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5070 Aluminum vs. 8079 Aluminum

Both 5070 aluminum and 8079 aluminum are aluminum alloys. They have a moderately high 95% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is 5070 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, % 20
2.2
Fatigue Strength, MPa 150
56
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Tensile Strength: Ultimate (UTS), MPa 300
150
Tensile Strength: Yield (Proof), MPa 140
120

Thermal Properties

Latent Heat of Fusion, J/g 390
400
Maximum Temperature: Mechanical, °C 190
170
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 550
640
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 130
230
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
58
Electrical Conductivity: Equal Weight (Specific), % IACS 100
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 8.8
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1170
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
3.1
Resilience: Unit (Modulus of Resilience), kJ/m3 150
110
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 31
15
Strength to Weight: Bending, points 37
22
Thermal Diffusivity, mm2/s 53
92
Thermal Shock Resistance, points 14
6.4

Alloy Composition


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Aluminum (Al), % 92.4 to 95.7
98.1 to 99.3
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0 to 0.050
Iron (Fe), % 0 to 0.4
0.7 to 1.3
Magnesium (Mg), % 3.5 to 4.5
0
Manganese (Mn), % 0.4 to 0.8
0
Silicon (Si), % 0 to 0.25
0.050 to 0.3
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0.4 to 0.8
0 to 0.1
Residuals, % 0 to 0.15
0 to 0.15