Builders and architects often use aluminum 3003 for exterior cladding and curtain-wall panels. This alloy is favored for its formability and low cost. However, for projects needing more strength and durability, especially in humid or coastal areas, aluminum 3104 becomes a superior option. This article explains why 3104 fits modern facade needs, details its metallurgical advantages, and shows its relevance to Vietnam’s construction market.
Aluminum 3104: What Makes It Different
Aluminum 3104 stands out due to two key alloying elements: manganese (Mn) and magnesium (Mg).
- Manganese, at around 1.0%, boosts strength while maintaining ductility. It refines the alloy’s microstructure and limits dislocation movement. As a result, it increases tensile strength and improves resistance to deformation under load.
- Magnesium, ranging from 0.3% to 0.8%, adds solid-solution strengthening. Additionally, it enhances corrosion resistance, especially when paired with manganese. It also ensures the alloy remains easy to shape and bend.
Together, these elements create a balanced alloy. 3104 sits between soft, highly formable alloys and stronger structural ones. Consequently, it offers a mix of stiffness, durability, and manufacturability—perfect for facade panels that must stay flat and attractive for decades.

Technical Benefits for Cladding
When choosing cladding materials, specific qualities are crucial. Aluminum 3104 excels in these areas:
- Higher Strength and Rigidity: Compared to other 3xxx alloys, 3104 resists denting, wind loads, and sagging better. This leads to fewer visual flaws and lower maintenance costs over time.
- Good Corrosion Resistance: In Vietnam’s humid and coastal climates, the manganese-magnesium mix helps 3104 fight oxidation and environmental damage effectively.
- Easy Fabrication: Contractors can bend, roll, and form 3104 with standard tools. Furthermore, it welds and fastens well, eliminating the need for special processes.
- Finish Compatibility: 3104 works with paints and anodizing. However, for consistent color and adhesion, proper surface preparation and a pre-production finish test are essential.
- Sustainability: Like other aluminum alloys, 3104 is recyclable. Therefore, using recycled content reduces carbon footprints and supports green building goals.
Practical Uses in Facade Systems
Aluminum 3104 is ideal for applications needing both beauty and strength:
- Cladding Panels and Rainscreens: Its flatness and resistance to wind-induced oilcanning make it great for large panels.
- Curtain-Wall Skins: Use 3104 for decorative, non-structural skins to minimize visible deformation.
- Composite Panels: As an outer layer, 3104 provides durable weather resistance and a stable base for coatings.
- Trim and Flashings: Its formability and strength suit trim, flashings, and soffits perfectly.
This versatility allows architects to use larger spans or thinner gauges. As a result, they achieve the same visual effect with better long-term performance.


Why 3104 Fits Vietnam’s Climate and Market
Vietnam’s tropical and coastal conditions challenge building envelopes. Heavy rain, high humidity, and salt air can cause corrosion and fading. Here’s how 3104 helps:
- It resists corrosion, slowing surface wear and staining.
- Its stiffness prevents deformation from heat cycles and wind.
- It supports modern finishes, meeting high-end design needs while lasting longer.
Moreover, Vietnam’s construction market values cost-effective, reliable materials. 3104 delivers higher performance without changing fabrication methods or supply chains, making it a practical choice.
Conclusion
Aluminum 3104 combines strength, corrosion resistance, and easy manufacturing. For Vietnam’s modern buildings, especially in coastal or humid areas, it outperforms older alloys. Architects enjoy cleaner facades. Contractors keep familiar workflows. Owners save on maintenance and gain lasting value. Therefore, consider 3104 for your next project.
About Our Company
At MinhDung Holdings , we partner with CAG, a leading facade systems provider in Vietnam. We supply high-quality 3104 aluminum, offer fabrication advice, and ensure reliable delivery. Our team guarantees consistent quality and competitive pricing to fit your budget. Additionally, we provide technical support to enhance performance.
Ready to try 3104? Contact us for datasheets, finish samples, and a tailored consultation.
Phone/WhatsApp: +84 373 486 719 – Mr. Kevin Nguyen




