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AZ200 Ultra Heavy Coated Galvalume Steel Coil For Offshore Platform Structures
AZ200 Ultra Heavy Coated Galvalume Steel Coil For Offshore Platform Structures
AZ200 Ultra Heavy Coated Galvalume Steel Coil For Offshore Platform Structures
AZ200 Ultra Heavy Coated Galvalume Steel Coil For Offshore Platform Structures
AZ200 Ultra Heavy Coated Galvalume Steel Coil For Offshore Platform Structures
AZ200 Ultra Heavy Coated Galvalume Steel Coil For Offshore Platform Structures
Specifications
Price :
Negotiation
Width :
600mm - 1500mm
Model Number :
DX51D+AZ
Product Type :
Coil / Sheet / Strip
Certification :
ASTM A792M, EN 10346, JIS G3321, ISO 9001
Coating Weight :
30-200g/㎡
Brand Name :
Huiyi-GL
Product name :
Galvalume Steel Coil
MOQ :
25Tons
Delivery Time :
15-30 Days
Thickness :
0.12 - 3.0mm
Payment Terms :
L/C,D/P,T/T
Key Feature 1 :
Dual-phase protection: aluminum barrier + zinc sacrificial protection
Packaging Details :
Exporting Packing with 3layers including the waterproof plastic film，Waterproof paper - plastic film-metal wrap.
Supply Ability :
5000MT/Month
Key Feature 2 :
25–40 year maintenance-free service life in mild industrial environments
Place of Origin :
China
Coil Weight :
3 - 8 tons
Description
AZ200 Ultra Heavy Coated Galvalume Steel Coil For Offshore Platform Structures

Our AZ200 Ultra Heavy Coated Galvalume Steel Coil is engineered for offshore platforms and marine infrastructure, where extreme salt spray and moisture demand maximum protection. The AZ200 coating (200 g/m² double-sided, ~24 μm per side) features a 55% aluminum-zinc alloy (55% Al, 43–43.5% Zn, 1.5% Si) applied via continuous hot-dip process. This provides dual-phase protection: aluminum forms a dense oxide barrier against moisture and chlorides, while zinc offers sacrificial protection at cut edges. Under ASTM B117 salt spray testing, AZ200 achieves 480+ hours of corrosion resistance—significantly outperforming lighter coatings—and delivers 25–40 years of maintenance-free service in mild industrial environments, making it the specified choice for offshore and coastal infrastructure.

AZ200 Ultra Heavy Coated Galvalume Steel Coil For Offshore Platform Structures
Product Specifications
Coating Composition 55% Aluminum, 43.4% Zinc, 1.6% Silicon
Zinc Coating AZ30 - AZ200
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
Salt Spray Resistance (ASTM B117) 480+ hours
Applications
  • Offshore Platform Structures: Primary material for topside modules, helidecks, living quarters, pipe racks, and support frames on oil and gas platforms, where resistance to seawater spray and marine atmosphere is critical.
  • Coastal & Marine Facilities: Buildings at seaports, shipyards, dockside warehouses, and offshore platform support structures requiring maximum corrosion protection with minimal maintenance access.
  • Bridge & Marine Infrastructure: Structural components for coastal bridges, causeways, and marine terminals exposed to salt spray, tidal action, and de-icing chemicals.
  • Desalination & Power Plants: Critical infrastructure in coastal power generation and water treatment facilities where corrosion from seawater and industrial pollutants is relentless.
AZ200 Ultra Heavy Coated Galvalume Steel Coil For Offshore Platform Structures
Packaging and Shipping

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.

AZ200 Ultra Heavy Coated Galvalume Steel Coil For Offshore Platform Structures
FAQ
Do you provide samples?
Yes, for regular sizes sample is free, buyer need to pay freight cost.
How can I get a quotation?
You can leave us message, and we will reply in time. And you can also find our contact details on the Contact page.
How long is the delivery time?
It depends on the order quantity, normally the delivery time takes around 15-30 working days. Please kindly contact us before ordering.
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AZ200 Ultra Heavy Coated Galvalume Steel Coil For Offshore Platform Structures
AZ200 Ultra Heavy Coated Galvalume Steel Coil For Offshore Platform Structures
AZ200 Ultra Heavy Coated Galvalume Steel Coil For Offshore Platform Structures

AZ200 Ultra Heavy Coated Galvalume Steel Coil For Offshore Platform Structures

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Product Detail
Price :
Negotiation
Width :
600mm - 1500mm
Model Number :
DX51D+AZ
Product Type :
Coil / Sheet / Strip
Certification :
ASTM A792M, EN 10346, JIS G3321, ISO 9001
Coating Weight :
30-200g/㎡
Contact Supplier

Shanghai Huiyi International Co., Ltd.

Verified Supplier
6 Years
shanghai, shanghai
Since 2017
Business Type :
Manufacturer, Agent, Exporter, Trading Company, Seller
Main Products :
PPGL Steel Coil, PPGI Steel Coil, Galvanised Steel Coil
Total Annual :
500thousand-1million
Certification Level :
Verified Supplier
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