C71640 Copper-nickel vs. Type 2 Magnetic Alloy
C71640 copper-nickel belongs to the copper alloys classification, while Type 2 magnetic alloy belongs to the iron alloys. They have a modest 33% of their average alloy composition in common, which, by itself, doesn't mean much. There are 23 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 C71640 copper-nickel and the bottom bar is Type 2 magnetic alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 140 | |
| 190 |
| Poisson's Ratio | 0.33 | |
| 0.3 |
| Shear Modulus, GPa | 52 | |
| 72 |
| Tensile Strength: Ultimate (UTS), MPa | 490 to 630 | |
| 510 to 910 |
| Tensile Strength: Yield (Proof), MPa | 190 to 460 | |
| 260 to 870 |
Thermal Properties
| Latent Heat of Fusion, J/g | 240 | |
| 270 |
| Melting Completion (Liquidus), °C | 1180 | |
| 1420 |
| Melting Onset (Solidus), °C | 1120 | |
| 1370 |
| Specific Heat Capacity, J/kg-K | 410 | |
| 460 |
| Thermal Expansion, µm/m-K | 15 | |
| 12 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.0 | |
| 3.9 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.1 | |
| 4.2 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 40 | |
| 33 |
| Density, g/cm3 | 8.9 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 5.0 | |
| 5.9 |
| Embodied Energy, MJ/kg | 73 | |
| 81 |
| Embodied Water, L/kg | 280 | |
| 140 |
Common Calculations
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 130 to 750 | |
| 170 to 2010 |
| Stiffness to Weight: Axial, points | 8.7 | |
| 12 |
| Stiffness to Weight: Bending, points | 20 | |
| 23 |
| Strength to Weight: Axial, points | 15 to 20 | |
| 17 to 30 |
| Strength to Weight: Bending, points | 16 to 18 | |
| 17 to 25 |
| Thermal Shock Resistance, points | 16 to 21 | |
| 16 to 29 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0 to 0.050 |
| Chromium (Cr), % | 0 | |
| 0 to 0.3 |
| Cobalt (Co), % | 0 | |
| 0 to 0.5 |
| Copper (Cu), % | 61.7 to 67.8 | |
| 0 to 0.3 |
| Iron (Fe), % | 1.7 to 2.3 | |
| 48.2 to 53 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 |
| Manganese (Mn), % | 1.5 to 2.5 | |
| 0 to 0.8 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.3 |
| Nickel (Ni), % | 29 to 32 | |
| 47 to 49 |
| Phosphorus (P), % | 0 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 | |
| 0 to 0.5 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Zinc (Zn), % | 0 to 1.0 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |