AWS E309LMo vs. S31730 Stainless Steel
Both AWS E309LMo and S31730 stainless steel are iron alloys. They have a moderately high 92% of their average alloy composition in common. There are 21 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is AWS E309LMo and the bottom bar is S31730 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 200 |
| Elongation at Break, % | 34 | |
| 40 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 79 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 580 | |
| 540 |
Thermal Properties
| Latent Heat of Fusion, J/g | 300 | |
| 290 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1430 |
| Melting Onset (Solidus), °C | 1390 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 470 |
| Thermal Expansion, µm/m-K | 14 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 22 | |
| 24 |
| Density, g/cm3 | 7.9 | |
| 8.0 |
| Embodied Carbon, kg CO2/kg material | 4.2 | |
| 4.6 |
| Embodied Energy, MJ/kg | 59 | |
| 63 |
| Embodied Water, L/kg | 180 | |
| 180 |
Common Calculations
| PREN (Pitting Resistance) | 32 | |
| 30 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 24 |
| Strength to Weight: Axial, points | 21 | |
| 19 |
| Strength to Weight: Bending, points | 20 | |
| 18 |
| Thermal Shock Resistance, points | 15 | |
| 12 |
Alloy Composition
| Carbon (C), % | 0 to 0.040 | |
| 0 to 0.030 |
| Chromium (Cr), % | 22 to 25 | |
| 17 to 19 |
| Copper (Cu), % | 0 to 0.75 | |
| 4.0 to 5.0 |
| Iron (Fe), % | 53.6 to 63.5 | |
| 52.4 to 61 |
| Manganese (Mn), % | 0.5 to 2.5 | |
| 0 to 2.0 |
| Molybdenum (Mo), % | 2.0 to 3.0 | |
| 3.0 to 4.0 |
| Nickel (Ni), % | 12 to 14 | |
| 15 to 16.5 |
| Nitrogen (N), % | 0 | |
| 0 to 0.045 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.010 |