C46500 Brass vs. C74500 Nickel Silver
Both C46500 brass and C74500 nickel silver are copper alloys. They have 85% of their average alloy composition in common.
For each property being compared, the top bar is C46500 brass and the bottom bar is C74500 nickel silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 120 |
| Elongation at Break, % | 18 to 50 | |
| 3.0 to 24 |
| Poisson's Ratio | 0.31 | |
| 0.32 |
| Rockwell B Hardness | 55 to 95 | |
| 66 to 94 |
| Rockwell Superficial 30T Hardness | 55 to 68 | |
| 60 to 79 |
| Shear Modulus, GPa | 40 | |
| 44 |
| Shear Strength, MPa | 280 to 380 | |
| 310 to 380 |
| Tensile Strength: Ultimate (UTS), MPa | 380 to 610 | |
| 390 to 700 |
| Tensile Strength: Yield (Proof), MPa | 190 to 490 | |
| 380 to 600 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 170 |
| Melting Completion (Liquidus), °C | 900 | |
| 1020 |
| Melting Onset (Solidus), °C | 890 | |
| 970 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 390 |
| Thermal Conductivity, W/m-K | 120 | |
| 45 |
| Thermal Expansion, µm/m-K | 21 | |
| 19 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 26 | |
| 9.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 29 | |
| 9.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 29 |
| Density, g/cm3 | 8.0 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 3.4 |
| Embodied Energy, MJ/kg | 47 | |
| 54 |
| Embodied Water, L/kg | 330 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 99 to 160 | |
| 12 to 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 170 to 1170 | |
| 620 to 1540 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.7 |
| Stiffness to Weight: Bending, points | 20 | |
| 19 |
| Strength to Weight: Axial, points | 13 to 21 | |
| 13 to 23 |
| Strength to Weight: Bending, points | 15 to 20 | |
| 14 to 21 |
| Thermal Diffusivity, mm2/s | 38 | |
| 14 |
| Thermal Shock Resistance, points | 13 to 20 | |
| 13 to 23 |
Alloy Composition
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| Arsenic (As), % | 0.020 to 0.060 | |
| 0 |
| Copper (Cu), % | 59 to 62 | |
| 63.5 to 66.5 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.25 |
| Lead (Pb), % | 0 to 0.2 | |
| 0 to 0.1 |
| Manganese (Mn), % | 0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 | |
| 9.0 to 11 |
| Tin (Sn), % | 0.5 to 1.0 | |
| 0 |
| Zinc (Zn), % | 36.2 to 40.5 | |
| 21.2 to 27.5 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.5 |