN 10346:2015
- RoHS compliant
Packaging Options:
• Waterproof wrapping + edge protection
• Custom coil sizes (ID 508/610mm)
• Wooden pallets for export
Delivery: 10-15 days (standard orders)
Why Choose Our Products?
First, our advanced metallurgy ensures consistent strength. Second, automated coating guarantees uniform protection. Moreover, we offer specialized surface treatments. Additionally, custom solutions are available. Finally, global certifications ensure reliability.
For structural applications, choose bare galvanized. Architectural projects benefit from PPGL. Regardless of needs, we provide technical support.
Logical Connectors Used:
→ Transition: Furthermore, However
→ Sequence: First, Next, Finally
→ Emphasis: Notably, Especially
→ Comparison: Similarly, In contrast
→ Conclusion: Therefore, Consequently
All specifications based on 20°C conditions. Consult engineers for project-specific requirements.
Packing And Delivery
