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707.0 Aluminum vs. C67400 Bronze

707.0 aluminum belongs to the aluminum alloys classification, while C67400 bronze belongs to the copper alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 707.0 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, % 1.7 to 3.4
22 to 28
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
41
Tensile Strength: Ultimate (UTS), MPa 270 to 300
480 to 610
Tensile Strength: Yield (Proof), MPa 170 to 250
250 to 370

Thermal Properties

Latent Heat of Fusion, J/g 380
190
Maximum Temperature: Mechanical, °C 180
130
Melting Completion (Liquidus), °C 630
890
Melting Onset (Solidus), °C 600
870
Specific Heat Capacity, J/kg-K 880
400
Thermal Conductivity, W/m-K 150
100
Thermal Expansion, µm/m-K 24
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
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 8.3
2.8
Embodied Energy, MJ/kg 150
48
Embodied Water, L/kg 1140
330

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.3 to 8.6
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 210 to 430
300 to 660
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 47
20
Strength to Weight: Axial, points 26 to 29
17 to 22
Strength to Weight: Bending, points 32 to 34
17 to 20
Thermal Diffusivity, mm2/s 58
32
Thermal Shock Resistance, points 12 to 13
16 to 20

Alloy Composition

Aluminum (Al), % 90.5 to 93.6
0.5 to 2.0
Chromium (Cr), % 0.2 to 0.4
0
Copper (Cu), % 0 to 0.2
57 to 60
Iron (Fe), % 0 to 0.8
0 to 0.35
Lead (Pb), % 0
0 to 0.5
Magnesium (Mg), % 1.8 to 2.4
0
Manganese (Mn), % 0.4 to 0.6
2.0 to 3.5
Nickel (Ni), % 0
0 to 0.25
Silicon (Si), % 0 to 0.2
0.5 to 1.5
Tin (Sn), % 0
0 to 0.3
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 4.0 to 4.5
31.1 to 40
Residuals, % 0
0 to 0.5