Product Description
Product Description:3105 aluminum alloy (Al-Mn-Mg series) has become the world's first choice for building exterior walls and roof coverings due to its high strength, corrosion resistance and light weight. The specification design with a thickness of 1.4 mm and a width of 1100 mm takes into account both economy and construction efficiency, and is suitable for diverse climates from tropical rainforests to extremely cold regions. This paper systematically analyzes its core uses, international benchmark cases and future technical directions.
Weather Resistance:
Salt spray resistance≥ 3000 hours (ISO 9227), temperature difference resistance -40°C~120°C (ASTM D2247);
UV resistant (QUV 2000 hours, ΔE<2, AAMA 2605 standard).
Lightweight & Economical:
The density is 2.72g/cm³ (1/3 of the weight of color steel), and the transportation and installation cost is reduced by 25%;
Processability:
The elongation is ≥12%, and it supports rolling, punching, and bending (R angle ≥3t);
The 1100mm width reduces the splicing seam and improves water resistance.
Environmental Compliance:
100% recyclable, recycled aluminium ≥ 75% (EU EN 1396 standard);
Meets the LEED/BREEAM requirements for green building materials.
Basic Info.
| Product |
3105 Aluminum alloy 1.4mm/1100mm for exterior wall covering, roofing material |
| Thickness |
0.5-2.5mm |
| Width |
500-1500mm |
| Material |
3105 |
| Temper |
O, H12, H14, H16, H18, H24, H26, H32, H34, etc |
| Inner Diameter |
405mm,505mm,150mm,etc. |
| Color |
Silver White Black Red Blue Green Custom - matched colors according to Pantone or RAL color systems |
| Coating thickness |
PVDF Paint Coating: Not Less Than 25um |
| |
PE Paint Coating : Not Less Than 18um |
| Packing |
Export Standard Wooden Pallets (Eye To Wall,Eye To Sky) |
| Payment Terms |
L/C at sight or 30% T/T in advance as deposit, and 70% balance against the B/L copy. |
| MOQ |
1Ton Per Specification |
| Delivery Time |
Within 30-45 Days |
| Loading Port |
Shanghai,Ningbo,Qingdao,Tianjin Port and Etc |
| Application |
commercial building roofs, industrial envelopes, photovoltaic substrates, perforated shading systems |
Product Advantages
Applications & Benchmarking Cases
1. Commercial & Public Buildings
Case 1: Dubai Mall Expansion (UAE)
Solution: 3105 alloy corrugated plate roof (1.4mm thick), reflectivity 85%, cooling energy consumption reduced by 20%;
Data: Compared with traditional steel, the weight is reduced by 60%, and the anti-sand and dust wear life is increased by 3 times.
Case 2: Berlin Hauptbahnhof (Germany)
Innovation: Perforated sunshade curtain wall (aperture 5mm), noise reduction coefficient NRC 0.7, DGNB platinum certification.
2. Industry & Infrastructure
Case 3: Tesla Gigafactory Berlin (Germany)
Design: Vertical seam roof (1100mm width), wind pressure resistance 2.5kPa, construction speed increased by 40%;
Benefits: Rooftop integrated photovoltaic brackets, annual power generation of 1.2GWh.
Case 4: Singapore Changi Airport Cargo Terminal
Technology: Alloy 3105 PVDF coating (RAL 9006), resistant to jet fuel vapor corrosion, maintenance intervals extended to 10 years.
3. Climate Extremes Adaptation
Case 5: Polar Research Centre in Tromsø, Norway
Performance: -50°C embrittlement resistance, freeze-thaw cycle resistance (ASTM C666) up to 300 times;
Eco-friendly: carbon footprint ≤ 5kg CO2/m² (hydroelectric aluminum process).
Market Trends & Future Applications
1. Current drivers
Green building policy: The European Union's Building Energy Efficiency Directive (EPBD) mandates a recycling rate of ≥70% for building materials;
Cost-sensitive markets: Emerging economies (Southeast Asia, Middle East) are accelerating industrialization, with annual demand growth of 12%;
Replace traditional materials: Aluminum will account for 30% of the roofing market by 2025 (replacing color steel/asphalt shingles).
2. Future technology direction
Photovoltaic integration:
3105 alloy substrate thin-film photovoltaic (CIGS), the efficiency of the Heliatek pilot project in Germany reached 15%;
Example: SolarCity warehouse roof in the Netherlands, with an annual power generation income of $12/m².
Smart Coating:
Thermochromic coating (developed by PPG in the United States), reflectivity >80% in summer and >50% heat absorption in winter;
Self-cleaning nano-coating (contact angle > 150°), reducing maintenance costs by 70%.
Modular prefabrication:
BIM CNC bending, error < 0.5mm (e.g. Boliden Mine Modular Camp, Sweden).
3105 aluminum alloy redefines the boundaries of architecture with science and sustainability - from the polar region to the equator, from traditional roofs to power generation curtain walls, it is not only a material, but also the cornerstone of the green transformation of future cities.
The "aluminum" gold age of the building skin
Get a customized solution to give your project lightweight and sustainable genes now!
Advanced Automation System
We have two plants of 160,000centiare with eight large automatic roller coating lines for aluminium sheet material products.
Strict Quality Control
Dingang actively implements technical innovation,which based on ISO9001.The painted aluminum products are all passed audit by BV,SGS,ITS And Etc.
Better Service
Over hundreds of Countries export experience and excellent after-sales service.We satisfy the demands meanwhile also obtain public reputation and praise from customers.
Certifications
Relevant certificates:
FAQ
Factory FAQ
Q:What kind of Changzhou Dingang company?
A:Changzhou Dingang is a professional manufacturer of aluminum productions and has its own warehouse. We are working hard to open up the international market.
Q:Can you accept small orders?
A:Depend on our inventory, normally we accept small order.
Q:How to guarantee the quality?
A:Every production procedure will be tested and evaluated. From the selection of raw materials to packaging for shipment. Only products that pass all tests will be delivered for export.
Q:Can you provide free samples?
A:Yes, we can provide free sample for testing. Buyer should bear all the shipping costs.
Q:What is your factory advantage?
A:We are manufacturer. We have professional quality control engineers to ensure high quality, zero defect products to our customer. Our professional sale team and competitive price will help customer to finish order in short time. Save Time!
Q;What is package?
A:Standard Export Packing(PVC+waterproof paper +sea-worthy wooden packing).
Q:How about the aluminum coil product delivery time?
A:For color samples , we can offer you within 3 working days.
30 - 45 days for mass production after getting order confirmation and down payment.
Q:What is the payment term?
A :30% T/T deposit, 70% balance T/T or L/C irrevocable payment before shipment.
Q:Can we visit your factory if we go to China?
A:Warmly welcome to visit our factory, we will show you around.
Packaging & Shipping
The packaging and shipping of prepainted aluminum coils are crucial to ensure that the coils arrive at their destination in good condition and are ready for use.Proper packaging and shipping practices help maintain the
quality of prepainted aluminum coils and ensure that they reach their destination in optimal condition.
Audited Supplier 
){kind=link}