EN 1.4923 Stainless Steel vs. Nickel 718
EN 1.4923 stainless steel belongs to the iron alloys classification, while nickel 718 belongs to the nickel alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 31 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is EN 1.4923 stainless steel and the bottom bar is nickel 718.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 12 to 21 | |
| 12 to 50 |
| Fatigue Strength, MPa | 300 to 440 | |
| 460 to 760 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Reduction in Area, % | 40 to 46 | |
| 34 to 64 |
| Shear Modulus, GPa | 76 | |
| 75 |
| Shear Strength, MPa | 540 to 590 | |
| 660 to 950 |
| Tensile Strength: Ultimate (UTS), MPa | 870 to 980 | |
| 930 to 1530 |
| Tensile Strength: Yield (Proof), MPa | 470 to 780 | |
| 510 to 1330 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 310 |
| Maximum Temperature: Mechanical, °C | 740 | |
| 980 |
| Melting Completion (Liquidus), °C | 1450 | |
| 1340 |
| Melting Onset (Solidus), °C | 1410 | |
| 1260 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 450 |
| Thermal Conductivity, W/m-K | 24 | |
| 11 |
| Thermal Expansion, µm/m-K | 11 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 2.9 | |
| 1.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.3 | |
| 1.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 8.0 | |
| 75 |
| Density, g/cm3 | 7.8 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.9 | |
| 13 |
| Embodied Energy, MJ/kg | 41 | |
| 190 |
| Embodied Water, L/kg | 100 | |
| 250 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 150 | |
| 140 to 390 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 570 to 1580 | |
| 660 to 4560 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 23 |
| Strength to Weight: Axial, points | 31 to 35 | |
| 31 to 51 |
| Strength to Weight: Bending, points | 26 to 28 | |
| 25 to 35 |
| Thermal Diffusivity, mm2/s | 6.5 | |
| 3.0 |
| Thermal Shock Resistance, points | 30 to 34 | |
| 27 to 44 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0.2 to 0.8 |
| Boron (B), % | 0 | |
| 0 to 0.0060 |
| Carbon (C), % | 0.18 to 0.24 | |
| 0 to 0.080 |
| Chromium (Cr), % | 11 to 12.5 | |
| 17 to 21 |
| Cobalt (Co), % | 0 | |
| 0 to 1.0 |
| Copper (Cu), % | 0 | |
| 0 to 0.3 |
| Iron (Fe), % | 83.5 to 87.1 | |
| 11.1 to 24.6 |
| Manganese (Mn), % | 0.4 to 0.9 | |
| 0 to 0.35 |
| Molybdenum (Mo), % | 0.8 to 1.2 | |
| 2.8 to 3.3 |
| Nickel (Ni), % | 0.3 to 0.8 | |
| 50 to 55 |
| Niobium (Nb), % | 0 | |
| 4.8 to 5.5 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 0.35 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.015 |
| Titanium (Ti), % | 0 | |
| 0.65 to 1.2 |
| Vanadium (V), % | 0.25 to 0.35 | |
| 0 |