C71520 Copper-nickel vs. S17700 Stainless Steel
C71520 copper-nickel belongs to the copper alloys classification, while S17700 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is C71520 copper-nickel and the bottom bar is S17700 stainless steel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 140 | |
| 200 |
| Elongation at Break, % | 10 to 45 | |
| 1.0 to 23 |
| Poisson's Ratio | 0.33 | |
| 0.28 |
| Shear Modulus, GPa | 51 | |
| 76 |
| Shear Strength, MPa | 250 to 340 | |
| 740 to 940 |
| Tensile Strength: Ultimate (UTS), MPa | 370 to 570 | |
| 1180 to 1650 |
| Tensile Strength: Yield (Proof), MPa | 140 to 430 | |
| 430 to 1210 |
Thermal Properties
| Latent Heat of Fusion, J/g | 230 | |
| 290 |
| Maximum Temperature: Mechanical, °C | 260 | |
| 890 |
| Melting Completion (Liquidus), °C | 1170 | |
| 1440 |
| Melting Onset (Solidus), °C | 1120 | |
| 1400 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 480 |
| Thermal Conductivity, W/m-K | 32 | |
| 15 |
| Thermal Expansion, µm/m-K | 15 | |
| 11 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 5.7 | |
| 2.3 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 5.8 | |
| 2.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 40 | |
| 13 |
| Density, g/cm3 | 8.9 | |
| 7.7 |
| Embodied Carbon, kg CO2/kg material | 5.0 | |
| 2.8 |
| Embodied Energy, MJ/kg | 73 | |
| 40 |
| Embodied Water, L/kg | 280 | |
| 150 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 54 to 130 | |
| 15 to 210 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 67 to 680 | |
| 460 to 3750 |
| Stiffness to Weight: Axial, points | 8.6 | |
| 14 |
| Stiffness to Weight: Bending, points | 19 | |
| 25 |
| Strength to Weight: Axial, points | 12 to 18 | |
| 42 to 59 |
| Strength to Weight: Bending, points | 13 to 17 | |
| 32 to 40 |
| Thermal Diffusivity, mm2/s | 8.9 | |
| 4.1 |
| Thermal Shock Resistance, points | 12 to 19 | |
| 39 to 54 |
Alloy Composition
| Aluminum (Al), % | 0 | |
| 0.75 to 1.5 |
| Carbon (C), % | 0 to 0.050 | |
| 0 to 0.090 |
| Chromium (Cr), % | 0 | |
| 16 to 18 |
| Copper (Cu), % | 65 to 71.6 | |
| 0 |
| Iron (Fe), % | 0.4 to 1.0 | |
| 70.5 to 76.8 |
| Lead (Pb), % | 0 to 0.020 | |
| 0 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 to 1.0 |
| Nickel (Ni), % | 28 to 33 | |
| 6.5 to 7.8 |
| Phosphorus (P), % | 0 to 0.2 | |
| 0 to 0.040 |
| 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 |