C66900 Brass vs. C74500 Nickel Silver
Both C66900 brass and C74500 nickel silver are copper alloys. They have 88% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.
For each property being compared, the top bar is C66900 brass and the bottom bar is C74500 nickel silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 120 |
| Elongation at Break, % | 1.1 to 26 | |
| 3.0 to 24 |
| Poisson's Ratio | 0.32 | |
| 0.32 |
| Rockwell B Hardness | 65 to 100 | |
| 66 to 94 |
| Rockwell Superficial 30T Hardness | 60 to 88 | |
| 60 to 79 |
| Shear Modulus, GPa | 45 | |
| 44 |
| Shear Strength, MPa | 290 to 440 | |
| 310 to 380 |
| Tensile Strength: Ultimate (UTS), MPa | 460 to 770 | |
| 390 to 700 |
| Tensile Strength: Yield (Proof), MPa | 330 to 760 | |
| 380 to 600 |
Thermal Properties
| Latent Heat of Fusion, J/g | 190 | |
| 190 |
| Maximum Temperature: Mechanical, °C | 150 | |
| 170 |
| Melting Completion (Liquidus), °C | 860 | |
| 1020 |
| Melting Onset (Solidus), °C | 850 | |
| 970 |
| Specific Heat Capacity, J/kg-K | 400 | |
| 390 |
| Thermal Expansion, µm/m-K | 20 | |
| 19 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 3.4 | |
| 9.0 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 3.8 | |
| 9.7 |
Otherwise Unclassified Properties
| Base Metal Price, % relative | 23 | |
| 29 |
| Density, g/cm3 | 8.2 | |
| 8.3 |
| Embodied Carbon, kg CO2/kg material | 2.8 | |
| 3.4 |
| Embodied Energy, MJ/kg | 46 | |
| 54 |
| Embodied Water, L/kg | 310 | |
| 310 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 4.6 to 200 | |
| 12 to 160 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 460 to 2450 | |
| 620 to 1540 |
| Stiffness to Weight: Axial, points | 8.1 | |
| 7.7 |
| Stiffness to Weight: Bending, points | 20 | |
| 19 |
| Strength to Weight: Axial, points | 15 to 26 | |
| 13 to 23 |
| Strength to Weight: Bending, points | 16 to 23 | |
| 14 to 21 |
| Thermal Shock Resistance, points | 14 to 23 | |
| 13 to 23 |
Alloy Composition
| Copper (Cu), % | 62.5 to 64.5 | |
| 63.5 to 66.5 |
| Iron (Fe), % | 0 to 0.25 | |
| 0 to 0.25 |
| Lead (Pb), % | 0 to 0.050 | |
| 0 to 0.1 |
| Manganese (Mn), % | 11.5 to 12.5 | |
| 0 to 0.5 |
| Nickel (Ni), % | 0 | |
| 9.0 to 11 |
| Zinc (Zn), % | 22.5 to 26 | |
| 21.2 to 27.5 |
| Residuals, % | 0 | |
| 0 to 0.5 |