3003 aluminum coil belongs to the 3000 series aluminum alloy, with manganese (Mn) content ≈ 1.0% and aluminum content ≥ 96.8%. This alloy is known for its excellent corrosion resistance, good formability, and higher strength compared to 1000 series aluminum, along with good thermal conductivity and weldability. 3003 Aluminum Coil is widely used in construction, transportation, industrial manufacturing, and kitchenware.
Description
Yutwin New Materials specializes in the production of aluminum coils and sheets in a wide range of alloys, grades, and specifications, offering stable quality, flexible customization, and reliable supply to meet the diverse needs of different industries.
Features
- Aluminum–manganese alloy (Al–Mn)
Belongs to the 3xxx-series aluminum alloys, with manganese as the main alloying element, offering improved strength over pure aluminum.
- Medium mechanical strength
Stronger than 1000-series aluminum, suitable for general structural and load-bearing applications.
- Excellent corrosion resistance
Provides reliable resistance to atmospheric, marine, and industrial environments.
- Good formability and workability
Soft and ductile, easy to roll, bend, stamp, and deep-draw, suitable for thin-gauge processing.
- Good thermal and electrical conductivity
Suitable for heat dissipation and low-load electrical applications.
- Smooth and uniform surface finish
Ideal for anodizing, painting, coating, embossing, or film lamination.
- Good weldability
Compatible with TIG, MIG, and spot welding, enabling reliable fabrication.
- Lightweight material
Low density supports weight reduction in structural and decorative applications.
Specifications
| Parameter | Description |
|---|---|
| Alloy | 3003 |
| Chemical Composition (%) | Al ≥ 96.8, Mn 1.0 – 1.5, Cu ≤ 0.10, Fe ≤ 0.7, Si ≤ 0.6, Zn ≤ 0.10, Ti ≤ 0.15, Others ≤ 0.15 |
| Temper | H14, H18, H24, O (Soft) |
| Thickness Range | 0.2 – 6.0 mm (customizable) |
| Width | Customizable (20 – 2000 mm) |
| Coil Weight | Customizable |
| Inner Diameter (ID) | 150 / 300 / 505 mm |
| Surface Finish | Mill Finish, Bright, Brushed, Coated, Film Laminated (optional) |
| Standard | ASTM B209 / EN AW-3003 / GB/T 3880 |
Common Aluminum Surface Treatments
Polishing
Polishing uses mechanical grinding, chemical, or electrochemical methods to improve the smoothness and brightness of aluminum surfaces. Polished aluminum features a high-gloss finish and excellent decorative appearance.
Brushing
Brushing is a surface treatment process that creates fine, directional textures on aluminum using abrasive belts or brushes. The brushed surface provides a refined metallic appearance while helping conceal minor scratches.
Coating
Coating applies a protective coating onto the aluminum surface through powder coating, liquid spraying, or other coating methods. It provides excellent weather resistance, corrosion protection, and a wide range of color options. Coated aluminum offers both decorative appeal and long-term durabilit.
Anodizing
Anodizing is an electrochemical process that forms a dense oxide layer on the aluminum surface, improving corrosion resistance, wear resistance, and surface hardness. The oxide layer can also be colored to achieve various finishes.
Sand Blasting
Sand blasting uses high-speed abrasive particles to impact the aluminum surface, creating a uniform matte texture. This process provides a soft metallic appearance, reduces fingerprint marks, and improves coating adhesion for subsequent finishing processes.
Embossing
Embossing is a process that forms raised or recessed patterns on aluminum surfaces through rolling or stamping. Common patterns include stucco, diamond, and wood grain textures. Embossed aluminum offers excellent decorative effects, scratch resistance, and certain anti-slip properties.
Applications
- Construction & Decoration
Roofing, curtain walls, ceilings, decorative panels.
- Transportation
Shipbuilding, automobile body panels, trailer panels.
- Industrial Manufacturing
Stamped parts, sheet metal components, equipment enclosures.
- Kitchenware
Cookware, food containers.
- Heat Dissipation & Conductivity
Heat exchangers, heat sinks.
