Type 4 Niobium vs. C17300 Copper
Type 4 niobium belongs to the otherwise unclassified metals classification, while C17300 copper belongs to the copper alloys. There are 20 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is Type 4 niobium and the bottom bar is C17300 copper.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 120 |
| Elongation at Break, % | 23 | |
| 3.0 to 23 |
| Poisson's Ratio | 0.4 | |
| 0.33 |
| Shear Modulus, GPa | 38 | |
| 45 |
| Tensile Strength: Ultimate (UTS), MPa | 220 | |
| 500 to 1380 |
| Tensile Strength: Yield (Proof), MPa | 140 | |
| 160 to 1200 |
Thermal Properties
| Latent Heat of Fusion, J/g | 310 | |
| 230 |
| Specific Heat Capacity, J/kg-K | 270 | |
| 380 |
| Thermal Conductivity, W/m-K | 42 | |
| 110 |
| Thermal Expansion, µm/m-K | 7.3 | |
| 17 |
Otherwise Unclassified Properties
| Density, g/cm3 | 8.6 | |
| 8.8 |
| Embodied Water, L/kg | 160 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 44 | |
| 40 to 88 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 93 | |
| 110 to 5410 |
| Stiffness to Weight: Axial, points | 6.8 | |
| 7.6 |
| Stiffness to Weight: Bending, points | 18 | |
| 19 |
| Strength to Weight: Axial, points | 7.2 | |
| 16 to 44 |
| Strength to Weight: Bending, points | 9.5 | |
| 16 to 31 |
| Thermal Diffusivity, mm2/s | 18 | |
| 32 |
| Thermal Shock Resistance, points | 21 | |
| 17 to 48 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0 to 0.2 |
| Beryllium (Be), % | 0 | |
| 1.8 to 2.0 |
| Carbon (C), % | 0 to 0.010 | |
| 0 |
| Copper (Cu), % | 0 | |
| 95.5 to 97.8 |
| Hafnium (Hf), % | 0 to 0.020 | |
| 0 |
| Hydrogen (H), % | 0 to 0.0015 | |
| 0 |
| Iron (Fe), % | 0 to 0.010 | |
| 0 to 0.4 |
| Lead (Pb), % | 0 | |
| 0.2 to 0.6 |
| Molybdenum (Mo), % | 0 to 0.050 | |
| 0 |
| Nickel (Ni), % | 0 to 0.0050 | |
| 0.2 to 0.6 |
| Niobium (Nb), % | 98.1 to 99.2 | |
| 0 |
| Nitrogen (N), % | 0 to 0.010 | |
| 0 |
| Oxygen (O), % | 0 to 0.025 | |
| 0 |
| Silicon (Si), % | 0 to 0.0050 | |
| 0 to 0.2 |
| Tantalum (Ta), % | 0 to 0.5 | |
| 0 |
| Titanium (Ti), % | 0 to 0.020 | |
| 0 |
| Tungsten (W), % | 0 to 0.050 | |
| 0 |
| Zirconium (Zr), % | 0.8 to 1.2 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.5 |