S17400 Stainless Steel vs. Grade 366 Molybdenum
S17400 stainless steel belongs to the iron alloys classification, while grade 366 molybdenum belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (16, in this case) are not shown.
For each property being compared, the top bar is S17400 stainless steel and the bottom bar is grade 366 molybdenum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 300 |
| Elongation at Break, % | 11 to 21 | |
| 2.2 |
| Poisson's Ratio | 0.28 | |
| 0.3 |
| Shear Modulus, GPa | 75 | |
| 120 |
| Tensile Strength: Ultimate (UTS), MPa | 910 to 1390 | |
| 580 |
| Tensile Strength: Yield (Proof), MPa | 580 to 1250 | |
| 470 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 310 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 210 |
| Thermal Expansion, µm/m-K | 11 | |
| 7.6 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 | |
| 12 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 27 |
| Embodied Energy, MJ/kg | 39 | |
| 340 |
| Embodied Water, L/kg | 130 | |
| 300 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 140 to 160 | |
| 12 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 880 to 4060 | |
| 370 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 18 |
| Strength to Weight: Axial, points | 32 to 49 | |
| 13 |
| Strength to Weight: Bending, points | 27 to 35 | |
| 13 |
| Thermal Shock Resistance, points | 30 to 46 | |
| 18 |
Alloy Composition
| Carbon (C), % | 0 to 0.070 | |
| 0 to 0.030 |
| Chromium (Cr), % | 15 to 17 | |
| 0 |
| Copper (Cu), % | 3.0 to 5.0 | |
| 0 |
| Iron (Fe), % | 70.4 to 78.9 | |
| 0 to 0.010 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 |
| Molybdenum (Mo), % | 0 | |
| 66.9 to 73 |
| Nickel (Ni), % | 3.0 to 5.0 | |
| 0 to 0.0020 |
| Niobium (Nb), % | 0.15 to 0.45 | |
| 0 |
| Nitrogen (N), % | 0 | |
| 0 to 0.0020 |
| Oxygen (O), % | 0 | |
| 0 to 0.0025 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 0.010 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Tungsten (W), % | 0 | |
| 27 to 33 |