C70700 Copper-nickel vs. C72150 Copper-nickel
Both C70700 copper-nickel and C72150 copper-nickel are copper alloys. Both are furnished in the annealed condition. They have 65% of their average alloy composition in common.
For each property being compared, the top bar is C70700 copper-nickel and the bottom bar is C72150 copper-nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 73 | |
| 99 |
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 150 |
| Elongation at Break, % | 39 | |
| 29 |
| Poisson's Ratio | 0.34 | |
| 0.33 |
| Shear Modulus, GPa | 46 | |
| 55 |
| Shear Strength, MPa | 220 | |
| 320 |
| Tensile Strength: Ultimate (UTS), MPa | 320 | |
| 490 |
| Tensile Strength: Yield (Proof), MPa | 110 | |
| 210 |
Thermal Properties
| Latent Heat of Fusion, J/g | 220 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 220 | |
| 600 |
| Melting Completion (Liquidus), °C | 1120 | |
| 1210 |
| Melting Onset (Solidus), °C | 1060 | |
| 1250 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 410 |
| Thermal Conductivity, W/m-K | 59 | |
| 22 |
| Thermal Expansion, µm/m-K | 16 | |
| 14 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 11 | |
| 3.5 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 12 | |
| 3.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 34 | |
| 45 |
| Density, g/cm3 | 8.9 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 3.4 | |
| 6.1 |
| Embodied Energy, MJ/kg | 52 | |
| 88 |
| Embodied Water, L/kg | 300 | |
| 270 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 | |
| 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 51 | |
| 150 |
| Stiffness to Weight: Axial, points | 7.6 | |
| 9.1 |
| Stiffness to Weight: Bending, points | 19 | |
| 20 |
| Strength to Weight: Axial, points | 10 | |
| 15 |
| Strength to Weight: Bending, points | 12 | |
| 15 |
| Thermal Diffusivity, mm2/s | 17 | |
| 6.0 |
| Thermal Shock Resistance, points | 12 | |
| 18 |
Alloy Composition
| Carbon (C), % | 0 | |
| 0 to 0.1 |
| Copper (Cu), % | 88.5 to 90.5 | |
| 52.5 to 57 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 to 0.1 |
| Lead (Pb), % | 0 | |
| 0 to 0.050 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0 to 0.050 |
| Nickel (Ni), % | 9.5 to 10.5 | |
| 43 to 46 |
| Silicon (Si), % | 0 | |
| 0 to 0.5 |
| Zinc (Zn), % | 0 | |
| 0 to 0.2 |
| Residuals, % | 0 | |
| 0 to 0.5 |