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6106 Aluminum vs. 3105 Aluminum

Both 6106 aluminum and 3105 aluminum are aluminum alloys. Their average alloy composition is basically identical. 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 6106 aluminum and the bottom bar is 3105 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
69
Elongation at Break, % 9.1
1.1 to 20
Fatigue Strength, MPa 88
39 to 95
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 170
77 to 140
Tensile Strength: Ultimate (UTS), MPa 290
120 to 240
Tensile Strength: Yield (Proof), MPa 220
46 to 220

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 160
180
Melting Completion (Liquidus), °C 660
660
Melting Onset (Solidus), °C 610
640
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 190
170
Thermal Expansion, µm/m-K 23
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 49
44
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
8.2
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1190
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 24
2.6 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 370
15 to 340
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 29
12 to 24
Strength to Weight: Bending, points 35
20 to 31
Thermal Diffusivity, mm2/s 78
68
Thermal Shock Resistance, points 13
5.2 to 11

Alloy Composition

Aluminum (Al), % 97.2 to 99.3
96 to 99.5
Chromium (Cr), % 0 to 0.2
0 to 0.2
Copper (Cu), % 0 to 0.25
0 to 0.3
Iron (Fe), % 0 to 0.35
0 to 0.7
Magnesium (Mg), % 0.4 to 0.8
0.2 to 0.8
Manganese (Mn), % 0.050 to 0.2
0.3 to 0.8
Silicon (Si), % 0.3 to 0.6
0 to 0.6
Titanium (Ti), % 0 to 0.1
0 to 0.1
Zinc (Zn), % 0 to 0.15
0 to 0.4
Residuals, % 0
0 to 0.15