AZ50 and AZ55 are mainstream galvalume steel grades referring to different double-sided aluminum-zinc coating weights. Featuring superior corrosion resistance and high-temperature performance, they serve as ideal PPGL substrates, widely applied for roofing sheets and home appliance back panels and casings. Equipped with professional production lines, Wanzhi Group supplies galvalume steel ranging from AZ30 to AZ150g/m2 with customizable thickness, width and surface finishes.
Thickness: 0.12mm – 4.0mm
Width: ≤1500mm
Standards: ASTM A792, EN 10346, JIS G3321

What Does AZ50 and AZ55 Galvalume Steel Mean?
Wanzhi Group supplies both AZ50 and AZ55 galvalume steel compliant with ASTM A792 standard, available as coils, sheets, strips and corrugated roof & wall plates. Boasting outstanding corrosion and heat resistance, our high-quality materials have been exported to more than 120 countries and regions globally.
- AZ50 Galvalume Steel: It features a double-sided 55% aluminum-zinc alloy coating with a total weight of 50g/m². It provides reliable basic corrosion and heat resistance. Cost-effective for indoor uses like PPGL steel substrates, appliance back panels and conventional roofing projects.
- AZ55 Galvalume Steel: It adopts the same Al-Zn alloy formula with a total double-sided coating weight of 55g/m². It achieves superior rust and high-temperature resistance compared with AZ50, ideal for humid outdoor environments demanding long service life.



Specification
| Product Name | AZ50 AZ55 Galvalume Steel |
|---|---|
| Coating Weight | AZ50: 50 g/m²; AZ55: 55 g/m² |
| Thickness | 0.12 mm - 4.0 mm |
| Width | ≤ 1500 mm |
| Supply Forms | Steel Coil, Steel Sheet, Slit Strip, Corrugated Sheet |
| Material | DX51D, DX52D, DX53D, DX54D, S220GD, S280GD, S300GD, S350GD, S450GD, SGLCC, SGLCD, Q235, etc. |
| Substrate | Cold rolled carbon steel |
| Processing Service | Slitting, cut to length, bending, punching, stamping, forming, etc. |
| Standard | GB/ JIS/ ASTM/ EN |
| Surface Treatment | Passivation, Anti-Fingerprint, Oiled, Coated |
| Quality Certificate | SGS, ISO, BV, CE etc. |
| MOQ | 10 tons |
| Package | Standard Export Packaging or as per your requirements |
Advantages of AZ50 AZ55 Galvalume Steel
- Excellent Corrosion Resistance: The 55% aluminum-zinc alloy layer effectively resists rust and erosion in humid and coastal environments.
- High Temperature Resistance: It stays stable under high temperatures, avoiding discoloration, peeling and oxidation.
- Uniform Coating Layer: Even plating ensures stable performance across the whole steel surface.
- High Weather Adaptability: Strong anti-aging capability guarantees stable service in diverse climatic conditions.
- Cost-Effective: Balanced durability and price satisfies different indoor and outdoor usage demands.
- Long Service Lifespan: Aluminum-zinc alloy coating effectively slows oxidation and rust, greatly prolonging service time.
AZ50 AZ55 Galvalume Steel Applications
- Building Roofing & Wall Cladding: Factory, warehouse and farm building roof sheets, wall panels, corrugated roofing materials.
- PPGL Base Substrate: Serves as ideal base material for producing prepainted galvalume color coated steel coils and sheets.
- Home Appliance Accessories: Air conditioner back panels, refrigerator shells, electrical cabinet casings, ventilation parts.
- Agricultural Facilities: Greenhouses, livestock barns, agricultural silos, farm enclosure structures.
- Ventilation & Pipeline Components: Air ducts, exhaust pipes, smoke channels, various ventilation fittings.
- Transportation Industry Parts: Truck carriage panels, container auxiliary parts, vehicle interior structural components.
- Solar Bracket & Photovoltaic Accessories: Solar support frames, photovoltaic back plates, outdoor power equipment housings.
AZ50 AZ55 Galvalume Steel Prices
The prices of AZ50 and AZ55 galvalume steel generally depends on base material, steel thickness, width, substrate grade, surface treatment, order quantity and other factors. Galvalume steel is priced at USD 600 to 1000 per ton. Standard specifications are available from stock, while the lead time for customized products ranges from 5 to 45 days. Apart from galvalume steel, Wanzhi also provides hot rolled & cold rolled steel, galvanized steel, pre-painted galvanized steel, color coated aluzinc steel, PPAL, ZAM, stainless steel and other related products. Please feel free to contact us, and our account managers will prepare a free quotation for you!


GL Steel Manufacturer & Supplier- Wanzhi Group
Wanzhi Group is an ISO-certified manufacturer and supplier of galvanized steel products. Our factory is located in Boxing County, Binzhou City, Shandong Province, China. We operate professional production lines for galvanized/aluzinc steel, color coated steel and aluminum-magnesium alloy coated steel, enabling us to deliver reliable steel production capacity. Our galvanized steel covers coating weights from Z30 to Z275g/m², while our galvalume steel ranges from AZ30 to AZ150g/m² to fulfill diverse requirements from customers in all sectors.






Wanzhi Steel Factory
Wanzhi factory is equipped with 8 professional production lines, each with a monthly output of 10,000 tons and an annual production capacity of 600,000 tons, guaranteeing stable and reliable supply. We maintain sufficient stock of standard products, while the lead time for customized orders ranges from 5 to 45 days.






- Deep Processing Services: In addition to raw steel production, we offer a full range of deep processing services including slitting, cut-to-length, punching, stamping, bending, forming, welding, coating and special-shaped processing.
- One-stop Service: Wanzhi team provides full-process services covering material selection, technical consultation, customized production and logistics delivery, alongside 24-hour online customer support.
- Certificates: Our factory has obtained ISO9001, ISO14001 and ISO45001 certifications. Our steel products strictly comply with international standards such as ASTM, GB, JIS and EN. Mill Test Certificates (MTC) are available for all orders, and third-party inspections by SGS, BV, TUV and other authoritative institutions are supported.

Customer Visits
So far, we have hosted factory visits and on-site inspections for clients from over 40 countries and regions such as Turkmenistan, Kazakhstan, Peru, Indonesia, Turkey, Georgia, Libya, the UAE and Saudi Arabia. These face-to-face visits help global partners fully understand our automated production lines and rigorous quality control systems, laying a solid foundation for our long-term trusted cooperation worldwide.

Packing and Delivery
We adopt standard export packaging including plastic film, moisture-proof paper, galvanized steel sheets, corner protectors and wooden pallets to protect products from moisture and rust. It ensures goods arrive intact at clients’ factories or project sites. Customized export packaging solutions are also available upon customer request.

Global Cases
Wanzhi exports GI, GL, PPGI, PPGL coils, sheets and metal corrugated sheets to over 120 countries and regions worldwide, serving construction, industry, agriculture, home appliances and infrastructure sectors. Please feel free to contact us for factory visits, free samples or project consultations.
Wanzhi Steel – Agricultural Greenhouse Project in Turkmenistan
550 tons PPGI Steel Coil to Azerbaijan
100 tons of Galvanized Coils to Saudi Arabia
144 ton Steel Wire to Spanish
Project of PPGI Roofing en Libya
100 tons of GL and PPGL in Solomon Islands
Customer Feedback
We have received positive feedback and high praise from global clients. Clients highly recognize our precise dimensional tolerance, reliable product quality and on-time delivery, maintaining long-term stable cooperative partnerships with Wanzhi Group.
Please feel free contact our sales team for technical specifications, brochures and prices of AZ50 & AZ55 GL steel!






