AWS BAu-1 vs. ASTM B541 Gold
Both AWS BAu-1 and ASTM B541 gold are otherwise unclassified metals. They have 52% of their average alloy composition in common. There are 15 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.
For each property being compared, the top bar is AWS BAu-1 and the bottom bar is ASTM B541 gold.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Poisson's Ratio | 0.37 | |
| 0.4 |
| Shear Modulus, GPa | 40 | |
| 38 |
| Tensile Strength: Ultimate (UTS), MPa | 210 | |
| 670 to 1180 |
Thermal Properties
| Latent Heat of Fusion, J/g | 150 | |
| 90 |
| Melting Completion (Liquidus), °C | 1020 | |
| 1110 |
| Melting Onset (Solidus), °C | 990 | |
| 930 |
| Specific Heat Capacity, J/kg-K | 290 | |
| 170 |
| Thermal Expansion, µm/m-K | 16 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 17 |
Common Calculations
| Stiffness to Weight: Axial, points | 4.7 | |
| 3.4 |
| Stiffness to Weight: Bending, points | 12 | |
| 9.0 |
| Strength to Weight: Axial, points | 4.5 | |
| 11 to 19 |
| Strength to Weight: Bending, points | 6.1 | |
| 9.8 to 14 |
| Thermal Shock Resistance, points | 8.5 | |
| 36 to 63 |
Alloy Composition
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| Copper (Cu), % | 61.9 to 63 | |
| 13.5 to 15.5 |
| Gold (Au), % | 37 to 38 | |
| 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 0.15 | |
| 0 to 0.4 |