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5051A-O Aluminum

5051A-O aluminum is 5051A aluminum in the annealed condition. The graph bars on the material properties cards below compare 5051A-O 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 9.9 x 106 psi

Elongation at Break

21 %

Fatigue Strength

61 MPa 8.8 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.7 x 106 psi

Shear Strength

110 MPa 15 x 103 psi

Tensile Strength: Ultimate (UTS)

170 MPa 25 x 103 psi

Tensile Strength: Yield (Proof)

56 MPa 8.1 x 103 psi

Thermal Properties

Latent Heat of Fusion

400 J/g

Maximum Temperature: Mechanical

190 °C 370 °F

Melting Completion (Liquidus)

640 °C 1190 °F

Melting Onset (Solidus)

610 °C 1120 °F

Specific Heat Capacity

900 J/kg-K 0.22 BTU/lb-°F

Thermal Conductivity

150 W/m-K 88 BTU/h-ft-°F

Thermal Expansion

23 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

39 % IACS

Electrical Conductivity: Equal Weight (Specific)

130 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Density

2.7 g/cm3 170 lb/ft3

Embodied Carbon

8.5 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)

27 MJ/m3

Resilience: Unit (Modulus of Resilience)

23 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

50 points

Strength to Weight: Axial

17 points

Strength to Weight: Bending

25 points

Thermal Diffusivity

63 mm2/s

Thermal Shock Resistance

7.6 points

Alloy Composition

Aluminum (Al)Al 96.1 to 98.6
Magnesium (Mg)Mg 1.4 to 2.1
Iron (Fe)Fe 0 to 0.45
Silicon (Si)Si 0 to 0.3
Chromium (Cr)Cr 0 to 0.3
Manganese (Mn)Mn 0 to 0.25
Zinc (Zn)Zn 0 to 0.2
Titanium (Ti)Ti 0 to 0.1
Copper (Cu)Cu 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

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

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

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

Properties and Selection: Nonferrous Alloys and Special-Purpose Materials, ASM Handbook vol. 2, ASM International, 1993