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6081 Aluminum vs. 3004 Aluminum

Both 6081 aluminum and 3004 aluminum are aluminum alloys. They have a very high 99% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is 6081 aluminum and the bottom bar is 3004 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
70
Elongation at Break, % 9.0
1.1 to 19
Fatigue Strength, MPa 110
55 to 120
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 180
100 to 180
Tensile Strength: Ultimate (UTS), MPa 310
170 to 310
Tensile Strength: Yield (Proof), MPa 270
68 to 270

Thermal Properties

Latent Heat of Fusion, J/g 410
400
Maximum Temperature: Mechanical, °C 160
180
Melting Completion (Liquidus), °C 640
650
Melting Onset (Solidus), °C 610
630
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 180
160
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
42
Electrical Conductivity: Equal Weight (Specific), % IACS 160
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.7
2.8
Embodied Carbon, kg CO2/kg material 8.3
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 27
3.2 to 27
Resilience: Unit (Modulus of Resilience), kJ/m3 540
33 to 540
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 32
18 to 31
Strength to Weight: Bending, points 37
25 to 37
Thermal Diffusivity, mm2/s 74
65
Thermal Shock Resistance, points 14
7.6 to 13

Alloy Composition

Aluminum (Al), % 96.3 to 98.6
95.6 to 98.2
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 0 to 0.1
0 to 0.25
Iron (Fe), % 0 to 0.5
0 to 0.7
Magnesium (Mg), % 0.6 to 1.0
0.8 to 1.3
Manganese (Mn), % 0.1 to 0.45
1.0 to 1.5
Silicon (Si), % 0.7 to 1.1
0 to 0.3
Titanium (Ti), % 0 to 0.15
0
Zinc (Zn), % 0 to 0.2
0 to 0.25
Residuals, % 0
0 to 0.15