R60901 Alloy vs. ASTM B541 Gold
Both R60901 alloy and ASTM B541 gold are otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.
For each property being compared, the top bar is R60901 alloy and the bottom bar is ASTM B541 gold.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 98 | |
| 110 |
| Elongation at Break, % | 17 to 22 | |
| 6.0 to 14 |
| Poisson's Ratio | 0.34 | |
| 0.4 |
| Shear Modulus, GPa | 37 | |
| 38 |
| Tensile Strength: Ultimate (UTS), MPa | 500 to 580 | |
| 670 to 1180 |
| Tensile Strength: Yield (Proof), MPa | 350 to 390 | |
| 480 to 900 |
Thermal Properties
| Latent Heat of Fusion, J/g | 250 | |
| 90 |
| Specific Heat Capacity, J/kg-K | 270 | |
| 170 |
| Thermal Expansion, µm/m-K | 6.3 | |
| 13 |
Otherwise Unclassified Properties
| Density, g/cm3 | 6.6 | |
| 17 |
Common Calculations
| Resilience: Ultimate (Unit Rupture Work), MJ/m3 | 88 to 100 | |
| 65 to 91 |
| Resilience: Unit (Modulus of Resilience), kJ/m3 | 640 to 760 | |
| 1090 to 3830 |
| Stiffness to Weight: Axial, points | 8.3 | |
| 3.4 |
| Stiffness to Weight: Bending, points | 23 | |
| 9.0 |
| Strength to Weight: Axial, points | 21 to 25 | |
| 11 to 19 |
| Strength to Weight: Bending, points | 21 to 24 | |
| 9.8 to 14 |
| Thermal Shock Resistance, points | 58 to 67 | |
| 36 to 63 |
Alloy Composition
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| Copper (Cu), % | 0 | |
| 13.5 to 15.5 |
| Gold (Au), % | 0 | |
| 70.5 to 72.5 |
| Niobium (Nb), % | 2.4 to 2.8 | |
| 0 |
| Platinum (Pt), % | 0 | |
| 8.0 to 9.0 |
| Silver (Ag), % | 0 | |
| 4.0 to 5.0 |
| Zinc (Zn), % | 0 | |
| 0.7 to 1.3 |
| Zirconium (Zr), % | 96.8 to 97.5 | |
| 0 |
| Residuals, % | 0 to 0.29 | |
| 0 to 0.4 |