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EN AC-42100 Aluminum vs. C90300 Bronze

EN AC-42100 aluminum belongs to the aluminum alloys classification, while C90300 bronze belongs to the copper alloys. There are 28 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 EN AC-42100 aluminum and the bottom bar is C90300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 3.4 to 9.0
22
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
41
Tensile Strength: Ultimate (UTS), MPa 280 to 290
330
Tensile Strength: Yield (Proof), MPa 210 to 230
150

Thermal Properties

Latent Heat of Fusion, J/g 500
190
Maximum Temperature: Mechanical, °C 170
170
Melting Completion (Liquidus), °C 610
1000
Melting Onset (Solidus), °C 600
850
Specific Heat Capacity, J/kg-K 910
370
Thermal Conductivity, W/m-K 150
75
Thermal Expansion, µm/m-K 22
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
12
Electrical Conductivity: Equal Weight (Specific), % IACS 140
12

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
33
Density, g/cm3 2.6
8.7
Embodied Carbon, kg CO2/kg material 8.0
3.4
Embodied Energy, MJ/kg 150
56
Embodied Water, L/kg 1110
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1 to 23
59
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 370
110
Stiffness to Weight: Axial, points 15
7.0
Stiffness to Weight: Bending, points 53
18
Strength to Weight: Axial, points 30 to 31
11
Strength to Weight: Bending, points 37 to 38
12
Thermal Diffusivity, mm2/s 66
23
Thermal Shock Resistance, points 13
12

Alloy Composition

Aluminum (Al), % 91.3 to 93.3
0 to 0.0050
Antimony (Sb), % 0
0 to 0.2
Copper (Cu), % 0 to 0.050
86 to 89
Iron (Fe), % 0 to 0.19
0 to 0.2
Lead (Pb), % 0
0 to 0.3
Magnesium (Mg), % 0.25 to 0.45
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 6.5 to 7.5
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
7.5 to 9.0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.070
3.0 to 5.0
Residuals, % 0
0 to 0.6