Aluminium Circle For Road Sign
Aluminium circles, also called round aluminum sheets or blanks, are the most important material for road traffic signs. They provide durability, weather resistance, and easy processing for reflective coating and printing.
At our wholesale aluminum circle factory, we specialize in producing high-quality circles for traffic signs in different alloys, diameters, and thicknesses.




Aluminum Circle for Traffic Sign
Aluminum circles for traffic signs are widely used because of:
- Excellent corrosion resistance – no rusting in outdoor environments.
- Lightweight strength – easy installation and handling.
- Perfect surface quality – suitable for reflective film lamination.
- Long lifespan – maintains shape and performance for many years.
Traffic Signs 3000 Series Round Aluminum
The most popular material for road sign aluminum circles is the 3000 series alloy (mainly 3003 and 3105). These alloys combine high corrosion resistance, smooth surface, and good machinability.
Table: Common Alloy Options for Road Sign Circles
| Alloy | Features | Typical Use |
|---|---|---|
| 1050 | High purity, economical | Indoor or simple traffic signs |
| 1100 | Good corrosion resistance | Basic road signs, general use |
| 3003 | Strong anti-rust, good forming | Highway, city traffic signs |
| 3105 | High strength, paintable surface | Long-lasting outdoor applications |
Sizes and Thickness for Road Sign Circles
Aluminum sign blanks are available in different diameters and thicknesses depending on the type of road sign.
Table: Typical Dimensions
| Diameter (mm) | Thickness (mm) | Application Example |
|---|---|---|
| 200 – 300 | 1.0 – 1.2 | Direction signs, small signs |
| 400 – 600 | 1.2 – 1.5 | City traffic signs |
| 700 – 900 | 1.5 – 2.0 | Highway signs, stop signs |
| 1000+ | 2.0 – 3.0 | Large outdoor road signs |
Factory Supply Competitive Aluminum Traffic Sign
Our factory offers direct wholesale supply of aluminum circles for road signs. Benefits include:
- Competitive pricing due to large-scale production.
- Strict quality control with smooth, defect-free surfaces.
- Custom sizes and alloys available on request.
- Fast delivery and export-ready packaging.
Packaging Options
- Wooden pallets with corner protection
- Plastic film wrapping for surface protection
- Seaworthy export packing for safe transport
Applications of Road Sign Aluminium Circle
Aluminum circles are widely used in road and traffic sign manufacturing:
- Stop and yield signs
- Speed limit signs
- Highway direction boards
- Warning and caution signs
- Street name plates
Why Choose Our Aluminium Circle Factory?
- 20+ years experience in aluminum circle production
- ISO-certified quality system
- Custom diameters and alloys available
- Direct factory price without middlemen
- Global supply to Europe, North America, Asia, and the Middle East
FAQ – Frequently Asked Questions
Q1: What is the standard alloy for traffic sign aluminum circles?
A: 3003 and 3105 alloys are most commonly used due to their corrosion resistance and strength.
Q2: What thickness is used for road sign aluminum blanks?
A: Typical thickness ranges from 1.0 mm to 3.0 mm, depending on sign size.
Q3: Can aluminum sign circles be coated?
A: Yes, they can be anodized, painted, or laminated with reflective film.
Q4: How are aluminum circles packaged for export?
A: Packed with wooden pallets, waterproof wrapping, and steel straps for safe delivery.
Q5: Why choose factory wholesale supply?
A: It ensures better price, stable quality, and custom specifications according to project needs.