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5019 (AlMg5, 3.3555, A95019) Aluminum

5019 aluminum is a 5000-series aluminum alloy: the main alloying addition is magnesium, and it is formulated for primary forming into wrought products. 5019 is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-5019. AlMg5 is the EN chemical designation. A95019 is the UNS number. Additionally, the AFNOR (French) designation is A-G5.

It originally received its standard designation in 1972.

The properties of 5019 aluminum include thirteen 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 5019 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

68 GPa 9.8 x 106 psi

Elongation at Break

2.2 to 18 %

Fatigue Strength

100 to 160 MPa 15 to 23 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.7 x 106 psi

Shear Strength

170 to 210 MPa 25 to 30 x 103 psi

Tensile Strength: Ultimate (UTS)

280 to 360 MPa 41 to 53 x 103 psi

Tensile Strength: Yield (Proof)

120 to 300 MPa 18 to 43 x 103 psi

Thermal Properties

Latent Heat of Fusion

400 J/g

Maximum Temperature: Mechanical

180 °C 360 °F

Melting Completion (Liquidus)

640 °C 1190 °F

Melting Onset (Solidus)

540 °C 1000 °F

Specific Heat Capacity

900 J/kg-K 0.22 BTU/lb-°F

Thermal Conductivity

130 W/m-K 73 BTU/h-ft-°F

Thermal Expansion

24 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

29 % IACS

Electrical Conductivity: Equal Weight (Specific)

98 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Density

2.7 g/cm3 170 lb/ft3

Embodied Carbon

9.0 kg CO2/kg material

Embodied Energy

150 MJ/kg 66 x 103 BTU/lb

Embodied Water

1180 L/kg 140 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

7.6 to 40 MJ/m3

Resilience: Unit (Modulus of Resilience)

110 to 650 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

51 points

Strength to Weight: Axial

29 to 38 points

Strength to Weight: Bending

35 to 42 points

Thermal Diffusivity

52 mm2/s

Thermal Shock Resistance

13 to 16 points

Alloy Composition

Among wrought aluminum alloys, the composition of 5019 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) 91.5 to 95.3
Magnesium (Mg) 4.5 to 5.6
Manganese (Mn) 0.1 to 0.6
Iron (Fe) 0 to 0.5
Silicon (Si) 0 to 0.4
Chromium (Cr) 0 to 0.2
Titanium (Ti) 0 to 0.2
Zinc (Zn) 0 to 0.2
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 754-2: Aluminium and aluminium alloys. Cold drawn rod/bar and tube. Mechanical properties

EN 755-2: Aluminium and aluminium alloys. Extruded rod/bar, tube and profiles. Mechanical properties

ASM Specialty Handbook: Aluminum and Aluminum Alloys, J. R. Davis (editor), 1993

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