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Class 3 Tungsten vs. AWS ERTi-2

Class 3 tungsten belongs to the otherwise unclassified metals classification, while AWS ERTi-2 belongs to the titanium alloys. There are 24 material properties with values for both materials. Properties with values for just one material (6, 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 AWS ERTi-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
110
Elongation at Break, % 3.4
20
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 100
40
Tensile Strength: Ultimate (UTS), MPa 830
340
Tensile Strength: Yield (Proof), MPa 580
280

Thermal Properties

Latent Heat of Fusion, J/g 170
420
Specific Heat Capacity, J/kg-K 120
540
Thermal Conductivity, W/m-K 30
21
Thermal Expansion, µm/m-K 4.5
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 15
3.6
Electrical Conductivity: Equal Weight (Specific), % IACS 8.5
7.1

Otherwise Unclassified Properties

Density, g/cm3 15
4.5
Embodied Carbon, kg CO2/kg material 23
31
Embodied Energy, MJ/kg 360
510
Embodied Water, L/kg 150
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 25
64
Resilience: Unit (Modulus of Resilience), kJ/m3 630
360
Stiffness to Weight: Axial, points 9.6
13
Stiffness to Weight: Bending, points 14
35
Strength to Weight: Axial, points 15
21
Strength to Weight: Bending, points 13
24
Thermal Diffusivity, mm2/s 15
8.7
Thermal Shock Resistance, points 49
27

Alloy Composition

Carbon (C), % 0
0 to 0.030
Hydrogen (H), % 0
0 to 0.0080
Iron (Fe), % 0
0 to 0.12
Nitrogen (N), % 0
0 to 0.015
Oxygen (O), % 0
0.080 to 0.16
Titanium (Ti), % 0
99.667 to 99.92
Tungsten (W), % 95
0
Residuals, % 5.0
0