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Class 4 Tungsten vs. Titanium 4-4-2

Class 4 tungsten belongs to the otherwise unclassified metals classification, while titanium 4-4-2 belongs to the titanium alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, 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 titanium 4-4-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 270
110
Elongation at Break, % 2.3
10
Poisson's Ratio 0.28
0.32
Shear Modulus, GPa 110
42
Tensile Strength: Ultimate (UTS), MPa 790
1150 to 1250
Tensile Strength: Yield (Proof), MPa 580
1030 to 1080

Thermal Properties

Latent Heat of Fusion, J/g 170
410
Specific Heat Capacity, J/kg-K 130
540
Thermal Conductivity, W/m-K 30
6.7
Thermal Expansion, µm/m-K 4.5
8.6

Otherwise Unclassified Properties

Density, g/cm3 16
4.7
Embodied Carbon, kg CO2/kg material 24
30
Embodied Energy, MJ/kg 360
480
Embodied Water, L/kg 150
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 16
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 620
4700 to 5160
Stiffness to Weight: Axial, points 9.6
13
Stiffness to Weight: Bending, points 14
34
Strength to Weight: Axial, points 14
68 to 74
Strength to Weight: Bending, points 12
52 to 55
Thermal Diffusivity, mm2/s 15
2.6
Thermal Shock Resistance, points 46
86 to 93

Alloy Composition


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Aluminum (Al), % 0
3.0 to 5.0
Carbon (C), % 0
0 to 0.080
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0
0 to 0.2
Molybdenum (Mo), % 0
3.0 to 5.0
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.25
Silicon (Si), % 0
0.3 to 0.7
Tin (Sn), % 0
1.5 to 2.5
Titanium (Ti), % 0
85.8 to 92.2
Tungsten (W), % 97
0
Residuals, % 3.0
0 to 0.4