S17700 Stainless Steel vs. Grade CW2M Nickel
S17700 stainless steel belongs to the iron alloys classification, while grade CW2M nickel belongs to the nickel alloys. They have a modest 25% of their average alloy composition in common, which, by itself, doesn't mean much. There are 25 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is S17700 stainless steel and the bottom bar is grade CW2M nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 210 |
| Elongation at Break, % | 1.0 to 23 | |
| 23 |
| Fatigue Strength, MPa | 290 to 560 | |
| 190 |
| Poisson's Ratio | 0.28 | |
| 0.29 |
| Shear Modulus, GPa | 76 | |
| 83 |
| Tensile Strength: Ultimate (UTS), MPa | 1180 to 1650 | |
| 560 |
| Tensile Strength: Yield (Proof), MPa | 430 to 1210 | |
| 310 |
Thermal Properties
| Latent Heat of Fusion, J/g | 290 | |
| 330 |
| Maximum Temperature: Mechanical, °C | 890 | |
| 960 |
| Melting Completion (Liquidus), °C | 1440 | |
| 1520 |
| Melting Onset (Solidus), °C | 1400 | |
| 1460 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 430 |
| Thermal Expansion, µm/m-K | 11 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 70 |
| Density, g/cm3 | 7.7 | |
| 8.8 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 12 |
| Embodied Energy, MJ/kg | 40 | |
| 170 |
| Embodied Water, L/kg | 150 | |
| 290 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 15 to 210 | |
| 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 460 to 3750 | |
| 220 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 25 | |
| 23 |
| Strength to Weight: Axial, points | 42 to 59 | |
| 18 |
| Strength to Weight: Bending, points | 32 to 40 | |
| 17 |
| Thermal Shock Resistance, points | 39 to 54 | |
| 16 |
Alloy Composition
| Aluminum (Al), % | 0.75 to 1.5 | |
| 0 |
| Carbon (C), % | 0 to 0.090 | |
| 0 to 0.020 |
| Chromium (Cr), % | 16 to 18 | |
| 15 to 17.5 |
| Iron (Fe), % | 70.5 to 76.8 | |
| 0 to 2.0 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 15 to 17.5 |
| Nickel (Ni), % | 6.5 to 7.8 | |
| 60.1 to 70 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.8 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |
| Tungsten (W), % | 0 | |
| 0 to 1.0 |