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6081 Aluminum vs. 242.0 Aluminum

Both 6081 aluminum and 242.0 aluminum are aluminum alloys. They have a moderately high 93% 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 6081 aluminum and the bottom bar is 242.0 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
73
Elongation at Break, % 9.0
0.5 to 1.5
Fatigue Strength, MPa 110
55 to 110
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
27
Shear Strength, MPa 180
150 to 240
Tensile Strength: Ultimate (UTS), MPa 310
180 to 290
Tensile Strength: Yield (Proof), MPa 270
120 to 220

Thermal Properties

Latent Heat of Fusion, J/g 410
390
Maximum Temperature: Mechanical, °C 160
210
Melting Completion (Liquidus), °C 640
640
Melting Onset (Solidus), °C 610
530
Specific Heat Capacity, J/kg-K 900
870
Thermal Conductivity, W/m-K 180
130 to 170
Thermal Expansion, µm/m-K 23
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
33 to 44
Electrical Conductivity: Equal Weight (Specific), % IACS 160
96 to 130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
12
Density, g/cm3 2.7
3.1
Embodied Carbon, kg CO2/kg material 8.3
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
1.3 to 3.4
Resilience: Unit (Modulus of Resilience), kJ/m3 540
110 to 340
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 50
45
Strength to Weight: Axial, points 32
16 to 26
Strength to Weight: Bending, points 37
23 to 32
Thermal Diffusivity, mm2/s 74
50 to 62
Thermal Shock Resistance, points 14
8.0 to 13

Alloy Composition

Aluminum (Al), % 96.3 to 98.6
88.4 to 93.6
Chromium (Cr), % 0 to 0.1
0 to 0.25
Copper (Cu), % 0 to 0.1
3.5 to 4.5
Iron (Fe), % 0 to 0.5
0 to 1.0
Magnesium (Mg), % 0.6 to 1.0
1.2 to 1.8
Manganese (Mn), % 0.1 to 0.45
0 to 0.35
Nickel (Ni), % 0
1.7 to 2.3
Silicon (Si), % 0.7 to 1.1
0 to 0.7
Titanium (Ti), % 0 to 0.15
0 to 0.25
Zinc (Zn), % 0 to 0.2
0 to 0.35
Residuals, % 0
0 to 0.15