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4047 Aluminum vs. 3105 Aluminum

Both 4047 aluminum and 3105 aluminum are aluminum alloys. They have 88% 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 4047 aluminum and the bottom bar is 3105 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
69
Elongation at Break, % 3.4
1.1 to 20
Fatigue Strength, MPa 45
39 to 95
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 27
26
Shear Strength, MPa 69
77 to 140
Tensile Strength: Ultimate (UTS), MPa 120
120 to 240
Tensile Strength: Yield (Proof), MPa 64
46 to 220

Thermal Properties

Latent Heat of Fusion, J/g 570
400
Maximum Temperature: Mechanical, °C 160
180
Melting Completion (Liquidus), °C 580
660
Melting Onset (Solidus), °C 580
640
Specific Heat Capacity, J/kg-K 900
900
Thermal Conductivity, W/m-K 130
170
Thermal Expansion, µm/m-K 21
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
44
Electrical Conductivity: Equal Weight (Specific), % IACS 120
140

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
9.5
Density, g/cm3 2.5
2.8
Embodied Carbon, kg CO2/kg material 7.7
8.2
Embodied Energy, MJ/kg 140
150
Embodied Water, L/kg 1050
1180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.5
2.6 to 19
Resilience: Unit (Modulus of Resilience), kJ/m3 28
15 to 340
Stiffness to Weight: Axial, points 16
14
Stiffness to Weight: Bending, points 55
50
Strength to Weight: Axial, points 13
12 to 24
Strength to Weight: Bending, points 21
20 to 31
Thermal Diffusivity, mm2/s 59
68
Thermal Shock Resistance, points 5.6
5.2 to 11

Alloy Composition

Aluminum (Al), % 85.3 to 89
96 to 99.5
Chromium (Cr), % 0
0 to 0.2
Copper (Cu), % 0 to 0.3
0 to 0.3
Iron (Fe), % 0 to 0.8
0 to 0.7
Magnesium (Mg), % 0 to 0.1
0.2 to 0.8
Manganese (Mn), % 0 to 0.15
0.3 to 0.8
Silicon (Si), % 11 to 13
0 to 0.6
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0 to 0.2
0 to 0.4
Residuals, % 0
0 to 0.15