EN 1.7709 Steel vs. C72800 Copper-nickel
EN 1.7709 steel belongs to the iron alloys classification, while C72800 copper-nickel belongs to the copper alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is EN 1.7709 steel and the bottom bar is C72800 copper-nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 190 | |
| 120 |
| Poisson's Ratio | 0.29 | |
| 0.34 |
| Shear Modulus, GPa | 73 | |
| 44 |
| Tensile Strength: Ultimate (UTS), MPa | 650 to 780 | |
| 520 to 1270 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 210 |
| Maximum Temperature: Mechanical, °C | 440 | |
| 200 |
| Melting Completion (Liquidus), °C | 1470 | |
| 1080 |
| Melting Onset (Solidus), °C | 1420 | |
| 920 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 380 |
| Thermal Conductivity, W/m-K | 33 | |
| 55 |
| Thermal Expansion, µm/m-K | 11 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.5 | |
| 11 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 8.6 | |
| 11 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 3.4 | |
| 38 |
| Density, g/cm3 | 7.8 | |
| 8.8 |
| Embodied Carbon, kg CO2/kg material | 2.3 | |
| 4.4 |
| Embodied Energy, MJ/kg | 32 | |
| 68 |
| Embodied Water, L/kg | 56 | |
| 360 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 7.4 |
| Stiffness to Weight: Bending, points | 24 | |
| 19 |
| Strength to Weight: Axial, points | 23 to 27 | |
| 17 to 40 |
| Strength to Weight: Bending, points | 21 to 24 | |
| 16 to 30 |
| Thermal Diffusivity, mm2/s | 8.9 | |
| 17 |
| Thermal Shock Resistance, points | 22 to 26 | |
| 19 to 45 |
Alloy Composition
| Aluminum (Al), % | 0 to 0.030 | |
| 0 to 0.1 |
| Antimony (Sb), % | 0 | |
| 0 to 0.020 |
| Bismuth (Bi), % | 0 | |
| 0 to 0.0010 |
| Boron (B), % | 0 | |
| 0 to 0.0010 |
| Carbon (C), % | 0.17 to 0.25 | |
| 0 |
| Chromium (Cr), % | 1.2 to 1.5 | |
| 0 |
| Copper (Cu), % | 0 | |
| 78.3 to 82.8 |
| Iron (Fe), % | 95.2 to 97.5 | |
| 0 to 0.5 |
| Lead (Pb), % | 0 | |
| 0 to 0.0050 |
| Magnesium (Mg), % | 0 | |
| 0.0050 to 0.15 |
| Manganese (Mn), % | 0.4 to 0.8 | |
| 0.050 to 0.3 |
| Molybdenum (Mo), % | 0.55 to 0.8 | |
| 0 |
| Nickel (Ni), % | 0 to 0.6 | |
| 9.5 to 10.5 |
| Niobium (Nb), % | 0 | |
| 0.1 to 0.3 |
| Phosphorus (P), % | 0 to 0.025 | |
| 0 to 0.0050 |
| Silicon (Si), % | 0 to 0.4 | |
| 0 to 0.050 |
| Sulfur (S), % | 0 to 0.030 | |
| 0 to 0.0025 |
| Tin (Sn), % | 0 | |
| 7.5 to 8.5 |
| Titanium (Ti), % | 0 | |
| 0 to 0.010 |
| Vanadium (V), % | 0.2 to 0.35 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 1.0 |
| Residuals, % | 0 | |
| 0 to 0.3 |