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1100A Aluminum vs. 6081 Aluminum

Both 1100A aluminum and 6081 aluminum are aluminum alloys. They have a very high 99% of their average alloy composition in common.

For each property being compared, the top bar is 1100A aluminum and the bottom bar is 6081 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
69
Elongation at Break, % 4.5 to 34
9.0
Fatigue Strength, MPa 35 to 74
110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 59 to 99
180
Tensile Strength: Ultimate (UTS), MPa 89 to 170
310
Tensile Strength: Yield (Proof), MPa 29 to 150
270

Thermal Properties

Latent Heat of Fusion, J/g 400
410
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 640
610
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 230
180
Thermal Expansion, µm/m-K 23
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
47
Electrical Conductivity: Equal Weight (Specific), % IACS 200
160

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.7
Embodied Carbon, kg CO2/kg material 8.2
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1190
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.4 to 23
27
Resilience: Unit (Modulus of Resilience), kJ/m3 5.9 to 150
540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 9.1 to 17
32
Strength to Weight: Bending, points 16 to 25
37
Thermal Diffusivity, mm2/s 93
74
Thermal Shock Resistance, points 4.0 to 7.6
14

Alloy Composition

Aluminum (Al), % 99 to 100
96.3 to 98.6
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 0.050 to 0.2
0 to 0.1
Iron (Fe), % 0 to 1.0
0 to 0.5
Magnesium (Mg), % 0 to 0.1
0.6 to 1.0
Manganese (Mn), % 0 to 0.050
0.1 to 0.45
Silicon (Si), % 0 to 1.0
0.7 to 1.1
Titanium (Ti), % 0 to 0.1
0 to 0.15
Zinc (Zn), % 0 to 0.1
0 to 0.2
Residuals, % 0
0 to 0.15