EN 2.4650 Nickel vs. Nickel 686
Both EN 2.4650 nickel and nickel 686 are nickel alloys. They have 77% of their average alloy composition in common.
For each property being compared, the top bar is EN 2.4650 nickel and the bottom bar is nickel 686.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 220 |
| Elongation at Break, % | 34 | |
| 51 |
| Fatigue Strength, MPa | 480 | |
| 410 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 80 | |
| 77 |
| Shear Strength, MPa | 730 | |
| 560 |
| Tensile Strength: Ultimate (UTS), MPa | 1090 | |
| 780 |
| Tensile Strength: Yield (Proof), MPa | 650 | |
| 350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 320 |
| Maximum Temperature: Mechanical, °C | 1010 | |
| 980 |
| Melting Completion (Liquidus), °C | 1400 | |
| 1380 |
| Melting Onset (Solidus), °C | 1350 | |
| 1340 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 420 |
| Thermal Conductivity, W/m-K | 12 | |
| 9.8 |
| Thermal Expansion, µm/m-K | 11 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.5 | |
| 1.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.6 | |
| 1.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 80 | |
| 70 |
| Density, g/cm3 | 8.5 | |
| 9.0 |
| Embodied Carbon, kg CO2/kg material | 10 | |
| 12 |
| Embodied Energy, MJ/kg | 140 | |
| 170 |
| Embodied Water, L/kg | 360 | |
| 300 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 320 | |
| 320 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1030 | |
| 280 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 23 | |
| 22 |
| Strength to Weight: Axial, points | 36 | |
| 24 |
| Strength to Weight: Bending, points | 28 | |
| 21 |
| Thermal Diffusivity, mm2/s | 3.1 | |
| 2.6 |
| Thermal Shock Resistance, points | 33 | |
| 21 |
Alloy Composition
| Aluminum (Al), % | 0.3 to 0.6 | |
| 0 |
| Boron (B), % | 0 to 0.0050 | |
| 0 |
| Carbon (C), % | 0.040 to 0.080 | |
| 0 to 0.010 |
| Chromium (Cr), % | 19 to 21 | |
| 19 to 23 |
| Cobalt (Co), % | 19 to 21 | |
| 0 |
| Copper (Cu), % | 0 to 0.2 | |
| 0 |
| Iron (Fe), % | 0 to 0.7 | |
| 0 to 5.0 |
| Manganese (Mn), % | 0 to 0.6 | |
| 0 to 0.75 |
| Molybdenum (Mo), % | 5.6 to 6.1 | |
| 15 to 17 |
| Nickel (Ni), % | 46.9 to 54.2 | |
| 49.5 to 63 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.080 |
| Sulfur (S), % | 0 to 0.0070 | |
| 0 to 0.020 |
| Titanium (Ti), % | 1.9 to 2.4 | |
| 0.020 to 0.25 |
| Tungsten (W), % | 0 | |
| 3.0 to 4.4 |