Our AZ180 Heavy Coated Galvalume Steel Coil is engineered for coastal and heavy industrial roofing applications where salt spray and pollutants cause relentless corrosion. Featuring a 55% aluminum-zinc alloy coating (AZ180, 180 g/m²), this product combines aluminum's barrier protection with zinc's sacrificial defense to deliver 4-6 times longer service life than standard galvanized steel, with documented field warranties up to 50 years. It withstands sustained temperatures up to 315°C (600°F). For coastal industrial roofing requiring maximum corrosion protection and minimal lifecycle cost, AZ180 is the ultimate long-term solution.
| Coating Composition | 55% Aluminum, 43.4% Zinc, 1.6% Silicon |
|---|---|
| Zinc Coating | AZ30 - AZ180 |
| Thickness | 0.12 - 3.0mm |
| Width | 600mm - 1500mm |
| Surface Treatment | Chromated Passivation, Oiled, Anti-Fingerprint |
| Spangle Finish | Regular / Minimized / Zero spangle |
| Heat Resistance | Up to 315°C continuous |
| Key Performance | 50-year substrate warranty available |
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; 15-20 day delivery for Asia, 30-45 days globally.
Quality Assurance: Pre-shipment inspection and moisture indicators for transit protection.