AWS E409Nb vs. ACI-ASTM CN7MS Steel
Both AWS E409Nb and ACI-ASTM CN7MS steel are iron alloys. They have 64% of their average alloy composition in common. There are 26 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is AWS E409Nb and the bottom bar is ACI-ASTM CN7MS steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 23 | |
| 39 |
| Poisson's Ratio | 0.28 | |
| 0.28 |
| Shear Modulus, GPa | 76 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 500 | |
| 540 |
| Tensile Strength: Yield (Proof), MPa | 380 | |
| 230 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 340 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1400 |
| Melting Onset (Solidus), °C | 1410 | |
| 1350 |
| Specific Heat Capacity, J/kg-K | 480 | |
| 480 |
| Thermal Conductivity, W/m-K | 25 | |
| 12 |
| Thermal Expansion, µm/m-K | 14 | |
| 16 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 13 | |
| 28 |
| Density, g/cm3 | 7.8 | |
| 7.9 |
| Embodied Carbon, kg CO2/kg material | 2.9 | |
| 5.1 |
| Embodied Energy, MJ/kg | 42 | |
| 71 |
| Embodied Water, L/kg | 100 | |
| 180 |
Common Calculations
| PREN (Pitting Resistance) | 14 | |
| 28 |
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 110 | |
| 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 380 | |
| 140 |
| Stiffness to Weight: Axial, points | 14 | |
| 14 |
| Stiffness to Weight: Bending, points | 25 | |
| 25 |
| Strength to Weight: Axial, points | 18 | |
| 19 |
| Strength to Weight: Bending, points | 18 | |
| 19 |
| Thermal Diffusivity, mm2/s | 6.8 | |
| 3.2 |
| Thermal Shock Resistance, points | 14 | |
| 13 |
Alloy Composition
| Carbon (C), % | 0 to 0.12 | |
| 0 to 0.070 |
| Chromium (Cr), % | 11 to 14 | |
| 18 to 20 |
| Copper (Cu), % | 0 to 0.75 | |
| 1.5 to 2.0 |
| Iron (Fe), % | 80.2 to 88.5 | |
| 45.4 to 53.5 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 0 to 0.75 | |
| 2.5 to 3.0 |
| Nickel (Ni), % | 0 to 0.6 | |
| 22 to 25 |
| Niobium (Nb), % | 0.5 to 1.5 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 2.5 to 3.5 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |