C71500 Copper-nickel vs. C26800 Brass
Both C71500 copper-nickel and C26800 brass are copper alloys. They have 67% of their average alloy composition in common.
For each property being compared, the top bar is C71500 copper-nickel and the bottom bar is C26800 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 140 | |
| 110 |
| Poisson's Ratio | 0.33 | |
| 0.31 |
| Rockwell B Hardness | 40 to 89 | |
| 53 to 91 |
| Shear Modulus, GPa | 52 | |
| 40 |
| Tensile Strength: Ultimate (UTS), MPa | 380 to 620 | |
| 310 to 650 |
Thermal Properties
| Latent Heat of Fusion, J/g | 230 | |
| 180 |
| Maximum Temperature: Mechanical, °C | 260 | |
| 130 |
| Melting Completion (Liquidus), °C | 1240 | |
| 930 |
| Melting Onset (Solidus), °C | 1170 | |
| 900 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 390 |
| Thermal Conductivity, W/m-K | 28 | |
| 120 |
| Thermal Expansion, µm/m-K | 16 | |
| 20 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 4.6 | |
| 27 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 4.7 | |
| 30 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 41 | |
| 24 |
| Calomel Potential, mV | -250 | |
| -360 |
| Density, g/cm3 | 8.9 | |
| 8.1 |
| Embodied Carbon, kg CO2/kg material | 5.1 | |
| 2.7 |
| Embodied Energy, MJ/kg | 74 | |
| 45 |
| Embodied Water, L/kg | 280 | |
| 320 |
Common Calculations
| Stiffness to Weight: Axial, points | 8.6 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 12 to 19 | |
| 11 to 22 |
| Strength to Weight: Bending, points | 13 to 18 | |
| 13 to 21 |
| Thermal Diffusivity, mm2/s | 7.7 | |
| 37 |
| Thermal Shock Resistance, points | 12 to 20 | |
| 10 to 22 |
Alloy Composition
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| Copper (Cu), % | 63.5 to 70.6 | |
| 64 to 68.5 |
| Iron (Fe), % | 0.4 to 1.0 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.15 |
| Manganese (Mn), % | 0 to 1.0 | |
| 0 |
| Nickel (Ni), % | 29 to 33 | |
| 0 |
| Zinc (Zn), % | 0 to 1.0 | |
| 31 to 36 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.3 |