AZ55 Galvalume steel is produced using a hot-dip galvanizing process to coat the steel with an aluminum-zinc alloy (55% aluminum, 43.5% zinc, and 1.5%–1.6% silicon), giving it excellent corrosion resistance, heat resistance, and formability. It is widely used in the construction, automotive, home appliance, and outdoor metal sheet industries.
Wanzhi Group manufactures and sells high-quality galvalume steel coils, steel sheets, roofing panels, and other products. In particular, our AZ55 galvalume sheets and AZ55 galvalume coils are designed for various applications to meet our customers’ diverse needs.

Available Product Specifications
| Product Name | AZ55 Galvalume Steel |
| Thickness Range | 0.12mm – 4mm |
| Width Range | ≤1500mm (slitting can be customized) |
| Grade | DX51D, DX52D, DX53D, SPCC, SGCC, S350GD, S550GD, etc. |
| Substrate Standard | ASTM A792, JIS G3321, EN 10346, GB/T 2518, GB/T 25052 |
| Coating Composition | 55% Al, 43.5% Zn, 1.5% Si |
| Coating | AZ55g/m² |
| Surface Treatment | Fingerprint resistant treatment, passivation, oil-coated or oil-free |
| Color Options | You can choose the natural color (GL steel metallic color) or paint it to make it into PPGL steel. |
| MOQ | 10 tons |
| Inner Diameter | 508/610mm |
| Coil Weight | 3-8 tons |
| Packaging | Standard export packaging or as per your requirements |
| Certificate | SGS、ISO 9001、CE |
| Delivery Date | 5-45 days |
Product Types We Supply
- AZ55 Galvalume Steel Coil: Initially produced galvanized-aluminum steel coils, commonly available in widths of 1000 mm, 1100 mm, 1200 mm, 1219 mm, 1250 mm, and 1500 mm.
- AZ55 Galvalume Steel Strip: Produced by slitting machines, which cut the galvalume steel coil into narrow strips.
- AZ55 Galvalume Steel Flat Sheet: Galvalume steel coils are cut to the required length using shearing machines to produce flat sheets.
- AZ55 Galvalume Steel Corrugated Sheet: Galvalume steel coils or flat sheets are formed into corrugated sheets through a roll forming process.
Comparison of AZ55 Galvalume Coils and Sheets
| Item | AZ55 Galvalume Steel Coil | AZ55 Galvalume Steel Sheet |
| Form | Rolled, continuous length (typically 3-8 tons per roll) | Standard-sized flatbeds (e.g., 4ft x 8ft, cut to size as needed) |
| Specification flexibility | High, can be cut to any length as needed, suitable for bulk customization | Low, fixed dimensions, custom orders or splicing required for special lengths |
| Processing convenience | Requires uncoiling, leveling, and feeding equipment, suitable for automated production lines (such as roll forming, continuous stamping | Ready to use immediately, no additional equipment needed, suitable for small batches, manual processing, or on-site construction |
| Transportation and warehousing | Small footprint (can be stacked), but requires moisture protection and upright storage; high efficiency for long-distance transportation | Large space required; flatbeds are prone to deformation and scratches when stacked, resulting in higher storage costs |
| Material utilization rate | High, can be cut to length as needed, reducing wast | Medium, fixed dimensions may not match actual needs, leading to scrap materials |
| Initial procurement cost | Roll price is usually slightly lower than sheet material (eliminating leveling processing costs) | Slightly higher unit price (including costs for leveling, cutting, and packaging) |
| Applicable scenarios | Large-volume, continuous production: profiled roofing sheets, photovoltaic brackets, ventilation ducts, etc. | Suitable for small batches and sporadic use |
Production Video
Applications of AZ55 Galvalume Steel
- Roofs and walls of factories and warehouses: In chemical plants, livestock farms, and coastal industrial facilities, where the air often contains corrosive substances, using this steel for roofs and wall panels ensures a long service life and low maintenance costs.
- Solar PV Panel Mounting Structures: Outdoor power station mounting structures are exposed to wind and sun for over two decades. Mounting structures made from AZ55 are resistant to intense summer heat (high-temperature resistance) and do not rust in the rain, ensuring they securely support the solar panels.
- Ventilation Ducts and Downspouts: When used for exterior rainwater downspouts on buildings or factory exhaust ducts, this material resists corrosion from rainwater and prevents deformation or cracking caused by exposure to hot air.
- Appliance Casing: For example, water heaters and ovens. Water heaters are constantly exposed to moisture, while ovens operate at high internal temperatures. AZ55 provides both rust resistance and high-temperature durability.

Wanzhi Group: Supplier of AZ55 Galvalume Steel
Wanzhi Group operates two galvanized aluminum-zinc production lines, primarily used to manufacture galvanized aluminum-zinc steel products in the range of AZ30–AZ150 g/m². To date, we have supplied steel coils, steel sheets, metal roofing panels, and related services to customers in nearly 120 countries worldwide. We also customize GL steel coils, GL roofing panels, and other products for various construction projects and factories, drawing on our extensive experience in export and manufacturing.
Factory
Wanzhi’s Galvalume Coating Production Line: From substrate cleaning, coating, cooling, and curing to final rolling and cutting, we maintain a rigorous production management system and have obtained multiple certifications, including ISO and SGS. Additionally, we offer value-added services such as slitting, bending, stamping, and forming.


Services
We provide one-stop services from raw materials (steel sheets) to production (aluminum-zinc-coated coils) and finished products (various metal sheets), effectively reducing costs and ensuring product quality.
Packaging and Shipping
Wanzhi Group places great emphasis on steel packaging, both to prevent product damage during transportation and to facilitate storage and sales for our customers. Wanzhi Group offers a variety of packaging options for its steel products. In addition to traditional export-standard packaging, we also provide a range of custom packaging styles to choose from.


Pricing
The price of Galvalume steel depends on factors such as the base material, manufacturing process, surface treatment, and specifications. Please leave a message with your specific requirements, and we will provide a free quote based on your needs! In addition to Galvalume steel, we also supply other steel products, such as galvanized steel, color-coated steel, stainless steel, and laminated metal coils, all of which can be customized. Please feel free to contact us!





