SAE-AISI A8 Steel vs. Grade 360 Molybdenum
SAE-AISI A8 steel belongs to the iron alloys classification, while grade 360 molybdenum belongs to the otherwise unclassified metals. There are 16 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 SAE-AISI A8 steel and the bottom bar is grade 360 molybdenum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 310 |
| Poisson's Ratio | 0.29 | |
| 0.31 |
| Shear Modulus, GPa | 74 | |
| 120 |
| Tensile Strength: Ultimate (UTS), MPa | 700 to 1920 | |
| 430 to 620 |
Thermal Properties
| Latent Heat of Fusion, J/g | 270 | |
| 370 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 250 |
| Thermal Expansion, µm/m-K | 12 | |
| 7.0 |
Otherwise Unclassified Properties
| Density, g/cm3 | 7.9 | |
| 10 |
| Embodied Carbon, kg CO2/kg material | 2.3 | |
| 28 |
| Embodied Energy, MJ/kg | 31 | |
| 330 |
| Embodied Water, L/kg | 73 | |
| 360 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 17 |
| Stiffness to Weight: Bending, points | 24 | |
| 22 |
| Strength to Weight: Axial, points | 25 to 68 | |
| 12 to 17 |
| Strength to Weight: Bending, points | 22 to 44 | |
| 12 to 16 |
| Thermal Shock Resistance, points | 22 to 62 | |
| 14 to 21 |
Alloy Composition
| Carbon (C), % | 0.5 to 0.6 | |
| 0 to 0.030 |
| Chromium (Cr), % | 4.8 to 5.5 | |
| 0 |
| Copper (Cu), % | 0 to 0.25 | |
| 0 |
| Iron (Fe), % | 88.5 to 91.9 | |
| 0 to 0.010 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0 |
| Molybdenum (Mo), % | 1.2 to 1.7 | |
| 99.9 to 100 |
| Nickel (Ni), % | 0 to 0.3 | |
| 0 to 0.0020 |
| Nitrogen (N), % | 0 | |
| 0 to 0.0020 |
| Oxygen (O), % | 0 | |
| 0 to 0.0015 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 |
| Silicon (Si), % | 0.75 to 1.1 | |
| 0 to 0.010 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 |
| Tungsten (W), % | 1.0 to 1.5 | |
| 0 |