ASTM B477 Au-Ni-Ag vs. AWS BAg-19
Both ASTM B477 Au-Ni-Ag and AWS BAg-19 are otherwise unclassified metals. They have a modest 22% of their average alloy composition in common, which, by itself, doesn't mean much. There are 15 material properties with values for both materials. Properties with values for just one material (6, 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 AWS BAg-19.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 95 | |
| 74 |
| Poisson's Ratio | 0.41 | |
| 0.37 |
| Shear Modulus, GPa | 34 | |
| 27 |
| Tensile Strength: Ultimate (UTS), MPa | 310 to 550 | |
| 140 |
Thermal Properties
| Latent Heat of Fusion, J/g | 80 | |
| 120 |
| Melting Completion (Liquidus), °C | 1010 | |
| 890 |
| Melting Onset (Solidus), °C | 930 | |
| 760 |
| Specific Heat Capacity, J/kg-K | 160 | |
| 250 |
| Thermal Expansion, µm/m-K | 15 | |
| 20 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 10 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.1 | |
| 4.0 |
| Stiffness to Weight: Bending, points | 8.9 | |
| 14 |
| Strength to Weight: Axial, points | 5.0 to 9.0 | |
| 3.8 |
| Strength to Weight: Bending, points | 6.0 to 8.8 | |
| 5.8 |
| Thermal Shock Resistance, points | 16 to 28 | |
| 6.9 |
Alloy Composition
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| Copper (Cu), % | 0 | |
| 6.6 to 7.9 |
| Gold (Au), % | 74.2 to 75.8 | |
| 0 |
| Lithium (Li), % | 0 | |
| 0.15 to 0.3 |
| Nickel (Ni), % | 2.6 to 3.4 | |
| 0 |
| Silver (Ag), % | 21.4 to 22.6 | |
| 92 to 93 |
| Residuals, % | 0 to 0.3 | |
| 0 to 0.15 |