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2618 Aluminum vs. CC494K Bronze

2618 aluminum belongs to the aluminum alloys classification, while CC494K bronze belongs to the copper alloys. There are 29 material properties with values for both materials. Properties with values for just one material (2, 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 2618 aluminum and the bottom bar is CC494K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 120
67
Elastic (Young's, Tensile) Modulus, GPa 71
100
Elongation at Break, % 5.8
7.6
Poisson's Ratio 0.33
0.35
Shear Modulus, GPa 27
39
Tensile Strength: Ultimate (UTS), MPa 420
210
Tensile Strength: Yield (Proof), MPa 350
94

Thermal Properties

Latent Heat of Fusion, J/g 390
180
Maximum Temperature: Mechanical, °C 210
160
Melting Completion (Liquidus), °C 640
970
Melting Onset (Solidus), °C 550
890
Specific Heat Capacity, J/kg-K 880
360
Thermal Conductivity, W/m-K 160
63
Thermal Expansion, µm/m-K 22
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 2.9
9.1
Embodied Carbon, kg CO2/kg material 8.3
3.1
Embodied Energy, MJ/kg 150
50
Embodied Water, L/kg 1150
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 23
13
Resilience: Unit (Modulus of Resilience), kJ/m3 850
43
Stiffness to Weight: Axial, points 13
6.4
Stiffness to Weight: Bending, points 47
17
Strength to Weight: Axial, points 40
6.5
Strength to Weight: Bending, points 42
8.8
Thermal Diffusivity, mm2/s 62
19
Thermal Shock Resistance, points 19
7.8

Alloy Composition

Aluminum (Al), % 92.4 to 94.9
0 to 0.010
Antimony (Sb), % 0
0 to 0.5
Copper (Cu), % 1.9 to 2.7
78 to 87
Iron (Fe), % 0.9 to 1.3
0 to 0.25
Lead (Pb), % 0
8.0 to 10
Magnesium (Mg), % 1.3 to 1.8
0
Manganese (Mn), % 0
0 to 0.2
Nickel (Ni), % 0.9 to 1.2
0 to 2.0
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0.1 to 0.25
0 to 0.010
Sulfur (S), % 0
0 to 0.1
Tin (Sn), % 0
4.0 to 6.0
Titanium (Ti), % 0.040 to 0.1
0
Zinc (Zn), % 0 to 0.1
0 to 2.0
Residuals, % 0 to 0.15
0