Alloy 3004 0.65mm Prepainted Aluminium Coil for Railway Carriage Ventilation Grilles
Engineered for demanding railway environments, this 0.65mm Alloy 3004 prepainted coil combines lightweight strength with exceptional corrosion resistance. The manganese-enhanced alloy delivers robust mechanical properties (tensile strength: 140-180 MPa), ensuring structural integrity in high-vibration settings. Pre-coated with high-performance PVDF or polyester finishes , it provides superior weather resistance, UV stability, and color retention for long-term exterior use. Ideal for ventilation grilles, its formability allows intricate shaping while maintaining rigidity . The coil’s uniform coating thickness (~16–25μm) guarantees consistent aesthetics and durability, reducing maintenance costs throughout the rail carriage lifecycle.
Key advantages include:
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High Strength-to-Weight Ratio
Lightweight yet structurally robust .
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Superior Corrosion Resistance
Withstands humidity, chemicals, and harsh environments .
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Excellent Formability
Easily shaped into complex grille designs without cracking
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Durable Pre-coated Finish
PVDF/PE coatings resist fading, scratches, and UV degradation.
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Low Maintenance Requirements
Retains appearance and function with minimal cleaning .
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Fire Safety Compliance
Meets railway flammability and smoke toxicity standards .
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Cost-Effective Production
Reduces fabrication time and finishing costs .
Application
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About Prepainted Aluminum Coil
Prepainted aluminum coil, which is produced with aluminum sheet or (aluminum coil) and processed by coating with color. In common sense,
there are two kinds of prepainted aluminum coil-PVDF and PE, which are widely used in aluminum plate, aluminum veneer, aluminum
honeycomb panels,aluminum ceiling, shingles, scrap, pop-top, electronics.
PVDF coatings are known for their durability and weather resistance. They provide a smooth and glossy finish, making them suitable for
architectural applications. PVDF coated aluminum coils are available in a wide range of colors and are often used for exterior cladding,
roofing, and signage.
PE coatings offer good UV resistance and color retention. They are commonly used for interior applications where extreme weather
resistance is not required. PE coated aluminum coils are available in a variety of colors and are used for indoor decorations, ceiling panels, and more.
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Product Parameters
| Product |
Prepainted Aluminum Coil / Color Coating Aluminum Sheet |
| Thickness |
0.2-3.0mm |
| Width |
30-2750mm (ultra-wide color coating aluminum sheet in coil) |
| Material |
1050, 1060, 1100, 3003, 3004, 3105, 5052, 5005, 5754, 5083, 6061,8011 etc |
| Temper |
O, H12, H14, H16, H18, H24, H26, H32, H34, etc |
| Inner Diameter |
405mm,508mm,610mm |
| Color |
RAL, Pantone Color Or As Alient’s Demand |
| Coating thickness |
PVDF Paint Coating: Not Less Than 25um |
| PE Paint Coating |
Not Less Than 18um |
| Packing |
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 |
3 Tons Per Specification |
| Delivery Time |
Within 30-45 Days |
| Loading Port |
Shanghai |
| Application |
Aluminum/Roofing/ACP/Roller/Shutter/Window/Roller Shutter/Door/AluminumCeiling/AluminumGrilling/AluminumDownspoutSystem/Home Appliance’s Plate/Body tank of cold chain truck/High speed rail/Aluminum pull ring/Food packaging/Outer packing case of cap |
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Product Advantages
1.High flatness: the surface is flat and smooth, without obvious defects such as unevenness, wavy deformation, indentation or bulging.
2.Uniformity of colour: The colour is uniform and consistent, with no obvious colour difference.
3.Strong coating adhesion: good adhesion between the coating and the aluminium coil substrate makes it difficult for the coating to flake, peel or lose paint.
4.Good weather resistance: PVDF coatings have a colour stability of more than 20 years compared to 10-15 years for polyester coatings. 5.Strong corrosion resistance: The natural oxidation layer of aluminium combined with a protective coating such as PVDF ensures long term durability in harsh environments.
6.Malleability: complex bending and forming without cracking.
Product Show
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