C74500 Nickel Silver vs. C68800 Brass
Both C74500 nickel silver and C68800 brass are copper alloys. They have 88% of their average alloy composition in common.
For each property being compared, the top bar is C74500 nickel silver and the bottom bar is C68800 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 110 |
| Elongation at Break, % | 3.0 to 24 | |
| 2.0 to 36 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Rockwell B Hardness | 66 to 94 | |
| 81 to 99 |
| Rockwell Superficial 30T Hardness | 60 to 79 | |
| 71 to 83 |
| Shear Modulus, GPa | 44 | |
| 41 |
| Shear Strength, MPa | 310 to 380 | |
| 380 to 510 |
| Tensile Strength: Ultimate (UTS), MPa | 390 to 700 | |
| 570 to 890 |
| Tensile Strength: Yield (Proof), MPa | 380 to 600 | |
| 390 to 790 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 170 | |
| 160 |
| Melting Completion (Liquidus), °C | 1020 | |
| 960 |
| Melting Onset (Solidus), °C | 970 | |
| 950 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 400 |
| Thermal Conductivity, W/m-K | 45 | |
| 40 |
| Thermal Expansion, µm/m-K | 19 | |
| 19 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 9.0 | |
| 18 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 9.7 | |
| 20 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 29 | |
| 26 |
| Density, g/cm3 | 8.3 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 3.4 | |
| 2.8 |
| Embodied Energy, MJ/kg | 54 | |
| 48 |
| Embodied Water, L/kg | 310 | |
| 350 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 12 to 160 | |
| 16 to 180 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 620 to 1540 | |
| 710 to 2860 |
| Stiffness to Weight: Axial, points | 7.7 | |
| 7.3 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 13 to 23 | |
| 19 to 30 |
| Strength to Weight: Bending, points | 14 to 21 | |
| 19 to 25 |
| Thermal Diffusivity, mm2/s | 14 | |
| 12 |
| Thermal Shock Resistance, points | 13 to 23 | |
| 19 to 30 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 3.0 to 3.8 |
| Cobalt (Co), % | 0 | |
| 0.25 to 0.55 |
| Copper (Cu), % | 63.5 to 66.5 | |
| 70.8 to 75.5 |
| Iron (Fe), % | 0 to 0.25 | |
| 0 to 0.2 |
| Lead (Pb), % | 0 to 0.1 | |
| 0 to 0.050 |
| Manganese (Mn), % | 0 to 0.5 | |
| 0 |
| Nickel (Ni), % | 9.0 to 11 | |
| 0 |
| Zinc (Zn), % | 21.2 to 27.5 | |
| 21.3 to 24.1 |
| Residuals, % | 0 to 0.5 | |
| 0 to 0.5 |