Aluzinc flat sheets consist of a steel substrate coated with an aluminum-zinc alloy. They offer good corrosion resistance, durability, and heat resistance for construction, automotive, appliance, and industrial applications. Wanzhi Group has a galvalume steel production line, cutting and profiling equipment, and supplies flat and corrugated sheets with AZ30–AZ150 g/m² aluminum-zinc coatings in various specifications and shapes.
- Thickness: 0.12–4.0 mm
- Width: 600–1,500 mm
- Aluminum-Zinc Coating Weight: AZ30–AZ150 g/m²
What Is Aluzinc Flat Sheet?
Aluzinc steel sheet, also known as galvalume steel sheet, is steel sheet coated with an aluminum-zinc alloy through a continuous hot-dip process. The coating typically contains approximately 55% aluminum, 43.4% zinc, and 1.6% silicon by weight. The aluminum-zinc coating combines the barrier protection of aluminum with the galvanic protection of zinc, providing good corrosion resistance, durability, and heat resistance.
- Steel substrate: Provides strength and formability. Common grades include DX51D, DX52D, DX53D, DX54D, S250GD, S280GD, S320GD, and S350GD.
- Aluminum-zinc coating: Protects the steel substrate and improves corrosion resistance and durability.
- Coating surface: Provides a metallic surface for further processing and fabrication.
- International standards: Common standards include EN 10346, ASTM A792/A792M, JIS G 3321, and GB/T 2518.
Wanzhi Aluzinc Steel Products for Sale
Wanzhi Steel produces aluzinc steel coils, flat sheets, strips, and corrugated sheets with AZ30–AZ150 g/m² aluminum-zinc coating. They offer good corrosion and heat resistance, withstanding temperatures above 300°C under suitable conditions. With proper use and maintenance, Aluzinc steel can provide a service life of 25 years or more.
- AZ30–AZ50: Suitable for general applications with moderate corrosion exposure.
- AZ60–AZ100: Suitable for roofing, cladding, and general construction and industrial applications.
- AZ120–AZ150: Suitable for applications requiring higher corrosion protection and long-term durability.
Specification
| Product Name | Galvalume/Aluzinc Flat Sheet |
|---|---|
| Base Material | Cold-rolled or hot-rolled steel |
| Coating Composition | Approx. 55% Al, 43.4% Zn, 1.6% Si |
| Steel Grades | DX51D, DX52D, DX53D, DX54D, S220GD, S250GD, S350GD, etc. |
| Thickness | 0.12–4.0 mm |
| Width | 600–1,500 mm |
| Length | Custom cut to required length |
| Aluminum-Zinc Coating Weight | AZ30–AZ150 g/m² |
| Standards | EN, ASTM, JIS, GB |
| Surface Treatment | Passivation, oiling, anti-fingerprint (AF), pre-painted, etc. |
| Processing Services | Leveling, cutting, punching, bending, embossing, profiling, etc. |
| MOQ | 10 tons |
| Trade Terms | EXW, FOB, CIF, CFR, etc. |
| Package | Standard export packaging, or as per your requirements |
Aluzinc Flat Sheet Prices
Aluzinc flat sheet prices vary by thickness, width, coating weight, steel grade, and order quantity. The typical price is USD 600–900 per ton. We keep standard specifications in stock for quick delivery, while customized products typically require 5–45 days for production. Please feel free to share your required specifications and quantity with us, and we can provide a more accurate quotation.
Galvalume Flat Sheet Manufacturing Process
- Steel Coil Preparation: Select cold-rolled steel coils according to the required grade and specifications.
- Cleaning and Surface Preparation: Clean the steel strip to remove oil, dirt, and surface oxides before coating.
- Hot-Dip Al-Zn Coating: Pass the prepared steel strip through a molten aluminum-zinc alloy bath to form the galvalume coating.
- Coating Control and Cooling: Control the coating weight, then cool the coated strip to stabilize the coating.
- Surface Treatment: Apply passivation or other surface treatments as required for surface protection and storage.
- Leveling and Cutting: Level the coated strip and cut it into flat sheets according to the required dimensions.
- Inspection and Packaging: Check dimensions, coating quality, and surface condition before packaging and shipment.
Advantages of GL Flat Sheet
- Excellent Corrosion Resistance: Galvalume provides strong corrosion protection through the combined effects of aluminum and zinc.
- Good Heat Resistance: The aluminum-rich coating offers good resistance to elevated temperatures.
- High Solar Reflectivity: The metallic surface reflects solar radiation and can help reduce heat absorption.
- Good Formability: Suitable steel grades can be cut, bent, stamped, and formed into different shapes.
- Uniform Metallic Appearance: The surface has a distinctive silvery metallic appearance.
- Long-Term Durability: The aluminum-zinc coating provides durable protection for the steel substrate under suitable conditions.
Aluzinc Flat Sheet Applications
- Construction: Roofing panels, wall cladding, building facades, ceilings, doors, and partitions.
- Appliance Manufacturing: Appliance panels, housings, and internal components.
- HVAC Systems: Ductwork and air-conditioning components.
- Industrial Equipment: Equipment panels, enclosures, and fabricated components.
- Agriculture: Greenhouse structures and agricultural equipment.
- Furniture and Lighting: Furniture components, lighting fixtures, and other fabricated products.
Galvalume Flat Sheet VS Galvanized Flat Sheet
| Item | Galvalume Flat Sheet | Galvanized Flat Sheet |
| Coating | Aluminum-zinc alloy coating, typically about 55% Al, 43.4% Zn, and 1.6% Si | Zinc coating |
| Corrosion Resistance | Excellent | Good |
| Heat Resistance | Higher, suitable for elevated-temperature applications | Good |
| Solar Reflectivity | High, helping reduce solar heat absorption | Generally lower |
| Formability | Good formability with suitable steel grades | Good formability with suitable steel grades |
| Weldability | Weldable with suitable processes and coating management | Generally weldable with suitable processes |
| Acidic Environments | May perform less favorably in some strongly acidic conditions | May perform better in certain acidic conditions |
How to Choose the Right Aluzinc Flat Sheet
- Consider the Environment: Assess humidity, salt exposure, pollutants, and other corrosion factors at the project site.
- Select the Coating Weight: Higher AZ coating weights generally provide greater corrosion protection under comparable conditions.
- Choose the Steel Grade: Select the grade according to required strength, formability, and fabrication processes.
- Choose the Thickness: Select thickness based on structural strength, stiffness, forming requirements, and application needs. Thickness alone does not determine corrosion resistance.
- Consider Surface Treatment: Passivation, oiling, or other suitable treatments can help protect the surface during storage and handling.
- Match the Application: Choose the appropriate combination of coating weight, steel grade, and thickness for roofing, cladding, building, industrial, or other applications.
Aluzinc Steel Sheet Manufacturer and Factory – Wanzhi Group
Wanzhi Group is a aluzinc coated steel manufacturer and supplier in China, with a factory in Boxing County, Binzhou, Shandong Province. The factory is certified to ISO 9001, ISO 14001, and ISO 45001 and equipped with galvalume, galvanized, prepainted, and zinc-aluminum-magnesium steel production lines, as well as an inspection laboratory and sample room. Wanzhi implements quality control from raw material inspection and process monitoring to finished product testing. Products are manufactured to ASTM, EN, JIS, and GB standards, with SGS and BV third-party inspections available upon request.
Quality Control & Inspection
Wanzhi Steel is equipped with precision galvalume production lines and high-precision slitting, leveling, lamination, and coating equipment. Each production line has a monthly capacity of up to 10,000 tons, supporting stable supply. We provide original Mill Test Certificates (MTCs) and inspection results for each order, covering dimensions, aluminum-zinc coating weight, surface quality, mechanical properties, formability, and chemical composition according to applicable standards.
Value-Added Services
As a professional coated steel supplier, Wanzhi steel provides customized value-added services, including cutting, stamping, leveling, punching, bending, forming, lamination, profile processing, and painting. Our production facilities also support hot-dip galvanizing, electrogalvanizing, pickling, and other specialized steel production processes.
Global Export Cases
To date, Wanzhi Group has exported hot-rolled and cold-rolled steel, GI, GL, PPGI, PPGL, PPAL, ZAM, and other coated steel products to 120+ countries and regions worldwide. We offer competitive prices, a wide product range, and customized solutions to meet diverse product requirements and help control project costs. We work with steel processors, builders, metal material suppliers, and other industry partners. Contact us to learn more about our products and export cases.
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 value feedback from our customers and their experience with Wanzhi products and services. Our team provides one-stop support from material selection and technical consultation to production and delivery, with 24-hour online assistance.
Aluzinc flat sheets offer good corrosion resistance, heat resistance, high solar reflectivity, and good formability, making them durable and widely used. Wanzhi supplies galvalume steel coils, roofing sheets, prepainted galvalume steel coils, and sheets, with customized solutions available. Factory visits and samples are available upon request. Feel free to leave us a message.