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When sourcing painted aluminum coils for construction projects, one of the first questions procurement professionals ask is: “What aluminum alloy grades do reliable painted aluminum coil suppliers
offer?” The right alloy grade directly impacts the coil’s durability, weather resistance, load-bearing capacity, and overall performance in building applications—from curtain walls and roofing to cladding
and decorative panels.
Reliable painted aluminum coil suppliers understand that construction projects have diverse requirements, so they typically stock and supply three core alloy grades tailored to different building scenarios.
Below, we break down each grade, its key properties, ideal uses, and why trusted suppliers prioritize them for construction clients.
As a pure aluminum alloy (99.6% aluminum content), 1060 is a staple offering from most painted aluminum coil suppliers for construction. It’s favored for projects where cost efficiency and formability
are top priorities, without compromising basic durability.
Excellent paint adhesion (critical for long-lasting color retention), high ductility (easy to bend, cut, and form into complex shapes), and good corrosion resistance in dry or mildly humid environments.
Its tensile strength ranges from 75-110 MPa, making it suitable for non-structural components.
Indoor decorative panels, ceiling materials, wall cladding for low-rise buildings, and secondary components like trim and edging. It’s also a popular choice for projects with tight budgets that don't
require extreme weather resistance.
1060 aluminum coils are easy to process and paint, ensuring consistent coating quality across large orders. Reliable suppliers often offer 1060 with PE or PVDF coatings, adapting it to both indoor and
sheltered outdoor spaces.
3003 is an aluminum-manganese alloy, widely regarded as the most versatile grade for construction-focused painted aluminum coil suppliers. It balances strength, corrosion resistance, and cost—making it
the go-to choice for most outdoor building components.
Enhanced tensile strength (110-150 MPa) compared to 1060, superior resistance to atmospheric corrosion (ideal for rainy, coastal, or industrial areas), and excellent weldability. The manganese addition also
improves its structural stability, preventing warping under temperature fluctuations.
Roofing panels, exterior wall cladding for mid-to-high-rise buildings, gutter systems, and sunshades. It’s particularly popular in coastal regions, as it resists saltwater corrosion better than pure aluminum a
lloys.
3003’s versatility means it works with both PE (indoor/outdoor) and PVDF (high-performance outdoor) coatings. Trusted painted aluminum coil suppliers often highlight 3003 as their “all-around” grade
suitable for 80% of construction projects—from residential complexes to commercial malls.
For construction projects requiring maximum durability, 5052 (an aluminum-magnesium alloy) is the premium grade offered by top painted aluminum coil suppliers. It’s designed for harsh outdoor
conditions, structural components, or projects where longevity is non-negotiable.
Exceptional tensile strength (190-260 MPa), outstanding corrosion resistance (including saltwater and chemical exposure), and excellent impact resistance. It maintains its shape even in extreme
temperatures, from freezing winters to scorching summers.
High-rise building curtain walls, offshore construction (e.g., coastal hotels, marine facilities), industrial plant exterior cladding, and areas prone to heavy rain, wind, or physical impact. It’s also used for
structural components that require both strength and aesthetics.
While 5052 is more costly than 1060 and 3003, reliable painted aluminum coil suppliers offer it for clients prioritizing long-term performance over upfront costs. It pairs perfectly with PVDF coatings (the
gold standard for outdoor durability), ensuring a service life of 20+ years.
Reliable painted aluminum coil suppliers won’t just list alloy grades—they’ll help you select the right one based on your project’s specific needs:
- Project Environment: Indoor vs. outdoor? Coastal vs. inland? Industrial vs. residential? Suppliers will match alloy corrosion resistance to your location.
- Component Function: Structural (e.g., curtain walls) vs. decorative (e.g., ceiling panels)? 5052 for structural, 1060 for decorative.
- Budget: 1060 for cost-sensitive projects, 3003 for balanced value, 5052 for premium durability.
- Coating Compatibility: Ensure the alloy works with your chosen coating (PE/PVDF/FEVE/NANO). Suppliers can advise on optimal pairings.
Not all painted aluminum coil suppliers offer the same quality of alloys. Trusted suppliers source prime aluminum ingots, conduct strict quality checks (e.g., chemical composition testing, tensile strength
verification), and provide certification for each alloy grade. This ensures your painted aluminum coils meet construction industry standards (e.g., GB/T 3880.3-2022, AAMA 2605) and perform as expected.
If you’re asking, “What aluminum alloy grades do reliable painted aluminum coil suppliers offer for construction projects?” the answer should include 1060, 3003, and 5052—tailored to your projects
unique needs. Ready to dive deeper? Contact a trusted supplier today to discuss your alloy requirements and get a customized quote.
OUR ADVANTAGES
Smoothness
There is no residual stress on the surface and no deformation after shearing
Weather resistance
The paint pattern made by roller coating and high temperature baking has high gloss, good color stability and little color difference change
Decorative
There is a fresh natural beauty, the pattern is casual and do, give customers a wide range of personality choices, can enrich the culture of the product, give people more beautiful enjoyment.
Environmental Protection
Resistant to salt, alkali and acid rain corrosion, will not corrode or produce toxic bacteria, does not release any toxic gases.
Mechanical
ACP after composite with plastic and adhesive. With the flexural and flexural strength required by the decorative plate, in the four seasons climate, the change of wind pressure, temperature, humidity and other factors will not cause bending, deformation,expansion and so on.
