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3004 Aluminum vs. C31400 Bronze

3004 aluminum belongs to the aluminum alloys classification, while C31400 bronze belongs to the copper alloys. There are 29 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 3004 aluminum and the bottom bar is C31400 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 1.1 to 19
6.8 to 29
Poisson's Ratio 0.33
0.33
Shear Modulus, GPa 26
42
Shear Strength, MPa 100 to 180
180 to 240
Tensile Strength: Ultimate (UTS), MPa 170 to 310
270 to 420
Tensile Strength: Yield (Proof), MPa 68 to 270
78 to 310

Thermal Properties

Latent Heat of Fusion, J/g 400
200
Maximum Temperature: Mechanical, °C 180
180
Melting Completion (Liquidus), °C 650
1040
Melting Onset (Solidus), °C 630
1010
Specific Heat Capacity, J/kg-K 900
380
Thermal Conductivity, W/m-K 160
180
Thermal Expansion, µm/m-K 24
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 42
42
Electrical Conductivity: Equal Weight (Specific), % IACS 140
43

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
29
Density, g/cm3 2.8
8.8
Embodied Carbon, kg CO2/kg material 8.3
2.6
Embodied Energy, MJ/kg 150
42
Embodied Water, L/kg 1180
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.2 to 27
26 to 59
Resilience: Unit (Modulus of Resilience), kJ/m3 33 to 540
28 to 420
Stiffness to Weight: Axial, points 14
7.1
Stiffness to Weight: Bending, points 50
18
Strength to Weight: Axial, points 18 to 31
8.7 to 13
Strength to Weight: Bending, points 25 to 37
11 to 14
Thermal Diffusivity, mm2/s 65
54
Thermal Shock Resistance, points 7.6 to 13
9.6 to 15

Alloy Composition

Aluminum (Al), % 95.6 to 98.2
0
Copper (Cu), % 0 to 0.25
87.5 to 90.5
Iron (Fe), % 0 to 0.7
0 to 0.1
Lead (Pb), % 0
1.3 to 2.5
Magnesium (Mg), % 0.8 to 1.3
0
Manganese (Mn), % 1.0 to 1.5
0
Nickel (Ni), % 0
0 to 0.7
Silicon (Si), % 0 to 0.3
0
Zinc (Zn), % 0 to 0.25
5.8 to 11.2
Residuals, % 0
0 to 0.4