3003 aluminum-manganese alloy circles are the industry-standard choice for mid-to-high-end impact-bonded cookware and pressure cookers. They offer an ideal balance of strength, corrosion resistance, and brazing compatibility, perfectly meeting the performance demands of cookware subjected to frequent, long-term use. As a primary manufacturer with over a decade of expertise in aluminum circlex production, Haomei Aluminum currently supplies over 5,000 tons of 3003 aluminum circle for utensils annually, reliably serving global manufacturers of impact-bonded base woks and commercial cookware.

We implement precise control over the manganese content in our 3003 alloy, maintaining levels within the optimal 1.1%–1.4% range across all batches to prevent fluctuations in strength or corrosion resistance. Our production process utilizes DC (Direct Chill) semi-continuous casting billets, followed by homogenization annealing at 480°C for over 12 hours to eliminate compositional segregation, and continuous bell-type annealing furnaces to ensure uniform recrystallization. Mass-production data confirms that our O-temper 3003 aluminum circles for cookware exhibit stable tensile strength (95–130 MPa), elongation ≥25%, and an Erichsen cupping value (IE) ≥9.5 mm. They achieve a limiting deep-drawing ratio of 2.0:1 and withstand over 720 hours of neutral salt spray testing without pitting.

In terms of application, our 3003 aluminum circles are suitable for the full spectrum of mid-to-high-end cookware production. When used for tri-ply composite-base stir-fry pans, the material bonds strongly with the stainless steel base layer, eliminating the risk of base separation during long-term use. For pressure cooker inner pots and stockpots, the material offers excellent resistance to weak acids, ensuring no corrosion from contact with acidic or alkaline ingredients; the finished cookware boasts dent resistance over 40% superior to that of 1000-series pure aluminum circles, showing no significant deformation after five years of normal use.

We currently supply 3003 aluminum circles in thicknesses ranging from 0.6 mm to 4.0 mm and diameters from 150 mm to 900 mm, with customizable tempers such as O and H14. Surface options include double-sided PE film coating and precision edge finishing, ensuring compatibility with automated stamping production lines. Every batch undergoes rigorous pre-shipment testing—including spectral analysis of composition, mechanical property sampling, and food-contact safety checks. Manganese leaching levels remain far below FDA and LFGB limits, making the material safe for direct use in food-contact cookware.

Haomei maintain ready stock of 3003 aluminum circle for utensils with mainstream specifications, with standard orders ready for shipment within seven days. We support everything from small-batch sample testing to full-container bulk deliveries and offer tailored material selection advice based on your specific wok dimensions. If you are looking to source 3003 aluminum circles, please feel free to contact us for the latest price and free test samples.