Alloy 3003 PVDF Painted Aluminium Sheet
In the versatile world of coated aluminum sheets, the Alloy 3003 PVDF Painted Aluminium Sheet stands out as a remarkable blend of performance, aesthetics, and durability.
What is Alloy 3003 PVDF Painted Aluminium Sheet?
Alloy 3003 is a non-heat-treatable aluminum alloy primarily alloyed with manganese (approximately 1.0-1.5%), providing moderate strength and excellent corrosion resistance. When coated with PVDF (Polyvinylidene Fluoride) paint—a fluorocarbon-based coating renowned for UV resistance and weatherability—this aluminum sheet transforms into a high-performance material tailored for architectural and industrial uses.
Functional Attributes
1. Superior Corrosion Resistance
The intrinsic corrosion resistance offered by aluminum 3003 alloy is enhanced by the PVDF coating. This double layer of protection allows the material to withstand harsh environmental conditions such as UV radiation, acid rain, and salt spray, making it ideal for outdoor applications.
2. Excellent Mechanical Properties
With a manganese content that strengthens the alloy without compromising ductility, Alloy 3003 achieves a balance between strength and formability. Depending on its temper state, the mechanical strength varies—allowing for customization based on the application’s requirements.
3. High Weatherability and Color Stability
PVDF coatings conform to standards like ASTM D3363 and AAMA 2605, ensuring long-lasting color retention and gloss under prolonged exposure to weather elements. Available in a range of colors and gloss levels, these sheets also enhance building aesthetics.
4. Low Maintenance and Lightweight
Requiring minimal upkeep, coated 3003 aluminium sheets reduce lifecycle costs. Plus, their lightweight nature offers advantages in structure design, transportation, and installation, especially interesting for cladding and roofing applications.
Technical Specifications and Parameters
| Parameter | Details |
|---|---|
| Alloy Designation | Aluminum Alloy 3003 |
| Chemical Composition (% wt) | |
| - Aluminum (Al) | Remainder (approx. 96.65-99.05%) |
| - Manganese (Mn) | 1.0 – 1.5 |
| - Copper (Cu) | ≤ 0.10 |
| - Iron (Fe) | ≤ 0.70 |
| - Silicon (Si) | ≤ 0.6 |
| - Zinc (Zn) | ≤ 0.10 |
| - Magnesium (Mg) | ≤ 0.05 |
| - Titanium (Ti) | ≤ 0.20 |
| Temper | H14 (Hard Oiled), H24 (Strain Hardened + Partial Anneal) |
| Thickness Range | 0.2mm – 1.2mm |
| Width | Usually 1000mm–1500mm |
| PVDF Coating Thickness | 25-30 microns |
| Paint Standards | ASTM D523 (Gloss), ASTM D822 (Weathering), AAMA 2605 |
| Mechanical Properties (Typical in H14 Temper) | |
| Tensile Strength | 130-180 MPa |
| Yield Strength (0.2% offset) | Approx. 85-125 MPa |
| Elongation at Break | 10-18% |
Implementation Standards
Adherence to international standards ensures suitable quality for demanding environments:
- ASTM B209: Governs the welded and seamless aluminum and aluminum-alloy sheet and plate qualities.
- AAMA 2605: Regulatory standard defining the durability and performance metrics for high-performance organic coatings used on aluminum sheet.
- ISO 6361-1: Specifies requirements for the chemical composition, mechanical characteristics, and fabrication of aluminum alloy sheets.
- PVDF Coating Industry Norms: Coatings typically meet UV resistance tests per ISO 11507 and guarantee minimum 20 years’ life in moderate climates.
Alloy Tempering and Its Effects
The temper in which the aluminum sheet is supplied dramatically influences its workable characteristics and mechanical strength:
H14 – Strain Hardened (Cannot be heat treated)Medium-hard condition offering moderate strength combined with good formability. Often used where bending and moderate shaping are needed without cracking.
H24 – Partial AnnealedSlightly softened temper to improve ductility; useful in intricate bending jobs or processes requiring higher formability.
Selecting the appropriate temper is essential for applications ranging from façade cladding panels to decorative interior walls, contributing to performance in installation and structural reliability.
Applications of Alloy 3003 PVDF Painted Aluminium Sheet
Thanks to its properties, Alloy 3003 PVDF aluminum sheets excel in many extensive fields:
- Architectural Cladding and Facades: Their durability, weather resistance, and aesthetic finish with smooth surfaces make them excellent for modern building exteriors.
- Signage and Graphic Panels: Color retention and paint adherence ensure lasting promotional displays and identification panels.
- Roofing Systems: Lightweight with excellent corrosion resistance through harsh weather exposure on roofing assemblies.
- Elevator Cars and Public Transit: Where robustness coupled with flair is required, this material serves well for interior panels.
- Appliances and Furniture: Resistant to scratches and stains owing to the PVDF coating, suitable for decorative as well as protective finishes on home or office furnishings.
- Industrial Applications: Heat exchangers, packaging trays, and equipment housings frequently use 3003 due to its corrosion resistance and pie-alike workability.
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