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6081 Aluminum vs. 238.0 Aluminum

Both 6081 aluminum and 238.0 aluminum are aluminum alloys. They have 85% of their average alloy composition in common. There are 29 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 6081 aluminum and the bottom bar is 238.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
76
Elongation at Break, % 9.0
1.5
Fatigue Strength, MPa 110
110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
28
Tensile Strength: Ultimate (UTS), MPa 310
210
Tensile Strength: Yield (Proof), MPa 270
170

Thermal Properties

Latent Heat of Fusion, J/g 410
430
Maximum Temperature: Mechanical, °C 160
170
Melting Completion (Liquidus), °C 640
600
Melting Onset (Solidus), °C 610
510
Specific Heat Capacity, J/kg-K 900
840
Thermal Conductivity, W/m-K 180
100
Thermal Expansion, µm/m-K 23
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
25
Electrical Conductivity: Equal Weight (Specific), % IACS 160
67

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
3.4
Embodied Carbon, kg CO2/kg material 8.3
7.4
Embodied Energy, MJ/kg 150
140
Embodied Water, L/kg 1180
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
2.9
Resilience: Unit (Modulus of Resilience), kJ/m3 540
180
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 50
42
Strength to Weight: Axial, points 32
17
Strength to Weight: Bending, points 37
23
Thermal Diffusivity, mm2/s 74
37
Thermal Shock Resistance, points 14
9.1

Alloy Composition

Aluminum (Al), % 96.3 to 98.6
81.9 to 84.9
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
9.5 to 10.5
Iron (Fe), % 0 to 0.5
1.0 to 1.5
Magnesium (Mg), % 0.6 to 1.0
0 to 0.25
Manganese (Mn), % 0.1 to 0.45
0
Silicon (Si), % 0.7 to 1.1
3.6 to 4.4
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.2
1.0 to 1.5
Residuals, % 0 to 0.15
0