Aluminium Alloy 5083 Datasheet

Aluminium Alloy 5083 Datasheet

Aluminium 5083 is known for exceptional performance in extreme environments. 5083 is highly resistant to attack by both seawater and industrial chemical environments.Alloy 5083 also retains exceptional strength after welding. It has the highest strength of the non-heat treatable alloys but is not recommended for use in temperatures in excess of 65°C.

Applications for Aluminium Alloy 5083
  • Shipbuilding
  • Vehicle bodies
  • Pressure vessels
  • Marine Applications
  • Drilling Rigs
  • Transportation Equipments
  • TV/Communication Towers
Chemical Compositions of Aluminium Alloy 5083
Element Composition %
Manganese (Mn) 0.40 - 1.0
Iron (Fe) 0.00 - 0.40
Copper (Cu) 0.0 - 0.10
Magnesium (Mg) 4.0 - 4.90
Silicon (Si) 0.0 - 0.40
Zinc (Zn) 0.0 - 0.25
Chromium (Cr) 0.05 - 0.25
Titanium (Ti) 0.0 - 0.15
Aluminium (Al) Balance
Mechanical Properties of Aluminium Alloy 5083 - H111
Property Value
Proof Stress 115 Min MPa
Tensile Strength 270 - 345 MPa
Elongation at 50 mm 15 Min %
Hardness Brinell 75 HB
Bend Radius 90° 2.5 x t
Please note that Mechanical Properties shown are for H111 tempe
Mechanical Properties of Aluminium Alloy 5083 - H116
Property Value
Proof Stress 215 Min MPa
Tensile Strength 305 MPa
Elongation at 50 mm 15 Min %
Hardness Brinell 85 HB
Bend Radius 90° 3.5 x t
Please note that Mechanical Properties shown are for H116 temper
Bending Properties of Aluminium Alloy 5083

Aluminium Alloy 5083 is capable of being bent cold through an angle of 90 degrees around a pin having a radius equal to N times the thickness (t) of the sheet without cracking.

One of the key factors to consider when working with marine grade Aluminium is the minimum bend radius. This refers to the smallest radius that the metal can be bent without cracking or damaging the plates. When the metal is bent beyond its minimum bend radius, the stress on the material becomes too great and it can begin to crack or break. To prevent this and maintain the structural integrity of marine grade Aluminium, it is important to adhere to the recommended minimum bend radii for the specific alloy, temper and thickness of aluminum being used.

Aluminium Alloy 5083 Weldability
Gas Average
Arc Excellent
Brazability Poor
Resistance Excellent
Aluminium Alloy 5083 Fabrication
Machinability Poor
Workability - Cold Average
Generic Physical Properties of Aluminium Alloy 5083
Property Value
Density 2.65 g/cm3
Melting Point 570°C
Thermal Expansion 25.0 ×10−6 /K
Modulus of Elasticity 72 GPa
Thermal Conductivity 121 W/m.K
Electrical Resistivity 0.058 ×10−6Ω.m
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Download the full PDF version of the Aluminium Alloy 5083 H116