5083 (AlMg4.5Mn0.7, 3.3547, N8, A95083) Aluminum
5083 aluminum is a 5000-series aluminum alloy: the main alloying addition is magnesium, and it is formulated for primary forming into wrought products. 5083 is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-5083. N8 is the British Standard (BS) designation. A95083 is the UNS number. Additionally, the EN chemical designation is AlMg4,5Mn0,7. And the AFNOR (French) designation is A-G4,5Mn.
It originally received its standard designation in 1954. This material is well established: the Further Reading section below cites a number of published standards, and that list is not necessarily exhaustive.
The properties of 5083 aluminum include fifteen common variations. This page shows summary ranges across all of them. For more specific values, follow the links immediately below. The graph bars on the material properties cards further below compare 5083 aluminum to: 5000-series alloys (top), all aluminum alloys (middle), and the entire database (bottom). A full bar means this is the highest value in the relevant set. A half-full bar means it's 50% of the highest, and so on.
Mechanical Properties
Brinell Hardness
75 to 110
Elastic (Young's, Tensile) Modulus
68 GPa 9.9 x 106 psi
Elongation at Break
1.1 to 17 %
Fatigue Strength
93 to 190 MPa 13 to 27 x 103 psi
Poisson's Ratio
0.33
Shear Modulus
26 GPa 3.7 x 106 psi
Shear Strength
170 to 220 MPa 25 to 32 x 103 psi
Tensile Strength: Ultimate (UTS)
290 to 390 MPa 41 to 57 x 103 psi
Tensile Strength: Yield (Proof)
110 to 340 MPa 17 to 50 x 103 psi
Thermal Properties
Latent Heat of Fusion
400 J/g
Maximum Temperature: Corrosion
65 °C 150 °F
Maximum Temperature: Mechanical
190 °C 370 °F
Melting Completion (Liquidus)
640 °C 1180 °F
Melting Onset (Solidus)
580 °C 1080 °F
Specific Heat Capacity
900 J/kg-K 0.22 BTU/lb-°F
Thermal Conductivity
120 W/m-K 68 BTU/h-ft-°F
Thermal Expansion
24 µm/m-K
Electrical Properties
Electrical Conductivity: Equal Volume
29 % IACS
Electrical Conductivity: Equal Weight (Specific)
96 % IACS
Otherwise Unclassified Properties
Base Metal Price
9.5 % relative
Calomel Potential
-780 mV
Density
2.7 g/cm3 170 lb/ft3
Embodied Carbon
8.9 kg CO2/kg material
Embodied Energy
150 MJ/kg 66 x 103 BTU/lb
Embodied Water
1170 L/kg 140 gal/lb
Common Calculations
Resilience: Ultimate (Unit Rupture Work)
4.2 to 42 MJ/m3
Resilience: Unit (Modulus of Resilience)
95 to 860 kJ/m3
Stiffness to Weight: Axial
14 points
Stiffness to Weight: Bending
50 points
Strength to Weight: Axial
29 to 40 points
Strength to Weight: Bending
36 to 44 points
Thermal Diffusivity
48 mm2/s
Thermal Shock Resistance
12 to 17 points
Alloy Composition
Among wrought aluminum alloys, the composition of 5083 aluminum is notable for containing a comparatively high amount of magnesium (Mg). Magnesium promotes hardenability through both heat treatment and strain hardening mechanisms. It also increases susceptibility to intergranular corrosion.
| Al | 92.4 to 95.6 | |
| Mg | 4.0 to 4.9 | |
| Mn | 0.4 to 1.0 | |
| Si | 0 to 0.4 | |
| Fe | 0 to 0.4 | |
| Cr | 0.050 to 0.25 | |
| Zn | 0 to 0.25 | |
| Ti | 0 to 0.15 | |
| Cu | 0 to 0.1 | |
| res. | 0 to 0.15 |
All values are % weight. Ranges represent what is permitted under applicable standards.
Followup Questions
Similar Alloys
Further Reading
EN 586-2: Aluminium and aluminium alloys. Forgings. Mechanical properties and additional property requirements.
ASTM B247: Standard Specification for Aluminum and Aluminum-Alloy Die Forgings, Hand Forgings, and Rolled Ring Forgings
ASTM B928: Standard Specification for High Magnesium Aluminum-Alloy Sheet and Plate for Marine Service
ASTM B210: Standard Specification for Aluminum and Aluminum-Alloy Drawn Seamless Tubes
ASTM B547: Standard Specification for Aluminum and Aluminum-Alloy Formed and Arc-Welded Round Tube
ASTM B221: Standard Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes
Environmental Degradation of Advanced and Traditional Engineering Materials, Lloyd H. Hihara et al., 2014.
EN 754-2: Aluminium and aluminium alloys. Cold drawn rod/bar and tube. Mechanical properties
ASTM B209: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate
EN 755-2: Aluminium and aluminium alloys. Extruded rod/bar, tube and profiles. Mechanical properties