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5657 Aluminum vs. 8079 Aluminum

Both 5657 aluminum and 8079 aluminum are aluminum alloys. They have a very high 99% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 5657 aluminum and the bottom bar is 8079 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
69
Elongation at Break, % 6.6 to 15
2.2
Fatigue Strength, MPa 74 to 88
56
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Tensile Strength: Ultimate (UTS), MPa 150 to 200
150
Tensile Strength: Yield (Proof), MPa 140 to 170
120

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 180
170
Melting Completion (Liquidus), °C 660
650
Melting Onset (Solidus), °C 640
640
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 210
230
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 54
58
Electrical Conductivity: Equal Weight (Specific), % IACS 180
190

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.0
Density, g/cm3 2.7
2.8
Embodied Carbon, kg CO2/kg material 8.4
8.2
Embodied Energy, MJ/kg 160
150
Embodied Water, L/kg 1200
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.7 to 27
3.1
Resilience: Unit (Modulus of Resilience), kJ/m3 140 to 200
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 15 to 20
15
Strength to Weight: Bending, points 23 to 28
22
Thermal Diffusivity, mm2/s 84
92
Thermal Shock Resistance, points 6.7 to 8.6
6.4

Alloy Composition

Aluminum (Al), % 98.5 to 99.4
98.1 to 99.3
Copper (Cu), % 0 to 0.1
0 to 0.050
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.1
0.7 to 1.3
Magnesium (Mg), % 0.6 to 1.0
0
Manganese (Mn), % 0 to 0.030
0
Silicon (Si), % 0 to 0.080
0.050 to 0.3
Vanadium (V), % 0 to 0.050
0
Zinc (Zn), % 0 to 0.050
0 to 0.1
Residuals, % 0 to 0.050
0 to 0.15