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2618A Aluminum vs. CC494K Bronze

2618A aluminum belongs to the aluminum alloys classification, while CC494K 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 2618A aluminum and the bottom bar is CC494K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 72
100
Elongation at Break, % 4.5
7.6
Poisson's Ratio 0.33
0.35
Shear Modulus, GPa 27
39
Tensile Strength: Ultimate (UTS), MPa 440
210
Tensile Strength: Yield (Proof), MPa 410
94

Thermal Properties

Latent Heat of Fusion, J/g 390
180
Maximum Temperature: Mechanical, °C 230
160
Melting Completion (Liquidus), °C 670
970
Melting Onset (Solidus), °C 560
890
Specific Heat Capacity, J/kg-K 880
360
Thermal Conductivity, W/m-K 150
63
Thermal Expansion, µm/m-K 23
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 37
16
Electrical Conductivity: Equal Weight (Specific), % IACS 110
16

Otherwise Unclassified Properties

Base Metal Price, % relative 11
31
Density, g/cm3 3.0
9.1
Embodied Carbon, kg CO2/kg material 8.4
3.1
Embodied Energy, MJ/kg 150
50
Embodied Water, L/kg 1150
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 19
13
Resilience: Unit (Modulus of Resilience), kJ/m3 1180
43
Stiffness to Weight: Axial, points 13
6.4
Stiffness to Weight: Bending, points 47
17
Strength to Weight: Axial, points 41
6.5
Strength to Weight: Bending, points 44
8.8
Thermal Diffusivity, mm2/s 59
19
Thermal Shock Resistance, points 19
7.8

Alloy Composition

Aluminum (Al), % 91.5 to 95.2
0 to 0.010
Antimony (Sb), % 0
0 to 0.5
Copper (Cu), % 1.8 to 2.7
78 to 87
Iron (Fe), % 0.9 to 1.4
0 to 0.25
Lead (Pb), % 0
8.0 to 10
Magnesium (Mg), % 1.2 to 1.8
0
Manganese (Mn), % 0 to 0.25
0 to 0.2
Nickel (Ni), % 0.8 to 1.4
0 to 2.0
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0.15 to 0.25
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0
4.0 to 6.0
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.15
0 to 2.0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0