C70260 Copper vs. C75700 Nickel Silver
Both C70260 copper and C75700 nickel silver are copper alloys. They have 67% of their average alloy composition in common.
For each property being compared, the top bar is C70260 copper and the bottom bar is C75700 nickel silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 120 |
| Elongation at Break, % | 9.5 to 19 | |
| 3.2 to 22 |
| Poisson's Ratio | 0.34 | |
| 0.32 |
| Shear Modulus, GPa | 44 | |
| 45 |
| Shear Strength, MPa | 320 to 450 | |
| 350 to 370 |
| Tensile Strength: Ultimate (UTS), MPa | 520 to 760 | |
| 590 to 610 |
| Tensile Strength: Yield (Proof), MPa | 410 to 650 | |
| 470 to 580 |
Thermal Properties
| Latent Heat of Fusion, J/g | 220 | |
| 200 |
| Maximum Temperature: Mechanical, °C | 200 | |
| 180 |
| Melting Completion (Liquidus), °C | 1060 | |
| 1040 |
| Melting Onset (Solidus), °C | 1040 | |
| 990 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 390 |
| Thermal Conductivity, W/m-K | 160 | |
| 40 |
| Thermal Expansion, µm/m-K | 17 | |
| 16 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 40 to 50 | |
| 8.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 40 to 51 | |
| 8.6 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 31 | |
| 30 |
| Density, g/cm3 | 8.9 | |
| 8.4 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 3.6 |
| Embodied Energy, MJ/kg | 43 | |
| 56 |
| Embodied Water, L/kg | 310 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 46 to 140 | |
| 19 to 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 710 to 1810 | |
| 930 to 1410 |
| Stiffness to Weight: Axial, points | 7.3 | |
| 7.8 |
| Stiffness to Weight: Bending, points | 18 | |
| 19 |
| Strength to Weight: Axial, points | 16 to 24 | |
| 19 to 20 |
| Strength to Weight: Bending, points | 16 to 21 | |
| 19 |
| Thermal Diffusivity, mm2/s | 45 | |
| 12 |
| Thermal Shock Resistance, points | 18 to 27 | |
| 22 to 23 |
Alloy Composition
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| Copper (Cu), % | 95.8 to 98.8 | |
| 63.5 to 66.5 |
| Iron (Fe), % | 0 | |
| 0 to 0.25 |
| Lead (Pb), % | 0 | |
| 0 to 0.050 |
| Manganese (Mn), % | 0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 1.0 to 3.0 | |
| 11 to 13 |
| Phosphorus (P), % | 0 to 0.010 | |
| 0 |
| Silicon (Si), % | 0.2 to 0.7 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 19.2 to 25.5 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |