3105 H14 H24 H26 Color Coated Aluminum Coil
The 3105 Color Coated Aluminum Coil, available in H14, H24, and H26 temper conditions, stands as a versatile and durable choice in the realm of coated aluminum products. Manufactured with precision to balance performance and aesthetic appeal, this coil offers excellent corrosion resistance, enhanced mechanical properties, and superior color retention, making it a preferred material in multiple industries.
The 3105 aluminum alloy belongs to the 3xxx series, characterized by manganese as the primary alloying element. Known for its good corrosion resistance and moderate strength, 3105 possesses compositional qualities that make it an ideal substrate for color coating applications. When combined with tempering such as H14, H24, and H26, the mechanical properties are tailored to suit specific usage requirements ranging from impact resistance to formability.
The color coated aluminum coil involves a pre-treatment, primer coating, and finishing paint application on the surface of the aluminum substrate, providing an attractive, weather-resistant, and easy-to-clean finish. Thanks to advances in coating technology, it offers extended durability in demanding environments.
Functions and Advantages
The 3105 color coated aluminum coil delivers exceptional benefits:
- Enhanced Corrosion Resistance: Aluminum's natural oxide film is supplemented with coatings to resist oxidation, moisture, and chemical exposure
- Strong Yet Flexible: Different temper options allow a choice between higher strength and better formability, enabling complex shaping without cracking
- Weather and UV Protection: The coatings involve UV inhibitors, reducing fading and deterioration under prolonged sun exposure
- Lightweight with High Aesthetic Value: It provides an effective, attractive alternative to steel coatings with additional weight-saving advantages
- Eco-Friendly: Recyclable aluminum ensures sustainability and environmental safety
Temper Designations Explained: H14, H24, & H26
The temper conditions denote work hardening and heat treatment states of the coil, significantly influencing texture, strength, and flexibility.
| Temper | Description | General Characteristic |
|---|---|---|
| H14 | Strain Hardened, Quarter Hard | Good strength and formability, slightly rigid |
| H24 | Strain Hardened and Stabilized | Medium strength, better ductility than H14 |
| H26 | Strain Hardened and Fully Stabilized | Highest strength, less flexible than H14/H24 |
Choosing between these results in varying mechanical performance tailor-fit for different application needs.
Chemical Composition of 3105 Aluminum Alloy
The alloy composition determines core characteristics such as corrosion behavior and mechanical adaptability.
| Element | Content (%) |
|---|---|
| Aluminum (Al) | Balance |
| Manganese (Mn) | 0.8 – 1.2 |
| Iron (Fe) | ≤ 0.7 |
| Copper (Cu) | ≤ 0.3 |
| Silicon (Si) | ≤ 0.6 |
| Magnesium (Mg) | ≤ 0.2 |
| Others (Each) | ≤ 0.05 |
| Others (Total) | ≤ 0.15 |
The presence of manganese is essential for improving strength without hurting corrosion resistance.
Technical Specifications and Standards
The 3105 coated aluminum coils conform to high-quality industry standards, ensuring repeatable excellence for demanding customers. Technical parameters such as thickness, width, surface finishing, and coating thickness vary based on supplier capabilities and customer requirements, but generally fall within the ranges below:
| Specification | Typical Range / Value |
|---|---|
| Thickness (mm) | 0.15 – 1.2 mm |
| Width (mm) | 600 – 1650 mm |
| Coil Weight (kg) | 2,000 – 9,000 kg |
| Tensile Strength (MPa) – H14 | ≥ 120 MPa |
| Tensile Strength (MPa) – H24 | ≈ 140 MPa |
| Tensile Strength (MPa) – H26 | ≥ 160 MPa |
| Elongation (%) – H14 | 6 – 10 % |
| Elongation (%) – H24 | 4 – 8 % |
| Elongation (%) – H26 | 2 – 4 % |
| Coating Type | Polyvinylidene Fluoride (PVDF), Polyester (PE) or Silicon Modified Polyester (SMP) |
| Coating Thickness (μm) | 10 – 30 μm per side |
| Surface Finish | Smooth, Matte, or Embossed |
| Standard Implementation | ASTM B209, JIS H 4000 series, EN 485 |
Typical Applications of 3105 Cover Coated Aluminum Coil
Thanks to the excellent balance between mechanical strength, corrosion resistance, and color performance, these coils are superb candidates for various industries:
- Architectural and Construction: Facade cladding, roofing sheets, ceiling tiles, curtain walls, signage panels
- Household Appliances: Refrigerator panels, air conditioner outer shells, microwave oven housings
- Automotive and Transportation: Interior decorative parts and lightweight vehicle body panels
- Furniture and Interior Decorations: Wall panels, door skins, furniture cladding
- Advertising and Signage Boards: Weather-protected, color-customized exteriors
The temper selection (H14, H24, H26) is guided by specific use regarding structural rigidity, forming needs, and environmental stressors.
Coating Layer Details
The typical coating process follows stringent steps for ensuring optimal adhesion, longevity, and color retention: surface cleaning → chemical pre-treatment → primer coat → topcoat application → curing.
| Coating Layer | Description |
|---|---|
| Primer | Enhances adhesion and corrosion resistance |
| Topcoat | Outermost layer applying desired color and UV protection |
| Coating Thickness | Usually combined 15-30 μm |
| Typical Coating Types | PVDF, PE, SMP – chosen per environmental exposure level |
Different coatings offer varying strengths related to environmental resistance-PVDF is premium for far superior weathering while PE and SMP serve more budget-friendly options in less demanding contexts.
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