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8090 Aluminum vs. 3102 Aluminum

Both 8090 aluminum and 3102 aluminum are aluminum alloys. They have a very high 96% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 8090 aluminum and the bottom bar is 3102 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 67
69
Elongation at Break, % 3.5 to 13
23 to 28
Fatigue Strength, MPa 91 to 140
31 to 34
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 25
26
Tensile Strength: Ultimate (UTS), MPa 340 to 490
92 to 100
Tensile Strength: Yield (Proof), MPa 210 to 420
28 to 34

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 190
180
Melting Completion (Liquidus), °C 660
640
Melting Onset (Solidus), °C 600
640
Specific Heat Capacity, J/kg-K 960
900
Thermal Conductivity, W/m-K 95 to 160
230
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 20
56
Electrical Conductivity: Equal Weight (Specific), % IACS 66
190

Otherwise Unclassified Properties

Base Metal Price, % relative 18
9.0
Density, g/cm3 2.7
2.7
Embodied Carbon, kg CO2/kg material 8.6
8.2
Embodied Energy, MJ/kg 170
150
Embodied Water, L/kg 1160
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16 to 41
16 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 340 to 1330
5.8 to 8.3
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 34 to 49
9.4 to 10
Strength to Weight: Bending, points 39 to 50
17 to 18
Thermal Diffusivity, mm2/s 36 to 60
92
Thermal Shock Resistance, points 15 to 22
4.1 to 4.4

Alloy Composition

Aluminum (Al), % 93 to 98.4
97.9 to 99.95
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 1.0 to 1.6
0 to 0.1
Iron (Fe), % 0 to 0.3
0 to 0.7
Lithium (Li), % 2.2 to 2.7
0
Magnesium (Mg), % 0.6 to 1.3
0
Manganese (Mn), % 0 to 0.1
0.050 to 0.4
Silicon (Si), % 0 to 0.2
0 to 0.4
Titanium (Ti), % 0 to 0.1
0 to 0.1
Zinc (Zn), % 0 to 0.25
0 to 0.3
Zirconium (Zr), % 0.040 to 0.16
0
Residuals, % 0
0 to 0.15