Nickel 684 vs. EN 1.4596 Stainless Steel
Nickel 684 belongs to the nickel alloys classification, while EN 1.4596 stainless steel belongs to the iron alloys. They have a modest 27% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.
For each property being compared, the top bar is nickel 684 and the bottom bar is EN 1.4596 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 76 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 1190 | |
| 1030 to 1600 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 280 |
| Maximum Temperature: Mechanical, °C | 1000 | |
| 790 |
| Melting Completion (Liquidus), °C | 1370 | |
| 1450 |
| Melting Onset (Solidus), °C | 1320 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Expansion, µm/m-K | 13 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 75 | |
| 15 |
| Density, g/cm3 | 8.3 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 10 | |
| 3.5 |
| Embodied Energy, MJ/kg | 140 | |
| 48 |
| Embodied Water, L/kg | 360 | |
| 130 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 23 | |
| 25 |
| Strength to Weight: Axial, points | 40 | |
| 36 to 56 |
| Strength to Weight: Bending, points | 30 | |
| 29 to 39 |
| Thermal Shock Resistance, points | 34 | |
| 35 to 54 |
Alloy Composition
| Aluminum (Al), % | 2.5 to 3.3 | |
| 0.8 to 1.1 |
| Boron (B), % | 0.0030 to 0.010 | |
| 0 |
| Carbon (C), % | 0 to 0.15 | |
| 0 to 0.015 |
| Chromium (Cr), % | 15 to 20 | |
| 11.5 to 12.5 |
| Cobalt (Co), % | 13 to 20 | |
| 0 |
| Copper (Cu), % | 0 to 0.15 | |
| 0 |
| Iron (Fe), % | 0 to 4.0 | |
| 73.4 to 76.4 |
| Manganese (Mn), % | 0 to 0.75 | |
| 0 to 0.1 |
| Molybdenum (Mo), % | 3.0 to 5.0 | |
| 1.9 to 2.2 |
| Nickel (Ni), % | 42.7 to 64 | |
| 9.2 to 10.2 |
| Nitrogen (N), % | 0 | |
| 0 to 0.020 |
| Phosphorus (P), % | 0 to 0.015 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 to 0.75 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.0050 |
| Titanium (Ti), % | 2.5 to 3.3 | |
| 0.28 to 0.4 |