AWS BAu-5 vs. C71000 Copper-nickel
AWS BAu-5 belongs to the otherwise unclassified metals classification, while C71000 copper-nickel belongs to the copper alloys. They have a modest 21% of their average alloy composition in common, which, by itself, doesn't mean much. There are 15 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.
For each property being compared, the top bar is AWS BAu-5 and the bottom bar is C71000 copper-nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 140 | |
| 130 |
| Poisson's Ratio | 0.37 | |
| 0.33 |
| Shear Modulus, GPa | 50 | |
| 49 |
| Tensile Strength: Ultimate (UTS), MPa | 210 | |
| 320 to 560 |
Thermal Properties
| Latent Heat of Fusion, J/g | 180 | |
| 230 |
| Melting Completion (Liquidus), °C | 1170 | |
| 1200 |
| Melting Onset (Solidus), °C | 1140 | |
| 1150 |
| Specific Heat Capacity, J/kg-K | 280 | |
| 400 |
| Thermal Expansion, µm/m-K | 12 | |
| 15 |
Otherwise Unclassified Properties
| Density, g/cm3 | 13 | |
| 8.9 |
Common Calculations
| Stiffness to Weight: Axial, points | 5.8 | |
| 8.2 |
| Stiffness to Weight: Bending, points | 13 | |
| 19 |
| Strength to Weight: Axial, points | 4.5 | |
| 10 to 18 |
| Strength to Weight: Bending, points | 6.0 | |
| 12 to 17 |
| Thermal Shock Resistance, points | 9.0 | |
| 12 to 20 |
Alloy Composition
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| Copper (Cu), % | 0 | |
| 73.5 to 80.5 |
| Gold (Au), % | 29.5 to 30.5 | |
| 0 |
| Iron (Fe), % | 0 | |
| 0.5 to 1.0 |
| Lead (Pb), % | 0 | |
| 0 to 0.050 |
| Manganese (Mn), % | 0 | |
| 0 to 1.0 |
| Nickel (Ni), % | 35.5 to 36.4 | |
| 19 to 23 |
| Palladium (Pd), % | 33.5 to 34.5 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 1.0 |
| Residuals, % | 0 to 0.15 | |
| 0 to 0.5 |