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Large-diameter aluminum circles are increasingly specified in cookware, lighting reflectors, insulation jacketing components, tank end plates, and other formed parts where a single-piece blank reduces welding, improves appearance, and stabilizes forming performance. As a manufacturer focused on aluminum circle production, we routinely supply 3003 aluminum circles up to 1200 mm diameter for customers who require consistent temper, controlled grain structure, and reliable edge quality for spinning and deep drawing.

Pricing for a 1200 mm aluminum disc is rarely a single fixed number. It depends on alloy selection, temper, thickness, tolerances, surface condition, edge requirements, and inspection level. This article explains what drives the customized price for large-diameter 1200 mm 3003 aluminum circles, and how we design the product and process to meet engineering requirements while keeping supply stable for long-term programs.

Why 1200 mm 3003 aluminum circles are specified

A 1200 mm blank sits at the upper end of common circle sizes. At this diameter, factors that may be minor on smaller discs become critical, including flatness, residual stress, coil-to-coil consistency, and edge integrity.

We recommend 3003 alloy for many large-diameter applications because it offers a practical balance of:

• Formability for spinning and moderate to deep drawing

• Corrosion resistance for exposed or humid environments

• Stable mechanical performance across production lots

• Good surface finish response to polishing or coating

When the design requires higher purity for maximum conductivity or specific anodizing effects, 1xxx alloys may be considered. When higher strength is required, other series may be evaluated. For most formed covers, housings, cookware, and reflector components, 3003 aluminum disc stock remains a cost-effective and technically robust choice.

Product features and performance expectations

As a factory, our focus is to deliver a large diameter aluminum circle that forms predictably and finishes cleanly. Key performance-oriented features include:

1) Forming performance

• Controlled work hardening behavior for stable spinning and draw walls

• Reduced risk of ear formation through consistent rolling and annealing practice

• Reliable ductility in soft tempers for demanding forming steps

2) Surface quality

• Low defect surface suitable for brushing, polishing, painting, or anodizing

• Optional protective film to reduce handling marks during fabrication

3) Edge quality

• Smooth, burr-controlled edges to reduce tool wear and prevent crack initiation

• Optional deburring or edge conditioning depending on forming method

4) Dimensional stability

• Flatness and residual stress control to support laser cutting, stamping, or spinning

• Tight diameter control for automated feeding and accurate tooling registration

Technical parameters (typical supply range)

The final specification is confirmed by purchase order and drawing. Below is the typical manufacturing range we support for large-diameter 1200 mm 3003 aluminum circles.

If your project requires a specific deep drawing aluminum disc specification, we can review your forming route and recommend temper, thickness, and edge condition to reduce scrap risk.

Manufacturing capabilities behind large-diameter circles

Large diameter aluminum circle production is not only about cutting a big disc. It is a controlled sequence designed to maintain material integrity and repeatability.

Raw material control

We produce circles from qualified coil or plate sources with documented chemistry and process history. For 3003, we pay close attention to manganese content control and homogenization consistency because these factors influence formability and surface finish.

Precision blanking and cutting

For 1200 mm circles, we apply process settings that prioritize:

• Stable diameter repeatability

• Edge integrity with controlled burr height

• Minimal distortion during cutting and handling

We can support different cutting routes depending on thickness, tolerance, and edge requirements. The goal is to deliver a blank that feeds smoothly into spinning or press forming without secondary correction steps.

Annealing and temper control

For O temper supply, annealing consistency is critical to obtain uniform softness and predictable forming. We control time, temperature, and batch loading to reduce property variation within a lot. For strain-hardened tempers, we manage reduction and tension to achieve the requested mechanical range.

Surface and cleanliness management

Large discs are more sensitive to handling marks. We implement controlled stacking, separation materials when needed, and optional film application for customers with high cosmetic requirements.

To explore our standard 3003 circle offering, see our 3003 Aluminum Circle page for general grades and service scope.

Quality control, standards, and documentation

We operate quality controls aligned with international engineering expectations. For export orders, we typically provide inspection records and traceability documentation consistent with the order requirements.

Incoming and in-process inspection

• Chemical composition verification per alloy requirements

• Thickness mapping and gauge verification

• Diameter and roundness checks

• Surface defect screening under defined lighting conditions

• Edge burr measurement and tactile inspection

Final inspection and lot release

Depending on the specification, we can support:

• Tensile testing and elongation verification (especially for forming grades)

• Hardness checks for temper confirmationn- Flatness evaluation and residual stress related checks where applicable

• Packaging inspection to prevent transport damage

Standards support

We commonly reference ASTM B209 and EN 485 series requirements, or work directly to customer specifications. If your program requires additional requirements such as tighter property windows, specific grain size targets, or special surface acceptance criteria, we will define them in the technical agreement before production.

Customization options that affect the customized price

A customized price for 1200 mm 3003 aluminum circles is driven by the combination of technical requirements and order conditions. The most common price drivers include:

1. Thickness and diameter tolerance: tighter tolerances increase processing and inspection effort.

2. Temper selection: O temper may require dedicated annealing cycles; hardened tempers require controlled reduction.

3. Surface requirements: cosmetic-grade surface, polishing-ready finish, or film protection adds handling and process steps.

4. Edge conditioning: deburring or special edge standards can be necessary for spinning and deep drawing.

5. Flatness and stress control: additional controls may be needed for large diameter blanks to avoid forming instability.

6. Order quantity and lot strategy: large discs affect yield and nesting efficiency; stable annual volumes typically reduce unit cost.

7. Testing and documentation: additional mechanical testing, dimensional mapping, or third-party inspection affects cost.

When you request a quotation, we recommend sharing your drawing, forming process (spinning, deep drawing, stamping), target temper, and acceptance criteria. This allows us to quote an accurate, application-matched solution rather than a generic large diameter aluminum circle price.

For broader multi-alloy options within this family, you can also reference our 3000 Series Aluminum circle capabilities.

Application scenarios and target industries

Our 1200 mm 3003 aluminum disc products are commonly used in:

• Cookware manufacturing: large pots, lids, pressure cookware components, and specialty spun cookware

• Lighting and reflectors: formed reflector blanks and housings where consistent surface and shape are important

• HVAC and thermal insulation: jacketing parts, end covers, and formed cladding components

• Industrial equipment: covers, housings, guards, and formed panels requiring corrosion resistance

• Tank and vessel components: non-pressure end plates or formed covers depending on design and regulatory scope

Where mirror reflectivity is required, customers typically specify additional surface treatments or different finishing routes. We can align surface and protection requirements to your downstream polishing, anodizing, or coating process.

Conclusion: stable supply, technical support, and long-term cooperation

As a manufacturer of large diameter aluminum circle products, we understand that a 1200 mm 3003 aluminum circle is typically part of a defined forming process where variation directly impacts yield and delivery schedules. Our approach to customized pricing is based on matching alloy, temper, tolerances, surface, and inspection to your actual application, then maintaining consistent process controls to keep performance stable across lots.

For projects requiring ongoing supply, we can support sampling, specification alignment, and production planning to ensure continuity. If you share your target application, drawing, and annual demand profile, our technical team will propose the appropriate 3003 aluminum disc specification and provide a quotation designed for long-term cooperation.