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1070A Aluminum vs. CC491K Bronze

1070A aluminum belongs to the aluminum alloys classification, while CC491K 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 1070A aluminum and the bottom bar is CC491K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 18 to 40
73
Elastic (Young's, Tensile) Modulus, GPa 68
110
Elongation at Break, % 2.3 to 33
13
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
40
Tensile Strength: Ultimate (UTS), MPa 68 to 140
260
Tensile Strength: Yield (Proof), MPa 17 to 120
120

Thermal Properties

Latent Heat of Fusion, J/g 400
190
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 640
980
Melting Onset (Solidus), °C 640
900
Specific Heat Capacity, J/kg-K 900
370
Thermal Conductivity, W/m-K 230
71
Thermal Expansion, µm/m-K 23
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 60
15
Electrical Conductivity: Equal Weight (Specific), % IACS 200
15

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
31
Density, g/cm3 2.7
8.9
Embodied Carbon, kg CO2/kg material 8.2
3.1
Embodied Energy, MJ/kg 150
51
Embodied Water, L/kg 1200
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.0 to 18
27
Resilience: Unit (Modulus of Resilience), kJ/m3 2.1 to 100
67
Stiffness to Weight: Axial, points 14
6.7
Stiffness to Weight: Bending, points 50
18
Strength to Weight: Axial, points 7.0 to 14
8.1
Strength to Weight: Bending, points 14 to 22
10
Thermal Diffusivity, mm2/s 94
22
Thermal Shock Resistance, points 3.1 to 6.3
9.3

Alloy Composition

Aluminum (Al), % 99.7 to 100
0 to 0.010
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 0 to 0.030
81 to 87
Iron (Fe), % 0 to 0.25
0 to 0.3
Lead (Pb), % 0
4.0 to 6.0
Magnesium (Mg), % 0 to 0.030
0
Manganese (Mn), % 0 to 0.030
0
Nickel (Ni), % 0
0 to 2.0
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0 to 0.2
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0
4.0 to 6.0
Titanium (Ti), % 0 to 0.030
0
Zinc (Zn), % 0 to 0.070
4.0 to 6.0