3005 Aluminum Circle Disc

3005 aluminum circle discs are circular sheets made from 3005 aluminum alloy. They belong to the 3000 series (aluminum–manganese) rust-resistant aluminum alloys and are commonly used as raw materials for further forming or manufacturing processes.

3005 aluminum circle discs combine corrosion resistance, good machinability, excellent deep drawing performance, weldability, and moderate strength. They are widely used in cookware, construction, electronics, automotive, and other industries.

Compared with 3003, 3005 aluminum circle discs offer approximately 20% higher strength and better corrosion resistance. Compared with 5052, they are more cost-effective and provide better formability. When selecting, choosing the appropriate temper and specifications based on specific application requirements for strength, corrosion resistance, and formability can achieve the best cost performance.

3005 aluminum circle disc

3005 aluminum circle discs (or circles) are specialized semi-finished products. They are ideal raw materials for deep-drawn products such as non-stick cookware, pressure cookers, and lamp shades, because the 3005 alloy is less prone to cracking during the drawing process.

3005 Aluminum Circle Disc Specifications

Item	Specification
Alloy	3005 Aluminum
Diameter	20 – 2300 mm
Thickness	0.02 – 200 mm Common range: 0.2 – 6 mm
Temper	O (Annealed), H14 (1/4 Hard), H24 (1/2 Hard), H18 (Full Hard) Other tempers available upon request
Surface Finish	Mill Finish, Polished, Brushed, Mirror, Sandblasted, Anodized, Embossed, etc.
Processing Method	Precision Cutting / Punching / Blanking
Custom Service	Custom diameter, thickness, temper, and surface finish available

Performance Comparison of Different Tempers (O / H14 / H24) for 3005 Aluminum Circle Disc

Temper	Characteristics	Typical Applications
O Temper (Annealed)	Lowest strength, highest ductility, elongation ≥ 20%, easy for deep drawing and bending	Products requiring complex forming, such as rice cooker inner pots
H14 Temper	Medium strength, good formability, excellent surface quality	Lamp shades, decorative trays, shallow-drawn parts
H24 Temper	Higher strength, moderate hardness, strong resistance to deformation	Architectural decoration, automotive components, load-bearing structures

3005 Aluminum Circle Disc Chemical Composition (%)

Alloy	Si	Fe	Cu	Mn	Mg	Cr	Ni	Zn	Ti	Others	Al
3005	0.6	0.7	0.3	1.0-1.5	0.2-0.6	0.1	-	0.25	0.1	0.2	Remainder

Mechenical Property of 3005 Aluminium Circle Disc

Alloy Temper	Thickness(mm)	Tensile Strength(Mpa)	The Yield Strength(Mpa)	elongation(%)	hardness(HV)
3005 O	>0.2-0.5	115-165	≥45	≥13	35-45
	>0.5-1.0			≥20
	>1.0-4.0			≥25
3005 H22	>0.2-0.5	145-195	≥110	≥10	40-60
	>0.5-1.0			≥15
	>1.0-4.0			≥15
3005 H24	>0.2-0.5	170-215	≥130	≥6	58-70
	>0.5-1.0			≥8
	>1.0-4.0			≥10
3005 H26	>0.2-0.5	195-240	≥160	≥3	65-83
	>0.5-1.0			≥4
	>1.0-4.0			≥6
3005 H18	>0.2-0.5	≥220	≥200	≥2	80-100
	>0.5-1.0			≥3
	>1.0-4.0			≥3

3005 Aluminum Circle Disc Characteristics

Formability: Excellent deep drawing, spinning, and forming performance, allowing processing into complex shapes.
Corrosion Resistance: Good resistance to moisture, ultraviolet exposure, and general corrosion, making it an ideal choice for outdoor and kitchen applications.
Thermal Performance: High thermal conductivity, suitable for heat dissipation applications.
Surface: Can be surface treated to achieve high hardness and scratch resistance while maintaining its natural metallic luster.
Higher Strength than 3003 Alloy: Approximately 20% higher strength than 3003 alloy while maintaining good workability.
Excellent Formability and Weldability: Can be deep drawn, stretched, or welded using common methods.
Available Tempers: O (annealed), H12, H14, H16, H18, H22, H24, etc., depending on the required hardness and formability.

3005 Aluminum Circle Disc Applications

Due to its balanced performance, 3005 aluminum circle discs are widely used across multiple industries:

Building Materials: Commonly used for color-coated aluminum sheets, curtain walls, louvers, roofing, and other decorative or structural components.
Household Cookware: A commonly used material for manufacturing various pots, pans, and kitchen utensils.
Electronics and Daily Products: Used for producing heat sinks, cosmetic covers, lamp components, and more.
Containers and Chemical Industry: Suitable for manufacturing tanks, containers, and chemical equipment components that require corrosion resistance and weldability.
Lighting and Decoration: Lamp shades, reflectors, decorative panels.
Transportation: Automotive components and traffic signs.

Cookware Industry

Rice cooker inner pots, cookware bottom heating plates
Advantages: Fast and uniform heat conduction, resistance to acidic and alkaline food corrosion, lightweight

Architecture and Decoration

Ceilings, curtain walls, louvers, decorative panels, curved components
Advantages: Good weather resistance; can be anodized or painted to achieve various colors

Electronics and Electrical Appliances

Heat sinks, heat exchangers, electronic equipment housings, lamp cap materials
Advantages: Good thermal and electrical conductivity, electromagnetic shielding, lightweight

Automotive Industry

Body panels (weight reduction up to 30%), roof racks, air-conditioning condensers, radiators
Advantages: Lightweight design improves fuel efficiency, excellent corrosion resistance

Other Fields

Solar reflectors, lighting equipment
Marine interiors, chemical equipment
Food packaging (compliant with food safety standards)

Advantages of 3005 Aluminum Circle Disc

Outstanding deep drawing performance: Its fine grain structure makes it highly suitable for deep drawing processes (such as manufacturing deep pots or rice cooker inner liners) without surface defects like “orange peel.”
Enhanced strength: The addition of magnesium provides better structural integrity than 1000 series or 3003 aluminum alloys.
Corrosion resistance: Performs excellently in humid environments, making it an ideal material for kitchenware and automotive components.
Surface finish: Features high reflectivity and responds well to anodizing, which is critical for non-stick coatings or decorative surface treatments.

Comparison of 3005 Aluminum Circle Disc with Other Alloys

3005 vs 3003

Parameter	3005	3003	Difference
Manganese Content	1.0~1.5%	1.0% (min)	Higher Mn content in 3005
Tensile Strength	120~205MPa	110~130MPa	About 20% higher for 3005
Corrosion Resistance	Excellent	Good	3005 is slightly better
Application Focus	Cookware and construction requiring higher strength	General cookware and common decoration	3005 has a wider application range

3005 vs 5052 (Representative of 5xxx Series)

Parameter	3005	5052	Difference
Alloy Series	Al-Mn Series	Al-Mg Series	Different base alloying elements
Tensile Strength	120~205MPa	230MPa (H32 temper)	5052 has higher strength
Seawater Corrosion Resistance	Good	Excellent	5052 is more suitable for marine environments
Price	Moderate	Higher	5052 has higher cost
Typical Applications	General anti-rust use, construction, cookware	Marine vessels, pressure vessels, high-strength structures	5052 is suitable for more demanding conditions

Production Process of 3005 Aluminum Circle Disc

Melting: High-purity aluminum ingots + alloying elements (such as manganese) are melted at 700–750°C, followed by refining and impurity removal.

Casting: Cast into slabs (approximately 65mm thick).

Homogenization treatment: Eliminates casting stress and improves microstructure.

Hot rolling: Heated to 500–700°C and rolled to a thickness of 8–12mm.

Cold rolling: Further reduced (to 0.2–6mm) to improve surface quality and strength.

Annealing: Softening treatment; different annealing temperatures are selected according to requirements.

Blanking: Stamped into circular shapes using molds.

Surface treatment (optional):

Anodizing: Improves corrosion resistance and decorative appearance.

Painting / Powder coating: Achieves various colors.

Polishing / Brushing: Enhances surface texture.

Tips for Choosing 3005 Aluminum Circle Disc

Key considerations when selecting 3005 aluminum circle discs:

Strength requirements: Choose 3005 for moderate strength with good formability; consider 5052 if higher strength is required.
Corrosive environment: 3005 is sufficient for general environments; 5052 is preferred for marine or high-salinity environments.
Forming complexity: Choose O temper for deep drawing and complex bending; choose H14/H24 for simple forming or rigidity requirements.
Cost budget: Choose 3003 for limited budgets, 3005 for better performance, and 5052 for high-end applications.

When ordering 3005 aluminum circle discs, the following parameters usually need to be specified:

Temper: O temper is best for deep drawing; H14 or H24 tempers are more suitable for flat or lightly formed parts.
Thickness: Typically ranges from 0.3mm to 6.0mm.
Diameter: Depending on the supplier, diameters can range from 100mm to 1200mm.

In short, if you need a circular aluminum alloy sheet with better strength than pure aluminum, good corrosion resistance, and excellent formability for cookware, architectural decorative parts, or general industrial components, 3005 aluminum circle discs are a reliable and widely used choice.

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