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2095 Aluminum vs. C84400 Valve Metal

2095 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 (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 2095 aluminum and the bottom bar is C84400 valve metal.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 70
100
Elongation at Break, % 8.5
19
Poisson's Ratio 0.33
0.34
Shear Modulus, GPa 26
39
Tensile Strength: Ultimate (UTS), MPa 700
230
Tensile Strength: Yield (Proof), MPa 610
110

Thermal Properties

Latent Heat of Fusion, J/g 390
180
Maximum Temperature: Mechanical, °C 210
160
Melting Completion (Liquidus), °C 660
1000
Melting Onset (Solidus), °C 540
840
Specific Heat Capacity, J/kg-K 910
370
Thermal Conductivity, W/m-K 130
72
Thermal Expansion, µm/m-K 23
19

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 35
16
Electrical Conductivity: Equal Weight (Specific), % IACS 110
17

Otherwise Unclassified Properties

Base Metal Price, % relative 31
29
Density, g/cm3 3.0
8.8
Embodied Carbon, kg CO2/kg material 8.6
2.8
Embodied Energy, MJ/kg 160
46
Embodied Water, L/kg 1470
340

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 57
36
Resilience: Unit (Modulus of Resilience), kJ/m3 2640
58
Stiffness to Weight: Axial, points 13
6.6
Stiffness to Weight: Bending, points 46
18
Strength to Weight: Axial, points 65
7.2
Strength to Weight: Bending, points 59
9.4
Thermal Diffusivity, mm2/s 49
22
Thermal Shock Resistance, points 31
8.3

Alloy Composition

Aluminum (Al), % 91.3 to 94.9
0 to 0.0050
Antimony (Sb), % 0
0 to 0.25
Copper (Cu), % 3.9 to 4.6
78 to 82
Iron (Fe), % 0 to 0.15
0 to 0.4
Lead (Pb), % 0
6.0 to 8.0
Lithium (Li), % 0.7 to 1.5
0
Magnesium (Mg), % 0.25 to 0.8
0
Manganese (Mn), % 0 to 0.25
0
Nickel (Ni), % 0
0 to 1.0
Phosphorus (P), % 0
0 to 1.5
Silicon (Si), % 0 to 0.12
0 to 0.0050
Silver (Ag), % 0.25 to 0.6
0
Sulfur (S), % 0
0 to 0.080
Tin (Sn), % 0
2.3 to 3.5
Titanium (Ti), % 0 to 0.1
0
Zinc (Zn), % 0 to 0.25
7.0 to 10
Zirconium (Zr), % 0.040 to 0.18
0
Residuals, % 0
0 to 0.7