3003 Aluminum vs 6061 Aluminum

3003 Aluminum vs 6061 Aluminum
By HDM Team
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Choosing the right aluminum alloy is crucial for different projects. 3003 aluminum is strong with great corrosion resistance, suitable for kitchenware and construction. 6061 aluminum, with superior mechanical properties and corrosion resistance, is used in demanding sectors like automotive and aerospace.
HDM provides this comparison to offer valuable advice for choosing the most appropriate alloy depending on the particular needs of the project.

3003 Aluminum Overview

3003 Aluminum Sheet
3003 aluminum is celebrated for its medium strength, excellent corrosion resistance, and superior workability. Its strength, enhanced by cold working, and good thermal conductivity make it a popular choice in various industries.
Applications of 3003 include culinary utensils, construction materials, and components in cooling systems due to their ability to resist corrosion and maintain structural integrity under various conditions.

6061 Aluminum Overview

6061-T6 Aluminum sheets
6061 aluminum is a highly versatile alloy known for its excellent mechanical properties and corrosion resistance.
This alloy is utilized in diverse applications including automotive parts, bicycle frames, yachts, weldability, and aerospace components due to its strength, formability, and resistance to corrosion. While excellent for extrusion and welding, it is less suitable for casting due to its low silicon content.

Comparison 3003 Aluminum and 6061 Aluminum

Property Difference

3003 Aluminum Alloy

6061 Aluminum Alloy

Lower ultimate tensile strength

Higher ultimate tensile strength

Lower yield strength

Higher yield strength

Lower shear strength

Higher shear strength

Excellent corrosion resistance, particularly against water and air

Good corrosion resistance but slightly less than 3003 due to copper content

Higher thermal conductivity

Lower thermal conductivity

Fair machinability

Good machinability

Non-heat treatable

Heat treatable

Application Difference

3003 Aluminum Alloy Applications

6061 Aluminum Alloy Applications

Used in sheet metal stock and builder's hardware, chosen for formability and corrosion resistance

Employed in aerospace and automotive industries for aircraft structures, automotive chassis, and components due to high strength and corrosion resistance

Ideal for chemical equipment due to excellent corrosion resistance

Used in marine industry, particularly in yacht construction and small utility boats

Utilized in transportation for trucks, trailers, and fuel tanks

Ideal for recreational products like bicycle frames, scuba tanks, and fishing reels

Common in household applications like cabinets

Applied in construction and industrial sectors for architectural and structural applications, as well as various industrial parts

3003 Aluminum Sheet vs 6061 Aluminum Plate

Common Temper




H14, H18



T6, T651

3003 aluminum sheet has excellent formability, weldability, and moderate strength, widely used for general applications like food packaging and sheet metal work. 6061 aluminum plate has high strength, and hardness, and is suited for structural and load-bearing applications.


If you prioritize better corrosion resistance, higher thermal conductivity, and formability, 3003 aluminum is the better option. On the other hand, 6061 aluminum is ideal if you need higher strength (tensile, yield, and shear). The decision should be based on the specific mechanical and environmental requirements of your application.

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