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5070 Aluminum vs. 3102 Aluminum

Both 5070 aluminum and 3102 aluminum are aluminum alloys. They have a moderately high 95% of their average alloy composition in common.

For each property being compared, the top bar is 5070 aluminum and the bottom bar is 3102 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
69
Elongation at Break, % 20
23 to 28
Fatigue Strength, MPa 150
31 to 34
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 190
58 to 65
Tensile Strength: Ultimate (UTS), MPa 300
92 to 100
Tensile Strength: Yield (Proof), MPa 140
28 to 34

Thermal Properties

Latent Heat of Fusion, J/g 390
400
Maximum Temperature: Mechanical, °C 190
180
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 550
640
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 130
230
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
56
Electrical Conductivity: Equal Weight (Specific), % IACS 100
190

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.0
Density, g/cm3 2.7
2.7
Embodied Carbon, kg CO2/kg material 8.8
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1170
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 51
16 to 22
Resilience: Unit (Modulus of Resilience), kJ/m3 150
5.8 to 8.3
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 31
9.4 to 10
Strength to Weight: Bending, points 37
17 to 18
Thermal Diffusivity, mm2/s 53
92
Thermal Shock Resistance, points 14
4.1 to 4.4

Alloy Composition


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Aluminum (Al), % 92.4 to 95.7
97.9 to 99.95
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 0 to 0.4
0 to 0.7
Magnesium (Mg), % 3.5 to 4.5
0
Manganese (Mn), % 0.4 to 0.8
0.050 to 0.4
Silicon (Si), % 0 to 0.25
0 to 0.4
Titanium (Ti), % 0 to 0.15
0 to 0.1
Zinc (Zn), % 0.4 to 0.8
0 to 0.3
Residuals, % 0 to 0.15
0 to 0.15