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5457 (A95457) Aluminum

5457 aluminum is a 5000-series aluminum alloy: the main alloying addition is magnesium, and it is formulated for primary forming into wrought products. 5457 is the Aluminum Association (AA) designation for this material. In European standards, it will be given as EN AW-5457. A95457 is the UNS number.

It originally received its standard designation in 1957.

The properties of 5457 aluminum include four 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 5457 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

Brinell Hardness

32 to 55

Elastic (Young's, Tensile) Modulus

68 GPa 9.9 x 106 psi

Elongation at Break

6.0 to 22 %

Fatigue Strength

55 to 98 MPa 8.0 to 14 x 103 psi

Poisson's Ratio

0.33

Shear Modulus

26 GPa 3.7 x 106 psi

Shear Strength

85 to 130 MPa 12 to 18 x 103 psi

Tensile Strength: Ultimate (UTS)

130 to 210 MPa 19 to 30 x 103 psi

Tensile Strength: Yield (Proof)

50 to 190 MPa 7.3 to 27 x 103 psi

Thermal Properties

Latent Heat of Fusion

400 J/g

Maximum Temperature: Mechanical

180 °C 360 °F

Melting Completion (Liquidus)

660 °C 1210 °F

Melting Onset (Solidus)

630 °C 1170 °F

Specific Heat Capacity

900 J/kg-K 0.22 BTU/lb-°F

Thermal Conductivity

180 W/m-K 100 BTU/h-ft-°F

Thermal Expansion

24 µm/m-K

Electrical Properties

Electrical Conductivity: Equal Volume

46 % IACS

Electrical Conductivity: Equal Weight (Specific)

150 % IACS

Otherwise Unclassified Properties

Base Metal Price

9.5 % relative

Density

2.7 g/cm3 170 lb/ft3

Embodied Carbon

8.4 kg CO2/kg material

Embodied Energy

160 MJ/kg 67 x 103 BTU/lb

Embodied Water

1190 L/kg 140 gal/lb

Common Calculations

Resilience: Ultimate (Unit Rupture Work)

12 to 23 MJ/m3

Resilience: Unit (Modulus of Resilience)

18 to 250 kJ/m3

Stiffness to Weight: Axial

14 points

Stiffness to Weight: Bending

50 points

Strength to Weight: Axial

13 to 21 points

Strength to Weight: Bending

21 to 28 points

Thermal Diffusivity

72 mm2/s

Thermal Shock Resistance

5.7 to 9.0 points

Alloy Composition

Among wrought aluminum alloys, the composition of 5457 aluminum is notable for including vanadium (V). Vanadium is used to reduce grain size and increase recrystallization temperature.

Aluminum (Al)Al 97.8 to 99.05
Magnesium (Mg)Mg 0.8 to 1.2
Manganese (Mn)Mn 0.15 to 0.45
Copper (Cu)Cu 0 to 0.2
Iron (Fe)Fe 0 to 0.1
Silicon (Si)Si 0 to 0.080
Zinc (Zn)Zn 0 to 0.050
Vanadium (V)V 0 to 0.050
Residualsres. 0 to 0.1

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

Followup Questions

Similar Alloys

Further Reading

ASTM B209: Standard Specification for Aluminum and Aluminum-Alloy Sheet and Plate

Aluminum Standards and Data, Aluminum Association Inc., 2013

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