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A242.0 Aluminum vs. C67300 Bronze

A242.0 aluminum belongs to the aluminum alloys classification, while C67300 bronze belongs to the copper alloys. There are 25 material properties with values for both materials. Properties with values for just one material (6, 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 A242.0 aluminum and the bottom bar is C67300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 73
110
Elongation at Break, % 1.6
12
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 27
41
Tensile Strength: Ultimate (UTS), MPa 220
500

Thermal Properties

Latent Heat of Fusion, J/g 390
190
Maximum Temperature: Mechanical, °C 210
130
Melting Completion (Liquidus), °C 680
870
Melting Onset (Solidus), °C 550
830
Specific Heat Capacity, J/kg-K 870
390
Thermal Conductivity, W/m-K 140
95
Thermal Expansion, µm/m-K 23
20

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
22
Electrical Conductivity: Equal Weight (Specific), % IACS 110
25

Otherwise Unclassified Properties

Base Metal Price, % relative 12
23
Density, g/cm3 3.1
8.0
Embodied Carbon, kg CO2/kg material 8.3
2.7
Embodied Energy, MJ/kg 150
46
Embodied Water, L/kg 1130
320

Common Calculations

Stiffness to Weight: Axial, points 13
7.4
Stiffness to Weight: Bending, points 45
20
Strength to Weight: Axial, points 20
17
Strength to Weight: Bending, points 26
17
Thermal Diffusivity, mm2/s 52
30
Thermal Shock Resistance, points 9.3
16

Alloy Composition

Aluminum (Al), % 89.3 to 93.1
0 to 0.25
Chromium (Cr), % 0.15 to 0.25
0
Copper (Cu), % 3.7 to 4.5
58 to 63
Iron (Fe), % 0 to 0.8
0 to 0.5
Lead (Pb), % 0
0.4 to 3.0
Magnesium (Mg), % 1.2 to 1.7
0
Manganese (Mn), % 0 to 0.1
2.0 to 3.5
Nickel (Ni), % 1.8 to 2.3
0 to 0.25
Silicon (Si), % 0 to 0.6
0.5 to 1.5
Tin (Sn), % 0
0 to 0.3
Titanium (Ti), % 0.070 to 0.2
0
Zinc (Zn), % 0 to 0.1
27.2 to 39.1
Residuals, % 0
0 to 0.5