ASTM B477 Au-Ni-Ag vs. C23400 Brass
ASTM B477 Au-Ni-Ag belongs to the otherwise unclassified metals classification, while C23400 brass belongs to the copper alloys. There are 15 material properties with values for both materials. Properties with values for just one material (14, 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 C23400 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 | |
| 370 to 640 |
Thermal Properties
| Latent Heat of Fusion, J/g | 80 | |
| 190 |
| Melting Completion (Liquidus), °C | 1010 | |
| 970 |
| Melting Onset (Solidus), °C | 930 | |
| 930 |
| Specific Heat Capacity, J/kg-K | 160 | |
| 390 |
| Thermal Expansion, µm/m-K | 15 | |
| 19 |
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 | |
| 12 to 21 |
| Strength to Weight: Bending, points | 6.0 to 8.8 | |
| 13 to 19 |
| Thermal Shock Resistance, points | 16 to 28 | |
| 12 to 22 |
Alloy Composition
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| Copper (Cu), % | 0 | |
| 81 to 84 |
| 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 | |
| 15.7 to 19 |
| Residuals, % | 0 to 0.3 | |
| 0 to 0.2 |