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7049A Aluminum vs. C61800 Bronze

7049A aluminum belongs to the aluminum alloys classification, while C61800 bronze belongs to the copper alloys. There are 30 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 7049A aluminum and the bottom bar is C61800 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
110
Elongation at Break, % 5.0 to 5.7
26
Fatigue Strength, MPa 180
190
Poisson's Ratio 0.32
0.34
Shear Modulus, GPa 27
44
Shear Strength, MPa 340 to 350
310
Tensile Strength: Ultimate (UTS), MPa 580 to 590
740
Tensile Strength: Yield (Proof), MPa 500 to 530
310

Thermal Properties

Latent Heat of Fusion, J/g 370
230
Maximum Temperature: Mechanical, °C 200
220
Melting Completion (Liquidus), °C 640
1050
Melting Onset (Solidus), °C 430
1040
Specific Heat Capacity, J/kg-K 850
440
Thermal Conductivity, W/m-K 130
64
Thermal Expansion, µm/m-K 24
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
13
Electrical Conductivity: Equal Weight (Specific), % IACS 120
14

Otherwise Unclassified Properties

Base Metal Price, % relative 10
28
Density, g/cm3 3.1
8.3
Embodied Carbon, kg CO2/kg material 8.2
3.1
Embodied Energy, MJ/kg 150
52
Embodied Water, L/kg 1100
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 28 to 32
150
Resilience: Unit (Modulus of Resilience), kJ/m3 1800 to 1990
420
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 44
19
Strength to Weight: Axial, points 52 to 53
25
Strength to Weight: Bending, points 50 to 51
22
Thermal Diffusivity, mm2/s 50
18
Thermal Shock Resistance, points 25
26

Alloy Composition


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Aluminum (Al), % 84.6 to 89.5
8.5 to 11
Chromium (Cr), % 0.050 to 0.25
0
Copper (Cu), % 1.2 to 1.9
86.9 to 91
Iron (Fe), % 0 to 0.5
0.5 to 1.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 2.1 to 3.1
0
Manganese (Mn), % 0 to 0.5
0
Silicon (Si), % 0 to 0.4
0 to 0.1
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 7.2 to 8.4
0 to 0.020
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0 to 0.5