EN 1.7725 Steel vs. AWS ER70S-B2L
Both EN 1.7725 steel and AWS ER70S-B2L are iron alloys. Their average alloy composition is basically identical. There are 28 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is EN 1.7725 steel and the bottom bar is AWS ER70S-B2L.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 190 |
| Elongation at Break, % | 14 | |
| 22 |
| Poisson's Ratio | 0.29 | |
| 0.29 |
| Shear Modulus, GPa | 73 | |
| 73 |
| Tensile Strength: Ultimate (UTS), MPa | 830 to 1000 | |
| 590 |
| Tensile Strength: Yield (Proof), MPa | 610 to 860 | |
| 450 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 260 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1460 |
| Melting Onset (Solidus), °C | 1420 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 470 |
| Thermal Conductivity, W/m-K | 39 | |
| 40 |
| Thermal Expansion, µm/m-K | 13 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.4 | |
| 7.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.6 | |
| 8.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 2.9 | |
| 3.0 |
| Density, g/cm3 | 7.8 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 1.8 | |
| 1.6 |
| Embodied Energy, MJ/kg | 24 | |
| 21 |
| Embodied Water, L/kg | 54 | |
| 54 |
Common Calculations
| PREN (Pitting Resistance) | 2.8 | |
| 3.1 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 to 130 | |
| 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 980 to 1940 | |
| 530 |
| Stiffness to Weight: Axial, points | 13 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 24 |
| Strength to Weight: Axial, points | 29 to 35 | |
| 21 |
| Strength to Weight: Bending, points | 25 to 28 | |
| 20 |
| Thermal Diffusivity, mm2/s | 11 | |
| 11 |
| Thermal Shock Resistance, points | 24 to 29 | |
| 17 |
Alloy Composition
| Carbon (C), % | 0.27 to 0.34 | |
| 0 to 0.050 |
| Chromium (Cr), % | 1.3 to 1.7 | |
| 1.2 to 1.5 |
| Copper (Cu), % | 0 | |
| 0 to 0.35 |
| Iron (Fe), % | 95.7 to 97.5 | |
| 95.3 to 97.6 |
| Manganese (Mn), % | 0.6 to 1.0 | |
| 0.4 to 0.7 |
| Molybdenum (Mo), % | 0.3 to 0.5 | |
| 0.4 to 0.65 |
| Nickel (Ni), % | 0 | |
| 0 to 0.2 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.025 |
| Silicon (Si), % | 0 to 0.6 | |
| 0.4 to 0.7 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.025 |
| Vanadium (V), % | 0.050 to 0.15 | |
| 0 |
| Residuals, % | 0 | |
| 0 to 0.5 |