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C95200 Bronze vs. 4045 Aluminum

C95200 bronze belongs to the copper alloys classification, while 4045 aluminum belongs to the aluminum alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 4045 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
71
Elongation at Break, % 29
2.3
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 42
27
Tensile Strength: Ultimate (UTS), MPa 520
120
Tensile Strength: Yield (Proof), MPa 190
64

Thermal Properties

Latent Heat of Fusion, J/g 230
540
Maximum Temperature: Mechanical, °C 220
160
Melting Completion (Liquidus), °C 1050
600
Melting Onset (Solidus), °C 1040
580
Specific Heat Capacity, J/kg-K 430
900
Thermal Conductivity, W/m-K 50
170
Thermal Expansion, µm/m-K 18
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
45
Electrical Conductivity: Equal Weight (Specific), % IACS 12
160

Otherwise Unclassified Properties

Base Metal Price, % relative 28
9.5
Density, g/cm3 8.3
2.6
Embodied Carbon, kg CO2/kg material 3.0
7.8
Embodied Energy, MJ/kg 50
150
Embodied Water, L/kg 380
1070

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
2.4
Resilience: Unit (Modulus of Resilience), kJ/m3 170
29
Stiffness to Weight: Axial, points 7.6
15
Stiffness to Weight: Bending, points 19
54
Strength to Weight: Axial, points 17
13
Strength to Weight: Bending, points 17
21
Thermal Diffusivity, mm2/s 14
74
Thermal Shock Resistance, points 19
5.7

Alloy Composition

Aluminum (Al), % 8.5 to 9.5
87.4 to 91
Copper (Cu), % 86 to 89
0 to 0.3
Iron (Fe), % 2.5 to 4.0
0 to 0.8
Magnesium (Mg), % 0
0 to 0.050
Manganese (Mn), % 0
0 to 0.050
Silicon (Si), % 0
9.0 to 11
Titanium (Ti), % 0
0 to 0.2
Zinc (Zn), % 0
0 to 0.1
Residuals, % 0
0 to 0.15