Grade 366 Molybdenum vs. EN 1.7230 Steel
Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while EN 1.7230 steel belongs to the iron alloys. There are 20 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 grade 366 molybdenum and the bottom bar is EN 1.7230 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 300 | |
| 190 |
| Elongation at Break, % | 2.2 | |
| 11 to 12 |
| Poisson's Ratio | 0.3 | |
| 0.29 |
| Shear Modulus, GPa | 120 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 580 | |
| 720 to 910 |
| Tensile Strength: Yield (Proof), MPa | 470 | |
| 510 to 740 |
Thermal Properties
| Latent Heat of Fusion, J/g | 310 | |
| 250 |
| Specific Heat Capacity, J/kg-K | 210 | |
| 470 |
| Thermal Expansion, µm/m-K | 7.6 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 12 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 27 | |
| 1.5 |
| Embodied Energy, MJ/kg | 340 | |
| 20 |
| Embodied Water, L/kg | 300 | |
| 51 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 12 | |
| 79 to 97 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 370 | |
| 700 to 1460 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 18 | |
| 24 |
| Strength to Weight: Axial, points | 13 | |
| 26 to 32 |
| Strength to Weight: Bending, points | 13 | |
| 23 to 27 |
| Thermal Shock Resistance, points | 18 | |
| 21 to 27 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0.3 to 0.37 |
| Chromium (Cr), % | 0 | |
| 0.8 to 1.2 |
| Iron (Fe), % | 0 to 0.010 | |
| 96.7 to 98.3 |
| Manganese (Mn), % | 0 | |
| 0.5 to 0.8 |
| Molybdenum (Mo), % | 66.9 to 73 | |
| 0.15 to 0.3 |
| Nickel (Ni), % | 0 to 0.0020 | |
| 0 |
| Nitrogen (N), % | 0 to 0.0020 | |
| 0 |
| Oxygen (O), % | 0 to 0.0025 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.010 | |
| 0 to 0.6 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tungsten (W), % | 27 to 33 | |
| 0 |