C72900 Copper-nickel vs. Grade 250 Maraging Steel
C72900 copper-nickel belongs to the copper alloys classification, while grade 250 maraging steel belongs to the iron alloys. There are 23 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is C72900 copper-nickel and the bottom bar is grade 250 maraging steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 190 |
| Elongation at Break, % | 6.0 to 20 | |
| 7.3 to 17 |
| Poisson's Ratio | 0.34 | |
| 0.3 |
| Shear Modulus, GPa | 45 | |
| 75 |
| Shear Strength, MPa | 540 to 630 | |
| 600 to 1060 |
| Tensile Strength: Ultimate (UTS), MPa | 870 to 1080 | |
| 970 to 1800 |
| Tensile Strength: Yield (Proof), MPa | 700 to 920 | |
| 660 to 1740 |
Thermal Properties
| Latent Heat of Fusion, J/g | 210 | |
| 270 |
| Melting Completion (Liquidus), °C | 1120 | |
| 1480 |
| Melting Onset (Solidus), °C | 950 | |
| 1430 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 450 |
| Thermal Expansion, µm/m-K | 17 | |
| 12 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 39 | |
| 32 |
| Density, g/cm3 | 8.8 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 4.6 | |
| 4.9 |
| Embodied Energy, MJ/kg | 72 | |
| 65 |
| Embodied Water, L/kg | 360 | |
| 140 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 49 to 210 | |
| 130 to 150 |
| Stiffness to Weight: Axial, points | 7.6 | |
| 13 |
| Stiffness to Weight: Bending, points | 19 | |
| 23 |
| Strength to Weight: Axial, points | 27 to 34 | |
| 33 to 61 |
| Strength to Weight: Bending, points | 23 to 27 | |
| 26 to 40 |
| Thermal Shock Resistance, points | 31 to 38 | |
| 29 to 54 |
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 | |
| 7.0 to 8.5 |
| Copper (Cu), % | 74.1 to 78 | |
| 0 |
| Iron (Fe), % | 0 to 0.5 | |
| 66.3 to 71.1 |
| Lead (Pb), % | 0 to 0.020 | |
| 0 |
| Magnesium (Mg), % | 0 to 0.15 | |
| 0 |
| Manganese (Mn), % | 0 to 0.3 | |
| 0 to 0.1 |
| Molybdenum (Mo), % | 0 | |
| 4.6 to 5.2 |
| Nickel (Ni), % | 14.5 to 15.5 | |
| 17 to 19 |
| Niobium (Nb), % | 0 to 0.1 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.010 |
| Silicon (Si), % | 0 | |
| 0 to 0.1 |
| Sulfur (S), % | 0 | |
| 0 to 0.010 |
| Tin (Sn), % | 7.5 to 8.5 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 0.3 to 0.5 |
| Zinc (Zn), % | 0 to 0.5 | |
| 0 |
| Zirconium (Zr), % | 0 | |
| 0 to 0.020 |
| Residuals, % | 0 to 0.3 | |
| 0 |