Aluminum Circle
Zhongxin Aluminum manufactures aluminum circles (also known as aluminum discs or round aluminum plates) in a wide range of alloys, thicknesses and diameters. Each aluminum circle plate is custom-cut to meet client specifications and is widely used in cookware, lighting, packaging and signage industries. Our aluminum circle disc products feature excellent weldability, corrosion resistance, lightweight construction and strong pressure tolerance.
Key Properties
- High thermal conductivity
- Good corrosion resistance
- High latent heat of melting
- High reflectance (ideal for lighting and reflective applications)
- Excellent welding property
- Low strength alloys for deep drawing (cookware grade)
Aluminum Circle Specifications
Zhongxin offers a wide range of aluminum circles in different grades, alloys and thicknesses, customized as per client specifications.
| Item | Specification |
|---|
| Alloy | 1050, 1060, 1070, 1100, 3003, 5052 |
| Thickness | 0.3 – 10.0 mm |
| Diameter | 100 – 1500 mm (including 4 inch and 12 inch aluminum disc sizes) |
| Temper | O, H14, H18 |
| Surface | Mill finish, brushed aluminum circle, polished |
| Material | Hot rolled / Cold rolled |
Common small-size aluminum discs such as the 4 inch aluminum disc and 12 inch aluminum disc are widely used for cookware bases and lighting reflectors. Larger aluminum circle plates up to 1500 mm diameter are typically used in industrial tank heads and large signage.
Chemical Composition of Aluminum Circle Alloys
| Alloy | Si | Fe | Cu | Mn | Mg | Zn | Al |
|---|
| 1050 | 0.25 | 0.40 | 0.05 | 0.05 | 0.05 | 0.05 | 99.50 min |
| 1060 | 0.25 | 0.35 | 0.05 | 0.03 | 0.03 | 0.05 | 99.60 min |
| 1100 | 0.95 | 0.05–0.20 | 0.05 | -- | -- | -- | 99.0 min |
| 3003 | 0.6 | 0.7 | 0.05–0.20 | 1.0–1.5 | -- | 0.1 | Remainder |
| 5052 | 0.25 | 0.40 | 0.10 | 0.10 | 2.2–2.8 | 0.10 | Remainder |
Which Aluminum Circle Alloy Should You Choose?
1050 & 1060 Aluminum Circle
Pure aluminum grades (99.5%+ and 99.6%+ aluminum content) offering the best corrosion resistance and conductivity. Ideal for cookware, lampshades and reflective applications where formability matters more than strength.
1100 Aluminum Circle
Slightly higher strength than 1050/1060 while retaining good corrosion resistance and ductility. A common choice for spinning and deep-drawing into pots, pans and capacitor cases.
3003 Aluminum Circle
Manganese addition gives 3003 circle higher strength than the 1000 series while keeping excellent corrosion resistance — suited for cookware bases that need more durability, such as pressure cooker bodies.
Magnesium-alloyed for the highest strength among common circle grades, used where structural rigidity is required, such as automotive and marine fittings.
Quick comparison:
| Alloy | Strength | Corrosion Resistance | Formability | Typical Use |
|---|
| 1050/1060 | Low | Excellent | Excellent | Cookware, lighting |
| 1100 | Low-Medium | Excellent | Excellent | Pots, pans, capacitor case |
| 3003 | Medium | Excellent | Good | Pressure cookers, kitchenware |
| 5052 | High | Good | Moderate | Structural, automotive parts |
Applications of Aluminum Circle
Cookware (Pots & Pans)
1050, 1100 and 3003 aluminum circles are the most common base material for pots, pans and pressure cookers thanks to even heat distribution and easy deep-drawing.
Lighting (Lampshades & Reflectors)
Brushed aluminum circle and polished aluminum disc are used for lampshades and light reflectors due to high reflectance and a clean surface finish.
Road Signs & Traffic Signals
Round aluminum plate is widely used as the base for road signs, offering weather resistance and a flat surface for reflective coatings.
Packaging & Industrial Caps
Aluminum discs with center holes and small-diameter circles are used for capacitor cases, toothpaste caps, cosmetic case lids and glue tube caps.
Strength of Zhongxin Aluminum
Technologies: Top polishing technology guarantees good luster and smooth surface.
Markets: Obtain market sharing all over the world.
Equipment: Advanced cutting line to provide a wide range of specifications.
Production capacity: 300,000 tons annually in total.
Employees: Over 25 sales persons to provide good service for customers.
Responsibility: Engaged in charity donation and provide eco-friendly products.
Packaging and Delivery
Aluminum products of Zhongxin meet the export standard. Plastic film and brown paper can be covered at customers' need. What's more, wooden case or wooden pallet is adopted to protect products from damage during the delivery. There are two kinds of packaging: eye to wall or eye to sky. Customers can choose either of them for their convenience. Generally speaking, there are 2 tons in one package, loading 18–22 tons in one 20′ container, and 20–24 tons in one 40′ container.
Frequently Asked Questions
What is the difference between an aluminum circle and an aluminum disc?
"Aluminum circle" and "aluminum disc" refer to the same product — a flat, round-cut aluminum plate. The terms are used interchangeably in the industry, though "circle" is more common in trading terminology and "disc" is more common in technical/manufacturing contexts.
What diameter and thickness options are available?
Zhongxin supplies aluminum circles from 100 mm to 1500 mm in diameter and 0.3 mm to 10.0 mm in thickness, including standard sizes like 4 inch and 12 inch aluminum discs for cookware.
Which alloy is best for cookware?
1050, 1100 and 3003 are the most common choices for cookware. 3003 offers the best balance of strength and corrosion resistance for higher-end pots and pressure cookers.
Do you supply brushed or polished aluminum circle?
Yes, we offer mill finish, brushed, and polished surface options depending on the application — brushed and polished are typically used for lighting and decorative purposes.
Can aluminum circles be customized to specific sizes?
Yes, all aluminum circle plates can be cut to custom diameters and thicknesses according to client drawings or specifications.
