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357.0 Aluminum vs. 6081 Aluminum

Both 357.0 aluminum and 6081 aluminum are aluminum alloys. Both are furnished in the T6 temper. They have a moderately high 94% 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 357.0 aluminum and the bottom bar is 6081 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
69
Elongation at Break, % 3.4
9.0
Fatigue Strength, MPa 76
110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 200
180
Tensile Strength: Ultimate (UTS), MPa 350
310
Tensile Strength: Yield (Proof), MPa 300
270

Thermal Properties

Latent Heat of Fusion, J/g 500
410
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 620
640
Melting Onset (Solidus), °C 560
610
Specific Heat Capacity, J/kg-K 910
900
Thermal Conductivity, W/m-K 150
180
Thermal Expansion, µm/m-K 21
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
47
Electrical Conductivity: Equal Weight (Specific), % IACS 140
160

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.6
2.7
Embodied Carbon, kg CO2/kg material 8.0
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1110
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 11
27
Resilience: Unit (Modulus of Resilience), kJ/m3 620
540
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
50
Strength to Weight: Axial, points 38
32
Strength to Weight: Bending, points 43
37
Thermal Diffusivity, mm2/s 64
74
Thermal Shock Resistance, points 17
14

Alloy Composition

Aluminum (Al), % 91.3 to 93.1
96.3 to 98.6
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.050
0 to 0.1
Iron (Fe), % 0 to 0.15
0 to 0.5
Magnesium (Mg), % 0.45 to 0.6
0.6 to 1.0
Manganese (Mn), % 0 to 0.030
0.1 to 0.45
Silicon (Si), % 6.5 to 7.5
0.7 to 1.1
Titanium (Ti), % 0 to 0.2
0 to 0.15
Zinc (Zn), % 0 to 0.050
0 to 0.2
Residuals, % 0
0 to 0.15