Grade 5 Titanium vs. Type 1 Niobium
Grade 5 titanium belongs to the titanium alloys classification, while Type 1 niobium belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is grade 5 titanium and the bottom bar is Type 1 niobium.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 8.6 to 11 | |
| 29 |
| Poisson's Ratio | 0.32 | |
| 0.4 |
| Shear Modulus, GPa | 40 | |
| 38 |
| Tensile Strength: Ultimate (UTS), MPa | 1000 to 1190 | |
| 140 |
| Tensile Strength: Yield (Proof), MPa | 910 to 1110 | |
| 82 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 320 |
| Specific Heat Capacity, J/kg-K | 560 | |
| 270 |
| Thermal Conductivity, W/m-K | 6.8 | |
| 52 |
| Thermal Expansion, µm/m-K | 8.9 | |
| 7.3 |
Otherwise Unclassified Properties
| Density, g/cm3 | 4.4 | |
| 8.6 |
| Embodied Water, L/kg | 200 | |
| 160 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 110 | |
| 35 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 3980 to 5880 | |
| 32 |
| Stiffness to Weight: Axial, points | 13 | |
| 6.8 |
| Stiffness to Weight: Bending, points | 35 | |
| 18 |
| Strength to Weight: Axial, points | 62 to 75 | |
| 4.6 |
| Strength to Weight: Bending, points | 50 to 56 | |
| 7.1 |
| Thermal Diffusivity, mm2/s | 2.7 | |
| 23 |
| Thermal Shock Resistance, points | 76 to 91 | |
| 13 |
Alloy Composition
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| Aluminum (Al), % | 5.5 to 6.8 | |
| 0 |
| Carbon (C), % | 0 to 0.080 | |
| 0 to 0.010 |
| Hafnium (Hf), % | 0 | |
| 0 to 0.020 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 to 0.0015 |
| Iron (Fe), % | 0 to 0.4 | |
| 0 to 0.0050 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.010 |
| Nickel (Ni), % | 0 | |
| 0 to 0.0050 |
| Niobium (Nb), % | 0 | |
| 99.7 to 100 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 to 0.010 |
| Oxygen (O), % | 0 to 0.2 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 | |
| 0 to 0.0050 |
| Tantalum (Ta), % | 0 | |
| 0 to 0.1 |
| Titanium (Ti), % | 87.4 to 91 | |
| 0 to 0.020 |
| Tungsten (W), % | 0 | |
| 0 to 0.030 |
| Vanadium (V), % | 3.5 to 4.5 | |
| 0 |
| Yttrium (Y), % | 0 to 0.0050 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 0 to 0.020 |
| Residuals, % | 0 to 0.4 | |
| 0 |