Nickel 725 vs. Nickel 690
Both nickel 725 and nickel 690 are nickel alloys. They have 87% of their average alloy composition in common. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is nickel 725 and the bottom bar is nickel 690.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 34 | |
| 3.4 to 34 |
| Fatigue Strength, MPa | 260 | |
| 180 to 300 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 78 | |
| 79 |
| Shear Strength, MPa | 580 | |
| 420 to 570 |
| Tensile Strength: Ultimate (UTS), MPa | 860 | |
| 640 to 990 |
| Tensile Strength: Yield (Proof), MPa | 350 | |
| 250 to 760 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 320 |
| Maximum Temperature: Mechanical, °C | 980 | |
| 1010 |
| Melting Completion (Liquidus), °C | 1340 | |
| 1380 |
| Melting Onset (Solidus), °C | 1270 | |
| 1340 |
| Specific Heat Capacity, J/kg-K | 440 | |
| 470 |
| Thermal Expansion, µm/m-K | 13 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.5 | |
| 1.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.6 | |
| 1.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 75 | |
| 50 |
| Density, g/cm3 | 8.5 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 13 | |
| 8.2 |
| Embodied Energy, MJ/kg | 190 | |
| 120 |
| Embodied Water, L/kg | 270 | |
| 290 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 240 | |
| 31 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 300 | |
| 160 to 1440 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 |
| Strength to Weight: Axial, points | 28 | |
| 21 to 33 |
| Strength to Weight: Bending, points | 24 | |
| 20 to 27 |
| Thermal Shock Resistance, points | 23 | |
| 16 to 25 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.35 | |
| 0 |
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.050 |
| Chromium (Cr), % | 19 to 22.5 | |
| 27 to 31 |
| Copper (Cu), % | 0 | |
| 0 to 0.5 |
| Iron (Fe), % | 2.3 to 15.3 | |
| 7.0 to 11 |
| Manganese (Mn), % | 0 to 0.35 | |
| 0 to 0.5 |
| Molybdenum (Mo), % | 7.0 to 9.5 | |
| 0 |
| Nickel (Ni), % | 55 to 59 | |
| 58 to 66 |
| Niobium (Nb), % | 2.8 to 4.0 | |
| 0 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 |
| Silicon (Si), % | 0 to 0.2 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.010 | |
| 0 to 0.015 |
| Titanium (Ti), % | 1.0 to 1.7 | |
| 0 |