AWS E383 vs. AWS E240
Both AWS E383 and AWS E240 are iron alloys. Both are furnished in the as-welded condition. They have 60% of their average alloy composition in common.
For each property being compared, the top bar is AWS E383 and the bottom bar is AWS E240.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 200 |
| Elongation at Break, % | 34 | |
| 17 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 80 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 580 | |
| 770 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 290 |
| Melting Completion (Liquidus), °C | 1420 | |
| 1390 |
| Melting Onset (Solidus), °C | 1370 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 480 |
| Thermal Conductivity, W/m-K | 12 | |
| 15 |
| Thermal Expansion, µm/m-K | 14 | |
| 15 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 37 | |
| 14 |
| Density, g/cm3 | 8.1 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 6.4 | |
| 3.0 |
| Embodied Energy, MJ/kg | 89 | |
| 42 |
| Embodied Water, L/kg | 240 | |
| 160 |
Common Calculations
| PREN (Pitting Resistance) | 40 | |
| 22 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 24 | |
| 25 |
| Strength to Weight: Axial, points | 20 | |
| 28 |
| Strength to Weight: Bending, points | 19 | |
| 24 |
| Thermal Diffusivity, mm2/s | 3.1 | |
| 3.9 |
| Thermal Shock Resistance, points | 15 | |
| 19 |
Alloy Composition
| Carbon (C), % | 0 to 0.030 | |
| 0 to 0.060 |
| Chromium (Cr), % | 26.5 to 29 | |
| 17 to 19 |
| Copper (Cu), % | 0.6 to 1.5 | |
| 0 to 0.75 |
| Iron (Fe), % | 28.8 to 39.2 | |
| 58.6 to 68.4 |
| Manganese (Mn), % | 0.5 to 2.5 | |
| 10.5 to 13.5 |
| Molybdenum (Mo), % | 3.2 to 4.2 | |
| 0 to 0.75 |
| Nickel (Ni), % | 30 to 33 | |
| 4.0 to 6.0 |
| Nitrogen (N), % | 0 | |
| 0.1 to 0.3 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.9 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 to 0.030 |