ASTM B541 Gold vs. C14700 Copper
ASTM B541 gold belongs to the otherwise unclassified metals classification, while C14700 copper 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 C14700 copper.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 120 |
| Elongation at Break, % | 6.0 to 14 | |
| 9.1 to 35 |
| Poisson's Ratio | 0.4 | |
| 0.34 |
| Shear Modulus, GPa | 38 | |
| 43 |
| Shear Strength, MPa | 410 to 690 | |
| 160 to 190 |
| Tensile Strength: Ultimate (UTS), MPa | 670 to 1180 | |
| 240 to 320 |
| Tensile Strength: Yield (Proof), MPa | 480 to 900 | |
| 85 to 250 |
Thermal Properties
| Latent Heat of Fusion, J/g | 90 | |
| 210 |
| Melting Completion (Liquidus), °C | 1110 | |
| 1080 |
| Melting Onset (Solidus), °C | 930 | |
| 1070 |
| Specific Heat Capacity, J/kg-K | 170 | |
| 390 |
| Thermal Expansion, µm/m-K | 13 | |
| 17 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 7.7 to 12 | |
| 95 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 4.0 to 6.2 | |
| 96 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 8.9 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 65 to 91 | |
| 25 to 65 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 1090 to 3830 | |
| 31 to 280 |
| Stiffness to Weight: Axial, points | 3.4 | |
| 7.2 |
| Stiffness to Weight: Bending, points | 9.0 | |
| 18 |
| Strength to Weight: Axial, points | 11 to 19 | |
| 7.3 to 10 |
| Strength to Weight: Bending, points | 9.8 to 14 | |
| 9.5 to 12 |
| Thermal Shock Resistance, points | 36 to 63 | |
| 8.4 to 12 |
Alloy Composition
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| Copper (Cu), % | 13.5 to 15.5 | |
| 99.395 to 99.798 |
| Gold (Au), % | 70.5 to 72.5 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0.0020 to 0.0050 |
| Platinum (Pt), % | 8.0 to 9.0 | |
| 0 |
| Silver (Ag), % | 4.0 to 5.0 | |
| 0 |
| Sulfur (S), % | 0 | |
| 0.2 to 0.5 |
| Zinc (Zn), % | 0.7 to 1.3 | |
| 0 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.1 |