Grade 361 Molybdenum vs. SAE-AISI 4320 Steel
Grade 361 molybdenum belongs to the otherwise unclassified metals classification, while SAE-AISI 4320 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 361 molybdenum and the bottom bar is SAE-AISI 4320 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 310 | |
| 190 |
| Elongation at Break, % | 6.3 | |
| 21 to 29 |
| Poisson's Ratio | 0.31 | |
| 0.29 |
| Shear Modulus, GPa | 120 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 620 | |
| 570 to 790 |
| Tensile Strength: Yield (Proof), MPa | 530 | |
| 430 to 460 |
Thermal Properties
| Latent Heat of Fusion, J/g | 370 | |
| 250 |
| Specific Heat Capacity, J/kg-K | 250 | |
| 470 |
| Thermal Expansion, µm/m-K | 7.0 | |
| 11 |
Otherwise Unclassified Properties
| Density, g/cm3 | 10 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 28 | |
| 1.7 |
| Embodied Energy, MJ/kg | 330 | |
| 22 |
| Embodied Water, L/kg | 360 | |
| 52 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 37 | |
| 140 to 150 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 450 | |
| 480 to 560 |
| Stiffness to Weight: Axial, points | 17 | |
| 13 |
| Stiffness to Weight: Bending, points | 22 | |
| 24 |
| Strength to Weight: Axial, points | 17 | |
| 20 to 28 |
| Strength to Weight: Bending, points | 16 | |
| 19 to 24 |
| Thermal Shock Resistance, points | 21 | |
| 19 to 27 |
Alloy Composition
| Carbon (C), % | 0 to 0.010 | |
| 0.17 to 0.22 |
| Chromium (Cr), % | 0 | |
| 0.4 to 0.6 |
| Iron (Fe), % | 0 to 0.010 | |
| 95.8 to 97 |
| Manganese (Mn), % | 0 | |
| 0.45 to 0.65 |
| Molybdenum (Mo), % | 99.9 to 100 | |
| 0.2 to 0.3 |
| Nickel (Ni), % | 0 to 0.0050 | |
| 1.7 to 2.0 |
| Nitrogen (N), % | 0 to 0.0020 | |
| 0 |
| Oxygen (O), % | 0 to 0.0070 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 to 0.010 | |
| 0.15 to 0.35 |
| Sulfur (S), % | 0 | |
| 0 to 0.040 |