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