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EN AC-42100 Aluminum vs. C64700 Bronze

EN AC-42100 aluminum belongs to the aluminum alloys classification, while C64700 bronze belongs to the copper alloys. There are 28 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 EN AC-42100 aluminum and the bottom bar is C64700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
120
Elongation at Break, % 3.4 to 9.0
9.0
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
44
Tensile Strength: Ultimate (UTS), MPa 280 to 290
660
Tensile Strength: Yield (Proof), MPa 210 to 230
560

Thermal Properties

Latent Heat of Fusion, J/g 500
220
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 610
1090
Melting Onset (Solidus), °C 600
1030
Specific Heat Capacity, J/kg-K 910
390
Thermal Conductivity, W/m-K 150
210
Thermal Expansion, µm/m-K 22
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
38
Electrical Conductivity: Equal Weight (Specific), % IACS 140
38

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
31
Density, g/cm3 2.6
8.9
Embodied Carbon, kg CO2/kg material 8.0
2.7
Embodied Energy, MJ/kg 150
43
Embodied Water, L/kg 1110
310

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1 to 23
57
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 370
1370
Stiffness to Weight: Axial, points 15
7.3
Stiffness to Weight: Bending, points 53
18
Strength to Weight: Axial, points 30 to 31
21
Strength to Weight: Bending, points 37 to 38
19
Thermal Diffusivity, mm2/s 66
59
Thermal Shock Resistance, points 13
24

Alloy Composition

Aluminum (Al), % 91.3 to 93.3
0
Copper (Cu), % 0 to 0.050
95.8 to 98
Iron (Fe), % 0 to 0.19
0 to 0.1
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0.25 to 0.45
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
1.6 to 2.2
Silicon (Si), % 6.5 to 7.5
0.4 to 0.8
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.070
0 to 0.5
Residuals, % 0
0 to 0.5