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7010 Aluminum vs. 7108 Aluminum

Both 7010 aluminum and 7108 aluminum are aluminum alloys. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is 7010 aluminum and the bottom bar is 7108 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
69
Elongation at Break, % 3.9 to 6.8
11
Fatigue Strength, MPa 160 to 190
120
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 300 to 340
210
Tensile Strength: Ultimate (UTS), MPa 520 to 590
350
Tensile Strength: Yield (Proof), MPa 410 to 540
290

Thermal Properties

Latent Heat of Fusion, J/g 380
380
Maximum Temperature: Mechanical, °C 200
210
Melting Completion (Liquidus), °C 630
630
Melting Onset (Solidus), °C 480
530
Specific Heat Capacity, J/kg-K 860
880
Thermal Conductivity, W/m-K 150
150
Thermal Expansion, µm/m-K 24
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
39
Electrical Conductivity: Equal Weight (Specific), % IACS 120
120

Otherwise Unclassified Properties

Base Metal Price, % relative 10
9.5
Density, g/cm3 3.0
2.9
Embodied Carbon, kg CO2/kg material 8.3
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1120
1150

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 22 to 33
38
Resilience: Unit (Modulus of Resilience), kJ/m3 1230 to 2130
620
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 45
47
Strength to Weight: Axial, points 47 to 54
34
Strength to Weight: Bending, points 47 to 52
38
Thermal Diffusivity, mm2/s 58
59
Thermal Shock Resistance, points 22 to 26
16

Alloy Composition

Aluminum (Al), % 87.9 to 90.6
92.4 to 94.7
Chromium (Cr), % 0 to 0.050
0
Copper (Cu), % 1.5 to 2.0
0 to 0.050
Iron (Fe), % 0 to 0.15
0 to 0.1
Magnesium (Mg), % 2.1 to 2.6
0.7 to 1.4
Manganese (Mn), % 0 to 0.1
0 to 0.050
Nickel (Ni), % 0 to 0.050
0
Silicon (Si), % 0 to 0.12
0 to 0.1
Titanium (Ti), % 0 to 0.060
0 to 0.050
Zinc (Zn), % 5.7 to 6.7
4.5 to 5.5
Zirconium (Zr), % 0.1 to 0.16
0.12 to 0.25
Residuals, % 0
0 to 0.15