SAE-AISI 1140 Steel vs. AWS E409Nb
Both SAE-AISI 1140 steel and AWS E409Nb are iron alloys. They have 85% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is SAE-AISI 1140 steel and the bottom bar is AWS E409Nb.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 14 to 18 | |
| 23 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 72 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 600 to 700 | |
| 500 |
| Tensile Strength: Yield (Proof), MPa | 340 to 570 | |
| 380 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 280 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1460 |
| Melting Onset (Solidus), °C | 1420 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 51 | |
| 25 |
| Thermal Expansion, µm/m-K | 13 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.0 | |
| 2.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.1 | |
| 3.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 1.8 | |
| 13 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.4 | |
| 2.9 |
| Embodied Energy, MJ/kg | 18 | |
| 42 |
| Embodied Water, L/kg | 46 | |
| 100 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 89 to 93 | |
| 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 310 to 870 | |
| 380 |
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 21 to 25 | |
| 18 |
| Strength to Weight: Bending, points | 20 to 22 | |
| 18 |
| Thermal Diffusivity, mm2/s | 14 | |
| 6.8 |
| Thermal Shock Resistance, points | 18 to 21 | |
| 14 |
Alloy Composition
| Carbon (C), % | 0.37 to 0.44 | |
| 0 to 0.12 |
| Chromium (Cr), % | 0 | |
| 11 to 14 |
| Copper (Cu), % | 0 | |
| 0 to 0.75 |
| Iron (Fe), % | 98.4 to 98.9 | |
| 80.2 to 88.5 |
| Manganese (Mn), % | 0.7 to 1.0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.75 |
| Nickel (Ni), % | 0 | |
| 0 to 0.6 |
| Niobium (Nb), % | 0 | |
| 0.5 to 1.5 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0.080 to 0.13 | |
| 0 to 0.030 |