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6082 Aluminum vs. 7108 Aluminum

Both 6082 aluminum and 7108 aluminum are aluminum alloys. They have a moderately high 95% of their average alloy composition in common. There are 30 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 6082 aluminum and the bottom bar is 7108 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
69
Elongation at Break, % 6.3 to 18
11
Fatigue Strength, MPa 55 to 130
120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 84 to 220
210
Tensile Strength: Ultimate (UTS), MPa 140 to 340
350
Tensile Strength: Yield (Proof), MPa 85 to 320
290

Thermal Properties

Latent Heat of Fusion, J/g 410
380
Maximum Temperature: Mechanical, °C 170
210
Melting Completion (Liquidus), °C 650
630
Melting Onset (Solidus), °C 580
530
Specific Heat Capacity, J/kg-K 900
880
Thermal Conductivity, W/m-K 160
150
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
39
Electrical Conductivity: Equal Weight (Specific), % IACS 140
120

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.9
Embodied Carbon, kg CO2/kg material 8.3
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1170
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 43
38
Resilience: Unit (Modulus of Resilience), kJ/m3 52 to 710
620
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
47
Strength to Weight: Axial, points 14 to 35
34
Strength to Weight: Bending, points 21 to 40
38
Thermal Diffusivity, mm2/s 67
59
Thermal Shock Resistance, points 6.0 to 15
16

Alloy Composition

Aluminum (Al), % 95.2 to 98.3
92.4 to 94.7
Chromium (Cr), % 0 to 0.25
0
Copper (Cu), % 0 to 0.1
0 to 0.050
Iron (Fe), % 0 to 0.5
0 to 0.1
Magnesium (Mg), % 0.6 to 1.2
0.7 to 1.4
Manganese (Mn), % 0.4 to 1.0
0 to 0.050
Silicon (Si), % 0.7 to 1.3
0 to 0.1
Titanium (Ti), % 0 to 0.1
0 to 0.050
Zinc (Zn), % 0 to 0.2
4.5 to 5.5
Zirconium (Zr), % 0
0.12 to 0.25
Residuals, % 0
0 to 0.15