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1080A (Al99.8(A), 3.0285, 1A) Aluminum

1080A aluminum is a 1000-series aluminum alloy: it is considered commercially pure, and is formulated for primary forming into wrought products. 1080A is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-1080A. 1A is the British Standard (BS) designation. Additionally, the EN chemical designation is Al99,8(A). And the AFNOR (French) designation is A8.

It originally received its standard designation in 1972.

The properties of 1080A aluminum include ten 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 1080A 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

18 to 40

Elastic (Young's, Tensile) Modulus

68 GPa 9.9 x 106 psi

Elongation at Break

2.3 to 34 %

Fatigue Strength

18 to 50 MPa 2.6 to 7.3 x 103 psi

Poisson's Ratio


Shear Modulus

26 GPa 3.7 x 106 psi

Shear Strength

49 to 81 MPa 7.1 to 12 x 103 psi

Tensile Strength: Ultimate (UTS)

74 to 140 MPa 11 to 21 x 103 psi

Tensile Strength: Yield (Proof)

17 to 120 MPa 2.5 to 17 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 1180 °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

62 % IACS

Electrical Conductivity: Equal Weight (Specific)

200 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative


2.7 g/cm3 170 lb/ft3

Embodied Carbon

8.3 kg CO2/kg material

Embodied Energy

160 MJ/kg 67 x 103 BTU/lb

Embodied Water

1200 L/kg 140 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

3.1 to 19 MJ/m3

Resilience: Unit (Modulus of Resilience)

2.1 to 100 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

50 points

Strength to Weight: Axial

7.6 to 15 points

Strength to Weight: Bending

14 to 22 points

Thermal Diffusivity

94 mm2/s

Thermal Shock Resistance

3.3 to 6.4 points

Alloy Composition

Among wrought aluminum alloys, the composition of 1080A aluminum is notable for including gallium (Ga). Gallium is used to improve corrosion resistance and to modify an alloy's response to etching, brightening, and similar treatments.

Aluminum (Al)Al 99.8 to 100
Silicon (Si)Si 0 to 0.15
Iron (Fe)Fe 0 to 0.15
Zinc (Zn)Zn 0 to 0.060
Copper (Cu)Cu 0 to 0.030
Gallium (Ga)Ga 0 to 0.030
Manganese (Mn)Mn 0 to 0.020
Titanium (Ti)Ti 0 to 0.020
Magnesium (Mg)Mg 0 to 0.020

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

Followup Questions

Similar Alloys

Further Reading

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

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