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7108A Aluminum vs. 6008 Aluminum

Both 7108A aluminum and 6008 aluminum are aluminum alloys. They have a moderately high 94% of their average alloy composition in common.

For each property being compared, the top bar is 7108A aluminum and the bottom bar is 6008 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
69
Elongation at Break, % 11 to 13
9.1 to 17
Fatigue Strength, MPa 120 to 130
55 to 88
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 210
120 to 170
Tensile Strength: Ultimate (UTS), MPa 350
200 to 290
Tensile Strength: Yield (Proof), MPa 290 to 300
100 to 220

Thermal Properties

Latent Heat of Fusion, J/g 380
410
Maximum Temperature: Mechanical, °C 210
180
Melting Completion (Liquidus), °C 630
640
Melting Onset (Solidus), °C 520
620
Specific Heat Capacity, J/kg-K 870
900
Thermal Conductivity, W/m-K 150
190
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
49
Electrical Conductivity: Equal Weight (Specific), % IACS 110
160

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 2.9
2.7
Embodied Carbon, kg CO2/kg material 8.3
8.5
Embodied Energy, MJ/kg 150
160
Embodied Water, L/kg 1150
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 44
24 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 640
76 to 360
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 47
50
Strength to Weight: Axial, points 33 to 34
21 to 29
Strength to Weight: Bending, points 38
28 to 35
Thermal Diffusivity, mm2/s 59
77
Thermal Shock Resistance, points 15 to 16
9.0 to 13

Alloy Composition


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Aluminum (Al), % 91.6 to 94.4
96.5 to 99.1
Chromium (Cr), % 0 to 0.040
0 to 0.3
Copper (Cu), % 0 to 0.050
0 to 0.3
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0 to 0.35
Magnesium (Mg), % 0.7 to 1.5
0.4 to 0.7
Manganese (Mn), % 0 to 0.050
0 to 0.3
Silicon (Si), % 0 to 0.2
0.5 to 0.9
Titanium (Ti), % 0 to 0.030
0 to 0.1
Vanadium (V), % 0
0.050 to 0.2
Zinc (Zn), % 4.8 to 5.8
0 to 0.2
Zirconium (Zr), % 0.15 to 0.25
0
Residuals, % 0 to 0.15
0 to 0.15

Comparable Variants