Grade 366 Molybdenum vs. ASTM A203 Steel
Grade 366 molybdenum belongs to the otherwise unclassified metals classification, while ASTM A203 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 ASTM A203 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 300 | |
| 190 |
| Elongation at Break, % | 2.2 | |
| 22 to 26 |
| Poisson's Ratio | 0.3 | |
| 0.29 |
| Shear Modulus, GPa | 120 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 580 | |
| 520 to 590 |
| Tensile Strength: Yield (Proof), MPa | 470 | |
| 290 to 390 |
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 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 27 | |
| 1.6 to 1.7 |
| Embodied Energy, MJ/kg | 340 | |
| 21 to 23 |
| Embodied Water, L/kg | 300 | |
| 50 to 52 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 12 | |
| 110 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 370 | |
| 230 to 410 |
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 18 | |
| 24 |
| Strength to Weight: Axial, points | 13 | |
| 18 to 21 |
| Strength to Weight: Bending, points | 13 | |
| 18 to 20 |
| Thermal Shock Resistance, points | 18 | |
| 15 to 17 |