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EN AC-42100 Aluminum vs. C91100 Bronze

EN AC-42100 aluminum belongs to the aluminum alloys classification, while C91100 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 C91100 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
100
Elongation at Break, % 3.4 to 9.0
2.0
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
39
Tensile Strength: Ultimate (UTS), MPa 280 to 290
240
Tensile Strength: Yield (Proof), MPa 210 to 230
170

Thermal Properties

Latent Heat of Fusion, J/g 500
180
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 610
950
Melting Onset (Solidus), °C 600
820
Specific Heat Capacity, J/kg-K 910
360
Thermal Conductivity, W/m-K 150
63
Thermal Expansion, µm/m-K 22
18

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 41
8.0
Electrical Conductivity: Equal Weight (Specific), % IACS 140
8.3

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
38
Density, g/cm3 2.6
8.7
Embodied Carbon, kg CO2/kg material 8.0
4.2
Embodied Energy, MJ/kg 150
69
Embodied Water, L/kg 1110
440

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1 to 23
4.4
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 370
140
Stiffness to Weight: Axial, points 15
6.7
Stiffness to Weight: Bending, points 53
18
Strength to Weight: Axial, points 30 to 31
7.7
Strength to Weight: Bending, points 37 to 38
9.9
Thermal Diffusivity, mm2/s 66
20
Thermal Shock Resistance, points 13
9.1

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
82 to 85
Iron (Fe), % 0 to 0.19
0 to 0.25
Lead (Pb), % 0
0 to 0.25
Magnesium (Mg), % 0.25 to 0.45
0
Manganese (Mn), % 0 to 0.1
0
Nickel (Ni), % 0
0 to 0.5
Phosphorus (P), % 0
0 to 1.0
Silicon (Si), % 6.5 to 7.5
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
15 to 17
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.070
0 to 0.25
Residuals, % 0 to 0.1
0