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7204 Aluminum vs. CC494K Bronze

7204 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 7204 aluminum and the bottom bar is CC494K bronze.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
100
Elongation at Break, % 11 to 13
7.6
Poisson's Ratio 0.33
0.35
Shear Modulus, GPa 26
39
Tensile Strength: Ultimate (UTS), MPa 220 to 380
210
Tensile Strength: Yield (Proof), MPa 120 to 310
94

Thermal Properties

Latent Heat of Fusion, J/g 380
180
Maximum Temperature: Mechanical, °C 210
160
Melting Completion (Liquidus), °C 640
970
Melting Onset (Solidus), °C 520
890
Specific Heat Capacity, J/kg-K 880
360
Thermal Conductivity, W/m-K 150
63
Thermal Expansion, µm/m-K 24
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 39
16
Electrical Conductivity: Equal Weight (Specific), % IACS 120
16

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
31
Density, g/cm3 2.9
9.1
Embodied Carbon, kg CO2/kg material 8.4
3.1
Embodied Energy, MJ/kg 150
50
Embodied Water, L/kg 1140
360

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25 to 40
13
Resilience: Unit (Modulus of Resilience), kJ/m3 110 to 710
43
Stiffness to Weight: Axial, points 13
6.4
Stiffness to Weight: Bending, points 47
17
Strength to Weight: Axial, points 21 to 36
6.5
Strength to Weight: Bending, points 28 to 40
8.8
Thermal Diffusivity, mm2/s 58
19
Thermal Shock Resistance, points 9.4 to 16
7.8

Alloy Composition

Aluminum (Al), % 90.5 to 94.8
0 to 0.010
Antimony (Sb), % 0
0 to 0.5
Chromium (Cr), % 0 to 0.3
0
Copper (Cu), % 0 to 0.2
78 to 87
Iron (Fe), % 0 to 0.35
0 to 0.25
Lead (Pb), % 0
8.0 to 10
Magnesium (Mg), % 1.0 to 2.0
0
Manganese (Mn), % 0.2 to 0.7
0 to 0.2
Nickel (Ni), % 0
0 to 2.0
Phosphorus (P), % 0
0 to 0.1
Silicon (Si), % 0 to 0.3
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
Vanadium (V), % 0 to 0.1
0
Zinc (Zn), % 4.0 to 5.0
0 to 2.0
Zirconium (Zr), % 0 to 0.25
0
Residuals, % 0 to 0.15
0