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8079 Aluminum vs. 5082 Aluminum

Both 8079 aluminum and 5082 aluminum are aluminum alloys. They have a very 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 8079 aluminum and the bottom bar is 5082 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
67
Elongation at Break, % 2.2
1.1
Fatigue Strength, MPa 56
110 to 130
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
25
Tensile Strength: Ultimate (UTS), MPa 150
380 to 400
Tensile Strength: Yield (Proof), MPa 120
300 to 340

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 170
180
Melting Completion (Liquidus), °C 650
640
Melting Onset (Solidus), °C 640
560
Specific Heat Capacity, J/kg-K 900
910
Thermal Conductivity, W/m-K 230
130
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 58
32
Electrical Conductivity: Equal Weight (Specific), % IACS 190
110

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
9.5
Density, g/cm3 2.8
2.7
Embodied Carbon, kg CO2/kg material 8.2
8.9
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.1
4.0 to 4.3
Resilience: Unit (Modulus of Resilience), kJ/m3 110
670 to 870
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
51
Strength to Weight: Axial, points 15
39 to 41
Strength to Weight: Bending, points 22
43 to 45
Thermal Diffusivity, mm2/s 92
54
Thermal Shock Resistance, points 6.4
17 to 18

Alloy Composition

Aluminum (Al), % 98.1 to 99.3
93.5 to 96
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 0 to 0.050
0 to 0.15
Iron (Fe), % 0.7 to 1.3
0 to 0.35
Magnesium (Mg), % 0
4.0 to 5.0
Manganese (Mn), % 0
0 to 0.15
Silicon (Si), % 0.050 to 0.3
0 to 0.2
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.1
0 to 0.25
Residuals, % 0
0 to 0.15