AWS ERNiCr-3 vs. ACI-ASTM CN7M Steel
AWS ERNiCr-3 belongs to the nickel alloys classification, while ACI-ASTM CN7M steel belongs to the iron alloys. They have 52% of their average alloy composition in common. There are 20 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is AWS ERNiCr-3 and the bottom bar is ACI-ASTM CN7M steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 200 |
| Elongation at Break, % | 34 | |
| 44 |
| Poisson's Ratio | 0.29 | |
| 0.28 |
| Shear Modulus, GPa | 75 | |
| 77 |
| Tensile Strength: Ultimate (UTS), MPa | 630 | |
| 480 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 310 |
| Melting Completion (Liquidus), °C | 1380 | |
| 1410 |
| Melting Onset (Solidus), °C | 1330 | |
| 1450 |
| Specific Heat Capacity, J/kg-K | 460 | |
| 470 |
| Thermal Expansion, µm/m-K | 13 | |
| 15 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 70 | |
| 32 |
| Density, g/cm3 | 8.4 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 11 | |
| 5.6 |
| Embodied Energy, MJ/kg | 160 | |
| 78 |
| Embodied Water, L/kg | 280 | |
| 210 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 14 |
| Stiffness to Weight: Bending, points | 23 | |
| 24 |
| Strength to Weight: Axial, points | 21 | |
| 17 |
| Strength to Weight: Bending, points | 19 | |
| 17 |
| Thermal Shock Resistance, points | 18 | |
| 12 |
Alloy Composition
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| Carbon (C), % | 0 to 0.1 | |
| 0 to 0.070 |
| Chromium (Cr), % | 18 to 22 | |
| 19 to 22 |
| Cobalt (Co), % | 0 to 0.12 | |
| 0 |
| Copper (Cu), % | 0 to 0.5 | |
| 3.0 to 4.0 |
| Iron (Fe), % | 0 to 3.0 | |
| 37.4 to 48.5 |
| Manganese (Mn), % | 2.5 to 3.5 | |
| 0 to 1.5 |
| Molybdenum (Mo), % | 0 | |
| 2.0 to 3.0 |
| Nickel (Ni), % | 67 to 77.5 | |
| 27.5 to 30.5 |
| Niobium (Nb), % | 2.0 to 3.0 | |
| 0 |
| Phosphorus (P), % | 0 to 0.030 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 to 1.5 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.040 |
| Titanium (Ti), % | 0 to 0.75 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |