Grade 366 Molybdenum vs. EN 1.0303 Steel
Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while EN 1.0303 steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is grade 366 molybdenum and the bottom bar is EN 1.0303 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 300 | |
| 190 |
| Elongation at Break, % | 2.2 | |
| 12 to 25 |
| Poisson's Ratio | 0.3 | |
| 0.29 |
| Shear Modulus, GPa | 120 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 580 | |
| 290 to 410 |
| Tensile Strength: Yield (Proof), MPa | 470 | |
| 200 to 320 |
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 | |
| 12 |
Otherwise Unclassified Properties
| Density, g/cm3 | 12 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 27 | |
| 1.4 |
| Embodied Energy, MJ/kg | 340 | |
| 18 |
| Embodied Water, L/kg | 300 | |
| 46 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 12 | |
| 30 to 94 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 370 | |
| 110 to 270 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 18 | |
| 24 |
| Strength to Weight: Axial, points | 13 | |
| 10 to 15 |
| Strength to Weight: Bending, points | 13 | |
| 12 to 16 |
| Thermal Shock Resistance, points | 18 | |
| 9.2 to 13 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0.020 to 0.060 |
| Carbon (C), % | 0 to 0.030 | |
| 0.020 to 0.060 |
| Iron (Fe), % | 0 to 0.010 | |
| 99.335 to 99.71 |
| Manganese (Mn), % | 0 | |
| 0.25 to 0.4 |
| Molybdenum (Mo), % | 66.9 to 73 | |
| 0 |
| 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 0.020 |
| Silicon (Si), % | 0 to 0.010 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 | |
| 0 to 0.025 |
| Tungsten (W), % | 27 to 33 | |
| 0 |