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2007 Aluminum vs. CC491K Bronze

2007 aluminum belongs to the aluminum alloys classification, while CC491K bronze belongs to the copper alloys. There are 28 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 2007 aluminum and the bottom bar is CC491K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 5.6 to 8.0
13
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
40
Tensile Strength: Ultimate (UTS), MPa 370 to 420
260
Tensile Strength: Yield (Proof), MPa 240 to 270
120

Thermal Properties

Latent Heat of Fusion, J/g 390
190
Maximum Temperature: Mechanical, °C 190
160
Melting Completion (Liquidus), °C 640
980
Melting Onset (Solidus), °C 510
900
Specific Heat Capacity, J/kg-K 870
370
Thermal Conductivity, W/m-K 130
71
Thermal Expansion, µm/m-K 23
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 47
15
Electrical Conductivity: Equal Weight (Specific), % IACS 140
15

Otherwise Unclassified Properties

Base Metal Price, % relative 11
31
Density, g/cm3 3.1
8.9
Embodied Carbon, kg CO2/kg material 8.0
3.1
Embodied Energy, MJ/kg 150
51
Embodied Water, L/kg 1130
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 21 to 26
27
Resilience: Unit (Modulus of Resilience), kJ/m3 390 to 530
67
Stiffness to Weight: Axial, points 13
6.7
Stiffness to Weight: Bending, points 44
18
Strength to Weight: Axial, points 33 to 38
8.1
Strength to Weight: Bending, points 37 to 40
10
Thermal Diffusivity, mm2/s 48
22
Thermal Shock Resistance, points 16 to 19
9.3

Alloy Composition

Aluminum (Al), % 87.5 to 95
0 to 0.010
Antimony (Sb), % 0
0 to 0.25
Bismuth (Bi), % 0 to 0.2
0
Chromium (Cr), % 0 to 0.1
0
Copper (Cu), % 3.3 to 4.6
81 to 87
Iron (Fe), % 0 to 0.8
0 to 0.3
Lead (Pb), % 0.8 to 1.5
4.0 to 6.0
Magnesium (Mg), % 0.4 to 1.8
0
Manganese (Mn), % 0.5 to 1.0
0
Nickel (Ni), % 0 to 0.2
0 to 2.0
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0 to 0.8
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0 to 0.2
4.0 to 6.0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.8
4.0 to 6.0
Residuals, % 0 to 0.3
0