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3105 Aluminum vs. CC491K Bronze

3105 aluminum belongs to the aluminum alloys classification, while CC491K bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is 3105 aluminum and the bottom bar is CC491K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 29 to 67
73
Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 1.1 to 20
13
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 120 to 240
260
Tensile Strength: Yield (Proof), MPa 46 to 220
120

Thermal Properties

Latent Heat of Fusion, J/g 400
190
Maximum Temperature: Mechanical, °C 180
160
Melting Completion (Liquidus), °C 660
980
Melting Onset (Solidus), °C 640
900
Specific Heat Capacity, J/kg-K 900
370
Thermal Conductivity, W/m-K 170
71
Thermal Expansion, µm/m-K 24
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 44
15
Electrical Conductivity: Equal Weight (Specific), % IACS 140
15

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
31
Density, g/cm3 2.8
8.9
Embodied Carbon, kg CO2/kg material 8.2
3.1
Embodied Energy, MJ/kg 150
51
Embodied Water, L/kg 1180
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.6 to 19
27
Resilience: Unit (Modulus of Resilience), kJ/m3 15 to 340
67
Stiffness to Weight: Axial, points 14
6.7
Stiffness to Weight: Bending, points 50
18
Strength to Weight: Axial, points 12 to 24
8.1
Strength to Weight: Bending, points 20 to 31
10
Thermal Diffusivity, mm2/s 68
22
Thermal Shock Resistance, points 5.2 to 11
9.3

Alloy Composition

Aluminum (Al), % 96 to 99.5
0 to 0.010
Antimony (Sb), % 0
0 to 0.25
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.3
81 to 87
Iron (Fe), % 0 to 0.7
0 to 0.3
Lead (Pb), % 0
4.0 to 6.0
Magnesium (Mg), % 0.2 to 0.8
0
Manganese (Mn), % 0.3 to 0.8
0
Nickel (Ni), % 0
0 to 2.0
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0 to 0.6
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0
4.0 to 6.0
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.4
4.0 to 6.0
Residuals, % 0 to 0.15
0