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A356.0 Aluminum vs. C38500 Bronze

A356.0 aluminum belongs to the aluminum alloys classification, while C38500 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 A356.0 aluminum and the bottom bar is C38500 bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
100
Elongation at Break, % 3.0 to 6.0
17
Poisson's Ratio 0.33
0.31
Shear Modulus, GPa 26
37
Tensile Strength: Ultimate (UTS), MPa 160 to 270
370
Tensile Strength: Yield (Proof), MPa 83 to 200
130

Thermal Properties

Latent Heat of Fusion, J/g 500
160
Maximum Temperature: Mechanical, °C 170
110
Melting Completion (Liquidus), °C 610
890
Melting Onset (Solidus), °C 570
880
Specific Heat Capacity, J/kg-K 900
380
Thermal Conductivity, W/m-K 150
120
Thermal Expansion, µm/m-K 21
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 40
28
Electrical Conductivity: Equal Weight (Specific), % IACS 140
31

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
22
Density, g/cm3 2.6
8.1
Embodied Carbon, kg CO2/kg material 8.0
2.6
Embodied Energy, MJ/kg 150
45
Embodied Water, L/kg 1110
320

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.8 to 15
48
Resilience: Unit (Modulus of Resilience), kJ/m3 49 to 300
78
Stiffness to Weight: Axial, points 15
7.0
Stiffness to Weight: Bending, points 53
19
Strength to Weight: Axial, points 17 to 29
13
Strength to Weight: Bending, points 25 to 36
14
Thermal Diffusivity, mm2/s 64
40
Thermal Shock Resistance, points 7.6 to 13
12

Alloy Composition

Aluminum (Al), % 91.1 to 93.3
0
Copper (Cu), % 0 to 0.2
55 to 59
Iron (Fe), % 0 to 0.2
0 to 0.35
Lead (Pb), % 0
2.5 to 3.5
Magnesium (Mg), % 0.25 to 0.45
0
Manganese (Mn), % 0 to 0.1
0
Silicon (Si), % 6.5 to 7.5
0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.1
36.7 to 42.5
Residuals, % 0
0 to 0.5