C71640 Copper-nickel vs. Grade 350 Maraging Steel
C71640 copper-nickel belongs to the copper alloys classification, while grade 350 maraging steel belongs to the iron alloys. They have a modest 21% 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 (12, in this case) are not shown.
For each property being compared, the top bar is C71640 copper-nickel and the bottom bar is grade 350 maraging steel.
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 | |
| 75 |
| Tensile Strength: Ultimate (UTS), MPa | 490 to 630 | |
| 1140 to 2420 |
| Tensile Strength: Yield (Proof), MPa | 190 to 460 | |
| 830 to 2300 |
Thermal Properties
| Latent Heat of Fusion, J/g | 240 | |
| 270 |
| Melting Completion (Liquidus), °C | 1180 | |
| 1470 |
| Melting Onset (Solidus), °C | 1120 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 410 | |
| 450 |
| Thermal Expansion, µm/m-K | 15 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 40 | |
| 39 |
| Density, g/cm3 | 8.9 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 5.0 | |
| 5.6 |
| Embodied Energy, MJ/kg | 73 | |
| 74 |
| Embodied Water, L/kg | 280 | |
| 160 |
Common Calculations
| Stiffness to Weight: Axial, points | 8.7 | |
| 13 |
| Stiffness to Weight: Bending, points | 20 | |
| 23 |
| Strength to Weight: Axial, points | 15 to 20 | |
| 38 to 82 |
| Strength to Weight: Bending, points | 16 to 18 | |
| 29 to 49 |
| Thermal Shock Resistance, points | 16 to 21 | |
| 35 to 74 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 0.050 to 0.15 |
| Boron (B), % | 0 | |
| 0 to 0.0030 |
| Calcium (Ca), % | 0 | |
| 0 to 0.050 |
| Carbon (C), % | 0 | |
| 0 to 0.030 |
| Cobalt (Co), % | 0 | |
| 11.5 to 12.5 |
| Copper (Cu), % | 61.7 to 67.8 | |
| 0 |
| Iron (Fe), % | 1.7 to 2.3 | |
| 61.2 to 64.6 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 |
| Manganese (Mn), % | 1.5 to 2.5 | |
| 0 to 0.1 |
| Molybdenum (Mo), % | 0 | |
| 4.6 to 5.2 |
| Nickel (Ni), % | 29 to 32 | |
| 18 to 19 |
| Phosphorus (P), % | 0 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 | |
| 0 to 0.010 |
| Titanium (Ti), % | 0 | |
| 1.3 to 1.6 |
| Zinc (Zn), % | 0 to 1.0 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 0 to 0.020 |
| Residuals, % | 0 to 0.5 | |
| 0 |