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Grade Ti-Pd18 Titanium vs. Class 2 Tungsten

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while class 2 tungsten belongs to the otherwise unclassified metals. There are 25 material properties with values for both materials. Properties with values for just one material (5, 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 Ti-Pd18 titanium and the bottom bar is class 2 tungsten.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
260
Elongation at Break, % 17
5.7
Poisson's Ratio 0.32
0.28
Rockwell C Hardness 34
29
Shear Modulus, GPa 40
100
Tensile Strength: Ultimate (UTS), MPa 710
860
Tensile Strength: Yield (Proof), MPa 540
580

Thermal Properties

Latent Heat of Fusion, J/g 410
160
Specific Heat Capacity, J/kg-K 550
120
Thermal Conductivity, W/m-K 8.2
20
Thermal Expansion, µm/m-K 9.1
4.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
13
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
7.8

Otherwise Unclassified Properties

Density, g/cm3 4.5
15
Embodied Carbon, kg CO2/kg material 41
23
Embodied Energy, MJ/kg 670
350
Embodied Water, L/kg 270
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
44
Resilience: Unit (Modulus of Resilience), kJ/m3 1380
640
Stiffness to Weight: Axial, points 13
9.6
Stiffness to Weight: Bending, points 35
14
Strength to Weight: Axial, points 44
16
Strength to Weight: Bending, points 39
13
Thermal Diffusivity, mm2/s 3.3
11
Thermal Shock Resistance, points 52
52

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.1
0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
0
Nickel (Ni), % 0 to 0.050
0
Oxygen (O), % 0 to 0.15
0
Palladium (Pd), % 0.040 to 0.080
0
Titanium (Ti), % 92.5 to 95.5
0
Tungsten (W), % 0
92.5
Vanadium (V), % 2.0 to 3.0
0
Residuals, % 0
7.5