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Class 3 Tungsten vs. Grade 28 Titanium

Class 3 tungsten belongs to the otherwise unclassified metals classification, while grade 28 titanium belongs to the titanium 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 3 tungsten and the bottom bar is grade 28 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
110
Elongation at Break, % 3.4
11 to 17
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 100
40
Tensile Strength: Ultimate (UTS), MPa 830
690 to 980
Tensile Strength: Yield (Proof), MPa 580
540 to 810

Thermal Properties

Latent Heat of Fusion, J/g 170
410
Specific Heat Capacity, J/kg-K 120
550
Thermal Conductivity, W/m-K 30
8.3
Thermal Expansion, µm/m-K 4.5
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
1.3
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
2.7

Otherwise Unclassified Properties

Density, g/cm3 15
4.5
Embodied Carbon, kg CO2/kg material 23
37
Embodied Energy, MJ/kg 360
600
Embodied Water, L/kg 150
370

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25
87 to 110
Resilience: Unit (Modulus of Resilience), kJ/m3 630
1370 to 3100
Stiffness to Weight: Axial, points 9.6
13
Stiffness to Weight: Bending, points 14
35
Strength to Weight: Axial, points 15
43 to 61
Strength to Weight: Bending, points 13
39 to 49
Thermal Diffusivity, mm2/s 15
3.4
Thermal Shock Resistance, points 49
47 to 66

Alloy Composition

Aluminum (Al), % 0
2.5 to 3.5
Carbon (C), % 0
0 to 0.080
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0
0 to 0.25
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.15
Ruthenium (Ru), % 0
0.080 to 0.14
Titanium (Ti), % 0
92.4 to 95.4
Tungsten (W), % 95
0
Vanadium (V), % 0
2.0 to 3.0
Residuals, % 0
0 to 0.4