Anodized Aluminum Discs for Non-Stick Cookware
Why Choose Anodized Aluminum Discs?
Traditional aluminum circles are lightweight and have excellent thermal conductivity, but their surfaces are easily scratched and prone to oxidation, which affects the durability and appearance of cookware. After anodizing treatment, the aluminum circle surface forms a dense oxide layer that significantly improves wear resistance and corrosion resistance, while also enhancing the adhesion of coatings, providing a solid foundation for non-stick layers.
In modern non-stick cookware production, anodized aluminum circle discs are usually used as pan body blanks, which undergo spinning, high-temperature anodization, and coating to produce the finished cookware. Their stable dimensional accuracy and high-quality surface are key factors determining the performance and appearance of non-stick pans.
Common Alloy Grades for Cookware Aluminum Discs
The main aluminum alloys used for anodized cookware discs are 1-series pure aluminum (1060, 1070, 1100) and 3-series anti-rust aluminum (3003).
They are available in thicknesses from 0.4 to 6.0 mm and diameters from 50 to 1600 mm, and can be customized according to customer requirements.
Specifications of Anodized Aluminum Circles
| Alloy | 1060, 1070, 1100, 3003 |
| Temper | O (soft), H12, H14 |
| Diameter | 100-600 mm (customizable) |
| Thickness | 0.4-6.0 mm |
| Surface | Anodized, mirror, brushed, pre-coating treatment |
| Oxide Film Thickness | 5-25 μm (hard anodizing up to 40 μm) |
| Roundness Tolerance | ≤ ±0.3 mm (for large discs) |
| Surface Quality | Clean, no oil stains, scratches, or oxidation spots; suitable for direct anodizing or coating |
| Sample | Available |
| MOQ | 1-3 tons |
Anodizing Process Flow
Aluminum disc stamping → deburring → cleaning and degreasing
Chemical pretreatment: alkali and acid washing to remove surface impurities
Anodizing: electrochemical process to form an oxide film of approximately 5-25 μm
Sealing: prevents contamination of the oxide layer and enhances corrosion resistance
Surface inspection → coating: combined with non-stick layers such as PTFE or ceramic coatings
Advantages of Anodized Aluminum Circle Discs
1. High surface wear resistance: Hardness can reach HB200+, greatly improving scratch resistance.
2. Excellent corrosion resistance: Dense oxide film isolates air, moisture, and acidic or alkaline ingredients.
3. Good thermal conductivity: Aluminum conducts heat quickly, ensuring even heating and reducing burning.
4. Aesthetic appearance: Can achieve silver, brushed, or mirror finishes, supporting brand differentiation.
5. Food-safe and environmentally friendly: Free of harmful substances and suitable for direct contact with food.
6. Compatible with automated production: High roundness and flatness are suitable for spinning and high-speed production lines.
Application Scenarios
Non-stick frying pans and sauté pans
Flat-bottom pans
Milk pots and soup pots
Ceramic-coated cookware
Composite pan bottoms
MC Aluminum is a professional manufacturer of aluminum discs, producing 1, 3, 5, and 8 series discs with complete specifications, high quality, short delivery times, competitive prices, and export to multiple overseas countries. Our products are highly favored by customers worldwide.
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