Thick Wall Pressure Cooker Aluminum Circle

Core Advantages

• Special thick wall design, 2.0-6.0mm gauge, high strength and pressure resistance, fully meet pressure cooker safety standards

• 3003/5052 alloy optional, 3003 for excellent formability, 5052 for higher strength and corrosion resistance

• Outstanding deep drawing performance, uniform grain structure, no cracking, no wrinkling during high pressure pot stretch forming

• Precise wall thickness tolerance, ensure uniform pot wall thickness after forming, even stress distribution, safer for high pressure use

• Food grade aluminum substrate, complies with FDA and LFGB food contact standards, non-toxic and odorless

• Smooth and defect-free surface, perfect for subsequent polishing, anodizing and non-stick coating treatment

• Accurate diameter tolerance, perfectly match pressure cooker moulds, reduce scrap rate and material waste

• Customizable thickness, diameter and alloy, meet different specifications of household and commercial pressure cooker production

Production Process

Thick gauge aluminum coil raw material feeding → Continuous degreasing and alkali cleaning → Chromium-free food grade passivation → Constant temperature drying → Stress relief annealing treatment → Precision leveling → High power circular blanking → Edge deburring & rounding → Surface quality inspection → Dimension tolerance sampling test → Deep drawing performance test → Protective paper interleaving → Stacking arrangement → Moisture-proof export packaging.

Each batch undergoes strict deep drawing test and thickness uniformity inspection before delivery to guarantee high forming yield for pressure cooker production.

Technical Parameters

Application

Household kitchenware: Household pressure cooker, electric pressure cooker, pressure rice cooker inner pot

Commercial kitchen equipment: Large commercial pressure pot, industrial pressure steamer, catering pressure cooker

Composite cookware: Stainless steel composite bottom pressure cooker aluminum core base

Other deep drawing products: Thick wall aluminum pot, soup pot, stew pot and other deep drawn kitchen utensils

Export Packaging

Each aluminum circle separated by anti-scratch kraft paper to avoid surface friction scratches. Whole stacks wrapped with multi-layer moisture-proof PE film and kraft paper. Firmly fixed on IPPC fumigated wooden pallets with plastic strapping, suitable for long-distance sea transportation. Clear shipping marks printed outside including alloy grade, thickness, diameter, surface treatment type, net weight, gross weight and batch number. We can supply complete fumigation certificate, MTC, food safety test report and full customs clearance documents for overseas kitchenware factory audit and import inspection.

FAQ

Q1: Why does pressure cooker need thick wall aluminum circle?

A: Pressure cooker needs to bear high internal pressure during use. Thick wall aluminum circle has higher strength and more uniform wall thickness after forming, which ensures even stress distribution, prevents deformation and explosion risk, and meets strict safety standards.

Q2: How to choose between 3003 and 5052 alloy?

A: 3003 alloy has better deep drawing formability, suitable for conventional household pressure cookers; 5052 alloy has higher strength and better corrosion resistance, recommended for commercial high-pressure cookers and high-end products.

Q3: Can you customize special thickness and diameter?

A: Yes, we support customized thickness from 2.0mm to 6.0mm and diameter from 200mm to 800mm, which can fully match different pressure cooker moulds and product specifications.

Q4: What is the deep drawing yield rate?

A: Our aluminum circles undergo strict grain structure control and precision annealing treatment, the deep drawing forming yield rate can reach over 99%, effectively reducing production waste for customers.

Q5: Does it comply with food contact safety standards?

A: Yes, all products use food grade aluminum substrate, comply with FDA, LFGB and other international food contact safety standards, and can directly contact all kinds of food.