ASTM B477 Au-Ni-Ag vs. Class 4 Tungsten
Both ASTM B477 Au-Ni-Ag and class 4 tungsten are otherwise unclassified metals. There are 16 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 class 4 tungsten.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 95 | |
| 270 |
| Elongation at Break, % | 5.5 to 11 | |
| 2.3 |
| Poisson's Ratio | 0.41 | |
| 0.28 |
| Shear Modulus, GPa | 34 | |
| 110 |
| Tensile Strength: Ultimate (UTS), MPa | 310 to 550 | |
| 790 |
Thermal Properties
| Latent Heat of Fusion, J/g | 80 | |
| 170 |
| Specific Heat Capacity, J/kg-K | 160 | |
| 130 |
| Thermal Expansion, µm/m-K | 15 | |
| 4.5 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 14 | |
| 17 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.5 | |
| 9.7 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 16 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.1 | |
| 9.6 |
| Stiffness to Weight: Bending, points | 8.9 | |
| 14 |
| Strength to Weight: Axial, points | 5.0 to 9.0 | |
| 14 |
| Strength to Weight: Bending, points | 6.0 to 8.8 | |
| 12 |
| Thermal Shock Resistance, points | 16 to 28 | |
| 46 |
Alloy Composition
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| Gold (Au), % | 74.2 to 75.8 | |
| 0 |
| Nickel (Ni), % | 2.6 to 3.4 | |
| 0 |
| Silver (Ag), % | 21.4 to 22.6 | |
| 0 |
| Tungsten (W), % | 0 | |
| 97 |
| Residuals, % | 0 to 0.3 | |
| 3.0 |