News

Title

In the field of traffic safety infrastructure, road signs play an essential role. Their clarity, durability, and reliability are directly linked to driving safety.

Why Choose Aluminum Discs for Traffic Signs?

When selecting materials for traffic sign substrates, other common alternatives include galvanized steel sheets and plastics such as FRP. Aluminum discs stand out and have become the industry standard for the following irreplaceable advantages:

1. Excellent Anti-Rust Performance

Steel materials exposed outdoors-especially in humid regions or areas where salt is used for de-icing-are extremely prone to rusting. Aluminum discs naturally offer high corrosion resistance.
The 3003 alloy, in particular, forms a dense oxide layer in the atmosphere, providing self-protection and ensuring long-term clarity of the sign surface for many years or even decades.

2. Lightweight and Easy to Install

With the same structural strength, aluminum's density is only about one-third that of steel.
Traffic signs made from aluminum discs are therefore much lighter, reducing transportation costs and lowering the physical burden and safety risks for installation workers. In most cases, no heavy lifting machinery is required.

3. Ideal Surface for Reflective Films

The core function of traffic signs is reflection and warning. High-performance reflective films require a smooth, flat, and chemically stable surface for optimal adhesion and reflectivity.
Aluminum discs produced through precision stamping and surface processing offer excellent flatness, allowing reflective films to bond perfectly eliminating bubbles and wrinkles while maintaining uniform retroreflectivity.

4. Complete Recyclability

Aluminum is 100% recyclable. When old or damaged signs need replacement, the aluminum base material can be recycled at a high value. This feature not only supports environmental sustainability but also provides economic benefits for traffic facility maintenance.

Details of 3003 Aluminum Discs

3003 aluminum discs belong to the aluminum-manganese alloy family. The main alloying element is manganese (Mn), with a content of 1.0%-1.5%. Manganese significantly improves the strength of pure aluminum while maintaining excellent plasticity and corrosion resistance.

"H14" indicates a half-hard temper, which offers an ideal balance between strength and formability.

3003 Aluminum circles production processes include both CC (continuous casting) and DC (direct casting). CC material is mainly used for road signs, while DC materials are commonly used for cookware production. Thickness consistency and diameter can be customized according to customer requirements.

In actual traffic sign manufacturing, 3003 H14 aluminum discs can undergo further processes such as deep drawing, spinning, or anodizing to achieve different performance or decorative effects.

Technical Specifications of 3003 Aluminum Discs for Traffic Signs

Physical Properties

Performance Advantages of 3003 Aluminum Discs for Road Signs

1. Outstanding Weather Resistance: Excellent resistance against oxidation, humidity, UV radiation, and acid rain.

2. Lightweight Design: Much lighter than steel while offering high strength-to-weight ratio.

3. Superior Surface Quality: Flat, smooth, easy to clean, and ideal for reflective film application.

4. Dimensional Stability: Minimal deformation caused by temperature variations.

5. Excellent Formability: The H14 temper allows stamping, bending, and drawing without cracking ideal for producing various sign shapes such as round, rectangular, and arrow signs.

6. Eco-friendly & Recyclable: Aluminum can be fully recycled without losing material value.

7. Cost-Effective: More economical compared to higher-strength 5xxx series alloys.

Application Cases of 3003 H14 Aluminum Discs in Traffic Signs

1. Highway Guide Signs

Highway signs are exposed to wind, rain, and UV radiation for long periods.
The corrosion resistance and oxidation stability of 3003 H14 aluminum discs make them the optimal choice for durable and long-lasting highway signage.

2. Urban Road Traffic Signs

Urban roads demand signs with clear visibility, attractive appearance, and the ability to withstand occasional impacts or environmental pollution.
The lightweight and easy-processing nature of 3003 H14 discs makes them perfect for manufacturing diverse urban traffic signage.

3. Warning and Speed-Limit Signs

Warning and speed-limit signs require excellent visibility and long-term durability.
Aluminum discs work perfectly with high-performance reflective films to enhance nighttime visibility while ensuring color and reflectivity performance remains stable over years of use.