1100 Aluminum Disc Circle

1100 Aluminum Disc Circle is made from 1000 series industrial pure aluminum (Aluminum content ≥99.0%), known for its excellent workability, corrosion resistance, and thermal and electrical conductivity, making it a fundamental material choice in many industries.

The 1100 aluminum disc circle has relatively low strength and cannot be strengthened by heat treatment. This material is commonly used for stamping, spinning, and other deep processing. Typical applications include cookware, lighting fixtures, chemical containers, nameplates, and architectural decorative components.

1100 Aluminum Disc Circle Specifications

Parameter	Range	Common Values
Thickness	0.30~30.00mm	0.5~5.0mm (for cookware)
Diameter	100~1200mm	200~800mm (general sizes)
Temper	O (soft), H12, H14 (half-hard), H18	O, H14
Tolerance	Thickness ±0.02~0.10mm, Diameter ±0.5~2.0mm	Precision grade customizable
Surface Condition	Mill finish, brushed, or PE coated, bright, matte, anodized	Customizable as required
Process	CC / DC	DC preferred for deep drawing
Tolerance (Precision)	Thickness: ±0.02mm; Diameter: ±1mm	Higher precision can be requested

1100 Aluminum Disc Circle Common Heat Treatment States

State	Code	Characteristics	Applicable Scenarios
Annealed	O	Softest, highest elongation (~40%)	Deep drawing, spinning, complex forming
Half-hard	H12/H22	Medium strength, good ductility	General forming, bending
Full-hard	H14/H24	Higher strength, moderate ductility	Structural parts, stamped components
Extra-hard	H18	Highest strength, lowest ductility	High-strength simple formed parts

1100 Aluminum Disc Circle Surface Finishes

Product	Surface Treatment / Processing Method	Product Features	Typical Applications
1100 Mill Finish Aluminum Disc Circle	Mill Finish	Smooth surface, retains natural metal color and luster. Usually oiled or paper-protected during transport to prevent scratches and oxidation.	Standard raw discs; can be further anodized or coated.
1100 Aluminum Disc Circle with PE / PVC Protective Film	PE / PVC Film	Protective film applied to prevent scratches during stamping, spinning, or transport.	Pre-protection for cookware, lighting, and electronics; suitable for deep drawing.
1100 Anodized Aluminum Disc Circle	Anodizing	Uniform and transparent oxide layer on high-purity aluminum, bright and corrosion-resistant, can be colored.	High-end lighting, decorative panels, electronic housings.
1100 Non-stick Coated Aluminum Disc Circle	Teflon / Non-stick Coating	High-temperature resistant, non-stick, suitable for food contact.	Cookware (pots, baking trays, etc.)
1100 Polished Aluminum Disc Circle	Polishing	Mechanical polishing achieves mirror finish, uniform light reflection.	Reflectors, decorative parts, high-end cookware.
1100 Brushed Aluminum Disc Circle	Brushing	Fine surface texture, enhances feel and aesthetics, reduces fingerprint marks.	Decorative components, lighting, furniture panels.

1100 Aluminum Circle Features

Formability: Highly suitable for deep drawing, spinning, stamping, and processing of complex shapes.
Corrosion Resistance: Excellent, especially in marine and corrosive environments.
Conductivity: Good thermal and electrical conductivity.
Weldability: Easy to weld and process.
Strength: Lower strength compared to other aluminum alloys, but the highest strength among 1000 series aluminum alloys.
Exceptional Machinability: Excellent deep drawing, spinning, and bending performance; no "four-corner" defects, suitable for complex shape processing.
Good Surface Finishing: Easy to polish, anodize, and paint, achieving aesthetically pleasing surface effects.
Non-toxic and Environmentally Friendly: Complies with food contact standards, recyclable, green and sustainable.
Cost Advantage: Industrial pure aluminum has relatively stable prices, offering high cost-performance ratio.

Limitations: Low strength, not suitable for high-load structural parts; cannot be strengthened by heat treatment, strength can only be improved by cold working.

1100 Aluminum Circle

1100 Aluminum Circle Chemical Composition

Alloy

Other

Min.A1

1100

0.95

0.05-0.2

0.05

0.1

0.05

1100 Aluminum Circle Mechanical Properties

Alloy Temper	Thinckness mm	Tensile Strength Mpa	Elongation %
1100 O(SOFT)	0.5-10	60-100	≥20
1100 H12	0.5-10	70-120	≥4
1100 H24	0.5-10	85-120	≥2

1100 DC/CC Aluminum Circle

Performance Indicators	1100 DC (Hot Rolled)	1100 CC (Cold Rolled)
Recommended Processing	Deep Drawing	Spinning / Shallow Stamping
Elongation	Excellent	Average
Earing	Very low (smooth edges)	Higher (uneven edges)
Grain Structure	Fine, equiaxed	Coarse, elongated
Oxidation Effect	Uniform, high gloss	May have color variation or shading
Cost / Price	Higher	Lower

1100 DC Aluminum Circle

DC material is usually called "hot rolled". Its production process involves melting aluminum ingots, casting into thick slabs (billets), homogenization annealing, surface milling, heating, and then hot rolling.

Core Features:

Internal Structure: Fine, uniform, equiaxed grains.
Elongation: Extremely high, excellent ductility.
Isotropy: Metal exhibits uniform deformation resistance in all directions; during stretching, “earing” is unlikely (edges are smooth, not jagged).
Surface Quality: Highly uniform color after anodizing, no streaks.

Best Use: Deep Drawing – suitable for high-depth pressure cooker pots, rice cooker inner pots, and high-end deep containers.

High Surface Finish Requirement: Cookware requiring high-quality anodizing or mirror polishing.

Drawbacks: Higher price and relatively longer production lead time.

1100 CC Aluminum Circle

CC material is called "cold rolled". Its process involves casting molten aluminum directly through a continuous casting machine into ~8mm strips, without hot rolling, and then cold rolling directly to final thickness.

Core Features:

Internal Structure: Coarser grains, elongated along the rolling direction, showing clear anisotropy.
Elongation: Relatively lower.
Processing Performance: Prone to cracking during deep drawing, or visible "orange peel" texture (rough surface).
Cost Advantage: Shorter production process, lower energy consumption, typically 15%-25% cheaper than DC material.

Best Use:

Spinning: Suitable for making lampshades, ordinary aluminum basins, frying pans, etc.

Shallow Stamping: Such as signage, manhole covers, decorative panels, or products that do not require severe deformation.

Drawbacks: Not suitable for deep drawing; may exhibit color variation or texture after anodizing.

1100 Aluminum Circle Applications

Cookware: Non-toxic and compliant with food safety standards, commonly used for pots, frying pans, kettles, and non-stick pan bottoms.
Lighting: Lampshades, reflectors, and high-reflectivity lighting fixtures.
Signage & Architecture: Traffic signs, decorative panels, and building components.
Machinery: Components for various mechanical and electrical equipment.
Chemical & Pharmaceutical: Food storage, packaging, chemical tanks, heat exchanger fins, hollow containers, and processing equipment.

Cookware Industry:

Pots, frying pans, pressure cookers, kettles – body and lid
Baking trays, cake molds, utensils, and other food contact items
Advantages: Non-toxic, uniform heat conduction, easy to clean

Lighting & Decoration:

Lampshades, reflectors, lighting housings
Signboards, advertising panels
Advantages: High reflectivity, easy to form, corrosion-resistant

Electronics & Electrical:

Heat sinks, conductive components, PCB drilling backplates
Transformer housings, capacitor housings
Advantages: Good thermal and electrical conductivity, lightweight

Chemical & Pharmaceutical:

Chemical containers, pipe fittings, reactor liners
Pharmaceutical packaging, medical device components
Advantages: Strong corrosion resistance, non-toxic, easy to clean

Other Applications:

Automotive parts (decorative parts, heat dissipation components)
Aluminum bottle caps, sealing components
Craft items, metal components for gift boxes

Application	Recommended Product	Recommended Process (DC/CC)	Key Considerations
High-end Non-stick / Deep Pots	1100 O Aluminum Circle	DC (Hot Rolled)	Stretching without cracking, no orange peel
Standard Frying Pans / Lampshades	1100 O / H14 Aluminum Circle	CC (Cold Cast)	Cost-effective, smooth spinning
Traffic Signs	1100 H14 Aluminum Circle	CC	Surface flatness, hardness
Capacitor Housings	1100 O Aluminum Circle	DC	Dimensional tolerance, sealing

Recommendation: If you are performing deep drawing (e.g., making deep soup pots), be sure to specify DC-grade O temper aluminum circles to prevent "orange peel" or cracking during processing.

1100 Aluminum Circle

1100 Aluminum Circle Production Process

Raw Material Preparation: Electrolytic aluminum ingots + precise alloying elements
Melting & Casting: Furnace refining → resting → grain refinement → online degassing & filtering → cast into rolls
Rolling Process: Cold roll to target thickness → intermediate annealing (as required) → finishing roll
Heat Treatment: Annealing (O temper) or cold work hardening (H series) as needed
Cutting & Forming: Precision cutting on disc shearing machine → deburring → cleaning
Quality Inspection: Full inspection of dimensions, surface, and mechanical properties
Packaging & Storage: Moisture-proof and scratch-proof packaging

1100 Aluminum Circle Selection and Usage Tips

Temper Selection: Use O temper for deep drawing / spinning; H22/H24 for general forming; H18 for simple high-strength parts
Thickness Matching: Cookware commonly 1.0~3.0mm; lampshades 0.5~1.5mm; electronic heat sinks 0.3~1.0mm
Surface Requirements: Food contact must have food-grade certification; decorative parts require high-gloss surface; outdoor use may require anodizing
Standards Compliance: Common standards include GB/T 3880, ASTM B209, EN 485

1100 Aluminum Circle vs Other Aluminum Alloy Circles

Alloy	Aluminum Content	Strength	Workability	Corrosion Resistance	Suitable Applications
1100	≥99.0%	Low	Excellent	Excellent	Cookware, deep-drawn parts
3003	~98%	Medium	Good	Excellent	Containers, heat sinks
5052	~97%	Medium-High	Fairly Good	Excellent	Marine, automotive parts
8011	~97%	Medium	Good	Excellent	Aluminum foil, bottle caps

Why Choose 1100 Aluminum?

If your project requires complex shapes, excellent surface smoothness (polishable/anodizable), high purity and corrosion resistance, and does not require high structural strength, 1100 aluminum is a versatile and cost-effective choice. It is usually supplied as pre-cut discs or round sheets for convenient manufacturing.

Although 3003 is also commonly used for round parts, it contains manganese and has approximately 20% higher strength than 1100.

If you prioritize ease of spinning or chemical purity, choose 1100.
If you need finished parts with higher dent resistance, 3003 is usually the better option.

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