C70700 Copper-nickel vs. EN 1.1181 Steel
C70700 copper-nickel belongs to the copper alloys classification, while EN 1.1181 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is C70700 copper-nickel and the bottom bar is EN 1.1181 steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 73 | |
| 160 to 180 |
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 190 |
| Elongation at Break, % | 39 | |
| 19 to 20 |
| Poisson's Ratio | 0.34 | |
| 0.29 |
| Shear Modulus, GPa | 46 | |
| 73 |
| Shear Strength, MPa | 220 | |
| 350 to 390 |
| Tensile Strength: Ultimate (UTS), MPa | 320 | |
| 560 to 620 |
| Tensile Strength: Yield (Proof), MPa | 110 | |
| 280 to 380 |
Thermal Properties
| Latent Heat of Fusion, J/g | 220 | |
| 250 |
| Maximum Temperature: Mechanical, °C | 220 | |
| 400 |
| Melting Completion (Liquidus), °C | 1120 | |
| 1460 |
| Melting Onset (Solidus), °C | 1060 | |
| 1420 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 470 |
| Thermal Conductivity, W/m-K | 59 | |
| 42 |
| Thermal Expansion, µm/m-K | 16 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 11 | |
| 7.2 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 12 | |
| 8.3 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 34 | |
| 2.1 |
| Density, g/cm3 | 8.9 | |
| 7.8 |
| Embodied Carbon, kg CO2/kg material | 3.4 | |
| 1.4 |
| Embodied Energy, MJ/kg | 52 | |
| 19 |
| Embodied Water, L/kg | 300 | |
| 47 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 100 | |
| 90 to 110 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 51 | |
| 210 to 380 |
| Stiffness to Weight: Axial, points | 7.6 | |
| 13 |
| Stiffness to Weight: Bending, points | 19 | |
| 24 |
| Strength to Weight: Axial, points | 10 | |
| 20 to 22 |
| Strength to Weight: Bending, points | 12 | |
| 19 to 21 |
| Thermal Diffusivity, mm2/s | 17 | |
| 11 |
| Thermal Shock Resistance, points | 12 | |
| 19 to 21 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0.32 to 0.39 |
| Chromium (Cr), % | 0 | |
| 0 to 0.4 |
| Copper (Cu), % | 88.5 to 90.5 | |
| 0 |
| Iron (Fe), % | 0 to 0.050 | |
| 97.4 to 99.18 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0.5 to 0.8 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.1 |
| Nickel (Ni), % | 9.5 to 10.5 | |
| 0 to 0.4 |
| Phosphorus (P), % | 0 | |
| 0 to 0.035 |
| Silicon (Si), % | 0 | |
| 0 to 0.4 |
| Sulfur (S), % | 0 | |
| 0 to 0.035 |
| Residuals, % | 0 to 0.5 | |
| 0 |