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Grade 27 Titanium vs. Class 1 Tungsten

Grade 27 titanium belongs to the titanium alloys classification, while class 1 tungsten belongs to the otherwise unclassified metals. 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 grade 27 titanium and the bottom bar is class 1 tungsten.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
250
Elongation at Break, % 27
5.7
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
98
Tensile Strength: Ultimate (UTS), MPa 270
860
Tensile Strength: Yield (Proof), MPa 230
580

Thermal Properties

Latent Heat of Fusion, J/g 420
160
Specific Heat Capacity, J/kg-K 540
120
Thermal Conductivity, W/m-K 21
21
Thermal Expansion, µm/m-K 8.7
5.1

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
12
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
7.4

Otherwise Unclassified Properties

Density, g/cm3 4.5
15
Embodied Carbon, kg CO2/kg material 33
22
Embodied Energy, MJ/kg 530
340
Embodied Water, L/kg 320
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70
44
Resilience: Unit (Modulus of Resilience), kJ/m3 240
660
Stiffness to Weight: Axial, points 13
9.6
Stiffness to Weight: Bending, points 35
14
Strength to Weight: Axial, points 17
16
Strength to Weight: Bending, points 21
14
Thermal Diffusivity, mm2/s 8.8
12
Thermal Shock Resistance, points 21
48

Alloy Composition

Carbon (C), % 0 to 0.080
0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
0
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Ruthenium (Ru), % 0.080 to 0.14
0
Titanium (Ti), % 99 to 99.92
0
Tungsten (W), % 0
90
Residuals, % 0
10