ASTM B477 Au-Ni-Ag vs. C24000 Brass
ASTM B477 Au-Ni-Ag belongs to the otherwise unclassified metals classification, while C24000 brass belongs to the copper alloys. There are 17 material properties with values for both materials. Properties with values for just one material (13, in this case) are not shown.
For each property being compared, the top bar is ASTM B477 Au-Ni-Ag and the bottom bar is C24000 brass.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 95 | |
| 110 |
| Poisson's Ratio | 0.41 | |
| 0.32 |
| Shear Modulus, GPa | 34 | |
| 42 |
| Tensile Strength: Ultimate (UTS), MPa | 310 to 550 | |
| 310 to 640 |
Thermal Properties
| Latent Heat of Fusion, J/g | 80 | |
| 190 |
| Melting Completion (Liquidus), °C | 1010 | |
| 1000 |
| Melting Onset (Solidus), °C | 930 | |
| 970 |
| Specific Heat Capacity, J/kg-K | 160 | |
| 390 |
| Thermal Expansion, µm/m-K | 15 | |
| 19 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 14 | |
| 32 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.5 | |
| 34 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 8.5 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.1 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 8.9 | |
| 19 |
| Strength to Weight: Axial, points | 5.0 to 9.0 | |
| 10 to 21 |
| Strength to Weight: Bending, points | 6.0 to 8.8 | |
| 12 to 20 |
| Thermal Shock Resistance, points | 16 to 28 | |
| 10 to 22 |
Alloy Composition
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| Copper (Cu), % | 0 | |
| 78.5 to 81.5 |
| Gold (Au), % | 74.2 to 75.8 | |
| 0 |
| Iron (Fe), % | 0 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 | |
| 0 to 0.050 |
| Nickel (Ni), % | 2.6 to 3.4 | |
| 0 |
| Silver (Ag), % | 21.4 to 22.6 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 18.2 to 21.5 |
| Residuals, % | 0 to 0.3 | |
| 0 to 0.2 |