R05240 Alloy vs. R05252 Alloy
Both R05240 alloy and R05252 alloy are otherwise unclassified metals. Both are furnished in the annealed condition. They have 62% of their average alloy composition in common.
For each property being compared, the top bar is R05240 alloy and the bottom bar is R05252 alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 150 | |
| 200 |
| Elongation at Break, % | 25 | |
| 23 |
| Poisson's Ratio | 0.36 | |
| 0.33 |
| Shear Modulus, GPa | 57 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 270 | |
| 310 |
| Tensile Strength: Yield (Proof), MPa | 170 | |
| 220 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 140 |
| Specific Heat Capacity, J/kg-K | 190 | |
| 140 |
| Thermal Expansion, µm/m-K | 6.8 | |
| 6.7 |
Otherwise Unclassified Properties
| Density, g/cm3 | 14 | |
| 17 |
| Embodied Water, L/kg | 460 | |
| 600 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 59 | |
| 63 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 90 | |
| 120 |
| Stiffness to Weight: Axial, points | 6.3 | |
| 6.5 |
| Stiffness to Weight: Bending, points | 13 | |
| 12 |
| Strength to Weight: Axial, points | 5.4 | |
| 5.2 |
| Strength to Weight: Bending, points | 6.8 | |
| 6.1 |
| Thermal Shock Resistance, points | 18 | |
| 17 |
Alloy Composition
| Carbon (C), % | 0 to 0.010 | |
| 0 to 0.010 |
| Hydrogen (H), % | 0 to 0.0015 | |
| 0 to 0.0015 |
| Iron (Fe), % | 0 to 0.010 | |
| 0 to 0.010 |
| Molybdenum (Mo), % | 0 to 0.020 | |
| 0 to 0.020 |
| Nickel (Ni), % | 0 to 0.010 | |
| 0 to 0.010 |
| Niobium (Nb), % | 35 to 42 | |
| 0 to 0.1 |
| Nitrogen (N), % | 0 to 0.010 | |
| 0 to 0.010 |
| Oxygen (O), % | 0 to 0.020 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 0.0050 | |
| 0 to 0.0050 |
| Tantalum (Ta), % | 57.9 to 65 | |
| 88.8 to 91 |
| Titanium (Ti), % | 0 to 0.010 | |
| 0 to 0.010 |
| Tungsten (W), % | 0 to 0.050 | |
| 9.0 to 11 |