C70620 Copper-nickel vs. ACI-ASTM CB7Cu-1 Steel
C70620 copper-nickel belongs to the copper alloys classification, while ACI-ASTM CB7Cu-1 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is C70620 copper-nickel and the bottom bar is ACI-ASTM CB7Cu-1 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 190 |
| Poisson's Ratio | 0.34 | |
| 0.28 |
| Shear Modulus, GPa | 46 | |
| 76 |
| Tensile Strength: Ultimate (UTS), MPa | 300 to 570 | |
| 960 to 1350 |
Thermal Properties
| Latent Heat of Fusion, J/g | 220 | |
| 280 |
| Melting Completion (Liquidus), °C | 1120 | |
| 1430 |
| Melting Onset (Solidus), °C | 1060 | |
| 1500 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 480 |
| Thermal Conductivity, W/m-K | 49 | |
| 17 |
| Thermal Expansion, µm/m-K | 17 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 33 | |
| 13 |
| Density, g/cm3 | 8.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.4 | |
| 2.6 |
| Embodied Energy, MJ/kg | 51 | |
| 38 |
| Embodied Water, L/kg | 300 | |
| 130 |
Common Calculations
| Stiffness to Weight: Axial, points | 7.7 | |
| 14 |
| Stiffness to Weight: Bending, points | 19 | |
| 25 |
| Strength to Weight: Axial, points | 9.3 to 18 | |
| 34 to 48 |
| Strength to Weight: Bending, points | 11 to 17 | |
| 28 to 35 |
| Thermal Diffusivity, mm2/s | 14 | |
| 4.6 |
| Thermal Shock Resistance, points | 10 to 20 | |
| 32 to 45 |
Alloy Composition
| Carbon (C), % | 0 to 0.050 | |
| 0 to 0.070 |
| Chromium (Cr), % | 0 | |
| 15.5 to 17.7 |
| Copper (Cu), % | 86.5 to 90 | |
| 2.5 to 3.2 |
| Iron (Fe), % | 1.0 to 1.8 | |
| 72.3 to 78.4 |
| Lead (Pb), % | 0 to 0.020 | |
| 0 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 0.7 |
| Nickel (Ni), % | 9.0 to 11 | |
| 3.6 to 4.6 |
| Niobium (Nb), % | 0 | |
| 0 to 0.35 |
| Nitrogen (N), % | 0 | |
| 0 to 0.050 |
| Phosphorus (P), % | 0 to 0.2 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 | |
| 0 to 1.0 |
| Sulfur (S), % | 0 to 0.020 | |
| 0 to 0.030 |
| Zinc (Zn), % | 0 to 0.5 | |
| 0 |
| Residuals, % | 0 to 0.5 | |
| 0 |