C33500 Brass vs. C74500 Nickel Silver
Both C33500 brass and C74500 nickel silver are copper alloys. They have 88% of their average alloy composition in common.
For each property being compared, the top bar is C33500 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, % | 3.0 to 28 | |
| 3.0 to 24 |
| Poisson's Ratio | 0.31 | |
| 0.32 |
| Rockwell B Hardness | 53 to 91 | |
| 66 to 94 |
| Rockwell Superficial 30T Hardness | 52 to 78 | |
| 60 to 79 |
| Shear Modulus, GPa | 40 | |
| 44 |
| Shear Strength, MPa | 220 to 360 | |
| 310 to 380 |
| Tensile Strength: Ultimate (UTS), MPa | 340 to 650 | |
| 390 to 700 |
| Tensile Strength: Yield (Proof), MPa | 120 to 420 | |
| 380 to 600 |
Thermal Properties
| Latent Heat of Fusion, J/g | 170 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 120 | |
| 170 |
| Melting Completion (Liquidus), °C | 930 | |
| 1020 |
| Melting Onset (Solidus), °C | 900 | |
| 970 |
| Specific Heat Capacity, J/kg-K | 390 | |
| 390 |
| Thermal Conductivity, W/m-K | 120 | |
| 45 |
| Thermal Expansion, µm/m-K | 20 | |
| 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 | 24 | |
| 29 |
| Density, g/cm3 | 8.1 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.7 | |
| 3.4 |
| Embodied Energy, MJ/kg | 45 | |
| 54 |
| Embodied Water, L/kg | 320 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 8.0 to 160 | |
| 12 to 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 69 to 860 | |
| 620 to 1540 |
| Stiffness to Weight: Axial, points | 7.2 | |
| 7.7 |
| Stiffness to Weight: Bending, points | 19 | |
| 19 |
| Strength to Weight: Axial, points | 12 to 22 | |
| 13 to 23 |
| Strength to Weight: Bending, points | 13 to 21 | |
| 14 to 21 |
| Thermal Diffusivity, mm2/s | 37 | |
| 14 |
| Thermal Shock Resistance, points | 11 to 22 | |
| 13 to 23 |
Alloy Composition
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| Copper (Cu), % | 62 to 65 | |
| 63.5 to 66.5 |
| Iron (Fe), % | 0 to 0.1 | |
| 0 to 0.25 |
| Lead (Pb), % | 0.25 to 0.7 | |
| 0 to 0.1 |
| Manganese (Mn), % | 0 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 | |
| 9.0 to 11 |
| Zinc (Zn), % | 33.8 to 37.8 | |
| 21.2 to 27.5 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.5 |