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Titanium 15-3-3-3 vs. Type 2 Niobium

Titanium 15-3-3-3 belongs to the titanium alloys classification, while Type 2 niobium belongs to the otherwise unclassified metals. There are 19 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is titanium 15-3-3-3 and the bottom bar is Type 2 niobium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 5.7 to 8.0
29
Poisson's Ratio 0.33
0.4
Shear Modulus, GPa 39
38
Tensile Strength: Ultimate (UTS), MPa 1120 to 1390
140
Tensile Strength: Yield (Proof), MPa 1100 to 1340
82

Thermal Properties

Latent Heat of Fusion, J/g 390
320
Specific Heat Capacity, J/kg-K 520
270
Thermal Conductivity, W/m-K 8.1
52
Thermal Expansion, µm/m-K 9.8
7.3

Otherwise Unclassified Properties

Density, g/cm3 4.8
8.6
Embodied Water, L/kg 260
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 78 to 89
35
Stiffness to Weight: Axial, points 12
6.8
Stiffness to Weight: Bending, points 32
18
Strength to Weight: Axial, points 64 to 80
4.6
Strength to Weight: Bending, points 50 to 57
7.1
Thermal Diffusivity, mm2/s 3.2
23
Thermal Shock Resistance, points 79 to 98
13

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.050
0 to 0.010
Chromium (Cr), % 2.5 to 3.5
0
Hafnium (Hf), % 0
0 to 0.020
Hydrogen (H), % 0 to 0.015
0 to 0.0015
Iron (Fe), % 0 to 0.25
0 to 0.010
Molybdenum (Mo), % 0
0 to 0.020
Nickel (Ni), % 0
0 to 0.0050
Niobium (Nb), % 0
99.5 to 100
Nitrogen (N), % 0 to 0.050
0 to 0.010
Oxygen (O), % 0 to 0.13
0 to 0.025
Silicon (Si), % 0
0 to 0.0050
Tantalum (Ta), % 0
0 to 0.3
Tin (Sn), % 2.5 to 3.5
0
Titanium (Ti), % 72.6 to 78.5
0 to 0.030
Tungsten (W), % 0
0 to 0.050
Vanadium (V), % 14 to 16
0
Zirconium (Zr), % 0
0 to 0.020
Residuals, % 0 to 0.4
0