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4004 Aluminum vs. C61800 Bronze

4004 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 (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 4004 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, % 2.4
26
Fatigue Strength, MPa 42
190
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
44
Shear Strength, MPa 63
310
Tensile Strength: Ultimate (UTS), MPa 110
740
Tensile Strength: Yield (Proof), MPa 60
310

Thermal Properties

Latent Heat of Fusion, J/g 540
230
Maximum Temperature: Mechanical, °C 160
220
Melting Completion (Liquidus), °C 600
1050
Melting Onset (Solidus), °C 560
1040
Specific Heat Capacity, J/kg-K 910
440
Thermal Conductivity, W/m-K 130
64
Thermal Expansion, µm/m-K 22
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 33
13
Electrical Conductivity: Equal Weight (Specific), % IACS 120
14

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
28
Density, g/cm3 2.6
8.3
Embodied Carbon, kg CO2/kg material 8.0
3.1
Embodied Energy, MJ/kg 150
52
Embodied Water, L/kg 1070
390

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.3
150
Resilience: Unit (Modulus of Resilience), kJ/m3 25
420
Stiffness to Weight: Axial, points 15
7.5
Stiffness to Weight: Bending, points 54
19
Strength to Weight: Axial, points 12
25
Strength to Weight: Bending, points 20
22
Thermal Diffusivity, mm2/s 58
18
Thermal Shock Resistance, points 5.1
26

Alloy Composition

Aluminum (Al), % 86 to 90
8.5 to 11
Copper (Cu), % 0 to 0.25
86.9 to 91
Iron (Fe), % 0 to 0.8
0.5 to 1.5
Lead (Pb), % 0
0 to 0.020
Magnesium (Mg), % 1.0 to 2.0
0
Manganese (Mn), % 0 to 0.1
0
Silicon (Si), % 9.0 to 10.5
0 to 0.1
Zinc (Zn), % 0 to 0.2
0 to 0.020
Residuals, % 0
0 to 0.5