ASTM B596 Au-Cu vs. ASTM B541 Gold
Both ASTM B596 Au-Cu and ASTM B541 gold are otherwise unclassified metals. They have 82% of their average alloy composition in common. There are 19 material properties with values for both materials. Properties with values for just one material (4, in this case) are not shown.
For each property being compared, the top bar is ASTM B596 Au-Cu and the bottom bar is ASTM B541 gold.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 110 |
| Elongation at Break, % | 4.3 to 17 | |
| 6.0 to 14 |
| Poisson's Ratio | 0.41 | |
| 0.4 |
| Shear Modulus, GPa | 36 | |
| 38 |
| Shear Strength, MPa | 280 to 360 | |
| 410 to 690 |
| Tensile Strength: Ultimate (UTS), MPa | 450 to 620 | |
| 670 to 1180 |
Thermal Properties
| Latent Heat of Fusion, J/g | 77 | |
| 90 |
| Melting Completion (Liquidus), °C | 1060 | |
| 1110 |
| Melting Onset (Solidus), °C | 930 | |
| 930 |
| Specific Heat Capacity, J/kg-K | 150 | |
| 170 |
| Thermal Expansion, µm/m-K | 14 | |
| 13 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 14 | |
| 7.7 to 12 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 6.7 | |
| 4.0 to 6.2 |
Otherwise Unclassified Properties
| Density, g/cm3 | 18 | |
| 17 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.1 | |
| 3.4 |
| Stiffness to Weight: Bending, points | 8.5 | |
| 9.0 |
| Strength to Weight: Axial, points | 6.8 to 9.4 | |
| 11 to 19 |
| Strength to Weight: Bending, points | 7.1 to 8.8 | |
| 9.8 to 14 |
| Thermal Shock Resistance, points | 22 to 30 | |
| 36 to 63 |
Alloy Composition
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| Copper (Cu), % | 9.0 to 11 | |
| 13.5 to 15.5 |
| Gold (Au), % | 89 to 91 | |
| 70.5 to 72.5 |
| Platinum (Pt), % | 0 | |
| 8.0 to 9.0 |
| Silver (Ag), % | 0 | |
| 4.0 to 5.0 |
| Zinc (Zn), % | 0 | |
| 0.7 to 1.3 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.4 |