Nickel 690 vs. C71580 Copper-nickel
Nickel 690 belongs to the nickel alloys classification, while C71580 copper-nickel belongs to the copper alloys. They have a modest 32% of their average alloy composition in common, which, by itself, doesn't mean much. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.
For each property being compared, the top bar is nickel 690 and the bottom bar is C71580 copper-nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Brinell Hardness | 90 | |
| 75 |
| Elastic (Young's, Tensile) Modulus, GPa | 200 | |
| 140 |
| Elongation at Break, % | 3.4 to 34 | |
| 40 |
| Poisson's Ratio | 0.28 | |
| 0.33 |
| Shear Modulus, GPa | 79 | |
| 51 |
| Shear Strength, MPa | 420 to 570 | |
| 230 |
| Tensile Strength: Ultimate (UTS), MPa | 640 to 990 | |
| 330 |
| Tensile Strength: Yield (Proof), MPa | 250 to 760 | |
| 110 |
Thermal Properties
| Latent Heat of Fusion, J/g | 320 | |
| 230 |
| Maximum Temperature: Mechanical, °C | 1010 | |
| 260 |
| Melting Completion (Liquidus), °C | 1380 | |
| 1180 |
| Melting Onset (Solidus), °C | 1340 | |
| 1120 |
| Specific Heat Capacity, J/kg-K | 470 | |
| 400 |
| Thermal Conductivity, W/m-K | 14 | |
| 39 |
| Thermal Expansion, µm/m-K | 14 | |
| 15 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 1.5 | |
| 4.7 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 1.6 | |
| 4.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 50 | |
| 41 |
| Density, g/cm3 | 8.3 | |
| 8.9 |
| Embodied Carbon, kg CO2/kg material | 8.2 | |
| 5.1 |
| Embodied Energy, MJ/kg | 120 | |
| 74 |
| Embodied Water, L/kg | 290 | |
| 280 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 31 to 170 | |
| 100 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 160 to 1440 | |
| 47 |
| Stiffness to Weight: Axial, points | 13 | |
| 8.5 |
| Stiffness to Weight: Bending, points | 24 | |
| 19 |
| Strength to Weight: Axial, points | 21 to 33 | |
| 10 |
| Strength to Weight: Bending, points | 20 to 27 | |
| 12 |
| Thermal Diffusivity, mm2/s | 3.5 | |
| 11 |
| Thermal Shock Resistance, points | 16 to 25 | |
| 11 |
Alloy Composition
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| Carbon (C), % | 0 to 0.050 | |
| 0 to 0.070 |
| Chromium (Cr), % | 27 to 31 | |
| 0 |
| Copper (Cu), % | 0 to 0.5 | |
| 65.5 to 71 |
| Iron (Fe), % | 7.0 to 11 | |
| 0 to 0.5 |
| Lead (Pb), % | 0 | |
| 0 to 0.050 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0 to 0.3 |
| Nickel (Ni), % | 58 to 66 | |
| 29 to 33 |
| Silicon (Si), % | 0 to 0.5 | |
| 0 |
| Sulfur (S), % | 0 to 0.015 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.050 |
| Residuals, % | 0 | |
| 0 to 0.5 |