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1100A-O Aluminum

1100A-O aluminum is 1100A aluminum in the annealed condition. It has the lowest strength and highest ductility compared to the other variants of 1100A aluminum. The graph bars on the material properties cards below compare 1100A-O aluminum to: 1000-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 10 x 106 psi

Elongation at Break

34 %

Fatigue Strength

35 MPa 5.0 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.8 x 106 psi

Shear Strength

59 MPa 8.6 x 103 psi

Tensile Strength: Ultimate (UTS)

89 MPa 13 x 103 psi

Tensile Strength: Yield (Proof)

29 MPa 4.1 x 103 psi

Thermal Properties

Latent Heat of Fusion

400 J/g

Maximum Temperature: Mechanical

170 °C 340 °F

Melting Completion (Liquidus)

640 °C 1190 °F

Melting Onset (Solidus)

640 °C 1190 °F

Specific Heat Capacity

900 J/kg-K 0.22 BTU/lb-°F

Thermal Conductivity

230 W/m-K 130 BTU/h-ft-°F

Thermal Expansion

23 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

60 % IACS

Electrical Conductivity: Equal Weight (Specific)

200 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Density

2.7 g/cm3 170 lb/ft3

Embodied Carbon

8.2 kg CO2/kg material

Embodied Energy

150 MJ/kg 66 x 103 BTU/lb

Embodied Water

1190 L/kg 140 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

23 MJ/m3

Resilience: Unit (Modulus of Resilience)

5.9 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

50 points

Strength to Weight: Axial

9.1 points

Strength to Weight: Bending

16 points

Thermal Diffusivity

93 mm2/s

Thermal Shock Resistance

4.0 points

Alloy Composition

Aluminum (Al)Al 99 to 100
Silicon (Si)Si 0 to 1.0
Iron (Fe)Fe 0 to 1.0
Copper (Cu)Cu 0.050 to 0.2
Titanium (Ti)Ti 0 to 0.1
Zinc (Zn)Zn 0 to 0.1
Magnesium (Mg)Mg 0 to 0.1
Manganese (Mn)Mn 0 to 0.050
Residualsres. 0 to 0.15

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

Followup Questions

Further Reading

Iron in Aluminium Alloys: Impurity and Alloying Element, N. A. Belov et al., 2002

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

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