AISI 205 Stainless Steel vs. Nickel 718
AISI 205 stainless steel belongs to the iron alloys classification, while nickel 718 belongs to the nickel alloys. They have a modest 37% of their average alloy composition in common, which, by itself, doesn't mean much. There are 26 material properties with values for both materials. Properties with values for just one material (11, in this case) are not shown.
For each property being compared, the top bar is AISI 205 stainless steel and the bottom bar is nickel 718.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 190 |
| Elongation at Break, % | 11 to 51 | |
| 12 to 50 |
| Fatigue Strength, MPa | 410 to 640 | |
| 460 to 760 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 77 | |
| 75 |
| Shear Strength, MPa | 560 to 850 | |
| 660 to 950 |
| Tensile Strength: Ultimate (UTS), MPa | 800 to 1430 | |
| 930 to 1530 |
| Tensile Strength: Yield (Proof), MPa | 450 to 1100 | |
| 510 to 1330 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 310 |
| Maximum Temperature: Mechanical, °C | 880 | |
| 980 |
| Melting Completion (Liquidus), °C | 1380 | |
| 1340 |
| Melting Onset (Solidus), °C | 1340 | |
| 1260 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 450 |
| Thermal Expansion, µm/m-K | 18 | |
| 13 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 11 | |
| 75 |
| Density, g/cm3 | 7.6 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 13 |
| Embodied Energy, MJ/kg | 37 | |
| 190 |
| Embodied Water, L/kg | 150 | |
| 250 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 150 to 430 | |
| 140 to 390 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 510 to 3060 | |
| 660 to 4560 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 26 | |
| 23 |
| Strength to Weight: Axial, points | 29 to 52 | |
| 31 to 51 |
| Strength to Weight: Bending, points | 25 to 37 | |
| 25 to 35 |
| Thermal Shock Resistance, points | 16 to 29 | |
| 27 to 44 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0.2 to 0.8 |
| Boron (B), % | 0 | |
| 0 to 0.0060 |
| Carbon (C), % | 0.12 to 0.25 | |
| 0 to 0.080 |
| Chromium (Cr), % | 16.5 to 18.5 | |
| 17 to 21 |
| Cobalt (Co), % | 0 | |
| 0 to 1.0 |
| Copper (Cu), % | 0 | |
| 0 to 0.3 |
| Iron (Fe), % | 62.6 to 68.1 | |
| 11.1 to 24.6 |
| Manganese (Mn), % | 14 to 15.5 | |
| 0 to 0.35 |
| Molybdenum (Mo), % | 0 | |
| 2.8 to 3.3 |
| Nickel (Ni), % | 1.0 to 1.7 | |
| 50 to 55 |
| Niobium (Nb), % | 0 | |
| 4.8 to 5.5 |
| Nitrogen (N), % | 0.32 to 0.4 | |
| 0 |
| Phosphorus (P), % | 0 to 0.060 | |
| 0 to 0.015 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.35 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.015 |
| Titanium (Ti), % | 0 | |
| 0.65 to 1.2 |