ASTM B522 Class I vs. 90-silver 10-nickel
Both ASTM B522 class I and 90-silver 10-nickel are otherwise unclassified metals. They have a modest 25% of their average alloy composition in common, which, by itself, doesn't mean much. There are 17 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.
For each property being compared, the top bar is ASTM B522 class I and the bottom bar is 90-silver 10-nickel.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 96 | |
| 82 |
| Poisson's Ratio | 0.41 | |
| 0.36 |
| Shear Modulus, GPa | 34 | |
| 30 |
| Tensile Strength: Ultimate (UTS), MPa | 280 to 490 | |
| 250 to 420 |
Thermal Properties
| Latent Heat of Fusion, J/g | 77 | |
| 130 |
| Melting Completion (Liquidus), °C | 1030 | |
| 840 |
| Melting Onset (Solidus), °C | 1030 | |
| 960 |
| Specific Heat Capacity, J/kg-K | 160 | |
| 260 |
| Thermal Expansion, µm/m-K | 15 | |
| 19 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 11 | |
| 90 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 5.8 | |
| 79 |
Otherwise Unclassified Properties
| Density, g/cm3 | 17 | |
| 10 |
Common Calculations
| Stiffness to Weight: Axial, points | 3.1 | |
| 4.4 |
| Stiffness to Weight: Bending, points | 8.9 | |
| 14 |
| Strength to Weight: Axial, points | 4.4 to 7.8 | |
| 6.7 to 11 |
| Strength to Weight: Bending, points | 5.5 to 8.0 | |
| 8.5 to 12 |
| Thermal Shock Resistance, points | 13 to 24 | |
| 11 to 19 |
Alloy Composition
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| Gold (Au), % | 68 to 70 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 8.8 to 11 |
| Platinum (Pt), % | 5.0 to 7.0 | |
| 0 |
| Silver (Ag), % | 23.5 to 26.5 | |
| 89 to 91 |
| Residuals, % | 0 to 0.35 | |
| 0 to 0.2 |