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2011A-T4 Aluminum

2011A-T4 aluminum is 2011A aluminum in the T4 temper. To achieve this temper, the metal is solution heat-treated and naturally aged. It has the lowest strength and highest ductility compared to the other variants of 2011A aluminum.

The graph bars on the material properties cards below compare 2011A-T4 aluminum to: 2000-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

70 GPa 10 x 106 psi

Elongation at Break

16 %

Fatigue Strength

75 MPa 11 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.8 x 106 psi

Shear Strength

190 MPa 27 x 103 psi

Tensile Strength: Ultimate (UTS)

310 MPa 45 x 103 psi

Tensile Strength: Yield (Proof)

140 MPa 21 x 103 psi

Thermal Properties

Latent Heat of Fusion

390 J/g

Maximum Temperature: Mechanical

190 °C 370 °F

Melting Completion (Liquidus)

660 °C 1230 °F

Melting Onset (Solidus)

550 °C 1020 °F

Specific Heat Capacity

870 J/kg-K 0.21 BTU/lb-°F

Thermal Conductivity

130 W/m-K 76 BTU/h-ft-°F

Thermal Expansion

23 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

33 % IACS

Electrical Conductivity: Equal Weight (Specific)

96 % IACS

Otherwise Unclassified Properties

Base Metal Price

11 % relative

Density

3.1 g/cm3 190 lb/ft3

Embodied Carbon

7.9 kg CO2/kg material

Embodied Energy

150 MJ/kg 63 x 103 BTU/lb

Embodied Water

1150 L/kg 140 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

40 MJ/m3

Resilience: Unit (Modulus of Resilience)

140 kJ/m3

Stiffness to Weight: Axial

13 points

Stiffness to Weight: Bending

44 points

Strength to Weight: Axial

28 points

Strength to Weight: Bending

33 points

Thermal Diffusivity

49 mm2/s

Thermal Shock Resistance

14 points

Alloy Composition

Aluminum (Al)Al 91.5 to 95.1
Copper (Cu)Cu 4.5 to 6.0
Lead (Pb)Pb 0.2 to 0.6
Bismuth (Bi)Bi 0.2 to 0.6
Iron (Fe)Fe 0 to 0.5
Silicon (Si)Si 0 to 0.4
Zinc (Zn)Zn 0 to 0.3
Residualsres. 0 to 0.15

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

Followup Questions

Further Reading

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

CRC Materials Science and Engineering Handbook, 4th ed., James F. Shackelford et al. (editors), 2015