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CC494K Bronze vs. 4145 Aluminum

CC494K bronze belongs to the copper alloys classification, while 4145 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 CC494K bronze and the bottom bar is 4145 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
73
Elongation at Break, % 7.6
2.2
Poisson's Ratio 0.35
0.33
Shear Modulus, GPa 39
28
Tensile Strength: Ultimate (UTS), MPa 210
120
Tensile Strength: Yield (Proof), MPa 94
68

Thermal Properties

Latent Heat of Fusion, J/g 180
540
Maximum Temperature: Mechanical, °C 160
160
Melting Completion (Liquidus), °C 970
590
Melting Onset (Solidus), °C 890
520
Specific Heat Capacity, J/kg-K 360
880
Thermal Conductivity, W/m-K 63
100
Thermal Expansion, µm/m-K 19
21

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
26
Electrical Conductivity: Equal Weight (Specific), % IACS 16
84

Otherwise Unclassified Properties

Base Metal Price, % relative 31
10
Density, g/cm3 9.1
2.8
Embodied Carbon, kg CO2/kg material 3.1
7.6
Embodied Energy, MJ/kg 50
140
Embodied Water, L/kg 360
1040

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
2.3
Resilience: Unit (Modulus of Resilience), kJ/m3 43
31
Stiffness to Weight: Axial, points 6.4
14
Stiffness to Weight: Bending, points 17
50
Strength to Weight: Axial, points 6.5
12
Strength to Weight: Bending, points 8.8
19
Thermal Diffusivity, mm2/s 19
42
Thermal Shock Resistance, points 7.8
5.5

Alloy Composition

Aluminum (Al), % 0 to 0.010
83 to 87.4
Antimony (Sb), % 0 to 0.5
0
Chromium (Cr), % 0
0 to 0.15
Copper (Cu), % 78 to 87
3.3 to 4.7
Iron (Fe), % 0 to 0.25
0 to 0.8
Lead (Pb), % 8.0 to 10
0
Magnesium (Mg), % 0
0 to 0.15
Manganese (Mn), % 0 to 0.2
0 to 0.15
Nickel (Ni), % 0 to 2.0
0
Phosphorus (P), % 0 to 0.1
0
Silicon (Si), % 0 to 0.010
9.3 to 10.7
Sulfur (S), % 0 to 0.1
0
Tin (Sn), % 4.0 to 6.0
0
Zinc (Zn), % 0 to 2.0
0 to 0.2
Residuals, % 0
0 to 0.15