Aluminum 5083

Aluminum 5083 is a corrosion-resistant, high-strength, non-heat-treatable alloy commonly used in CNC machining. It is commonly used in marine applications due to its resistance to saltwater corrosion.

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Aluminum machined housing with threaded holes on white

3.3547
GM41
A95083
AIMg 4.5 Mn
Al Mg 4.5 Mn 0.7

317 MPa

Ultimate Tensile Strength
227 MPa

Yield Strength
72 GPa

Young's Modulus(Elasticity)
12 %

Elongation at Break

At a Glance

Material Type
Metal
Material Name
Aluminum 5083
Alternative Names
3.3547 | GM41 | A95083 | AIMg 4.5 Mn | Al Mg 4.5 Mn 0.7
Process Compatibility
CNC Milling, CNC Turning

Properties Table of Aluminum 5083

Properties

Ultimate Tensile Strength 317 MPa(46,000 psi)
Yield Strength 227 MPa(33,000 psi)
Young's Modulus(Elasticity) 72 GPa(10.4 x 10^6 psi)
Elongation at Break 12 %
Physical Properties
Corrosion Resistance Excellent corrosion resistance, especially in marine environments
Magnetism Non-magnetic
Weldability Good Weldability with standard techniques such as MIG and TIG welding
Thermal Properties
Maximum Service Temperature Approximately 200-230°C (392-446°F) depending on conditions
Thermal Expansion Coefficient 23.8 x 10^﹣6/°C(at 20-100°C)
Thermal Conductivity 121-140W/(m·K) at 25°C (77°F)
Electrical Properties
Electrical Resistivity Approximately 0.049 ohm-cm(at 20°C)
ESD Safety Aluminum is generally considered ESD safe

Applications of Aluminum 5083

Ship hulls and decks
Aircraft fuselage sections and wing panels
Offshore platforms
Automotive and rail components
Cryogenic storage tanks
Architectural facades and panels
Pressure vessels
Machined components

Advantages of Aluminum 5083

Excellent corrosion resistance, ideal for marine applications
High strength, suitable for structural components in various industries
Weldable, facilitating fabrication and construction of complex structures
Easily formable through processes like extrusion, rolling, and forging
Maintains strength at low temperatures, suitable for cryogenic applications
Lightweight, contributing to overall weight reduction in structures and components
Machinable with proper tooling and techniques
Non-heat-treatable, eliminating the need for heat treatment processes

Raw Stock

CNC Machined

Finished Parts

Aluminum 5083 — Machining Notes

Aluminum 5083 in CNC Mac
is Aluminum 5083?

Aluminum 5083 in CNC Machining

Aluminum 5083 is a corrosion-resistant, high-strength, non-heat-treatable alloy commonly used in CNC machining. It is commonly used in marine applications due to its resistance to saltwater corrosion.

Its machinability is good, but challenges may arise due to its high strength, necessitating appropriate tooling. Carbide tools, particularly those with coatings like TiN, are preferred for their durability. High cutting speeds are recommended to minimize tool wear and the use of coolant aids in dissipating heat. Secure clamping and proper chip control prevent workpiece deformation and tool breakage. Feeds and speeds should be optimized based on machining requirements, and tool path strategies like climb milling can enhance surface finishes.

The chemical composition of 5083 aluminum is specified as follows: Aluminium constitutes the balance of the alloy, while other elements are present in limited amounts. Chromium ranges from 0.05% to a maximum of 0.25%, copper is limited to 0.1%, iron to 0.4%, magnesium is between 4.0% and 4.9%, manganese ranges from 0.4% to 1.0%, silicon is limited to 0.4%, titanium to a maximum of 0.15%, and zinc is restricted to 0.25%.

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What is Aluminum 5083?

Aluminum 5083 is a strong and corrosion-resistant alloy belonging to the 5xxx series of aluminum alloys. Composed primarily of magnesium, it has excellent strength and weldability.

Widely used in marine applications, such as shipbuilding and offshore structures, Aluminum 5083’s corrosion resistance is particularly valuable in harsh environments. Its alloy makeup includes magnesium (4.0% to 4.9%), manganese (0.4%), chromium (0.15%), and trace elements. It is known for retaining strength post-welding.

This alloy is popular for its structural integrity in various fabrication processes. With good formability, it finds use in transportation equipment and pressure vessels.

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FAQ

What is the difference between 6061 and 5083 aluminum?

6061 aluminum is heat-treatable, corrosion-resistant, and offers good weldability with medium to high strength. On the other hand, 5083 aluminum, a non-heat-treatable alloy, excels in marine environments with strong weldability and high strength.

Is 5083 aluminium marine grade?

Yes, 5083 aluminum is commonly used in marine applications and is considered marine-grade aluminum. Its excellent corrosion resistance, particularly in seawater, makes it suitable for shipbuilding and other marine structures.

Can aluminum 5083 be heat-treated?

No, aluminum 5083 is a non-heat-treatable alloy; its strength is obtained through cold working.