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C95200 Bronze vs. 7178 Aluminum

C95200 bronze belongs to the copper alloys classification, while 7178 aluminum belongs to the aluminum 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 C95200 bronze and the bottom bar is 7178 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 29
4.5 to 12
Poisson's Ratio 0.34
0.32
Shear Modulus, GPa 42
27
Tensile Strength: Ultimate (UTS), MPa 520
240 to 640
Tensile Strength: Yield (Proof), MPa 190
120 to 560

Thermal Properties

Latent Heat of Fusion, J/g 230
370
Maximum Temperature: Mechanical, °C 220
180
Melting Completion (Liquidus), °C 1050
630
Melting Onset (Solidus), °C 1040
480
Specific Heat Capacity, J/kg-K 430
860
Thermal Conductivity, W/m-K 50
130
Thermal Expansion, µm/m-K 18
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
31
Electrical Conductivity: Equal Weight (Specific), % IACS 12
91

Otherwise Unclassified Properties

Base Metal Price, % relative 28
10
Density, g/cm3 8.3
3.1
Embodied Carbon, kg CO2/kg material 3.0
8.2
Embodied Energy, MJ/kg 50
150
Embodied Water, L/kg 380
1110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
24 to 52
Resilience: Unit (Modulus of Resilience), kJ/m3 170
110 to 2220
Stiffness to Weight: Axial, points 7.6
13
Stiffness to Weight: Bending, points 19
45
Strength to Weight: Axial, points 17
21 to 58
Strength to Weight: Bending, points 17
28 to 54
Thermal Diffusivity, mm2/s 14
47
Thermal Shock Resistance, points 19
10 to 28

Alloy Composition

Aluminum (Al), % 8.5 to 9.5
85.4 to 89.5
Chromium (Cr), % 0
0.18 to 0.28
Copper (Cu), % 86 to 89
1.6 to 2.4
Iron (Fe), % 2.5 to 4.0
0 to 0.5
Magnesium (Mg), % 0
2.4 to 3.1
Manganese (Mn), % 0
0 to 0.3
Silicon (Si), % 0
0 to 0.4
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
6.3 to 7.3
Residuals, % 0
0 to 0.15