EN 1.7701 Steel vs. Grade 366 Molybdenum
EN 1.7701 steel belongs to the iron alloys classification, while grade 366 molybdenum belongs to the otherwise unclassified metals. There are 16 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is EN 1.7701 steel and the bottom bar is grade 366 molybdenum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 300 |
| Poisson's Ratio | 0.29 | |
| 0.3 |
| Shear Modulus, GPa | 73 | |
| 120 |
| Tensile Strength: Ultimate (UTS), MPa | 670 to 2010 | |
| 580 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 310 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 210 |
| Thermal Expansion, µm/m-K | 13 | |
| 7.6 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.8 | |
| 12 |
| Embodied Carbon, kg CO2/kg material | 1.9 | |
| 27 |
| Embodied Energy, MJ/kg | 26 | |
| 340 |
| Embodied Water, L/kg | 52 | |
| 300 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 18 |
| Strength to Weight: Axial, points | 24 to 71 | |
| 13 |
| Strength to Weight: Bending, points | 22 to 45 | |
| 13 |
| Thermal Shock Resistance, points | 20 to 59 | |
| 18 |
Alloy Composition
| Carbon (C), % | 0.48 to 0.56 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0.9 to 1.2 | |
| 0 |
| Iron (Fe), % | 96.2 to 97.7 | |
| 0 to 0.010 |
| Manganese (Mn), % | 0.7 to 1.1 | |
| 0 |
| Molybdenum (Mo), % | 0.15 to 0.3 | |
| 66.9 to 73 |
| Nickel (Ni), % | 0 | |
| 0 to 0.0020 |
| Nitrogen (N), % | 0 | |
| 0 to 0.0020 |
| Oxygen (O), % | 0 | |
| 0 to 0.0025 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.010 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 |
| Tungsten (W), % | 0 | |
| 27 to 33 |
| Vanadium (V), % | 0.1 to 0.2 | |
| 0 |