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EN AC-42100 Aluminum vs. C94700 Bronze

EN AC-42100 aluminum belongs to the aluminum alloys classification, while C94700 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 C94700 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
110
Elongation at Break, % 3.4 to 9.0
7.9 to 32
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
43
Tensile Strength: Ultimate (UTS), MPa 280 to 290
350 to 590
Tensile Strength: Yield (Proof), MPa 210 to 230
160 to 400

Thermal Properties

Latent Heat of Fusion, J/g 500
200
Maximum Temperature: Mechanical, °C 170
190
Melting Completion (Liquidus), °C 610
1030
Melting Onset (Solidus), °C 600
900
Specific Heat Capacity, J/kg-K 910
380
Thermal Conductivity, W/m-K 150
54
Thermal Expansion, µm/m-K 22
17

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
34
Density, g/cm3 2.6
8.8
Embodied Carbon, kg CO2/kg material 8.0
3.5
Embodied Energy, MJ/kg 150
56
Embodied Water, L/kg 1110
350

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 9.1 to 23
41 to 89
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 370
110 to 700
Stiffness to Weight: Axial, points 15
7.3
Stiffness to Weight: Bending, points 53
18
Strength to Weight: Axial, points 30 to 31
11 to 19
Strength to Weight: Bending, points 37 to 38
13 to 18
Thermal Diffusivity, mm2/s 66
16
Thermal Shock Resistance, points 13
12 to 21

Alloy Composition

Aluminum (Al), % 91.3 to 93.3
0 to 0.0050
Antimony (Sb), % 0
0 to 0.15
Copper (Cu), % 0 to 0.050
85 to 90
Iron (Fe), % 0 to 0.19
0 to 0.25
Lead (Pb), % 0
0 to 0.1
Magnesium (Mg), % 0.25 to 0.45
0
Manganese (Mn), % 0 to 0.1
0 to 0.2
Nickel (Ni), % 0
4.5 to 6.0
Phosphorus (P), % 0
0 to 0.050
Silicon (Si), % 6.5 to 7.5
0 to 0.0050
Sulfur (S), % 0
0 to 0.050
Tin (Sn), % 0
4.5 to 6.0
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.070
1.0 to 2.5
Residuals, % 0
0 to 1.3