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7108A Aluminum vs. C61900 Bronze

7108A aluminum belongs to the aluminum alloys classification, while C61900 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (1, 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 C61900 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 69
110
Elongation at Break, % 11 to 13
21 to 32
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
43
Shear Strength, MPa 210
370 to 410
Tensile Strength: Ultimate (UTS), MPa 350
570 to 650
Tensile Strength: Yield (Proof), MPa 290 to 300
230 to 310

Thermal Properties

Latent Heat of Fusion, J/g 380
230
Maximum Temperature: Mechanical, °C 210
220
Melting Completion (Liquidus), °C 630
1050
Melting Onset (Solidus), °C 520
1040
Specific Heat Capacity, J/kg-K 870
440
Thermal Conductivity, W/m-K 150
79
Thermal Expansion, µm/m-K 24
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
11
Electrical Conductivity: Equal Weight (Specific), % IACS 110
11

Otherwise Unclassified Properties

Base Metal Price, % relative 10
28
Density, g/cm3 2.9
8.3
Embodied Carbon, kg CO2/kg material 8.3
3.1
Embodied Energy, MJ/kg 150
51
Embodied Water, L/kg 1150
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 38 to 44
110 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 610 to 640
230 to 430
Stiffness to Weight: Axial, points 13
7.6
Stiffness to Weight: Bending, points 47
19
Strength to Weight: Axial, points 33 to 34
19 to 22
Strength to Weight: Bending, points 38
18 to 20
Thermal Diffusivity, mm2/s 59
22
Thermal Shock Resistance, points 15 to 16
20 to 23

Alloy Composition

Aluminum (Al), % 91.6 to 94.4
8.5 to 10
Chromium (Cr), % 0 to 0.040
0
Copper (Cu), % 0 to 0.050
83.6 to 88.5
Gallium (Ga), % 0 to 0.030
0
Iron (Fe), % 0 to 0.3
3.0 to 4.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 0.7 to 1.5
0
Manganese (Mn), % 0 to 0.050
0
Silicon (Si), % 0 to 0.2
0
Tin (Sn), % 0
0 to 0.6
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 4.8 to 5.8
0 to 0.8
Zirconium (Zr), % 0.15 to 0.25
0
Residuals, % 0
0 to 0.5