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7108A Aluminum vs. CC493K Bronze

7108A aluminum belongs to the aluminum alloys classification, while CC493K 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 7108A aluminum and the bottom bar is CC493K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
100
Elongation at Break, % 11 to 13
14
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
39
Tensile Strength: Ultimate (UTS), MPa 350
270
Tensile Strength: Yield (Proof), MPa 290 to 300
140

Thermal Properties

Latent Heat of Fusion, J/g 380
180
Maximum Temperature: Mechanical, °C 210
160
Melting Completion (Liquidus), °C 630
960
Melting Onset (Solidus), °C 520
880
Specific Heat Capacity, J/kg-K 870
360
Thermal Conductivity, W/m-K 150
61
Thermal Expansion, µm/m-K 24
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
12
Electrical Conductivity: Equal Weight (Specific), % IACS 110
12

Otherwise Unclassified Properties

Base Metal Price, % relative 10
32
Density, g/cm3 2.9
8.9
Embodied Carbon, kg CO2/kg material 8.3
3.3
Embodied Energy, MJ/kg 150
53
Embodied Water, L/kg 1150
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 44
33
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 640
89
Stiffness to Weight: Axial, points 13
6.5
Stiffness to Weight: Bending, points 47
18
Strength to Weight: Axial, points 33 to 34
8.6
Strength to Weight: Bending, points 38
11
Thermal Diffusivity, mm2/s 59
19
Thermal Shock Resistance, points 15 to 16
10

Alloy Composition

Aluminum (Al), % 91.6 to 94.4
0 to 0.010
Antimony (Sb), % 0
0 to 0.3
Chromium (Cr), % 0 to 0.040
0
Copper (Cu), % 0 to 0.050
79 to 86
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
0 to 0.2
Lead (Pb), % 0
5.0 to 8.0
Magnesium (Mg), % 0.7 to 1.5
0
Manganese (Mn), % 0 to 0.050
0
Nickel (Ni), % 0
0 to 2.0
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0 to 0.2
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0
5.2 to 8.0
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 4.8 to 5.8
2.0 to 5.0
Zirconium (Zr), % 0.15 to 0.25
0
Residuals, % 0 to 0.15
0