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C67400 Bronze vs. 2218 Aluminum

C67400 bronze belongs to the copper alloys classification, while 2218 aluminum belongs to the aluminum 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 C67400 bronze and the bottom bar is 2218 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
73
Elongation at Break, % 22 to 28
6.8 to 10
Poisson's Ratio 0.31
0.33
Shear Modulus, GPa 41
27
Shear Strength, MPa 310 to 350
210 to 250
Tensile Strength: Ultimate (UTS), MPa 480 to 610
330 to 430
Tensile Strength: Yield (Proof), MPa 250 to 370
260 to 310

Thermal Properties

Latent Heat of Fusion, J/g 190
390
Maximum Temperature: Mechanical, °C 130
220
Melting Completion (Liquidus), °C 890
640
Melting Onset (Solidus), °C 870
510
Specific Heat Capacity, J/kg-K 400
870
Thermal Conductivity, W/m-K 100
140
Thermal Expansion, µm/m-K 21
22

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 23
37
Electrical Conductivity: Equal Weight (Specific), % IACS 26
110

Otherwise Unclassified Properties

Base Metal Price, % relative 23
11
Density, g/cm3 7.9
3.1
Embodied Carbon, kg CO2/kg material 2.8
8.2
Embodied Energy, MJ/kg 48
150
Embodied Water, L/kg 330
1130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110 to 120
27 to 31
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 660
450 to 650
Stiffness to Weight: Axial, points 7.5
13
Stiffness to Weight: Bending, points 20
45
Strength to Weight: Axial, points 17 to 22
30 to 39
Strength to Weight: Bending, points 17 to 20
34 to 41
Thermal Diffusivity, mm2/s 32
52
Thermal Shock Resistance, points 16 to 20
15 to 19

Alloy Composition

Aluminum (Al), % 0.5 to 2.0
88.8 to 93.6
Chromium (Cr), % 0
0 to 0.1
Copper (Cu), % 57 to 60
3.5 to 4.5
Iron (Fe), % 0 to 0.35
0 to 1.0
Lead (Pb), % 0 to 0.5
0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 2.0 to 3.5
0 to 0.2
Nickel (Ni), % 0 to 0.25
1.7 to 2.3
Silicon (Si), % 0.5 to 1.5
0 to 0.9
Tin (Sn), % 0 to 0.3
0
Zinc (Zn), % 31.1 to 40
0 to 0.25
Residuals, % 0
0 to 0.15