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5182 Aluminum vs. 6081 Aluminum

Both 5182 aluminum and 6081 aluminum are aluminum alloys. They have a very high 96% of their average alloy composition in common.

For each property being compared, the top bar is 5182 aluminum and the bottom bar is 6081 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 68
69
Elongation at Break, % 1.1 to 12
9.0
Fatigue Strength, MPa 100 to 130
110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 25
26
Shear Strength, MPa 170 to 240
180
Tensile Strength: Ultimate (UTS), MPa 280 to 420
310
Tensile Strength: Yield (Proof), MPa 130 to 360
270

Thermal Properties

Latent Heat of Fusion, J/g 390
410
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 590
610
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 130
180
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
47
Electrical Conductivity: Equal Weight (Specific), % IACS 94
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 8.9
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 49
27
Resilience: Unit (Modulus of Resilience), kJ/m3 120 to 950
540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 51
50
Strength to Weight: Axial, points 29 to 44
32
Strength to Weight: Bending, points 36 to 47
37
Thermal Diffusivity, mm2/s 53
74
Thermal Shock Resistance, points 12 to 19
14

Alloy Composition

Aluminum (Al), % 93.2 to 95.8
96.3 to 98.6
Chromium (Cr), % 0 to 0.1
0 to 0.1
Copper (Cu), % 0 to 0.15
0 to 0.1
Iron (Fe), % 0 to 0.35
0 to 0.5
Magnesium (Mg), % 4.0 to 5.0
0.6 to 1.0
Manganese (Mn), % 0.2 to 0.5
0.1 to 0.45
Silicon (Si), % 0 to 0.2
0.7 to 1.1
Titanium (Ti), % 0 to 0.1
0 to 0.15
Zinc (Zn), % 0 to 0.25
0 to 0.2
Residuals, % 0 to 0.15
0 to 0.15