EN 1.6579 Steel vs. AWS ER90S-D2
Both EN 1.6579 steel and AWS ER90S-D2 are iron alloys. They have a very high 97% of their average alloy composition in common. There are 27 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.
For each property being compared, the top bar is EN 1.6579 steel and the bottom bar is AWS ER90S-D2.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 11 to 14 | |
| 19 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 850 to 980 | |
| 710 |
| Tensile Strength: Yield (Proof), MPa | 600 to 910 | |
| 600 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 260 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1450 |
| Melting Onset (Solidus), °C | 1410 | |
| 1410 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 39 | |
| 47 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.7 | |
| 7.4 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.8 | |
| 8.5 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.7 | |
| 2.6 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.7 | |
| 1.6 |
| Embodied Energy, MJ/kg | 22 | |
| 21 |
| Embodied Water, L/kg | 56 | |
| 50 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 to 120 | |
| 130 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 950 to 2210 | |
| 980 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 30 to 35 | |
| 25 |
| Strength to Weight: Bending, points | 25 to 28 | |
| 23 |
| Thermal Diffusivity, mm2/s | 11 | |
| 13 |
| Thermal Shock Resistance, points | 25 to 29 | |
| 21 |
Alloy Composition
| Carbon (C), % | 0.32 to 0.38 | |
| 0.070 to 0.12 |
| Chromium (Cr), % | 1.4 to 1.7 | |
| 0 |
| Copper (Cu), % | 0 | |
| 0 to 0.5 |
| Iron (Fe), % | 94.2 to 96.1 | |
| 95.2 to 97.4 |
| Manganese (Mn), % | 0.6 to 1.0 | |
| 1.6 to 2.1 |
| Molybdenum (Mo), % | 0.15 to 0.35 | |
| 0.4 to 0.6 |
| Nickel (Ni), % | 1.4 to 1.7 | |
| 0 to 0.15 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.6 | |
| 0.5 to 0.8 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.025 |
| Residuals, % | 0 | |
| 0 to 0.5 |