Samples available for most products
5% discount on bulk purchases
Global Sea Freight Services
Inquiries answered within 24 hours
We offer high-quality 5A03 aluminum sheets, laser-cut with precision, available in various thicknesses from 0.2mm to 2.0mm, and support custom sizes. CE certification is included.
5A03 Aluminum Sheet is a corrosion-resistant aluminum-magnesium alloy belonging to the 5000 series. Known for its excellent resistance to rust, reliable weldability, and balanced mechanical performance, this alloy sheet is widely used in industries where lightweight structures and long-term durability are essential. It is particularly suitable for applications in transportation systems, construction structures, marine components, and various metal fabrication parts that require strength combined with good formability.
As a non-heat-treatable aluminum alloy, 5A03 aluminum sheet gains its strength primarily through cold working. The alloy contains a relatively high magnesium content, which significantly improves corrosion resistance and enhances structural strength while maintaining good ductility. This makes it ideal for components that require bending, forming, or welding during manufacturing.
One of the key advantages of 5A03 aluminum sheet is its excellent welding performance. Compared with some similar alloys such as 5754 aluminum, the presence of a small amount of silicon improves weldability, allowing the material to perform well in processes such as gas welding, TIG welding, argon arc welding, spot welding, and roll welding. Because of this property, it is commonly selected for welded structures and assemblies operating in demanding environments.
In addition to its mechanical strength and corrosion resistance,the 5A03 aluminum sheet also offers good processing characteristics. The alloy demonstrates excellent plasticity in the annealed condition and maintains acceptable formability after partial work hardening. These characteristics make it suitable for manufacturing cold-formed parts, welded components, and medium-load structural elements used in industrial equipment and transportation systems.
Another important advantage of 5A03 aluminum sheet is its resistance to environmental factors. The material performs reliably in humid, outdoor, or marine environments, maintaining stable mechanical properties under varying temperatures and weather conditions. Its smooth surface also allows for further processing such as coating, anodizing, or coloring, which expands its applications in decorative and architectural fields.
Because of its combination of strength, corrosion resistance, and weldability, the 5A03 aluminum sheet is used in a wide range of industries, including:
Railway and urban transportation sound barrier panels, including high-speed rail, subway, and light-rail noise control systems
Vehicle and ship structural components that require lightweight yet durable materials
Metal fabrication parts such as fuel tanks, brackets, equipment housings, and lighting poles
Architectural structures including exterior wall panels, building facades, and cladding systems
Industrial containers and structural components operating in liquid or corrosive environments
| Product Name | 5A03 Aluminum Sheet |
| Alloy Series | 5000 Series (Aluminum-Magnesium Alloy) |
| Temper | O, H32, H34 and other custom tempers |
| Thickness | 0.15 mm – 250 mm |
| Width | Up to 2650 mm |
| Length | Custom length available |
| Elongation | Approximately ≥14% (depending on temper) |
| Standards | GB/T 3190, GB/T 3880, ASTM, JIS |
| Minimum Order Quantity | 500 kg |
| Custom Processing | Cutting, small-size plates, and special dimensions available |
| Certifications | ISO, CE |
