AWS E3155 vs. Grade N7M Nickel
AWS E3155 belongs to the iron alloys classification, while grade N7M nickel belongs to the nickel alloys. They have a modest 26% of their average alloy composition in common, which, by itself, doesn't mean much. There are 20 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 AWS E3155 and the bottom bar is grade N7M nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 210 | |
| 220 |
| Elongation at Break, % | 23 | |
| 22 |
| Poisson's Ratio | 0.29 | |
| 0.31 |
| Shear Modulus, GPa | 81 | |
| 85 |
| Tensile Strength: Ultimate (UTS), MPa | 770 | |
| 590 |
Thermal Properties
| Latent Heat of Fusion, J/g | 310 | |
| 320 |
| Melting Completion (Liquidus), °C | 1460 | |
| 1650 |
| Melting Onset (Solidus), °C | 1410 | |
| 1590 |
| Specific Heat Capacity, J/kg-K | 450 | |
| 390 |
| Thermal Expansion, µm/m-K | 13 | |
| 9.9 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 70 | |
| 75 |
| Density, g/cm3 | 8.4 | |
| 9.3 |
| Embodied Carbon, kg CO2/kg material | 7.7 | |
| 16 |
| Embodied Energy, MJ/kg | 110 | |
| 200 |
| Embodied Water, L/kg | 300 | |
| 270 |
Common Calculations
| Stiffness to Weight: Axial, points | 14 | |
| 13 |
| Stiffness to Weight: Bending, points | 24 | |
| 22 |
| Strength to Weight: Axial, points | 26 | |
| 18 |
| Strength to Weight: Bending, points | 22 | |
| 17 |
| Thermal Shock Resistance, points | 20 | |
| 19 |
Alloy Composition
| Carbon (C), % | 0 to 0.1 | |
| 0 to 0.070 |
| Chromium (Cr), % | 20 to 22.5 | |
| 0 to 1.0 |
| Cobalt (Co), % | 18.5 to 21 | |
| 0 |
| Copper (Cu), % | 0 to 0.75 | |
| 0 |
| Iron (Fe), % | 23.3 to 36.3 | |
| 0 to 3.0 |
| Manganese (Mn), % | 1.0 to 2.5 | |
| 0 to 1.0 |
| Molybdenum (Mo), % | 2.5 to 3.5 | |
| 30 to 33 |
| Nickel (Ni), % | 19 to 21 | |
| 60.9 to 70 |
| Niobium (Nb), % | 0.75 to 1.3 | |
| 0 |
| Phosphorus (P), % | 0 to 0.040 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 1.0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.030 |
| Tungsten (W), % | 2.0 to 3.0 | |
| 0 |