ASTM B477 Au-Ni-Ag vs. EN 1.4869 Casting Alloy
ASTM B477 Au-Ni-Ag belongs to the otherwise unclassified metals classification, while EN 1.4869 casting alloy belongs to the nickel alloys. There are 16 material properties with values for both materials. Properties with values for just one material (15, 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 EN 1.4869 casting alloy.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 95 | |
| 210 |
| Elongation at Break, % | 5.5 to 11 | |
| 5.7 |
| Poisson's Ratio | 0.41 | |
| 0.28 |
| Shear Modulus, GPa | 34 | |
| 80 |
| Tensile Strength: Ultimate (UTS), MPa | 310 to 550 | |
| 540 |
Thermal Properties
| Latent Heat of Fusion, J/g | 80 | |
| 330 |
| Melting Completion (Liquidus), °C | 1010 | |
| 1450 |
| Melting Onset (Solidus), °C | 930 | |
| 1390 |
| Specific Heat Capacity, J/kg-K | 160 | |
| 460 |
| Thermal Expansion, µm/m-K | 15 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 8.5 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.1 | |
| 13 |
| Stiffness to Weight: Bending, points | 8.9 | |
| 23 |
| Strength to Weight: Axial, points | 5.0 to 9.0 | |
| 18 |
| Strength to Weight: Bending, points | 6.0 to 8.8 | |
| 17 |
| Thermal Shock Resistance, points | 16 to 28 | |
| 14 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0.45 to 0.55 |
| Chromium (Cr), % | 0 | |
| 24 to 26 |
| Cobalt (Co), % | 0 | |
| 14 to 16 |
| Gold (Au), % | 74.2 to 75.8 | |
| 0 |
| Iron (Fe), % | 0 | |
| 11.4 to 23.6 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Nickel (Ni), % | 2.6 to 3.4 | |
| 33 to 37 |
| Phosphorus (P), % | 0 | |
| 0 to 0.040 |
| Silicon (Si), % | 0 | |
| 1.0 to 2.0 |
| Silver (Ag), % | 21.4 to 22.6 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0 to 0.030 |
| Tungsten (W), % | 0 | |
| 4.0 to 6.0 |
| Residuals, % | 0 to 0.3 | |
| 0 |