ASTM B477 Au-Ni-Ag vs. R05400 Tantalum
Both ASTM B477 Au-Ni-Ag and R05400 tantalum are otherwise unclassified metals. There are 14 material properties with values for both materials. Properties with values for just one material (12, 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 R05400 tantalum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 95 | |
| 190 |
| Elongation at Break, % | 5.5 to 11 | |
| 1.1 to 28 |
| Poisson's Ratio | 0.41 | |
| 0.34 |
| Shear Modulus, GPa | 34 | |
| 69 |
| Tensile Strength: Ultimate (UTS), MPa | 310 to 550 | |
| 210 to 540 |
Thermal Properties
| Latent Heat of Fusion, J/g | 80 | |
| 140 |
| Specific Heat Capacity, J/kg-K | 160 | |
| 140 |
| Thermal Expansion, µm/m-K | 15 | |
| 6.5 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 17 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.1 | |
| 6.2 |
| Stiffness to Weight: Bending, points | 8.9 | |
| 11 |
| Strength to Weight: Axial, points | 5.0 to 9.0 | |
| 3.6 to 9.0 |
| Strength to Weight: Bending, points | 6.0 to 8.8 | |
| 4.8 to 8.8 |
| Thermal Shock Resistance, points | 16 to 28 | |
| 13 to 32 |
Alloy Composition
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| Carbon (C), % | 0 | |
| 0 to 0.010 |
| Gold (Au), % | 74.2 to 75.8 | |
| 0 |
| Hydrogen (H), % | 0 | |
| 0 to 0.0015 |
| Iron (Fe), % | 0 | |
| 0 to 0.010 |
| Molybdenum (Mo), % | 0 | |
| 0 to 0.020 |
| Nickel (Ni), % | 2.6 to 3.4 | |
| 0 to 0.010 |
| Niobium (Nb), % | 0 | |
| 0 to 0.1 |
| Nitrogen (N), % | 0 | |
| 0 to 0.010 |
| Oxygen (O), % | 0 | |
| 0 to 0.030 |
| Silicon (Si), % | 0 | |
| 0 to 0.0050 |
| Silver (Ag), % | 21.4 to 22.6 | |
| 0 |
| Tantalum (Ta), % | 0 | |
| 99.7 to 100 |
| Titanium (Ti), % | 0 | |
| 0 to 0.010 |
| Tungsten (W), % | 0 | |
| 0 to 0.050 |
| Residuals, % | 0 to 0.3 | |
| 0 |