Pre painted aluminum coating coil 6063
Pre Painted Aluminum Coating Coil 6063 is a high-performance aluminum product that combines the lightweight, corrosion-resistant properties of aluminum with a durable and decorative paint finish. Widely used across diverse industries, it offers an excellent balance of strength, workability, and aesthetics, making it an ideal choice for architectural, automotive, and various manufacturing applications.
What is Pre Painted Aluminum Coating Coil 6063?
Pre Painted Aluminum Coating Coil 6063 is an aluminum coil manufactured from aluminum alloy 6063, which features superior corrosion resistance and excellent surface finish. This coil undergoes a pre-painting process where the aluminum strip is coated on one or both sides with high-quality paint. The paint provides additional protection against environmental factors such as UV radiation, humidity, and chemical exposure.
The alloy 6063 is primarily known for its good formability and finish, enabling the coil to be shaped into states like sheets or profiles without damage to the coating. It is especially recognized in architectural extrusions and building envelope manufacturing due to its durability and aesthetic potential.
Functions of Pre Painted Aluminum Coating Coil 6063
- Corrosion Resistance: The combination of aluminum 6063’s inherent resistance with a durable powder or liquid paint coating offers long-lasting protection in outdoor and aggressive environments.
- Aesthetic Appeal: The coating can be finished with various textures, colors, and gloss levels allowing diverse design options targeting modern architectural styles.
- UV Resistance: High-performance coatings maintain color stability and reduce chalking under prolonged sun exposure.
- Lightweight and Strong: 6063 alloy provides structural strength suitable for shaping into architectural profiles without adding excessive weight.
- Weather Resistance: Fixtures coated with this product are resilient against moisture, salt spray, and varying temperatures.
- Ease of Fabrication: It allows bending, cutting, and punching with minimal risk of coating cracking, retaining surface integrity after processing.
Common Applications
Pre Painted Aluminum Coating Coil 6063 is used in several sectors requiring both functionality and design, such as:
- Roofing and siding panels
- Curtain walls and window frames
- Automotive trim and decorative strips
- HVAC units and ventilation covers
- Household appliances exterior panels
- Signage and advertising frames
- Transportation parts, such as railway and aircraft components
Its adaptability allows direct use in extrusions or roll forming, reduction in finishing times for fabricated parts, and extended life cycle in high-exposure conditions.
Technical Specifications
| Parameter | Specification | Remarks |
|---|---|---|
| Alloy | 6063 | Common structural aluminum alloy |
| Temper | T5, T6 | Artificially aged for strengthening |
| Thickness | 0.2 mm – 1.2 mm | Available in multiple thickness cuts |
| Width | 1000 mm – 1500 mm | Standard coil widths |
| Paint Type | PVDF, Polyester, SMP | Varied depending on environmental need |
| Coating Thickness | 15 – 30 microns (front), 7 – 15 microns (back) | Front-facing coating is thicker |
| Surface Finish | Matte, Glossy, Textured | Based on customer requirement |
| Tensile Strength | 130 – 230 MPa | In temper conditions noted |
| Elongation at break | ≥ 8% | Good ductility preserved |
| Specific Gravity | Approx. 2.7 g/cm³ | Material density |
| Operation Range | Outdoor and indoor use all climates | Function-oriented coatings |
Chemical Composition of Alloy 6063
The chemical composition directly influences the physical performance and paint adherence characteristics:
| Element | Percentage (%) | Permissible Range |
|---|---|---|
| Aluminum (Al) | Balance | — |
| Silicon (Si) | 0.2 – 0.6 | Contributes to castability and corrosion resistance |
| Iron (Fe) | ≤ 0.35 | Iron content impacts strength but should be limited |
| Copper (Cu) | ≤ 0.1 | Helps with strength control but minimized for formability |
| Manganese (Mn) | ≤ 0.1 | Improves corrosion resistance and mechanical properties |
| Magnesium (Mg) | 0.45 – 0.9 | contributor to strength in this alloy |
| Chromium (Cr) | ≤ 0.1 | Adds corrosion resistance |
| Zinc (Zn) | ≤ 0.1 | Traces allowed, limited to avoid embrittlement |
| Titanium (Ti) | ≤ 0.1 | Helps control grain size |
All combined permit outstanding extrusion quality and finish appearance, suitable for painting.
Tempering Conditions for 6063 Alloy
The temper reflects how the material is mechanically processed and heat treated to achieve certain strength and performance attributes.
| Temper | Description | Characteristics |
|---|---|---|
| T4 | Solution heat-treated and naturally aged | Good formability, medium strength |
| T5 | Cooled from elevated temperature shaping and artificially aged | Medium to high strength, better for structural |
| T6 | Solution heat-treated and artificially aged | Highest strength and hardness, medium formability |
For pre-painted coils, T5 and T6 are commonly used because they offer a good balance of mechanical strength with adequate surface tension for coating adhesion.
Implementation Standards
Pre Painted Aluminum 6063 coil production and testing comply with international regulations for quality, consistency, and performance:
| Standard | Description |
|---|---|
| ASTM B221 | Specification for aluminum and aluminum-alloy extruded bars, rods, wire, profiles, and tubes |
| ASTM B209 | Specification for aluminum and aluminum-alloy sheet and plate |
| AAMA 630 | Voluntary performance specification for coil and sheet applied coatings |
| ISO 527, ISO 4582-2 | Testing methods related to paint adhesion and gloss retention |
| EN 1396 | Aluminum and aluminum alloy sheets for general engineering |
These standards guarantee consistent chemical makeup, mechanical properties, and durable coating application essential for various end uses.
Advantages of Choosing Pre Painted Aluminum Coil 6063
- Superior durability with long-lasting paint finish that reduces maintenance needs
- Environmental protection through corrosion resistance and UV stability
- Flexibility in design including textures, color ranges, and gloss levels
- Cost-effectiveness by cutting down post-processing and protective painting
- Improving recyclability since aluminum is 100% recyclable without losing properties
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