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356.0 Aluminum vs. 6081 Aluminum

Both 356.0 aluminum and 6081 aluminum are aluminum alloys. 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 (3, in this case) are not shown.

For each property being compared, the top bar is 356.0 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, % 2.0 to 3.8
9.0
Fatigue Strength, MPa 55 to 75
110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Shear Strength, MPa 140 to 190
180
Tensile Strength: Ultimate (UTS), MPa 160 to 240
310
Tensile Strength: Yield (Proof), MPa 100 to 190
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 570
610
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 150 to 170
180
Thermal Expansion, µm/m-K 21
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40 to 43
47
Electrical Conductivity: Equal Weight (Specific), % IACS 140 to 150
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 3.2 to 8.2
27
Resilience: Unit (Modulus of Resilience), kJ/m3 70 to 250
540
Stiffness to Weight: Axial, points 15
14
Stiffness to Weight: Bending, points 53
50
Strength to Weight: Axial, points 17 to 26
32
Strength to Weight: Bending, points 25 to 33
37
Thermal Diffusivity, mm2/s 64 to 71
74
Thermal Shock Resistance, points 7.6 to 11
14

Alloy Composition

Aluminum (Al), % 90.1 to 93.3
96.3 to 98.6
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0 to 0.25
0 to 0.1
Iron (Fe), % 0 to 0.6
0 to 0.5
Magnesium (Mg), % 0.2 to 0.45
0.6 to 1.0
Manganese (Mn), % 0 to 0.35
0.1 to 0.45
Silicon (Si), % 6.5 to 7.5
0.7 to 1.1
Titanium (Ti), % 0 to 0.25
0 to 0.15
Zinc (Zn), % 0 to 0.35
0 to 0.2
Residuals, % 0
0 to 0.15