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392.0 Aluminum vs. C84400 Valve Metal

392.0 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 (1, 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 392.0 aluminum and the bottom bar is C84400 valve metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 75
100
Elongation at Break, % 0.86
19
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 28
39
Tensile Strength: Ultimate (UTS), MPa 290
230
Tensile Strength: Yield (Proof), MPa 270
110

Thermal Properties

Latent Heat of Fusion, J/g 670
180
Maximum Temperature: Mechanical, °C 170
160
Melting Completion (Liquidus), °C 670
1000
Melting Onset (Solidus), °C 580
840
Specific Heat Capacity, J/kg-K 900
370
Thermal Conductivity, W/m-K 130
72
Thermal Expansion, µm/m-K 19
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
16
Electrical Conductivity: Equal Weight (Specific), % IACS 90
17

Otherwise Unclassified Properties

Base Metal Price, % relative 10
29
Density, g/cm3 2.5
8.8
Embodied Carbon, kg CO2/kg material 7.5
2.8
Embodied Energy, MJ/kg 140
46
Embodied Water, L/kg 950
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 2.4
36
Resilience: Unit (Modulus of Resilience), kJ/m3 490
58
Stiffness to Weight: Axial, points 17
6.6
Stiffness to Weight: Bending, points 56
18
Strength to Weight: Axial, points 32
7.2
Strength to Weight: Bending, points 39
9.4
Thermal Diffusivity, mm2/s 60
22
Thermal Shock Resistance, points 15
8.3

Alloy Composition

Aluminum (Al), % 73.9 to 80.6
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 0.4 to 0.8
78 to 82
Iron (Fe), % 0 to 1.5
0 to 0.4
Lead (Pb), % 0
6.0 to 8.0
Magnesium (Mg), % 0.8 to 1.2
0
Manganese (Mn), % 0.2 to 0.6
0
Nickel (Ni), % 0 to 0.5
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 18 to 20
0 to 0.0050
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0 to 0.3
2.3 to 3.5
Titanium (Ti), % 0 to 0.2
0
Zinc (Zn), % 0 to 0.5
7.0 to 10
Residuals, % 0
0 to 0.7