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520.0 Aluminum vs. C84400 Valve Metal

520.0 aluminum belongs to the aluminum alloys classification, while C84400 valve metal belongs to the copper 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 520.0 aluminum and the bottom bar is C84400 valve metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 66
100
Elongation at Break, % 14
19
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 25
39
Tensile Strength: Ultimate (UTS), MPa 330
230
Tensile Strength: Yield (Proof), MPa 170
110

Thermal Properties

Latent Heat of Fusion, J/g 390
180
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 600
1000
Melting Onset (Solidus), °C 480
840
Specific Heat Capacity, J/kg-K 910
370
Thermal Conductivity, W/m-K 87
72
Thermal Expansion, µm/m-K 25
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 21
16
Electrical Conductivity: Equal Weight (Specific), % IACS 72
17

Otherwise Unclassified Properties

Base Metal Price, % relative 9.5
29
Density, g/cm3 2.6
8.8
Embodied Carbon, kg CO2/kg material 9.8
2.8
Embodied Energy, MJ/kg 160
46
Embodied Water, L/kg 1170
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 39
36
Resilience: Unit (Modulus of Resilience), kJ/m3 230
58
Stiffness to Weight: Axial, points 14
6.6
Stiffness to Weight: Bending, points 52
18
Strength to Weight: Axial, points 35
7.2
Strength to Weight: Bending, points 41
9.4
Thermal Diffusivity, mm2/s 37
22
Thermal Shock Resistance, points 14
8.3

Alloy Composition

Aluminum (Al), % 87.9 to 90.5
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 0 to 0.25
78 to 82
Iron (Fe), % 0 to 0.3
0 to 0.4
Lead (Pb), % 0
6.0 to 8.0
Magnesium (Mg), % 9.5 to 10.6
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0 to 0.25
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
2.3 to 3.5
Titanium (Ti), % 0 to 0.25
0
Zinc (Zn), % 0 to 0.15
7.0 to 10
Residuals, % 0
0 to 0.7