R05255 Alloy vs. Nickel 690
R05255 alloy belongs to the otherwise unclassified metals classification, while nickel 690 belongs to the nickel alloys. There are 20 material properties with values for both materials. Properties with values for just one material (11, 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 R05255 alloy and the bottom bar is nickel 690.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 20 | |
| 3.4 to 34 |
| Poisson's Ratio | 0.34 | |
| 0.28 |
| Shear Modulus, GPa | 70 | |
| 79 |
| Tensile Strength: Ultimate (UTS), MPa | 540 | |
| 640 to 990 |
| Tensile Strength: Yield (Proof), MPa | 450 | |
| 250 to 760 |
Thermal Properties
| Latent Heat of Fusion, J/g | 140 | |
| 320 |
| Specific Heat Capacity, J/kg-K | 140 | |
| 470 |
| Thermal Conductivity, W/m-K | 59 | |
| 14 |
| Thermal Expansion, µm/m-K | 6.6 | |
| 14 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 8.3 |
| Embodied Water, L/kg | 630 | |
| 290 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 | |
| 31 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 530 | |
| 160 to 1440 |
| Stiffness to Weight: Axial, points | 6.3 | |
| 13 |
| Stiffness to Weight: Bending, points | 11 | |
| 24 |
| Strength to Weight: Axial, points | 9.1 | |
| 21 to 33 |
| Strength to Weight: Bending, points | 8.9 | |
| 20 to 27 |
| Thermal Diffusivity, mm2/s | 25 | |
| 3.5 |
| Thermal Shock Resistance, points | 31 | |
| 16 to 25 |
Alloy Composition
| Carbon (C), % | 0 to 0.010 | |
| 0 to 0.050 |
| Chromium (Cr), % | 0 | |
| 27 to 31 |
| Copper (Cu), % | 0 | |
| 0 to 0.5 |
| Hydrogen (H), % | 0 to 0.0015 | |
| 0 |
| Iron (Fe), % | 0 to 0.010 | |
| 7.0 to 11 |
| Manganese (Mn), % | 0 | |
| 0 to 0.5 |
| Molybdenum (Mo), % | 0 to 0.020 | |
| 0 |
| Nickel (Ni), % | 0 to 0.010 | |
| 58 to 66 |
| Niobium (Nb), % | 0 to 0.5 | |
| 0 |
| Nitrogen (N), % | 0 to 0.010 | |
| 0 |
| Oxygen (O), % | 0 to 0.015 | |
| 0 |
| Silicon (Si), % | 0 to 0.0050 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 | |
| 0 to 0.015 |
| Tantalum (Ta), % | 95.9 to 98 | |
| 0 |
| Titanium (Ti), % | 0 to 0.010 | |
| 0 |
| Tungsten (W), % | 2.0 to 3.5 | |
| 0 |