AWS ENiCu-7 vs. AWS ERNiCrMo-3
Both AWS ENiCu-7 and AWS ERNiCrMo-3 are nickel alloys. Both are furnished in the as-welded condition. They have 66% of their average alloy composition in common.
For each property being compared, the top bar is AWS ENiCu-7 and the bottom bar is AWS ERNiCrMo-3.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 160 | |
| 200 |
| Elongation at Break, % | 34 | |
| 34 |
| Poisson's Ratio | 0.32 | |
| 0.29 |
| Shear Modulus, GPa | 62 | |
| 79 |
| Tensile Strength: Ultimate (UTS), MPa | 550 | |
| 870 |
Thermal Properties
| Latent Heat of Fusion, J/g | 280 | |
| 330 |
| Melting Completion (Liquidus), °C | 1270 | |
| 1480 |
| Melting Onset (Solidus), °C | 1230 | |
| 1430 |
| Specific Heat Capacity, J/kg-K | 430 | |
| 440 |
| Thermal Conductivity, W/m-K | 21 | |
| 11 |
| Thermal Expansion, µm/m-K | 13 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.3 | |
| 1.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.3 | |
| 1.4 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 50 | |
| 80 |
| Density, g/cm3 | 8.7 | |
| 8.6 |
| Embodied Carbon, kg CO2/kg material | 8.0 | |
| 14 |
| Embodied Energy, MJ/kg | 110 | |
| 190 |
| Embodied Water, L/kg | 250 | |
| 290 |
Common Calculations
| Stiffness to Weight: Axial, points | 10 | |
| 13 |
| Stiffness to Weight: Bending, points | 21 | |
| 23 |
| Strength to Weight: Axial, points | 17 | |
| 28 |
| Strength to Weight: Bending, points | 17 | |
| 24 |
| Thermal Diffusivity, mm2/s | 5.5 | |
| 2.8 |
| Thermal Shock Resistance, points | 18 | |
| 25 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.75 | |
| 0 to 0.4 |
| Carbon (C), % | 0 to 0.1 | |
| 0 to 0.010 |
| Chromium (Cr), % | 0 | |
| 20 to 23 |
| Copper (Cu), % | 20.6 to 38 | |
| 0 to 0.5 |
| Iron (Fe), % | 0 to 2.5 | |
| 0 to 5.0 |
| Manganese (Mn), % | 0 to 4.0 | |
| 0 to 0.5 |
| Molybdenum (Mo), % | 0 | |
| 8.0 to 10 |
| Nickel (Ni), % | 62 to 69 | |
| 58 to 68.9 |
| Niobium (Nb), % | 0 | |
| 3.2 to 4.2 |
| Phosphorus (P), % | 0 to 0.020 | |
| 0 to 0.020 |
| Silicon (Si), % | 0 to 1.5 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 to 0.015 |
| Titanium (Ti), % | 0 to 1.0 | |
| 0 to 0.4 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |