MakeItFrom.com
Menu (ESC)

5059 (AlMg5.5MnZnZr, A95059) Aluminum

5059 aluminum is a 5000-series aluminum alloy: the main alloying addition is magnesium, and it is formulated for primary forming into wrought products. 5059 is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-5059. A95059 is the UNS number. Additionally, the EN chemical designation is AlMg5,5MnZnZr.

It received its standard designation in 1999, making it a fairly young material.

It has the lowest thermal conductivity among the 5000-series alloys in the database.

The properties of 5059 aluminum include five 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 5059 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

Elastic (Young's, Tensile) Modulus

69 GPa 9.9 x 106 psi

Elongation at Break

11 to 25 %

Fatigue Strength

170 to 240 MPa 24 to 35 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.7 x 106 psi

Shear Strength

220 to 250 MPa 33 to 36 x 103 psi

Tensile Strength: Ultimate (UTS)

350 to 410 MPa 51 to 60 x 103 psi

Tensile Strength: Yield (Proof)

170 to 300 MPa 25 to 43 x 103 psi

Thermal Properties

Latent Heat of Fusion

390 J/g

Maximum Temperature: Corrosion

65 °C 150 °F

Maximum Temperature: Mechanical

210 °C 420 °F

Melting Completion (Liquidus)

650 °C 1200 °F

Melting Onset (Solidus)

510 °C 960 °F

Specific Heat Capacity

900 J/kg-K 0.21 BTU/lb-°F

Thermal Conductivity

110 W/m-K 62 BTU/h-ft-°F

Thermal Expansion

24 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

29 % IACS

Electrical Conductivity: Equal Weight (Specific)

95 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Density

2.7 g/cm3 170 lb/ft3

Embodied Carbon

9.1 kg CO2/kg material

Embodied Energy

160 MJ/kg 67 x 103 BTU/lb

Embodied Water

1160 L/kg 140 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

42 to 75 MJ/m3

Resilience: Unit (Modulus of Resilience)

220 to 650 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

50 points

Strength to Weight: Axial

36 to 42 points

Strength to Weight: Bending

41 to 45 points

Thermal Diffusivity

44 mm2/s

Thermal Shock Resistance

16 to 18 points

Alloy Composition

Among wrought aluminum alloys, the composition of 5059 aluminum is notable for containing a comparatively high amount of magnesium (Mg) and including zirconium (Zr). Magnesium promotes hardenability through both heat treatment and strain hardening mechanisms. It also increases susceptibility to intergranular corrosion. Zirconium is used to increase an alloy's recrystallization temperature, which increases the temperature at which the alloy can be used without permanent loss of mechanical properties.

Aluminum (Al) 89.9 to 94
Magnesium (Mg) 5.0 to 6.0
Manganese (Mn) 0.6 to 1.2
Zinc (Zn) 0.4 to 0.9
Iron (Fe) 0 to 0.5
Silicon (Si) 0 to 0.45
Zirconium (Zr) 0.050 to 0.25
Chromium (Cr) 0 to 0.25
Copper (Cu) 0 to 0.25
Titanium (Ti) 0 to 0.2
Residuals 0 to 0.15

All values are % weight. Ranges represent what is permitted under applicable standards.

Followup Questions

Similar Alloys

Further Reading

ASTM B928: Standard Specification for High Magnesium Aluminum-Alloy Sheet and Plate for Marine Service

Handbook of Aluminum vol. 2: Alloy Production and Materials Manufacturing, George Totten and D. Scott MacKenzie (editors), 2003

Aluminum: Properties and Physical Metallurgy, John E. Hatch (editor), 1984

ASTM B209: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate

EN 485-2: Aluminium and aluminium alloys. Sheet, strip and plate. Mechanical properties

ISO 6361-2: Wrought aluminium and aluminium alloys - Sheets, strips and plates - Part 2: Mechanical properties

EN 573-3: Aluminium and aluminium alloys. Chemical composition and form of wrought products. Chemical composition and form of products