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Class 4 Tungsten vs. 4115 Aluminum

Class 4 tungsten belongs to the otherwise unclassified metals classification, while 4115 aluminum belongs to the aluminum alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, 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 class 4 tungsten and the bottom bar is 4115 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
70
Elongation at Break, % 2.3
1.1 to 11
Poisson's Ratio 0.28
0.33
Shear Modulus, GPa 110
26
Tensile Strength: Ultimate (UTS), MPa 790
120 to 220
Tensile Strength: Yield (Proof), MPa 580
39 to 190

Thermal Properties

Latent Heat of Fusion, J/g 170
420
Specific Heat Capacity, J/kg-K 130
900
Thermal Conductivity, W/m-K 30
160
Thermal Expansion, µm/m-K 4.5
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 17
41
Electrical Conductivity: Equal Weight (Specific), % IACS 9.7
140

Otherwise Unclassified Properties

Density, g/cm3 16
2.7
Embodied Carbon, kg CO2/kg material 24
8.1
Embodied Energy, MJ/kg 360
150
Embodied Water, L/kg 150
1160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16
2.1 to 10
Resilience: Unit (Modulus of Resilience), kJ/m3 620
11 to 270
Stiffness to Weight: Axial, points 9.6
14
Stiffness to Weight: Bending, points 14
50
Strength to Weight: Axial, points 14
12 to 23
Strength to Weight: Bending, points 12
20 to 30
Thermal Diffusivity, mm2/s 15
66
Thermal Shock Resistance, points 46
5.2 to 9.9

Alloy Composition

Aluminum (Al), % 0
94.6 to 97.4
Copper (Cu), % 0
0.1 to 0.5
Iron (Fe), % 0
0 to 0.7
Magnesium (Mg), % 0
0.1 to 0.5
Manganese (Mn), % 0
0.6 to 1.2
Silicon (Si), % 0
1.8 to 2.2
Tungsten (W), % 97
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.15