5083 Aluminum vs 6061 Aluminum

5083 Aluminum vs 6061 Aluminum
By HDM Team
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5083 aluminum alloy and 6061 aluminum alloy are both good strength aluminum alloys and both have corrosion resistance. This may affect you to decide for your projects. Take a few minutes to read this blog and HDM will help you make a better choice.

5083 Aluminum Overview

Marine grade aluminum 5083
At the forefront of non-heat-treatable alloys , 5083 aluminum alloy is a powerhouse in applications demanding unparalleled tensile strength and efficient weld performance.
Boasting notable formability and weldability, it emerges as the top choice for diverse structures. Its corrosion resistance proves pivotal in marine settings, complemented by impressive thermal conductivity and sustained formability in tempered conditions.
This ideal welding and cold work hardening alloy adapts easily to diverse fabrication requirements. Its resilience in cryogenic conditions establishes 5083 as a key aluminum alloy, exhibiting robust strength and broad versatility.

6061 Aluminum Overview

6061-T6 Aluminum sheets
6061 aluminum alloy, a widely extruded material, boasts versatility and strength as an aluminum-silicon-magnesium alloy strengthened by precipitation hardening. Distinguished as a wrought alloy, it accommodates various fabrication methods, including extrusion, rolling, and forging.
With a balance of higher strength, corrosion resistance, and machinability, 6061 Aluminum Sheet & Plate stands as a top choice for structural framing, base plates, gussets, and applications in the aerospace, marine, and automotive sectors.
Its heat-treatability, available in tempers such as 6061-O, 6061-T4, 6061-T6, and 6061-T651, meets various manufacturing requirements, from stress resistance to ease of welding and machining.

Comparison 5083 Aluminum and 6061 Aluminum

Property Difference

5083 Aluminum Alloy

6061 Aluminum Alloy

Lower tensile strength

Higher tensile strength

Lower yield strength

Higher yield strength

Higher shear strength

Lower shear strength

Higher corrosion resistance

Lower corrosion resistance

Non-heat treatable

Heat treatable

Less corrosion resistance

Better corrosion resistance

Poor machinability

Good machinability

Better welding properties

Specific welding techniques required

Application Difference

5083 Aluminum Alloy Applications

6061 Aluminum Alloy Applications

Widely used in various applications of marine requiring high corrosion resistance

Commonly used material for aircraft due to its better processability than similar materials

Preferred for offshore platforms and structures due to its excellent corrosion resistance in harsh marine environments

Widely used in the automotive industry for components requiring a balance of strength and weight

Used in various structural applications requiring corrosion resistance, such as bridges and buildings in coastal areas

Commonly used in general structural applications, it offers a balanced mix of strength and formability

5083 Aluminum Plate vs 6061 Aluminum Plate

Common Temper




H111, H116, H32



T6, T651

5083 aluminum plate is known for its superior strength and excellent corrosion resistance and is ideal for marine environments and applications in shipbuilding, vehicles, and the food and chemical industries.
6061 aluminum plate offers higher strength than 5083, better machining performance, and excellent surface treatment options, making it suitable for aerospace and automotive products.


When facing low temperatures or corrosive environments, the 5083 aluminum alloy emerges as the prime candidate, renowned for its exceptional corrosion resistance and high strength, making it ideal for marine applications and offshore structures.
Conversely, if your project involves high-temperature applications and demands superior strength, the 6061 aluminum alloy stands out with excellent machinability and a notable strength-to-weight ratio.

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