• 5083


  • Known for exceptional performance in extreme environments
  • Used in shipbuilding due to its high resistance to attack by seawater and chemical environments
  • Alloy 5083 also retains exceptional strength after welding, having the highest strength of the non-heat treatable alloys but is not recommended for use in temperatures in excess of 65degC
  • Used in rail cars
  • Vehicle bodies
  • Tip truck bodies
  • Mine skips and cages
  • Pressure vessels
  • Greyish-white in colour, it is malleable, ductile and conductive to heat and electricity
  • A thin inert film of oxide protects the metal surface from further attack, thus giving the metal a form of resistance to corrosion.
  • This film of oxide can be further thickened by a process known as the anodizing
  • Welding can be made possible.
  • Anodized or spray coating possible to achieve different architectural effects
  • With its non-corrosive and good mechanical properties, each grade of Aluminium has a high range of applications.
  • Aluminium also possesses very high malleability, enabling it to be produced into a very thin foil.


Aluminum 5083 is a non-heat treatable alloy renowned for its exceptional combination of strength, corrosion resistance, and weldability. Composed primarily of aluminum (Al) with magnesium (Mg) and traces of manganese (Mn) as the primary alloying elements, aluminum 5083 offers a unique set of characteristics that make it highly valuable in various marine, structural, and aerospace applications. Here's a detailed write-up on aluminum 5083:


Aluminum 5083 is part of the 5xxx series of aluminum alloys. Its typical composition includes:
  • Aluminum (Al): 92.2-95.2%
  • Magnesium (Mg): 4.0-4.9%
  • Manganese (Mn): ≤0.40%
  • Chromium (Cr): ≤0.25%
  • Iron (Fe): ≤0.40%
  • Silicon (Si): ≤0.40%
  • Copper (Cu): ≤0.10%
  • Zinc (Zn): ≤0.25%
  • Titanium (Ti): ≤0.15%
  • Other elements: ≤0.05% each, ≤0.15% total
The precise composition may vary slightly depending on specific manufacturing requirements and standards.


  1. High Strength: Aluminum 5083 offers excellent strength-to-weight ratio, making it suitable for structural and load-bearing applications where weight reduction is essential. It exhibits high tensile strength and yield strength, providing reliable performance in demanding environments.
  2. Corrosion Resistance: Aluminum 5083 provides outstanding corrosion resistance in marine and aggressive environments, including seawater, salt spray, and industrial chemicals. The addition of magnesium enhances its resistance to corrosion, making it suitable for marine structures, offshore platforms, and chemical processing equipment.
  3. Weldability: Aluminum 5083 is readily weldable using various welding techniques, such as gas tungsten arc welding (GTAW), gas metal arc welding (GMAW), and resistance welding. It forms strong and durable welds with minimal risk of cracking or distortion, making it suitable for fabrication and assembly.
  4. Formability: Aluminum 5083 is highly formable, allowing it to be easily bent, formed, and shaped into various configurations. It can be cold worked to produce intricate designs and complex shapes without sacrificing its mechanical properties, making it suitable for manufacturing processes requiring forming and shaping.
  5. Machinability: Aluminum 5083 has good machinability, allowing for easy cutting, drilling, milling, and machining operations. It produces clean and smooth surfaces with minimal tool wear, making it suitable for precision machining and fabrication.
  6. Anodizing Properties: Aluminum 5083 responds well to various surface finishing treatments, including anodizing, painting, and coating. It can be anodized to enhance its corrosion resistance, durability, and aesthetic appearance, making it suitable for architectural and decorative applications.


  1. Marine Structures: Aluminum 5083 is widely used in the marine industry for manufacturing boat hulls, decks, superstructures, and fittings. Its excellent corrosion resistance, high strength, and weldability make it ideal for marine environments subjected to saltwater exposure and harsh weather conditions.
  2. Offshore Platforms: Aluminum 5083 finds applications in offshore platforms, oil rigs, and subsea equipment for its corrosion resistance and strength properties. It withstands the harsh conditions of offshore environments, including seawater, salt spray, and high winds.
  3. Chemical Processing Equipment: Aluminum 5083 is employed in the chemical processing industry for manufacturing reactors, vessels, tanks, and piping systems. Its corrosion resistance and weldability make it suitable for containing and transporting corrosive chemicals and fluids.
  4. Aerospace Components: Aluminum 5083 is used in the aerospace industry for manufacturing aircraft structures, fuselage panels, wing components, and engine parts. Its lightweight, high strength, and corrosion resistance contribute to the performance and reliability of aerospace vehicles.
  5. Structural Applications: Aluminum 5083 is utilized in structural applications requiring strength, corrosion resistance, and weldability. It is used in bridges, buildings, and infrastructure projects where lightweight materials with high performance characteristics are required.
  6. Defense and Military: Aluminum 5083 finds applications in defense and military equipment such as armored vehicles, naval vessels, and military aircraft. Its high strength-to-weight ratio and corrosion resistance make it suitable for protecting personnel and equipment in challenging environments.


Aluminum 5083 is a versatile and highly valuable alloy with excellent strength, corrosion resistance, and weldability, making it suitable for a wide range of marine, structural, aerospace, and industrial applications. Whether in marine structures, offshore platforms, chemical processing equipment, aerospace components, or defense systems, aluminum 5083 continues to demonstrate its value as a reliable and effective material choice. Its unique combination of properties makes it indispensable in modern manufacturing and engineering endeavors.

  • Shim / Foil
  • Sheet / Plate
  • Perforated (Sheet)
  • Cr: 0.05-0.25%
  • Cu: 0.40-1.00%
  • Fe: 0.40% max
  • Mg: 4.00-4.90%
  • Mn: 0.10% max
  • Si: 0.40% max
  • Zn: 0.25% max
  • Ti: 0.15% max
  • Al: Remaining %
  • Tensile Strength: 330 MPa
  • Hardness: 95 HB
  • Elongation: 17%
  • Modulus of Elasticity: 72 MPa
  • Proof Strength: 240 MPa
  • Shear Strength: 185 MPa

Enquiry Form