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1050A-O Aluminum

1050A-O aluminum is 1050A aluminum in the annealed condition. It has the highest ductility compared to the other variants of 1050A aluminum. The graph bars on the material properties cards below compare 1050A-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

Brinell Hardness

20

Elastic (Young's, Tensile) Modulus

68 GPa 9.9 x 106 psi

Elongation at Break

33 %

Fatigue Strength

27 MPa 4.0 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.7 x 106 psi

Shear Strength

51 MPa 7.4 x 103 psi

Tensile Strength: Ultimate (UTS)

77 MPa 11 x 103 psi

Tensile Strength: Yield (Proof)

23 MPa 3.3 x 103 psi

Thermal Properties

Latent Heat of Fusion

400 J/g

Maximum Temperature: Mechanical

170 °C 340 °F

Melting Completion (Liquidus)

660 °C 1220 °F

Melting Onset (Solidus)

650 °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

24 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

59 % IACS

Electrical Conductivity: Equal Weight (Specific)

200 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.0 % 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

1200 L/kg 140 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

19 MJ/m3

Resilience: Unit (Modulus of Resilience)

3.8 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

50 points

Strength to Weight: Axial

7.9 points

Strength to Weight: Bending

15 points

Thermal Diffusivity

94 mm2/s

Thermal Shock Resistance

3.4 points

Alloy Composition

Aluminum (Al)Al 99.5 to 100
Iron (Fe)Fe 0 to 0.4
Silicon (Si)Si 0 to 0.25
Zinc (Zn)Zn 0 to 0.070
Manganese (Mn)Mn 0 to 0.050
Titanium (Ti)Ti 0 to 0.050
Copper (Cu)Cu 0 to 0.050
Magnesium (Mg)Mg 0 to 0.050

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

Followup Questions

Further Reading

EN 754-2: Aluminium and aluminium alloys. Cold drawn rod/bar and tube. Mechanical properties

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

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

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

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

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