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7003 Aluminum vs. C67400 Bronze

7003 aluminum belongs to the aluminum alloys classification, while C67400 bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 7003 aluminum and the bottom bar is C67400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 11
22 to 28
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 26
41
Shear Strength, MPa 210 to 230
310 to 350
Tensile Strength: Ultimate (UTS), MPa 350 to 390
480 to 610
Tensile Strength: Yield (Proof), MPa 300 to 310
250 to 370

Thermal Properties

Latent Heat of Fusion, J/g 380
190
Maximum Temperature: Mechanical, °C 200
130
Melting Completion (Liquidus), °C 630
890
Melting Onset (Solidus), °C 510
870
Specific Heat Capacity, J/kg-K 870
400
Thermal Conductivity, W/m-K 150
100
Thermal Expansion, µm/m-K 24
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 36
23
Electrical Conductivity: Equal Weight (Specific), % IACS 110
26

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
23
Density, g/cm3 2.9
7.9
Embodied Carbon, kg CO2/kg material 8.1
2.8
Embodied Energy, MJ/kg 150
48
Embodied Water, L/kg 1140
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 37 to 41
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 630 to 710
300 to 660
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 47
20
Strength to Weight: Axial, points 33 to 37
17 to 22
Strength to Weight: Bending, points 37 to 40
17 to 20
Thermal Diffusivity, mm2/s 59
32
Thermal Shock Resistance, points 15 to 17
16 to 20

Alloy Composition

Aluminum (Al), % 90.6 to 94.5
0.5 to 2.0
Chromium (Cr), % 0 to 0.2
0
Copper (Cu), % 0 to 0.2
57 to 60
Iron (Fe), % 0 to 0.35
0 to 0.35
Lead (Pb), % 0
0 to 0.5
Magnesium (Mg), % 0.5 to 1.0
0
Manganese (Mn), % 0 to 0.3
2.0 to 3.5
Nickel (Ni), % 0
0 to 0.25
Silicon (Si), % 0 to 0.3
0.5 to 1.5
Tin (Sn), % 0
0 to 0.3
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 5.0 to 6.5
31.1 to 40
Zirconium (Zr), % 0.050 to 0.25
0
Residuals, % 0
0 to 0.5