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3105 Aluminum vs. 6063A Aluminum

Both 3105 aluminum and 6063A 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 3105 aluminum and the bottom bar is 6063A aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
68
Elongation at Break, % 1.1 to 20
6.7 to 18
Fatigue Strength, MPa 39 to 95
53 to 80
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
26
Shear Strength, MPa 77 to 140
78 to 150
Tensile Strength: Ultimate (UTS), MPa 120 to 240
130 to 260
Tensile Strength: Yield (Proof), MPa 46 to 220
55 to 200

Thermal Properties

Latent Heat of Fusion, J/g 400
400
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 660
640
Melting Onset (Solidus), °C 640
620
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 170
200
Thermal Expansion, µm/m-K 24
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
49 to 54
Electrical Conductivity: Equal Weight (Specific), % IACS 140
160 to 180

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.8
2.7
Embodied Carbon, kg CO2/kg material 8.2
8.3
Embodied Energy, MJ/kg 150
150
Embodied Water, L/kg 1180
1190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
13 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
22 to 280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 50
50
Strength to Weight: Axial, points 12 to 24
13 to 26
Strength to Weight: Bending, points 20 to 31
21 to 33
Thermal Diffusivity, mm2/s 68
83
Thermal Shock Resistance, points 5.2 to 11
5.6 to 11

Alloy Composition

Aluminum (Al), % 96 to 99.5
97.5 to 99
Chromium (Cr), % 0 to 0.2
0 to 0.050
Copper (Cu), % 0 to 0.3
0 to 0.1
Iron (Fe), % 0 to 0.7
0.15 to 0.35
Magnesium (Mg), % 0.2 to 0.8
0.6 to 0.9
Manganese (Mn), % 0.3 to 0.8
0 to 0.15
Silicon (Si), % 0 to 0.6
0.3 to 0.6
Titanium (Ti), % 0 to 0.1
0 to 0.1
Zinc (Zn), % 0 to 0.4
0 to 0.15
Residuals, % 0
0 to 0.15

Comparable Variants