ASTM B541 Gold vs. C61400 Bronze
ASTM B541 gold belongs to the otherwise unclassified metals classification, while C61400 bronze belongs to the copper alloys. There are 22 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.
For each property being compared, the top bar is ASTM B541 gold and the bottom bar is C61400 bronze.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 110 |
| Elongation at Break, % | 6.0 to 14 | |
| 34 to 40 |
| Poisson's Ratio | 0.4 | |
| 0.34 |
| Shear Modulus, GPa | 38 | |
| 43 |
| Shear Strength, MPa | 410 to 690 | |
| 370 to 380 |
| Tensile Strength: Ultimate (UTS), MPa | 670 to 1180 | |
| 540 to 570 |
| Tensile Strength: Yield (Proof), MPa | 480 to 900 | |
| 220 to 270 |
Thermal Properties
| Latent Heat of Fusion, J/g | 90 | |
| 220 |
| Melting Completion (Liquidus), °C | 1110 | |
| 1050 |
| Melting Onset (Solidus), °C | 930 | |
| 1040 |
| Specific Heat Capacity, J/kg-K | 170 | |
| 420 |
| Thermal Expansion, µm/m-K | 13 | |
| 18 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.7 to 12 | |
| 14 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 4.0 to 6.2 | |
| 15 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 8.5 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 65 to 91 | |
| 160 to 170 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1090 to 3830 | |
| 210 to 310 |
| Stiffness to Weight: Axial, points | 3.4 | |
| 7.5 |
| Stiffness to Weight: Bending, points | 9.0 | |
| 19 |
| Strength to Weight: Axial, points | 11 to 19 | |
| 18 to 19 |
| Strength to Weight: Bending, points | 9.8 to 14 | |
| 17 to 18 |
| Thermal Shock Resistance, points | 36 to 63 | |
| 18 to 20 |
Alloy Composition
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| Aluminum (Al), % | 0 | |
| 6.0 to 8.0 |
| Copper (Cu), % | 13.5 to 15.5 | |
| 86 to 92.5 |
| Gold (Au), % | 70.5 to 72.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 1.5 to 3.5 |
| Lead (Pb), % | 0 | |
| 0 to 0.010 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.015 |
| Platinum (Pt), % | 8.0 to 9.0 | |
| 0 |
| Silver (Ag), % | 4.0 to 5.0 | |
| 0 |
| Zinc (Zn), % | 0.7 to 1.3 | |
| 0 to 1.0 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.5 |