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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.

Aluminum (Al) 92.4 to 95.6
Magnesium (Mg) 4.0 to 4.9
Manganese (Mn) 0.4 to 1.0
Silicon (Si) 0 to 0.4
Iron (Fe) 0 to 0.4
Chromium (Cr) 0.050 to 0.25
Zinc (Zn) 0 to 0.25
Titanium (Ti) 0 to 0.15
Copper (Cu) 0 to 0.1
Residuals 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