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CC494K Bronze vs. 7021 Aluminum

CC494K bronze belongs to the copper alloys classification, while 7021 aluminum belongs to the aluminum 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 CC494K bronze and the bottom bar is 7021 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
69
Elongation at Break, % 7.6
9.4
Poisson's Ratio 0.35
0.32
Shear Modulus, GPa 39
26
Tensile Strength: Ultimate (UTS), MPa 210
460
Tensile Strength: Yield (Proof), MPa 94
390

Thermal Properties

Latent Heat of Fusion, J/g 180
380
Maximum Temperature: Mechanical, °C 160
200
Melting Completion (Liquidus), °C 970
630
Melting Onset (Solidus), °C 890
510
Specific Heat Capacity, J/kg-K 360
870
Thermal Conductivity, W/m-K 63
150
Thermal Expansion, µm/m-K 19
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 16
38
Electrical Conductivity: Equal Weight (Specific), % IACS 16
120

Otherwise Unclassified Properties

Base Metal Price, % relative 31
9.5
Density, g/cm3 9.1
2.9
Embodied Carbon, kg CO2/kg material 3.1
8.3
Embodied Energy, MJ/kg 50
150
Embodied Water, L/kg 360
1140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 13
41
Resilience: Unit (Modulus of Resilience), kJ/m3 43
1110
Stiffness to Weight: Axial, points 6.4
13
Stiffness to Weight: Bending, points 17
47
Strength to Weight: Axial, points 6.5
44
Strength to Weight: Bending, points 8.8
45
Thermal Diffusivity, mm2/s 19
59
Thermal Shock Resistance, points 7.8
20

Alloy Composition

Aluminum (Al), % 0 to 0.010
90.7 to 93.7
Antimony (Sb), % 0 to 0.5
0
Chromium (Cr), % 0
0 to 0.050
Copper (Cu), % 78 to 87
0 to 0.25
Iron (Fe), % 0 to 0.25
0 to 0.4
Lead (Pb), % 8.0 to 10
0
Magnesium (Mg), % 0
1.2 to 1.8
Manganese (Mn), % 0 to 0.2
0 to 0.1
Nickel (Ni), % 0 to 2.0
0
Phosphorus (P), % 0 to 0.1
0
Silicon (Si), % 0 to 0.010
0 to 0.25
Sulfur (S), % 0 to 0.1
0
Tin (Sn), % 4.0 to 6.0
0
Titanium (Ti), % 0
0 to 0.1
Zinc (Zn), % 0 to 2.0
5.0 to 6.0
Zirconium (Zr), % 0
0.080 to 0.18
Residuals, % 0
0 to 0.15