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EN AC-21100 Aluminum vs. C87300 Bronze

EN AC-21100 aluminum belongs to the aluminum alloys classification, while C87300 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-21100 aluminum and the bottom bar is C87300 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 71
120
Elongation at Break, % 6.2 to 7.3
22
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 27
43
Tensile Strength: Ultimate (UTS), MPa 340 to 350
350
Tensile Strength: Yield (Proof), MPa 210 to 240
140

Thermal Properties

Latent Heat of Fusion, J/g 390
280
Maximum Temperature: Mechanical, °C 170
200
Melting Completion (Liquidus), °C 670
970
Melting Onset (Solidus), °C 550
820
Specific Heat Capacity, J/kg-K 880
410
Thermal Conductivity, W/m-K 130
28
Thermal Expansion, µm/m-K 23
17

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 34
6.1
Electrical Conductivity: Equal Weight (Specific), % IACS 100
6.4

Otherwise Unclassified Properties

Base Metal Price, % relative 11
29
Density, g/cm3 3.0
8.6
Embodied Carbon, kg CO2/kg material 8.0
2.7
Embodied Energy, MJ/kg 150
42
Embodied Water, L/kg 1150
300

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19 to 21
62
Resilience: Unit (Modulus of Resilience), kJ/m3 300 to 400
86
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 46
19
Strength to Weight: Axial, points 31 to 33
11
Strength to Weight: Bending, points 36 to 37
13
Thermal Diffusivity, mm2/s 48
8.0
Thermal Shock Resistance, points 15
13

Alloy Composition


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Aluminum (Al), % 93.4 to 95.7
0
Copper (Cu), % 4.2 to 5.2
94 to 95.7
Iron (Fe), % 0 to 0.19
0 to 0.2
Lead (Pb), % 0
0 to 0.2
Manganese (Mn), % 0 to 0.55
0.8 to 1.5
Silicon (Si), % 0 to 0.18
3.5 to 5.0
Titanium (Ti), % 0.15 to 0.3
0
Zinc (Zn), % 0 to 0.070
0 to 0.25
Residuals, % 0 to 0.1
0 to 0.5