ASTM B477 Au-Ni-Ag vs. C19200 Copper
ASTM B477 Au-Ni-Ag belongs to the otherwise unclassified metals classification, while C19200 copper belongs to the copper alloys. There are 19 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 C19200 copper.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 95 | |
| 120 |
| Elongation at Break, % | 5.5 to 11 | |
| 2.0 to 35 |
| Poisson's Ratio | 0.41 | |
| 0.34 |
| Shear Modulus, GPa | 34 | |
| 44 |
| Shear Strength, MPa | 190 to 320 | |
| 190 to 300 |
| Tensile Strength: Ultimate (UTS), MPa | 310 to 550 | |
| 280 to 530 |
Thermal Properties
| Latent Heat of Fusion, J/g | 80 | |
| 210 |
| Melting Completion (Liquidus), °C | 1010 | |
| 1080 |
| Melting Onset (Solidus), °C | 930 | |
| 1080 |
| Specific Heat Capacity, J/kg-K | 160 | |
| 390 |
| Thermal Expansion, µm/m-K | 15 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 14 | |
| 58 to 74 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 7.5 | |
| 58 to 75 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 8.9 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.1 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 8.9 | |
| 18 |
| Strength to Weight: Axial, points | 5.0 to 9.0 | |
| 8.8 to 17 |
| Strength to Weight: Bending, points | 6.0 to 8.8 | |
| 11 to 16 |
| Thermal Shock Resistance, points | 16 to 28 | |
| 10 to 19 |
Alloy Composition
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| Copper (Cu), % | 0 | |
| 98.5 to 99.19 |
| Gold (Au), % | 74.2 to 75.8 | |
| 0 |
| Iron (Fe), % | 0 | |
| 0.8 to 1.2 |
| Lead (Pb), % | 0 | |
| 0 to 0.030 |
| Nickel (Ni), % | 2.6 to 3.4 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0.010 to 0.040 |
| Silver (Ag), % | 21.4 to 22.6 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.2 |
| Residuals, % | 0 to 0.3 | |
| 0 to 0.2 |