C34500 Brass vs. C74400 Nickel Silver
Both C34500 brass and C74400 nickel silver are copper alloys. They have a very high 97% of their average alloy composition in common.
For each property being compared, the top bar is C34500 brass and the bottom bar is C74400 nickel silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 110 |
| Elongation at Break, % | 12 to 28 | |
| 43 |
| Poisson's Ratio | 0.31 | |
| 0.31 |
| Shear Modulus, GPa | 40 | |
| 39 |
| Shear Strength, MPa | 220 to 260 | |
| 240 |
| Tensile Strength: Ultimate (UTS), MPa | 340 to 430 | |
| 350 |
| Tensile Strength: Yield (Proof), MPa | 120 to 180 | |
| 120 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 180 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 140 |
| Melting Completion (Liquidus), °C | 910 | |
| 930 |
| Melting Onset (Solidus), °C | 890 | |
| 910 |
| Specific Heat Capacity, J/kg-K | 380 | |
| 390 |
| Thermal Conductivity, W/m-K | 120 | |
| 120 |
| Thermal Expansion, µm/m-K | 21 | |
| 20 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 26 | |
| 26 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 29 | |
| 29 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 24 | |
| 25 |
| Density, g/cm3 | 8.2 | |
| 8.2 |
| Embodied Carbon, kg CO2/kg material | 2.6 | |
| 2.9 |
| Embodied Energy, MJ/kg | 45 | |
| 48 |
| Embodied Water, L/kg | 320 | |
| 320 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 42 to 75 | |
| 120 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 69 to 160 | |
| 63 |
| Stiffness to Weight: Axial, points | 7.1 | |
| 7.4 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 12 to 15 | |
| 12 |
| Strength to Weight: Bending, points | 13 to 16 | |
| 14 |
| Thermal Diffusivity, mm2/s | 37 | |
| 37 |
| Thermal Shock Resistance, points | 11 to 14 | |
| 12 |
Alloy Composition
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| Copper (Cu), % | 62 to 65 | |
| 62 to 66 |
| Iron (Fe), % | 0 to 0.15 | |
| 0 to 0.050 |
| Lead (Pb), % | 1.5 to 2.5 | |
| 0 to 0.050 |
| Nickel (Ni), % | 0 | |
| 2.0 to 4.0 |
| Zinc (Zn), % | 32 to 36.5 | |
| 29.6 to 36 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.3 |