EN 1.7108 Steel vs. AWS E33-31
Both EN 1.7108 steel and AWS E33-31 are iron alloys. They have a modest 31% of their average alloy composition in common, which, by itself, doesn't mean much. There are 19 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is EN 1.7108 steel and the bottom bar is AWS E33-31.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 210 |
| Poisson's Ratio | 0.29 | |
| 0.27 |
| Shear Modulus, GPa | 72 | |
| 81 |
| Tensile Strength: Ultimate (UTS), MPa | 670 to 2070 | |
| 810 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 320 |
| Melting Completion (Liquidus), °C | 1430 | |
| 1380 |
| Melting Onset (Solidus), °C | 1390 | |
| 1330 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Expansion, µm/m-K | 13 | |
| 14 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.1 | |
| 36 |
| Density, g/cm3 | 7.7 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 1.5 | |
| 6.0 |
| Embodied Energy, MJ/kg | 20 | |
| 86 |
| Embodied Water, L/kg | 47 | |
| 260 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 24 to 75 | |
| 28 |
| Strength to Weight: Bending, points | 22 to 47 | |
| 24 |
| Thermal Shock Resistance, points | 20 to 63 | |
| 19 |
Alloy Composition
| Carbon (C), % | 0.57 to 0.65 | |
| 0 to 0.030 |
| Chromium (Cr), % | 0.2 to 0.45 | |
| 31 to 35 |
| Copper (Cu), % | 0 | |
| 0.4 to 0.8 |
| Iron (Fe), % | 95.9 to 96.9 | |
| 24.7 to 34.8 |
| Manganese (Mn), % | 0.7 to 1.0 | |
| 2.5 to 4.0 |
| Molybdenum (Mo), % | 0 | |
| 1.0 to 2.0 |
| Nickel (Ni), % | 0 | |
| 30 to 32 |
| Nitrogen (N), % | 0 | |
| 0.3 to 0.5 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.020 |
| Silicon (Si), % | 1.6 to 2.0 | |
| 0 to 0.9 |
| Sulfur (S), % | 0 to 0.025 | |
| 0 to 0.010 |